WO2012108567A1 - System and method for a district network-based internet call service - Google Patents

Abstract

The present invention relates to a system and method for a district network-based Internet call service, and more particularly, to a system and method for a district network-based Internet call service providing a highly-efficient and low-cost business environment that results from having no separate corporate communication costs. According to the system and method, free business contacts may be possible for corporate member-subscribers at no additional cost for communication by using district terminals or mobile terminals, which are always carried by subscribers, regardless of the current position of the subscriber via a switched network installed at a company. Moreover, the system and method may infinitely expand the working radius of cooperate members, may reduce task delays due to lost business contacts, and may provide all calls via a free district-based Internet connection.

Description

Internet call service system based on premises network and its method

The present invention relates to an internal network-based internet call service system and a method thereof, and more particularly, through a fixed intra-company exchange network, corporate member subscribers do not have to worry about their current work location, but are always in the terminal or themselves. Through the mobile terminal (Internet communication devices such as mobile communication terminals, PCs, laptops, etc.), it is possible to freely contact business without additional communication charges, thereby expanding the business radius of corporate members indefinitely, and delayed work due to interruption of business communication. Network-based internet calling service system, which makes it possible to build a high-efficiency work environment at low cost because all calls are made with free internet connection based on the premises network. And to a method thereof.

Recently, thanks to the development of dazzling technology in the field of electronics and telecommunications, we are facing the era of one-man communication devices beyond the one-person communication device. The Internet is active. The development of these technologies is beyond the stage of the exchange of characteristics and data between voice communication-oriented PSTN and data communication-based internet. That is, in the PSTN network, image and data communication is performed in addition to voice calls, and voice calls are made in the Internet network based on VoIP technology.

The above-mentioned VoIP can be said to be an Internet phone made in order to make a call even through the Internet, which is connected like a spider web, and the Internet phone service through an internet network is generally used in three forms.

The first is the Internet phone service method which makes a phone call between computer by embedding internet phone program or accessing the web server with the built-in program. The third method is an Internet phone service method for establishing a call by establishing a call channel between a computer and a PSTN telephone.

In the case of the telephone-to-phone Internet phone service method, a user connects to a wireless network such as Wi-Fi through his mobile terminal and runs an Internet phone application installed on the terminal to make a call with an acquaintance who uses the same application. In this case, the user has a merit that the user can make a call for free without a separate communication charge in a call with an acquaintance using his mobile terminal.

However, this method requires the user to sign up for a service provider performing a suitable Internet phone service (only free calls between members), and additionally, a predetermined identification number must be input to use the Internet phone service.

In addition, the type of application program for the Internet phone service used in the mobile terminal is often different, in which case there is also a problem that the compatibility is not guaranteed. In other words, it has the same method and function as a messenger provided in a web browser of a total service concept, and a free voice call is not made between a user who subscribes to a specific Internet phone service and a user who has subscribed to another Internet phone service. Users who do not subscribe to the phone service has limitations such as charging based on the existing mobile communication charging system.

In particular, such an Internet phone service is immediately available for free calls through a simple sign-up procedure and related application installation as described above, but the call history and call content according to these services are very vulnerable in security problems.

In general, an organization operated by a large number of members, such as a corporation or a corporation, establishes an internal network and solves the security problem of the call history and the contents of the call. In order to install and use it quickly, the security level of the call log and the call contents were lowered. Therefore, even though it is possible to reduce the cost of communication, it is true that there are many obstacles to use for communication and work among members in organizations such as closed companies.

An object of the present invention is to enable the corporate member subscribers to contact the company without any communication charges free of charge through the fixed terminal in the corporate network regardless of their current business location through the terminal and their mobile terminal In addition, it can extend the work radius of corporate members to infinity, improve work delays due to disruption of business contacts, and all calls are made through free internet connection based on the premises network. It is to provide an internal call-based Internet call service system and method that can build a high-efficiency work environment at low cost.

The present invention has been made to solve the above-described problems, according to the present invention, the mobile terminal is matched with the premises terminal in the premises network, and transmits registration information when connected to the Internet; A gateway device configured to receive and register registration information transmitted from a mobile terminal outside the premises network, and to switch and transmit the external network IP address and port information included in the registration information to the premises network IP address and port information; And a premises network exchange apparatus that receives and registers registration information from a mobile terminal in the premises network, and registers premises network IP address and port information transmitted from the gateway device. In addition, the premises network switching device attempts an incoming call to the mobile terminal through the premises network in response to the premises network incoming call request to the premises terminal, or transmits the premises network incoming call routing request to the gateway device It provides an internal call-based Internet call service system characterized in that the incoming call to the mobile terminal.

According to another aspect of the present invention, mobile terminals located in the premises network or located outside the premises network register their location with the gateway device and the premises network exchange device when accessing the Internet, and manage the registration information of each mobile terminal. When the premises network switching device receives an incoming call to the premises terminal in the premises network, it attempts to make a call to the mobile terminal through the premises network, or transmits a call request routing to the premises network to the gateway device so that the gateway device sends the incoming call to the mobile terminal. It provides an internal network-based Internet call service method characterized in that to try.

According to the present invention, the members of the company can be contacted via the mobile terminal of their own regardless of their work location, as well as outside the company's work place, and also at the time of external business contact There is an effect that free internet calls are made through the Internet.

Accordingly, as long as each company member owns his mobile terminal, he / she can be contacted at any time and anywhere regardless of the location of his or her own terminal, that is, his work location, thereby expanding the work radius of each corporate member. It is also possible to drastically improve work delays and work inefficiencies caused by disconnected business calls.

