CN102438084B - Method and system for implementing telephone conference - Google Patents

Abstract

The present invention provides a method and system for implementing a conference call. The method includes: WS sends call request information according to a conference creation request input by the operator through the operator's WEB interface according to the request of the operator to communicate with the UE; the AS receives the call After requesting a message, apply for conference resources and create a conference call. The present invention also provides a WS and AS. By utilizing the present invention, the problem that the existing caller must create a conference through a WEB interface or a special terminal can be solved, and it is easy to realize.

Description

Method and system for realizing teleconference

technical field

The invention relates to the field of intelligent network communication, in particular to a method and system for realizing a conference call.

Background technique

The Central Exchange (Centrex) service is to divide some users into a basic user group on the exchange of the telephone company or the telecommunication company, and provide the user group with various functions of the user-specific exchange, and at the same time provide some special service function. However, there is no actual dedicated exchange in this user group. All the hardware required for the Centrex service is in the exchange of the telephone exchange or the telecommunications company, and the user's internal and external exchanges are concentrated in the exchange of the telephone exchange or the telecommunications company. Therefore Centrex is also known as a virtual subscriber switch. Centrex service networking is flexible, and capacity can be easily increased or decreased. It is widely used in group users such as factories and mines, colleges, government agencies, group companies, hotels, hospitals, financial institutions, etc.

The number corresponding to the switchboard of the group users using the Centrex service is called the main number (MainNumber), also called the switchboard number. The Centrex service includes extension service and switchboard service. The switchboard service is also called attendant console service, including the call-in process and the call-out process. Incoming call process, that is, users inside and outside the group dial the switchboard number, trigger the switchboard service, and the service selects one of the operators to call according to a certain strategy. After the operator answers, the service bridges the call between the calling user and the operator. Outgoing process, that is, when the operator calls out, the switchboard service is triggered. The service calls the operator first, and then calls the called user after the operator picks up the phone. The caller ID of the called user is the switchboard number. The user bridges the call.

Users in the group can be traditional users such as Public Switched Telephone Network (PSTN), Global System for Mobile Communications (GSM) system and Code Division Multiple Access (CDMA) users, also It can be users of new types of users such as soft terminals, integrated access devices (Integrated Access Device, IAD), Internet Protocol (Internet Protocol, IP) phones and video terminals.

Referring to Fig. 1, the existing system for realizing the Centrex service includes: operator WEB interface server, switchboard service WEB server (Web Server, WS), Centrex service application server (Application Server, AS), media resource server (Media Resource Server, MRS) and user equipment (User Equipment, UE). The system has the function of click-to-dial (Click To Dial, CTD) service. Figure 1 hides the topological structure of the IP Multimedia Subsystem (IMS) and the Next Generation Network (NGN). In actual implementation, the AS, MRS, and UE are connected to the IMS or NGN .

The functions of each part of the system for realizing the Centrex service are introduced below.

The operator WEB interface server is a device used to provide operator interface services for initiating calls or performing call control, specifically, it can be a personal computer (Personal Computer, PC), a third-generation mobile communication technology (3rd-Generation, 3G) terminal wait.

WS is used to provide switchboard business call Hypertext Transfer Protocol (HyperText Transfer Protocol, HTTP) service functions, such as: user login, call number filling, call control and information display interface and other functions.

The AS is used to provide the service functions of the bottom switchboard, such as: call control, status reporting, bill generation and other functions.

The MRS is used to provide voice media, specifically a media server (Media Server, MS).

The UE is used for calls of users in the group, and may specifically be a fixed phone, a mobile phone, or a video terminal.

The protocols used between the various parts of the system for realizing the Centrex service are introduced below.

The HTTP service call between the operator WEB interface server and WS uses HTTP.

The communication between WS and AS is between servers, using the application layer protocol. The application layer protocol can use Extensible Markup Language (XML) according to specific needs. If the application layer protocol is not used, the transmission control protocol can be customized ( Transmission Control Protocol, TCP) message body.

Calls are made between AS and MRS or UE through the media negotiation protocol. Session Initiation Protocol (SIP) is used between AS and UE through IMS or NGN to communicate with each other. SIP or media gateway control protocol is usually used between AS and MRS (Media Gateway ControlProtocol, MGCP), depending on the protocol type supported by MRS.

The UE and the MRS conduct media negotiation according to the codec format of the media packet during the call, the transceiver port, the bandwidth transmission rate, etc., and use media protocols such as H.248 to complete the transmission of the media stream.

