CN102136918B - Method, device and system for accessing broadcast remotely - Google Patents

Abstract

The embodiment of the present invention discloses a method for remotely accessing broadcasting, which includes: the session server receives a request message carrying broadcast area information sent by a call center, obtains the ID number of the corresponding broadcast terminal according to the broadcast area information, and obtains the ID number of the corresponding broadcast terminal from the simulated multiple In the session initiation protocol sip phone, an idle sip phone is selected to establish a mapping relationship with the broadcast terminal, the number of the idle sip phone is sent to the call center, the call center accepts the call to the sip phone, and the call is sent to the broadcast terminal. Embodiments of the present invention also provide corresponding devices and systems. By adopting the technical solution of the invention, users can use mobile phones, fixed phones, etc. to remotely access the broadcasting system for voice broadcasting.

Description

Method, device and system for remote access broadcasting

technical field

The present invention relates to the field of communication technology, in particular to a method, device and system for remote access broadcasting.

Background technique

Public places such as rural areas, stations, and campuses usually need to use broadcasting systems to speak or play voice programs. A traditional broadcasting system generally includes a sound source device, a control device, and a sound playback device sequentially connected through a transmission line, wherein the sound source device can be an artificial microphone or a broadcast server, the control device can be a broadcast terminal, and the sound playback device can be a stereo or a loudspeaker. The working process of the broadcasting system can be: the broadcasting server plays the voice file, generates voice digital signal and transmits it to the broadcasting terminal, the broadcasting terminal decodes the voice, converts it into an analog signal, amplifies the power of the analog signal, and then outputs it to the audio system through the audio cable Or speakers to play. The working process of the broadcasting system can also be: the artificial microphone as the sound source equipment or the earphone of the radio directly transmits the analog signal to the broadcasting terminal, and the broadcasting terminal amplifies the power of the analog signal, and then outputs it to the audio system or the speaker through the audio cable for further processing. play.

In the broadcasting system of the prior art, the sound source equipment is usually limited to a small range, such as a broadcast booth, so that the announcer must broadcast in the small range. Even if a wireless microphone is used as the sound source device, the announcer must still broadcast within the access range of the wireless microphone signal. It can be seen that the traditional broadcasting system cannot realize remote access to broadcasting, such as accessing broadcasting across counties, cities or even across provinces, nor can it achieve access anytime and anywhere.

The inventor noticed that the call center used by the enterprise can realize the remote access dialogue. A general call center includes: an interconnected computer telephony integration system (Computer Telephony Integration, CTI), an automatic call distribution system (Automatic Call Distribution, ACD) and multiple agent phones registered on the ACD. Among them, CTI also includes Interactive Voice Response (IVR). The call center is connected to the operator's network through a 75-ohm impedance coaxial cable (E1 line), and the enterprise applies to the operator for a number resource, namely an access code, for the call center. The user end dials the access code of the enterprise, and the CTI of the call center plays a prompt tone to the user. If a manual connection is required, the CTI transfers the call to an idle agent phone, and directly connects the user and the agent. One-to-one calls.

The call center in the prior art can realize remote access anytime and anywhere, but it can only realize the communication between one user and one internal personnel, and cannot realize the public broadcasting of one user facing a large crowd.

Contents of the invention

Embodiments of the present invention provide a method, device and system for remotely accessing broadcasting.

A method for remotely accessing a broadcast, comprising:

The session server receives the request message sent by the call center, and the request message carries broadcast area information;

Obtain the ID number of the corresponding broadcast terminal according to the broadcast area information, and select an idle sip phone from a plurality of simulated session initiation protocol sip phones to establish a mapping relationship with the broadcast terminal;

Send the number of the idle sip phone to the call center;

Accept calls from the call center to the sip phone;

and send the call to the broadcast terminal.

A method for remotely accessing a broadcast, comprising:

Obtain the broadcast area information determined by the user;

Send a request message carrying broadcast area information to the session server;

Receive the number of the idle sip phone returned by the session server;

A call is initiated to the sip phone, so that the session server sends the call to the broadcast terminal corresponding to the broadcast area information.

A session server comprising:

a receiving unit, configured to receive a request message sent by the call center, where the request message carries broadcast area information;

The mapping unit is used to obtain the ID number of the corresponding broadcast terminal according to the broadcast area information, and select an idle sip phone from a plurality of simulated session initiation protocol sip phones to establish a mapping relationship with the broadcast terminal;

A sending unit, configured to send the number of the idle sip phone to the call center;

The call processing unit is used to accept the call from the call center to the sip phone and send the call to the broadcast terminal.

A call center comprising:

an acquiring unit, configured to acquire the broadcast area information determined by the user;

a sending unit, configured to send a request message carrying the broadcast area information to the session server;

The receiving unit is used to receive the number of the idle sip phone returned by the session server;

The calling unit is used for initiating a call to the sip phone, so that the session server sends the call to the broadcast terminal corresponding to the broadcast area information.

The embodiment of the present invention uses a session server to connect the call center and the broadcasting system, and the session server transfers the call from the user terminal to the call center to the broadcasting system for broadcasting, so that the user can use mobile phones, fixed phones and other remote Access to the broadcasting system for voice broadcasting.