In addition, all of these calls are made using a free Internet connection based on the premises network, so there is no burden of communication costs for the enterprise, thereby enabling a high-efficiency work environment at low cost.

In particular, with the introduction of a concept such as 'mobile office' in recent times, a new form of work that is not bound to the determined work place will continue to emerge one of the advantages of the present invention can be further highlighted.

In addition, since all the control of business communication inside and outside the enterprise is performed by the internal network switching system that operates the internal network, the external exposure to the communication contents is proposed, and the communication details according to the business communication are aggregated. It also has the additional effect of making it possible.

1 schematically illustrates a communication system to which the present invention is applied.

2 is a block diagram showing a gateway device according to the present invention;

Figure 3 is a block diagram showing an internal network switching apparatus according to the present invention.

4 is an overall flowchart of an internet call service method according to the present invention;

5 is a flowchart illustrating an example of a terminal registration process of a mobile terminal according to the present invention;

6 is a view for explaining a process of setting location registration target access information according to an embodiment of the present invention.

7 is a flowchart illustrating another example of a terminal registration process of a mobile terminal according to the present invention;

8 is a flowchart illustrating a terminal registration process of a gateway device according to the present invention.

9 is a flowchart illustrating an incoming call processing process of the premises network switching system according to the present invention.

10 is a flowchart illustrating a process of processing an internal network incoming call routing request of a gateway device according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the operating principle of the preferred embodiment of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In the present invention, in the company that the internal network is installed and operated for the business call between the members of the company to allow the members in the company to contact the business through the mobile terminal that he owns in the company as well as outside the workplace, In addition, there is a characteristic that free internet calls are made through the Internet when contacting outside work.

Therefore, corporate members can receive their business contacts anytime, anywhere through their mobile terminals, even if they are not staying in the office with their own landline telephone (ie, their work location). All these calls are made with a free Internet connection based on the premises network, so there is no burden of communication costs for the enterprise, which makes it possible to establish a highly efficient work environment at low cost.

In particular, in the situation where a new form of work that is not bound to a determined place of work is introduced one after another by the introduction of a concept such as 'mobile office', the features of the present invention may be further highlighted.

In addition, since all the control of business communication inside and outside the enterprise is performed by the internal network switching system that operates the internal network, the external exposure to the communication contents is proposed, and the communication details according to the business communication are aggregated. It also has the feature that it becomes possible.

First, FIG. 1 schematically illustrates a communication system to which the present invention is applied.

Referring to FIG. 1, a communication system to which the present invention is applied is carried by a person and connected to an internet network through a wireless communication or a wired communication, through the mobile terminal 10 and the internet network. Gateway device 30 connected to the external Internet network and the premises Internet network (hereinafter referred to as `` premises network '') to be described later, the premises network is connected to the gateway device 30 and composed of a plurality of premises terminals 50 It is configured to include a premises network exchange device 40 for operating the premises network based Internet call service.

Overall, the present invention continuously updates its current location by registering its location whenever the mobile terminals 10 located in the premises network or located outside the premises network are connected to the wireless relay device. The gateway device 30 and the premises network switching device 40 which register with the network switching device 40 and manage the current location and connection path of each mobile terminal 10 are connected to the premises terminal 50 in the premises network. When the incoming call to the premises terminal 50, as well as the incoming connection through the gateway device 30 to the mobile terminal 10 corresponding to the premises terminal 50 is characterized in that the connection is made.

Through this, free calls using the Internet can be made anytime and anywhere among the members of the company operating the internal network, and even when making a call, the internal network resources of the company are used as they are. It is characterized by being able to maintain.

In the present invention, such a user can use the premises terminal 50 or the mobile terminal 10 within the premises network and make free calls with other members through the premises network, and when the user is outside the premises network, his mobile terminal. (10) allows free calls to other members and the network.

First, the mobile terminal 10 is preferably an Internet device capable of connecting to the Internet. That is, as shown in FIG. 1, the mobile terminal 10 may be a mobile communication terminal connected to an internet network through WCDMA (Wideband Code Division Multiple Access), and provides a Wi-Fi access point (AP). It may be a mobile communication terminal connected to the Internet network, a PC, a laptop, a netbook, a tablet PC, and the like directly connected to the Internet network, and may be a VoIP-based terminal.

The mobile terminal 10 basically has a user interface function for inputting a user command using a keypad, a communication function for transmitting and receiving data by connecting to a network, and a screen view for displaying information as text or an image to a user. Function and the like.

First, the mobile terminal 10 stores and manages location registration target access information in order to register its location. Such a location registration target may be the gateway device 30 and the premises network exchange device 40.

Location registration of the mobile terminal 10 is possible in two ways described below.

In the first of the location registration method of the mobile terminal 10, referring to FIG. 6, the mobile terminal 10 uses the IP information of the gateway device 30 and the local area network switching device 40 as connection information for registration. Will be saved. At this time, the gateway device 30 or the premises network switching device 40 is managed as the first target and the second target, respectively, and are sequentially set according to the work type of the user having the mobile terminal 10.

For example, a user who views most of the business in the enterprise sets IP information of the premises network switching device 40 as a first target and sets IP information of the gateway device 30 as a second target. . Because such users spend most of their time in the enterprise, it is advantageous to first register the terminal in the premises network switching device (40). In this case, the premises network switching device 40 connects the call to the mobile terminal 10 of the user directly through the terminal registration information when the call is connected.