For the implementation of the switchboard incoming call service, refer to FIG. 2 in detail. FIG. 2 shows the flow of the user calling the switchboard number and finally talking with the operator. In the prior art, the user calls the switchboard number, and after talking with the operator, the general request is to consult relevant information, or hope that the operator will transfer the call to another user in the group. The way the operator implements call transfer for the calling user can be For blind transfer, inquiry transfer, etc. However, in the prior art, the switchboard service cannot realize the calling user's request for creating a conference, that is, a multi-person call.

In the prior art, the user himself as the creator needs to create a conference through the WEB interface, see Figure 3 for the specific process; or use a special terminal to cooperate with the business implementation, see Figure 4 for the specific process.

Traditional teleconferencing needs to interact with users through the WEB interface, or requires the moderator terminal to be a special terminal - PC client. Figure 3 shows the traditional implementation process of teleconference based on WEB interface, and Figure 4 shows the traditional implementation process of teleconferencing based on special terminal.

As can be seen from the process shown in Figure 3, if the traditional method of implementing conference calls uses a WEB interface, users need to log in to the WEB interface, and more WEB servers for controlling conference calls need to be deployed on the networking. It can be seen from the process shown in Figure 4 that if a special terminal is used in the traditional way of implementing a conference call, the terminal needs to support advanced conference-related buttons and advanced messages such as refer, notify, subscribe, etc., and these are under the IMS network. Specially-made terminals, terminals in other networks on the live network do not support these capabilities.

Contents of the invention

In view of this, the main purpose of the present invention is to provide a method and system for realizing a conference call, which can solve the problem that the existing caller must create a conference through a WEB interface or a special terminal.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A method for implementing a conference call, the method comprising:

WS sends call request information according to the creation conference request input by the operator through the operator WEB interface according to the request of the UE talking with itself;

After receiving the call request message, the AS applies for conference resources and creates a conference call.

Further, the method also includes:

The UE establishes a conversation with the operator by calling the switchboard number.

Wherein, the call request information sent by the WS is:

The WS sends call request information carrying the phone number information of the UE and the phone number information of the conference members, requesting to create a conference.

Wherein, the AS applies for conference resources, and creates a conference call as:

AS applies for conference resources from the media resource server MRS, calls conference members, and controls the listening and speaking rights of conference members;

When there are conference members who have not joined the conference, call again.

A teleconference implementation system, including UE, MRS, said system also includes: operator WEB interface server, WS and AS; wherein,

The operator WEB interface server is used to provide a WEB interface operated by the operator;

The WS is configured to send call request information according to a conference creation request input by the operator through the operator WEB interface server according to the request of the operator talking to the UE;

The AS is configured to, after receiving the call request message, apply for conference resources and create a conference call.

Wherein, the UE is specifically configured to establish a conversation with an operator by calling the switchboard number.

Wherein, the WS is specifically configured to send the call request information carrying the phone number information of the UE and the phone number information of the conference members, and request to create a conference.

Wherein, the AS is specifically used to apply for conference resources from the MRS, call conference members, and control the listening and speaking rights of conference members; when there are conference members who have not joined the conference, call again.

A switchboard service WEB server (WS), used for sending call request information according to a conference creation request input by an operator through the operator's WEB interface server according to the request of the UE talking with itself.

Wherein, the WS further includes a request transmission module and a conference control module; where,

The request transmission module is used to send out the conference creation request input by the operator according to the instruction of the UE talking with itself;

The conference control module is configured to control the sending of the conference creation request of the operator WEB interface server according to the number of conference members included in the conference creation request input by the operator.

Further, the WS also includes: a display control module, configured to control the operator's WEB interface server to display the received message in real time.

A business application server (AS), used for applying for conference resources and creating a conference call after receiving a call request message including a conference creation request.

Wherein, the AS further includes: a conference operation module and a sound mixing control module; where,

The conference operation module is configured to apply for conference resources from the MRS after receiving a conference creation request from the WS, call conference members, add the calling user and conference members to the conference, and send a mixing instruction;

The audio mixing control module is configured to control the MRS's listening and speaking authority for the calling user and conference members according to the received audio mixing instruction and preset information.

Further, the AS also includes: a request response module and a status reporting module; wherein,

The request response module is configured to report to the WS in real time the response of the request message sent from the WS;

The status reporting module is configured to report the received call status information of the UE to the WS in real time.