As another example, the user who views most of the work outside the enterprise sets the gateway device 30 as the first target and sets the IP information of the premises network switching device 40 as the second target. Because such users spend most of their time outside the enterprise, it is advantageous to first register the terminal to the gateway device (30). In this case, the gateway device 30 transmits the terminal registration information from the mobile terminal 10 to the premises network switching device 40, and the premises network switching device 40 sends the gateway device 30 when the call is connected. Through the call is connected to the mobile terminal 10 of the user.

In the second of the location registration method of the mobile terminal 10, the mobile terminal 10 is to store and manage the IP band information that can be assigned when accessing the internal network operated by the internal network switching device (40). Hereinafter, the IP band information stored and managed by the mobile terminal 10 will be described as the premises network access IP band.

Accordingly, the mobile terminal 10 may access the wireless relay device and compare the IP address assigned from the connected wireless relay device with the IP network of the premises network to determine whether the mobile terminal 10 is located in or outside the company. .

That is, when the allocated IP address is included in the premises network access IP band, the mobile terminal 10 determines its current location as the inside of the enterprise, and if the allocated IP address is not included in the premises network access IP band, Will determine the current position of the company outside the company.

In this case, when determining the current location of the mobile terminal 10 inside the company, the mobile terminal 10 accesses the premises network switching device 40 through location registration access information and performs terminal registration. If it is determined that the outside the company is connected to the gateway device 30 to perform the terminal registration.

On the other hand, when registering the terminal, the mobile terminal 10 transmits the registration information to the premises network switching device 40 or the gateway device (30). In this case, the registration information may include the terminal information including the assigned Internet access IP address, port information, MAC address, mobile phone number, ID and password. In this case, the ID may be a phone number of the premises terminal 50 matching the mobile terminal 10.

Accordingly, the mobile terminal 10 determines its current location every time the Internet is connected and performs location registration accordingly, so that the gateway device 30 and the local area network switching device 40 can connect the incoming call to themselves. You will continue to register at. At this time, the mobile terminal 10 generates registration information and transmits the registration information to the local area network switching device 40 or the gateway device 30 whenever the assigned IP address is changed or the connected wireless relay device is changed. Done.

On the other hand, the gateway device 30 is located between the heterogeneous network to perform the function to interwork so that the subsequent network call can be processed by the mobile terminal (10). That is, the gateway device 30 stores the terminal information for the mobile terminal 10 that can use the campus network call, and in the premises to the mobile terminal 10 in response to the communication call request of the premises network switching device 40 Attempt a communications connection to the network call. In this case, the terminal information may include at least one or more of the phone number of the premises terminal, the premises network access IP address for each mobile terminal, port information and the MAC address of the mobile terminal.

Referring to FIG. 2, the gateway device 30 switches a communication interface 32 that can be connected to the Internet network, a terminal register 35 that processes location registration of the mobile terminal, and connection information for connection with the mobile terminal. A switching unit 36, a communication processing unit 37 for processing a mobile terminal connection of the premises network call, a data storage unit 34 for storing data for an interworking function, and a control unit 31 for controlling the respective components. It is configured by.

In this case, the data storage unit 34 stores and manages the service permission IP list determined in advance as being able to use the premises-based Internet call service according to the present invention.

First, the gateway device 30 registers registration information transmitted from the mobile terminal 10 during the location registration process of the mobile terminal 10 described above.

Looking at this in detail, the gateway device 30 receives the registration information of the mobile terminal 10 transmitted through the communication interface 32, the terminal registration unit 35 is the mobile terminal 10 outside the premises network The registration information transmitted from the data storage unit 34 is stored.

As described above, the registration information transmitted from the mobile terminal 10 may include premises terminal information including an assigned Internet access IP address, port information, MAC address, mobile phone number, ID, and password. In this case, the ID may be a phone number of the premises terminal 50 matching the mobile terminal 10.

The terminal registration unit 35 extracts an external network IP (public IP) address included in the received registration information, and extracts the extracted external network IP address and the service permission IP list stored in the data storage unit 34. In comparison, it is determined whether the mobile terminal 10 that transmits the registration information is a service-allowed terminal, that is, whether it is a mobile terminal in an enterprise determined to be able to use an internet calling service based on the premises network according to the present invention. .

In this process, if it is determined that the service permitting terminal, the gateway device 30 transmits the external network IP address (public IP) and port information included in the registration information through the switching unit 36 to the corresponding mobile terminal 10. It switches to the assigned network IP address (private IP) and port information corresponding to the switch, and transmits the switched network IP address and port information to the network switch 40.

On the contrary, if it is determined that the service is not a service permitting terminal, the gateway device 30 does not perform the above-described switching process and the transfer of the switched home network IP address and port information to the home network switching device. do.

Therefore, the incoming connection request to the mobile terminal for the premises network call requested from the premises network switching device 40 in the future will attempt to connect only to the mobile terminal allowed service.

This is because the gateway device 30 has an external network IP address and port information and a corresponding internal network IP address and port information only through the location registration process of a mobile terminal normally serviced, and thereby reverses the internal network. This is because it is possible to switch the internal network IP address and the port information to the external network IP address and the port information for the communication call request requested together with the internal network IP address and the port information from the switching device 40. That is, when the gateway device 30 receives the communication call request including the IP address and the port information of the mobile terminal 10 from the premises network switching device 40, the gateway device 30 of the registered information registered in the gateway device 30. By switching to the external network IP address and port information is attempted to connect the communication call to the mobile terminal (10).

Here, the gateway device 30 may be a designated number (for example, 9 used for an external call in a conventional campus telephone) or a designated digit (for example, from a mobile terminal 10 outside the premises network to which a communication call is connected). , 3 digits or 4 digits) or more (digits) may not be delivered to the network switch 40. The operation limiting function of the gateway device 30 allows the mobile terminal 10 outside the premises network to be essentially blocked from attempting to make a call to another outside network through the premises network.

On the other hand, the premises network switching device 40 is connected to the gateway device 30, while connected to the premises network consisting of a plurality of premises terminals 50, and processes the premises network call.

Referring to Figure 3, the premises network switching device 40 is a communication interface 42 that can be connected to the premises Internet network, the terminal registration unit 45 for processing the location registration of the mobile terminal, the communication processing unit for processing the premises network incoming request (46), a call processing unit 47 for processing the connection between the premises terminal and the mobile terminal of the internal network call, a data storage unit 48 for storing data necessary for the service, and a control unit 41 for controlling each of the above configuration; It is composed.

The premises network switching device 40 attempts to simultaneously connect to the premises terminal 50 and the matching mobile terminal 10 in response to the premises network incoming call request including the first incoming information. Make sure network connections are established.

Here, the premises network incoming call request includes the first incoming information, and the first incoming information is preferably a telephone number of a corresponding premises terminal or a shortcut number registered for the premises terminal.

Herein, the mobile terminal 10 matched to the premises terminal 50 is a mobile terminal 10 which is set in advance so that an incoming call is attempted with respect to the premises terminal 50 in the premises network, for example, the premises terminal 50. May be a mobile terminal 10 possessed by a user.

The data storage unit 48 stores and manages premises network IP addresses and port information of mobile terminals capable of using the premises network-based internet call service according to the present invention.

The terminal register 45 receives registration information transmitted from the mobile terminal 10 to process location registration of the mobile terminal.

The communication processing unit 46 receives the premises network incoming call request including the first incoming information from the premises network or the external communication network, and requests the premises network incoming call routing request together with the second incoming information including the first incoming information. The gateway device 30 is transmitted.

In this case, the second incoming information may be the first incoming information and the premises network IP address and port information corresponding to the first incoming information.

The call processing unit 47 attempts to ring the premises network to the premises terminal 50 to the premises terminal according to the premises network incoming call request including the first incoming information, and simultaneously receives the premises network to the gateway device 30. The call routing request is sent.

Here, the internal network incoming call routing request includes second incoming information.

In addition, the call processing unit 47, upon receiving the incoming network incoming call response from any one of the premises terminal 50 and the mobile terminal 10 according to the incoming call attempt, sets the communication path to the side where the response was made, and then to the other. In this case, the incoming network call stops.

First, when the communication processing unit 46 of the premises network switching device 40 receives a premises network incoming call request to the premises terminal, the premises network switching device 40 becomes a target through the call processing unit 47. Attempt to make an incoming call to the premises terminal 50 and the matching mobile terminal 10 at the same time so that the incoming connection is made through one of them. At this time, the call processing unit 47 selectively sets the communication path according to the response to the incoming call attempt. The incoming connection is made through the Internet network even when connecting through the premises terminal 50, as well as through the mobile terminal 10 can be made without a separate carrier billing.

In addition, when the incoming call connection is not made to both of the premises network switching device 40, the premises network switching device 40 is connected to the existing mobile communication network and the intended mobile through the mobile communication network. You can also try to switch the incoming call to the terminal 10.

In addition, when the premises network IP address of the mobile terminal 10 is not registered, the premises network switching device 40 of the present invention uses a phone number registered corresponding to the corresponding mobile terminal 10, rather than the premises network. You can also try switching the call to another network.

The premises network exchange apparatus 40 according to the present invention may be provided with a location registration device separately to form a wireless premises network. The location registration device may provide translation information of incoming and outgoing numbers to the gateway device 30 in response to a request from the local area network switching device 40 so that processing of the local area network call may be performed.

Now, with reference to Figures 4 to 10 will be described in the premises network-based Internet call service method according to the present invention.

First, Figure 4 is an overall flowchart of the Internet call service method according to the present invention.

A user possessing the mobile terminal 10 is a member of the enterprise, and the wired premises terminal 50 in the premises network and the mobile terminal 10 which are always possessed are registered in the premises network switching device 40. have.

In the present invention, such a user can use the premises terminal 50 or the mobile terminal 10 within the premises network and make free calls with other members through the premises network, and when the user is outside the premises network, his mobile terminal. (10) allows free calls to other members and the network.

Here, in order to receive such a free call service, each member's mobile terminal 10 stores and manages an IP list accessible to the premises network operated by the premises network switching device 40 as the premises network access IP band.

First, the user may be located in the premises network or outside the premises network with his mobile terminal 10 in possession, the mobile terminal 10 in the premises network or outside the premises network through a wireless relay device, etc. By accessing the network, and transmits the registration information to the premises network switching device 40 or the gateway device 30 to perform its own location registration process (S10).

The location registration process of the mobile terminal 10 in step S10 described above may be set to be performed periodically by the mobile terminal 10 or may be set to be performed every time the mobile terminal 10 accesses the Internet.

According to the location registration of the mobile terminal, the gateway device 30 and the premises network switching device 40 register the registration information transmitted from the mobile terminal 10 to perform a mobile terminal registration process (S20). .

In this case, when the mobile terminal 10 registers the terminal to the gateway device 30 outside the enterprise, the corresponding gateway device 30 corresponds to an external network IP address (public IP) and port information included in the registration information. Switching to the premises network IP address (private IP) and port information assigned corresponding to the mobile terminal 10, and transmits the switched premises network IP address and port information to the premises network switching device (40).