The beneficial effects of the present invention are as follows:

(1) Based on the traditional switchboard incoming call service, the calling user can be transferred to the destination user who wants to call, realizing multi-person calling;

(2) When the calling user is a user in the group, it is mainly used for holding meetings within the enterprise, which can reduce the occupation of physical conference room resources and reduce the corresponding travel expenses;

(3) When the calling user is a user outside the group, such as a customer or a related partner company, after the calling user makes a call, they use other services, such as multi-way calling, etc., and after obtaining the consent of the corresponding conference members, the main Ask users to create meetings and add members to achieve real-time communication and quick response;

(4) The realization of the present invention has nothing to do with the user's own terminal type, and the user terminal can be a terminal under each existing network, and does not need the user to visit the WEB interface to realize the conference creation;

(5) You only need to dial the switchboard number and tell the operator to create a conference, and you can hold a conference anytime and anywhere; it can be further applied to the operator's attendant console system, and the users under the network dial the switchboard number and tell the operator to create a conference request, you can easily implement multi-person calls.

Description of drawings

FIG. 1 is a schematic structural diagram of an existing system for realizing the Centrex service;

Fig. 2 is a schematic diagram of the implementation flow of the switchboard incoming call service;

FIG. 3 is a schematic flow diagram of a conventional teleconferencing implementation through a WEB interface;

FIG. 4 is a schematic flow diagram of a conventional teleconferencing implementation through a special terminal;

FIG. 5 is a schematic diagram of the implementation process of the implementation method of the teleconferencing of the present invention;

FIG. 6 is a schematic diagram of an implementation flow of a specific embodiment of a method for implementing a conference call in the present invention;

Fig. 7 is a structural schematic diagram of WS of the present invention;

Fig. 8 is a schematic structural diagram of the AS of the present invention.

Detailed ways

The basic idea of the present invention is: WS sends call request information according to the creation conference request input by the operator through the operator's WEB interface according to the request of the UE talking with itself; after receiving the call request message, the AS applies for conference resources and creates a conference call .

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

Fig. 5 shows the implementation process of the implementation method of the conference call of the present invention. As shown in Fig. 5, the method includes the following steps:

Step 501, the WS sends call request information according to the conference creation request input by the operator through the operator WEB interface according to the request of the UE talking with itself;

Wherein, before this step, the method further includes: the UE establishes a conversation with the operator by calling the switchboard number.

The sending of the call request information by the WS is specifically: the WS sends the call request information carrying the phone number information of the UE and the phone number information of the conference members, and requests to create a conference.

Step 502, after receiving the call request message, the AS applies for conference resources and creates a conference call;

Wherein, the AS applies for conference resources and creates a conference call specifically as follows: the AS applies for conference resources from the MRS, calls conference members, and controls the listening and speaking authority of conference members; when there are conference members who are not connected to the conference, call again .

FIG. 6 shows the implementation process of a specific embodiment of the method for implementing a conference call in the present invention. As shown in FIG. 6, the specific embodiment of the UE includes the following steps:

First, UE A establishes a switchboard conversation service with operator H (UE H), wherein, the specific process refers to Figure 2, including the following steps:

Step 201, user A calls the switchboard number by means of UE A and arrives at AS; UE A sends an INVITE request to AS;

Specifically, the request number sent by the UE A is the switchboard number or the console number, and carries its own SDP information; wherein, the SDP information mainly describes the IP address, port number, audio and video capabilities, and encoding format wait.

In step 202, the AS sends an INVITE request to the MRS, carrying A's SDP information. AS wants to play the welcome speech and the queuing prompt tone to A, and applies to the MRS for playing resources.

In step 203, the MRS returns a 200 OK (INVITE) response to the AS, carrying its own SDP information.

In step 204, the AS sends ACK confirmation information to the MRS.

In step 205, the AS returns a 183 Session Process provisional response to the UEA, carrying the SDP information of the MRS.

In step 206, the AS sends an INFO notification request to the MRS, requesting the MRS to play a welcome word and a queuing prompt tone for A.

In step 207, the MRS returns a 200 OK (INFO) response to the AS.

In step 208, the AS sends status report information to the WS: user A is calling.

Step 209, WS sends call request information to AS, and assigns the call to operator H.

Step 210, AS returns a request response message to WS: operator H is being called.

In step 211, the AS sends an INVITE request to UE H of operator H, and the request number is H. AS calls operator H.

Step 212, UE H returns a 180 Ring provisional response to AS. UEH rings.

In step 213, the AS sends a status report message to the WS: operator H rings.

Step 214, AS returns a 180 Ring provisional response to A.

In step 215, the AS sends an INFO notification request to the MRS, requesting the MRS to play a ringback tone for A.

In step 216, the MRS returns a 200 OK (INFO) response to the AS.

Step 217, UE H returns a 200 OK (INVITE) final response to AS, carrying its own SDP information. Operator H clicks on the operator WEB interface to accept the incoming call from UEA.