After the location registration of the mobile terminal, the premises network switching device 40 may receive the premises network incoming call request from the premises network or external communication network.

Here, the premises network incoming call request may include first incoming information, and the first incoming information may be a telephone number of the premises terminal 50 or a shortcut number registered for the premises terminal 50.

Therefore, the premises network switching device 40 determines whether an incoming call request to the premises terminal is received (S30), and when an incoming call request to the premises terminal is received, the premises terminal according to the corresponding first incoming information ( Attempt to ring the premises network at 50), and simultaneously transmit the premises network incoming call routing request including the second incoming information to the gateway device 30, whereby the corresponding gateway device 30 receives the corresponding second incoming information. Attempt to reach the premises network to the mobile terminal 10 corresponding to the (S40).

That is, the premises network switching device 40 will attempt to make an incoming call to the premises terminal 50 in the premises network as well as the mobile terminal 10 matched with the premises network upon request.

Thereafter, the premises network switching device 40 waits for a response to the incoming call request through the premises network to the premises terminal 50 and the incoming call request through the internet network to the mobile terminal 10, and from any one of these. It is determined whether a response has been received (S50).

In addition, the premises network switching device 40 is configured to receive the incoming call request through the premises network to the premises terminal 50 and the incoming call request through the internet network to the mobile terminal 10. The communication path is established, and the incoming call attempt is stopped for the side on which the response is not received (S60).

Therefore, according to the present invention, as long as the corporate member possesses his mobile terminal 10, the call can be made anytime and anywhere regardless of the location of his own terminal 50, that is, his work location. The work radius of members can be extended, and work delays or work inefficiencies caused by disconnection of calls between members can be greatly improved.

Now, each process of the above-described Internet call service method according to the present invention will be described in detail through a detailed flowchart.

5 is a flowchart illustrating an example of a terminal registration process of a mobile terminal according to the present invention.

First, referring to FIG. 6, the mobile terminal 10 stores IP information of the gateway device 30 and the premises network switching device 40 as access information of a registration target. At this time, the gateway device 30 or the premises network switching device 40 is managed as the first target and the second target, respectively, and are sequentially set according to the work type of the user having the mobile terminal 10.

For example, a user who views most of the business in the enterprise sets IP information of the premises network switching device 40 as a first target and sets IP information of the gateway device 30 as a second target. . Because such users spend most of their time in the enterprise, it is advantageous to first register the terminal in the premises network switching device (40). In this case, the premises network switching device 40 connects the call directly to the mobile terminal 10 of the corresponding user through the terminal registration information when the call is connected.

As another example, the user who views most of the work outside the enterprise sets the gateway device 30 as the first target and sets the IP information of the premises network switching device 40 as the second target. Because such users spend most of their time outside the enterprise, it is advantageous to first register the terminal to the gateway device (30). In this case, the gateway device 30 transmits the terminal registration information from the mobile terminal 10 to the premises network switching device 40, and the premises network switching device 40 sends the gateway device 30 when the call is connected. Through the call is connected to the mobile terminal 10 of the user.

Therefore, the mobile terminal 10 stores the IP information of the gateway device 30 and the premises network switching device 40 in the first target and the second target as access information of the registration target according to its own business pattern ( S11a).

Thereafter, the mobile terminal 10 carried by the members of the company is connected to the Internet network through a wireless relay device (S12a).

Herein, the user having the mobile terminal 10 may be located in the premises network or outside the premises network.

The mobile terminal 10 connected to the Internet network attempts to connect to the first target by extracting the access information of the set first target (S13a).

Thereafter, the mobile terminal 10 determines whether the connection to the first target is successful (S14a). If the connection to the first target is successful, the mobile terminal 10 transmits the terminal registration information to the corresponding first target (S17a).

In addition, when the registration of the terminal registration information is allowed, the mobile terminal 10 performs authentication by exchanging a certificate including an encryption key with the first target (S18a). Here, through the certificate exchange process, it is possible to secure the security of the communication contents in the future call connection.

Here, for example, in the terminal registration attempt, if the mobile terminal 10 is outside the premises while the premises network switching device 40 is set as the first target, the mobile attempts to connect through the public IP. Attempt to connect directly to the local area network switching device 40 of the terminal 10 will fail.

As another example, if the mobile terminal 10 is inside the premises with the gateway device 30 set as the first target, the mobile terminal 10 attempts to connect to the gateway device 30 through the private IP. Direct connection attempts will fail.

When the connection attempt to the first target (S14a) fails, the mobile terminal 10 connected to the Internet network attempts to connect to the corresponding second target by extracting the set connection information of the second target (S15a). .

Thereafter, the mobile terminal 10 determines whether the connection to the second target is successful (S16a), and when the connection to the second target is successful, the mobile terminal 10 transmits the terminal registration information to the corresponding second target (S17a).

Therefore, the mobile terminal 10 manages both target access information to increase the connection stability, and by prioritizing and managing the target access information, it is possible to achieve faster and more accurate terminal registration.

Unlike the method described with reference to FIG. 5, in the present invention, the terminal registration of the mobile terminal 10 may be connected to an appropriate target through location recognition of the mobile terminal to register the location. This will be described with reference to FIG. 7.

7 is a flowchart illustrating another example of a terminal registration process of a mobile terminal according to the present invention.

Referring to FIG. 7, the mobile terminal 10 stores IP information of the gateway device 30 and the premises network switching device 40 as access information of a registration target (S11b).