In step 218, the AS sends a status report message to the WS: the operator H goes off-hook.

In step 219, the AS sends a BYE request to the MRS. AS requests MRS to stop playing the ringback tone to A, and releases the link between AS and MRS.

In step 220, the MRS returns a 200 OK (BYE) response to the AS.

In step 221, the AS sends an UPDATE request to UE A, carrying the SDP information of UE H.

Step 222, UE A returns a 200 OK (UPDATE) response to the AS, carrying its own SDP information.

In step 223, AS sends a 200 OK (INVITE) final response to A.

Step 224, UE A sends an ACK confirmation message to AS.

In step 225, the AS sends an ACK confirmation message to UE H, carrying the SDP information of UE A. So far, the SDP media negotiation between UE A and UE H is completed, and the call state is entered.

When UEA requests UE H to create a conference, it will notify the relevant conference members B1, B2, B3, etc. After receiving the request, operator H will add it on the operator WEB operation interface, and click Create Conference after adding.

Step 601. After receiving the conference creation request input by the operator through the operator's WEB interface according to the UE's call request, the WS sends call request information to the AS, requesting to create a conference, and carrying the phone number information of the UEA and related conference members.

In step 602, the AS returns request response information to the WS: the request is accepted and is being processed.

In step 603, the AS sends a REINVITE request to the UEA. The AS intends to apply for conference resources and add the UEA to the conference.

In step 604, the UEA returns a 200 OK (REINVITE) final response to the AS, carrying its own SDP information.

Step 605, the AS sends an INVITE request to the MRS, carrying UE A's SDP information.

In step 606, the MRS returns a 200 OK (INVITE) final response to the AS, carrying its own SDP information.

Step 607, the AS sends an ACK confirmation message to the MRS.

In step 608, the AS sends an ACK confirmation message to UE A, carrying the SDP information of the MRS.

Step 609, the AS sends an INFO notification request to the MRS. AS requests MRS to mix UE A's audio: control UEA's listening and speaking authority to one or both of listening and speaking.

In step 610, the MRS returns a 200 OK (INFO) response to the AS.

Step 611, AS sends a status report message to WS: UE A joins the conference successfully.

Step 612, AS sends an INVITE request to UE Bi, and the request number is Bi. The AS calls UEB1, UE B2, UE B3 and other relevant conference members at the same time. It should be understood that the relevant conference members here are expressed by the relevant conference members Bi.

Step 613, UE Bi returns a 180 Ring provisional response to AS.

Step 614, AS sends a status report message to WS: UE Bi is ringing.

Step 615, UE Bi returns a 200 OK (INVITE) final response to AS, carrying its own SDP information. The user of UE Bi goes off-hook.

Step 616, AS sends a status report message to WS: the user of UE Bi goes off-hook.

In step 617, the AS sends an INVITE request to the MRS, carrying the SDP information of UE Bi. The AS applies for conference resources from the MRS and intends to add UE Bi to the conference.

In step 618, the MRS returns a 200 OK (INVITE) final response to the AS, carrying its own SDP information.

In step 619, the AS sends an ACK confirmation message to the MRS.

In step 620, the AS sends an ACK confirmation message to UE Bi, carrying the SDP information of the MRS.

In step 621, the AS sends an INFO notification request to the MRS. AS requests MRS to mix UE Bi: control the listening and speaking authority of UE Bi to one or all of listening and speaking.

In step 622, the MRS returns a 200 OK (INFO) response to the AS.

Step 623, the AS sends a status report message to the WS: UE Bi joins the conference successfully. If a member's final response is not off-hook, you can choose to call the member again. Relevant members pick up the phone, and finally realize the conference call.

FIG. 7 shows the structure of the WS in the present invention. As shown in FIG. 7, the WS is used to send call request information according to the conference creation request input by the operator through the operator's WEB interface server according to the call UE's request.

Wherein, the WS further includes a request transmission module and a conference control module; where,

The request transmission module is used to send out the conference creation request input by the operator according to the instruction of the UE talking with itself;

The conference control module is configured to control the sending of the conference creation request of the operator WEB interface server according to the number of conference members included in the conference creation request input by the operator.

Further, the WS also includes: a display control module, configured to control the operator's WEB interface server to display the received message in real time.

FIG. 8 shows the structure of the AS of the present invention. As shown in FIG. 8 , the AS is configured to apply for conference resources and create a conference call after receiving a call request message including a conference creation request.

Wherein, the AS further includes: a conference operation module and a sound mixing control module; where,

The conference operation module is configured to apply for conference resources from the MRS after receiving a conference creation request from the WS, call conference members, add the calling user and conference members to the conference, and send a mixing instruction;

The audio mixing control module is configured to control the MRS's listening and speaking authority for the calling user and conference members according to the received audio mixing instruction and preset information.