Subsequently, the mobile terminal 10 possessed by a member of the enterprise is connected to the Internet network through a wireless relay device (S12b).

Here, the mobile terminal 10 stores and manages IP band information that can be allocated when accessing the premises network operated by the premises network switching device 40 as the premises network access IP band.

Therefore, the mobile terminal 10 accesses the Internet network, and compares the allocated IP address with the premises network access IP band and analyzes whether the mobile terminal 10 is in or outside the company (S13b).

That is, when the allocated IP address is included in the premises network access IP band, the mobile terminal 10 determines its current location as the inside of the enterprise, and if the allocated IP address is not included in the premises network access IP band, Will determine the current position of the company outside the company.

As a result of the analysis, the mobile terminal 10 determines whether the allocated IP address is included in the internal network access IP band (S14b), and when the allocated IP address is included in the internal network access IP band, the previously stored internal network exchange is performed. The connection information of the device 40 is extracted and attempts to connect to the premises network switching device 40 (S15b).

On the contrary, as a result of the determination in step S14b, when the allocated IP address is not included in the premises network access IP band, the connection information of the previously stored gateway device 30 is extracted and attempted to connect to the corresponding gateway device 30. (S16b).

Thereafter, the mobile terminal 10 transmits the terminal registration information to the premises network switching device 40 or the gateway device 30 according to its current location (S17b).

In addition, the mobile terminal 10 when the registration of the terminal registration information is allowed to perform the authentication by exchanging a certificate containing the encryption key with the local network switching device 40 or the gateway device 30 and terminates the terminal registration process. (S18b). Here, through the certificate exchange process, it is possible to secure the security of the communication contents in the future call connection.

Therefore, the mobile terminal 10 can accurately register the terminal according to its own determination.

Next, the terminal registration process of the gateway device 30 according to the current location registration (when the location outside the premises network) of the above-described mobile terminal 10 will be described in detail with reference to FIG.

8 is a flowchart illustrating a terminal registration process of the gateway device according to the present invention.

First, the gateway device 30 receives the registration information transmitted from the mobile terminal 10 (S210).

The gateway device 30 extracts IP address and port information of the mobile terminal from the received registration information (S220).

Here, the IP address and port information of the mobile terminal included in the registration information are external network IP address (public IP) and port information.

As described above, the gateway device 30 stores and manages the service permission IP list determined in advance as being able to use the internal network-based Internet call service according to the present invention.

Accordingly, the gateway device 30 determines whether the IP address of the mobile terminal extracted from the registration information is included in the service permission IP list (S230).

Of course, if the IP address of the mobile terminal extracted from the registration information is not included in the service permission IP list, the gateway device 30 no longer processes the registration information of the mobile terminal 10.

On the contrary, if the service allowable IP list includes the IP address of the mobile terminal extracted from the registration information, the gateway device 30 displays the IP address (public IP) and port information included in the registration information. It is changed to the premises network IP address (private IP) and port information assigned corresponding to (10) (S240).

That is, the gateway device 30 receiving the registration information switches the external network IP address and port information of the mobile terminal 10 to the internal network IP address and port information.

In addition, the gateway device 30 transmits the changed premises network IP address and port information to the premises network switching device 40 to complete the location registration process of the mobile terminal (S250).

That is, for the mobile terminal 10 located outside the premises network or outside the enterprise, the gateway device 30 registers the location of the mobile terminal 10 in accordance with the Internet connection of the mobile terminal 10. By doing so, the gateway device 30 retains the external network IP address and port information and the premises network IP address and port information of the mobile terminal 10.

Therefore, when the communication call request is received by the gateway device 30 for the mobile terminal 10 located outside the premises network in the premises network switching device 40, the corresponding gateway device 30 is an external network IP address. And only the mobile terminal 10 having the port information, the premises network IP address, and the port information.

Now, the process of processing the incoming network incoming signal of the premises network switching device 40 will be described in detail with reference to FIG. 9.

In the following description, one mobile terminal 10 is matched with the premises terminal 50 will be described as an example.

9 is a flowchart illustrating an incoming call processing process of the premises network switch system according to the present invention.

First, the premises network switching device 40 receives a premises network incoming call request to the premises terminal 50 including the first incoming information from the premises network or an external communication network (S310).

In this case, the first incoming information may be a phone number of the premises terminal or a shortcut number registered in the premises terminal.

First, the premises network switching device 40 is the premises network IP address and port information of the mobile terminal 10 matching the telephone number of the premises terminal 50 included in the first incoming information received with the incoming call request It is determined whether or not it is registered (S320).

As a result of the determination in step S320, when the premises network IP address and port information of the matched mobile terminal 10 is registered with respect to the premises terminal 50 for which an incoming call is requested, the premises network switching device 40 is an premises terminal. The second incoming information is transmitted to the gateway device 30 together with the attempt to make the internal network incoming call to 50, and the internal network incoming call routing request is transmitted (S330).

In this case, the second incoming information may be the first incoming information and the premises network IP address and port information corresponding to the first incoming information.

Through this process, the incoming call request is attempted at the same time to the mobile terminal 10 located in the premises network or outside the premises network as well as the premises terminal 50 fixedly located in the premises network.

Thereafter, the gateway device 30 waits for a response to both sides of the incoming call attempt, and determines whether the incoming call response has been received (S340).

That is, the incoming call response may be first received at the premises terminal 50, or alternatively, may be first received at the mobile terminal 10. This means that if the user who is the response target is located at the work location in the enterprise, he / she receives a call through the premises terminal 50 or the mobile terminal 10 that is comfortable to receive the call. This is because the user receives the call through his mobile terminal 10.