Further, the AS also includes: a request response module and a status reporting module; wherein,

The request response module is configured to report to the WS in real time the response of the request message sent from the WS;

The status reporting module is configured to report the received call status information of the UE to the WS in real time.

The present invention also provides a teleconferencing implementation system, including UE, MRS, and also: operator WEB interface server, WS and AS; wherein,

The operator WEB interface server is used to provide a WEB interface operated by the operator;

The WS is configured to send call request information according to a conference creation request input by the operator through the operator WEB interface server according to the request of the operator talking to the UE;

The AS is configured to, after receiving the call request message, apply for conference resources and create a conference call.

Wherein, the UE is specifically configured to establish a conversation with an operator by calling the switchboard number.

Wherein, the WS is specifically configured to send the call request information carrying the phone number information of the UE and the phone number information of the conference members, and request to create a conference.

Wherein, the AS is specifically used to apply for conference resources from the MRS, call conference members, and control the listening and speaking rights of conference members; when there are conference members who have not joined the conference, call again.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention.

Claims (9)

1. A method for implementing a conference call, characterized in that the method comprises: The service application server AS receives the call request information sent by the switchboard service WEB server WS, and the call request information is sent by the WS according to the operator's request to create a conference input through the operator's WEB interface according to the request of the user equipment UE communicating with itself; After receiving the call request information, the AS applies for conference resources and creates a conference call; Wherein, the call request information carries the phone number information of the UE and the phone number information of the conference members; the phone number information of the UE and the phone number information of the conference members are notified by the UE by calling the switchboard number Operator's. 2. The method according to claim 1, wherein the AS applies for conference resources and creates a conference call as: AS applies for conference resources from the media resource server MRS, calls conference members, and controls the listening and speaking rights of conference members; When there are conference members who have not joined the conference, call again. 3. A system for implementing a teleconference, including UE and a media resource server MRS, characterized in that the system also includes: an operator WEB interface server, a switchboard service WEB server WS and a service application server AS; wherein, The operator WEB interface server is used to provide a WEB interface operated by the operator; The WS is configured to send call request information according to a conference creation request input by the operator through the operator WEB interface server according to the request of the operator talking to the UE; The AS is configured to apply for conference resources and create a conference call after receiving the call request message; The UE is configured to establish a conversation with the operator by calling the switchboard number, and notify the operator of its own phone number information and phone number information of relevant conference members. 4 . The system according to claim 3 , wherein the WS is specifically configured to send call request information carrying the telephone number information of the UE and the telephone number information of conference members, and request to create a conference. 5. The system according to claim 4, wherein the AS is specifically used to apply for conference resources from the MRS, call the conference members, and control the listening and speaking authority of the conference members; when there are conference members not connected to the conference , make the call again. 6. A switchboard service WEB server WS, characterized in that, said WS includes: a request transmission module and a conference control module; wherein, The request transmission module is used to send out the conference creation request input by the operator through the operator's WEB interface server according to the request of the UE talking with itself; The conference control module is used to control the issuance of the conference creation request of the operator WEB interface server according to the number of conference members included in the conference creation request input by the operator through the operator WEB interface server, and send the call request information to the service The application server AS; the call request information carries the telephone number information of the UE and the telephone number information of the conference members; the telephone number information of the UE and the telephone number information of the conference members are sent by the UE through the call switchboard Number to notify the operator of establishing a call with the operator. 7. The WS according to claim 6, further comprising: a display control module, configured to control the operator WEB interface server to display the received message in real time. 8. A business application server AS, characterized in that the AS includes: a conference operation module and a sound mixing control module; wherein, The conference operation module is used to apply for conference resources from the MRS after receiving the call request information including the conference creation request, call the conference members, add the calling user and conference members to the conference, and send a mixing instruction; the call The request information is sent to the AS by the WS according to the request of the operator to create a conference input through the operator's WEB interface server according to the request of the UE talking with itself; the call request information carries the phone number information of the UE and the phone numbers of the conference members Information: the UE's phone number information and the conference member's phone number information are notified to the operator by the UE by calling the switchboard number to establish a call with the operator; The audio mixing control module is configured to control the MRS's listening and speaking authority for the calling user and conference members according to the received audio mixing instruction and preset information. 9. The AS according to claim 8, further comprising: a request response module and a status reporting module; wherein, The request response module is configured to report to the WS in real time the response of the request message sent from the WS; The status reporting module is configured to report the received call status information of the UE to the WS in real time.