Therefore, the gateway device 30 sets the communication path for the incoming call by using the first side to which the answer to the incoming call is made as the call connection target terminal, and attempts the incoming call to the side where the answer to the incoming call is not made. It will be stopped (S370).

Therefore, members in the company can make a phone call anytime, anywhere through their preferred means of communication, and thus the scope of corporate activities can be extended without limit to the means of contact. Will be improved.

On the other hand, as a result of the determination in step S320, it may occur that the network IP address and port information of the matching mobile terminal 10 is not registered for the incoming call request terminal 50.

At this time, the gateway device 30 determines whether the phone number (mobile communication phone number) for the mobile terminal 10 is registered (S350), and the phone number for the mobile terminal 10 is registered. If there is, using the phone number of the mobile terminal may try to switch the incoming call to the mobile terminal 10 through a separate external communication network (S360). In this case, of course, a separate communication charge may be required.

In addition, as a result of the determination in step S340, when there is no response to both sides of the incoming call attempt, the gateway device 30 also uses the mobile terminal through a separate external communication network using a phone number for the corresponding mobile terminal ( You can try by switching the incoming call to 10). Of course, even in this case, a separate communication charge may be required.

On the other hand, the process of processing the internal network incoming call routing request of the gateway device 30 will be described in detail with reference to FIG.

10 is a flowchart illustrating a process of processing an internal network incoming call routing request by a gateway device according to the present invention.

First, the gateway device 30 receives the premises network incoming signal routing request including the second incoming information from the premises network switching device 40 (S410).

The gateway device 30 determines whether registration information of the mobile terminal corresponding to the received second incoming information is registered (S420).

In this case, the second incoming information may be the first incoming information and the premises network IP address and port information corresponding to the first incoming information.

Therefore, since the gateway device 30 holds the external network IP address and port information and the premises network IP address and port information of each mobile terminal 10 which are registered in the previous location registration process, whether the registration information is registered or not. Can be judged.

As a result of the determination in step S420, when the second incoming information about the mobile terminal in which the registration information is registered is received, the gateway device 30 uses the pre-registered registration information in the premises included in the second incoming information. The network IP address (private IP) and port information is changed to the external network IP address (public IP) and port information (S430).

In addition, the gateway device 30 attempts an incoming call to the premises network to the mobile terminal 10 to be connected using the switched external network IP address and port information (S440).

According to the incoming call attempt of the gateway device 30, the mobile terminal 10 determines whether the call is received by a user's operation.

Since the incoming call attempt and the call connection to the mobile terminal 10 through the gateway device 30 are not the incoming call attempt and the call connection through the existing mobile communication network, the incoming call attempt and the call connection through the Internet network are described above. As is the case, no currency charges are imposed.

Thereafter, the gateway device 30 determines whether an incoming call response of the mobile terminal 10 is received according to the incoming call attempt (S450), and when the incoming call response is received from the mobile terminal 10, the corresponding mobile terminal. The incoming call response information is transmitted to the premises network switching device 40 (S460).

Thereafter, the gateway device 30 waits for a communication path connection request from the corresponding local area network switching device 40, and determines whether a communication path connection request signal has been received (S470).

Receiving the communication path connection request signal means that the user has selected the mobile terminal 10 as a means for receiving a call in a situation where simultaneous calls to the premises terminal 50 and the mobile terminal 10 are attempted.

As a result of the determination in step S470, when the communication path connection request is received from the internal network switching device 40, the gateway device 30 stores the external network IP address and port information of the connected mobile terminal 10 and the premises. The communication path is set through the network IP address and port information, so that the communication connection of the incoming network call is made (S480).

On the contrary, when the call connection stop request is not received from the premises network switching device 40 and the incoming call interruption request is received, the gateway device 30 stops the premises network incoming call attempt to the corresponding mobile terminal 10. (S490).

In addition, the gateway device 30 stops the premises network incoming call attempt to the mobile terminal 10 even when an incoming call stop request is received during the incoming call attempt (S455). The reception of the request for interrupting the internal network is because the user has selected the internal terminal 50 as a means for receiving a call in a situation where simultaneous calls to the internal terminal 50 and the mobile terminal 10 are attempted. .

Meanwhile, the method for processing communication calls between heterogeneous communication networks according to the present invention may be implemented in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, an optimal embodiment has been disclosed in the drawings and the specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (19)

A gateway device configured to receive and register registration information transmitted from a mobile terminal outside the premises network, and to switch and transmit the external network IP address and port information included in the registration information to the premises network IP address and port information; And A premises network exchange device that receives and registers registration information from a mobile terminal in the premises network and registers premises network IP address and port information transmitted from the gateway device; Including; The premises network switching device attempts an incoming call to the mobile terminal through the premises network according to the premises network incoming call request to the premises terminal, or sends the premises network incoming call routing request to the gateway device to the gateway device to the mobile terminal. An internal network-based internet calling service system, characterized by attempting to make a call. The method of claim 1, The mobile terminal stores the IP information of the gateway device and the local area network switching device as the access information of the registration target, An on-premises network-based internet call service system, characterized in that for transmitting registration information to the gateway device or the local area network switching device according to the priority set in the Internet connection. The method of claim 1, The mobile terminal stores the premises network access IP band that can be allocated when accessing the premises network, An internal network-based internet call service system, characterized in that it is determined whether a corresponding mobile terminal is located in an internal network by checking whether an allocated IP address is included in the internal network access IP band. The method of claim 3, wherein The mobile terminal transmits registration information to the premises network exchange device when the current location is determined to be inside the premises network, and transmits registration information to the gateway device when the current location is determined to be outside the premises network. Call service system. The method of claim 1, The gateway device stores a service permission IP list, extracts an external network IP address included in the registration information transmitted from the mobile terminal, and transmits the registration information by comparing the extracted IP address with the service permission IP list. An on-premises network-based internet call service system, characterized in that it is determined whether a mobile terminal is a service permitted terminal. The method of claim 5, The gateway device converts the external network IP address and port information included in the registration information only into the network IP address and port information and transmits them to the local network switching device for registration. Call service system. The method of claim 1, The internal network switching device transmits the internal network incoming call routing request including the second incoming information to the gateway device according to the internal network incoming call request including the first incoming information. Service system. The method of claim 7, wherein The first incoming information includes a phone number of the premises terminal or a shortcut number registered for the premises terminal, The second incoming information includes the premises network IP address and port information corresponding to the first incoming information and the first incoming information. The method of claim 8, The gateway device receives the premises network incoming call routing request including the second incoming information, switches the premises network IP address and port information included in the second incoming information into the external network IP address and port information, and premises the mobile terminal with the mobile terminal. Internet call service system based on the internal network, characterized in that for attempting the incoming call by routing the incoming call. The method of claim 1, The premises network switching apparatus sets a communication path for an incoming call to a side where an incoming call response is made according to an incoming call attempt for the premises terminal and the mobile terminal, and stops the incoming call attempt for the side where the incoming call response is not made. Internet call service system based on the premises network, characterized in that. The method of claim 1, If there is no incoming call response according to the incoming call attempt for the mobile terminal, the internal network switching device switches the incoming call to the mobile terminal through an external communication network and retries. The mobile network located in the premises network or located outside the premises network registers its location to the gateway device and the premises network switch when the Internet is connected, and the premises network exchange device that manages the registration information of each mobile terminal When the incoming call to the premises terminal, the incoming call to the mobile terminal through the premises network, or by sending the premises network incoming call routing request to the gateway device characterized in that the gateway device attempts the incoming call to the mobile terminal Network based internet call service method. The method of claim 12, (a) a mobile terminal accessing the Internet and transmitting registration information to a local area network switching device or a gateway device to perform terminal registration; (b) the gateway device receiving and registering the registration information, switching the external network IP address and port information included in the registration information to the local network IP address and port information, and transmitting the registration information to the local network switching device; (c) receiving, at the premises network switch, a premises network incoming call request to the premises terminal; (d) attempting an incoming call to the mobile terminal through the premises network according to the premises network incoming call request, or transmitting the premises network incoming call routing request to the gateway device; And (e) establishing, by the internal network switching device, a communication path according to an incoming call response; Internet call service method based on the premises network comprising a. The method of claim 13, In step (a), (a-1) setting, by the mobile terminal, access information of the gateway device and the local area network switching device as priority information for registration; (a-2) the mobile terminal accessing the Internet; (a-3) the mobile terminal transmitting registration information to the gateway device or the local area network switching device according to the set priority; (a-4) the mobile terminal transmitting registration information; And (a-5) exchanging a certificate by the mobile terminal; Internet call service method based on the premises network comprising a. The method of claim 13, In step (a), (a-6) storing, by the mobile terminal, connection information of the gateway device and the local area network switching device as connection information of a registration object; (a-7) the mobile terminal accessing the internet; (a-8) determining, by the mobile terminal, whether the mobile terminal is located inside the premises network by checking whether the IP address allocated to the Internet access is included in the premises network access IP band; (a-9) the mobile terminal transmitting registration information to the premises network switching device when the current location is determined to be inside the premises network, and transmitting registration information to a gateway device when the current location is determined to be outside the premises network; (a-10) exchanging a certificate by the mobile terminal; Internet call service method based on the premises network comprising a. The method of claim 13, In step (b), (b-1) receiving, by the gateway device, registration information transmitted from a mobile terminal; (b-2) extracting, by the gateway device, external network IP address and port information of the mobile terminal connected to the network from the received registration information; (b-3) the gateway device determining whether the external network IP address of the mobile terminal extracted from the registration information is included in the pre-stored service permission IP list; And (b-4) When the gateway device includes the external network IP address of the mobile terminal extracted from the registration information in the service permission IP list, the external network IP address and port information included in the registration information correspond to the corresponding mobile terminal. Changing to the assigned premises IP address and port information and transmitting the changed premises network IP address and port information to the premises network switching device; Internet network service method based on the premises network comprising a. The method of claim 13, The premises network incoming call request received by the premises network switching device in step (c) includes first incoming information, and the premises network incoming signal routing request transmitted by the premises network switching device to the gateway device in step (d). Contains the second incoming information, The first incoming information includes a phone number of the premises terminal or a shortcut number registered for the premises terminal, The second incoming information includes the premises network IP address and port information corresponding to the first incoming information and the first incoming information. The method of claim 13, After step (d), Receiving, by the gateway device, an internal network incoming call routing request including second incoming information from the internal network switching device; If the registration information of the mobile terminal corresponding to the received second incoming information is registered by the gateway device, changing the internal network IP address and port information included in the second incoming information into an external network IP address and port information; And The gateway device attempting to ring the premises network to the mobile terminal to which the connection is made by using the changed external network IP address and port information; An internal network-based internet call service method further comprising a. The method of claim 13, In the step (e), If there is no incoming call response according to the incoming call attempt for the mobile terminal, the internal network switching device switches the incoming call to the mobile terminal through an external communication network and retries.

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