Description of drawings

FIG. 1 is a schematic diagram of a system for remotely accessing broadcasting according to an embodiment of the present invention;

Fig. 2 is a partial structural schematic diagram of the system shown in Fig. 1;

FIG. 3 is a schematic flowchart of a method for remotely accessing broadcasting according to an embodiment of the present invention;

FIG. 4 is a schematic flowchart of a method for remotely accessing broadcasting according to Embodiment 2 of the present invention;

Fig. 5 is a schematic diagram of a session server according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a call center according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart of a method in an embodiment of the present invention in a specific application scenario.

Detailed ways

An embodiment of the present invention provides a method for remotely accessing broadcasting. The method uses a session server to connect the call center and the broadcasting system, and the session server transfers the call from the user terminal to the call center to the broadcasting system for broadcasting. For the call center, the conversation server is equivalent to an agent phone; for the broadcasting system, it is equivalent to a sound source device, so that users can use mobile phones, fixed phones, etc. to remotely access the broadcasting system for voice broadcast. Embodiments of the present invention also provide corresponding devices and systems. Each will be described in detail below.

Embodiment one

This embodiment provides a method for remotely accessing broadcasting.

Please refer to FIG. 1 , the equipment involved in this method includes: a call center 101 connected to the operator's network, a session server 102 connected to the call center 101 , and a broadcast system 103 connected to the session server. Wherein, the call center 101 includes a computer telephony integrated CTI system and an automatic call distribution ACD system. The broadcast system 103 includes more than one broadcast server connected to the session server 102. Each broadcast server is connected to more than one broadcast terminal, and each broadcast terminal is connected to a Sound playback equipment. The computer telephony integrated CTI system can further include an interactive voice response system IVR. In a preferred embodiment, it also relates to a short message access gateway and a text-to-speech synthesis TTS system.

Please refer to FIG. 2 , the session server 102 simulates multiple session initiation protocol sip phones registered on the ACD. SIP is an application layer signaling control protocol for creating, modifying and releasing sessions of one or more participants. For the call center, the sip phone is equivalent to the agent phone; for the broadcasting system, it is equivalent to the audio source device. The call center and broadcasting system are connected through the sip phone. Optionally, the process that the session server 102 simulates a plurality of session initiation protocol sip phones to register on the ACD is as follows: first, the session server simulates a plurality of session initiation protocol sip phones, and sends a registration request message carrying the sip phone information to the caller The ACD in the center; the ACD approves the registration after receiving the registration request message, and returns a registration success response message; the session server receives the registration success response message, that is, the registration is successful.

In this embodiment, the role of the session server at least includes: 1. Simulating more than one Session Initiation Protocol (Session Initiation Protocol, sip) phone registered in the call center, for the call center, a sip phone is equivalent to an agent phone; 2. , Send the message that the call center and the broadcasting system send to each other.

Please refer to FIG. 3, a method for remotely accessing broadcasting in this embodiment includes the following steps:

201. The session server receives a request message sent by the call center, where the request message carries broadcast area information.

In one embodiment, when the user calls the unified access code of the system, and the ACD of the call center 101 connected to the operator network receives the call, the ACD transfers the call to the CTI, and the IVR in the CTI will play the Prompt the user to select the voice stream of the broadcast area, and the ACD will send the voice stream to the user terminal through the operator network. The user can input the broadcast area information according to the prompt tone. After receiving the broadcast area information entered by the user, the CTI will send a request for SIP The request message of the phone number is sent to the session server, and the broadcast area information is carried in the request message. Optionally, the user inputs broadcast area information by pressing keys, for example, village A is 01, village B is 02, and so on.

In another embodiment, the user can send a short message to the unified access code of the system, and the text content of the short message includes the content to be broadcast and broadcast area information. After the short message access gateway receives the short message, it sends the short message to CTI; after CTI obtains the broadcast area information sent by the user from the short message, it will send a request message for requesting a SIP phone number to the session server , and carry the broadcast area information in the request message.

202. The session server acquires the ID number of the corresponding broadcast terminal according to the broadcast area information, and selects an idle sip phone from the simulated multiple SIP phones to establish a mapping relationship with the broadcast terminal.

In one embodiment, the local storage of the session server pre-stores the broadcast area information and the corresponding relationship list of the broadcast terminal, and the session server can obtain the ID number of the corresponding broadcast terminal from the corresponding relationship list after receiving the broadcast area information .

In another embodiment, the broadcast area information and the corresponding list of broadcast terminals may also be stored in the call center, specifically, in the CTI. When the CTI receives the broadcast area information entered by the user through keystrokes or sent by SMS, it first obtains the ID number of the corresponding broadcast terminal from the locally stored correspondence list, and then adds the ID number of the broadcast terminal to the broadcast area information , and carry the broadcast area information added with the ID number in the request message sent to the session server, so the session server can directly obtain the ID number of the corresponding broadcast terminal from the received broadcast area information.

Subsequently, the session server queries the simulated multiple SIP phones, and selects an idle SIP phone to establish a mapping relationship with the broadcast terminal. In this way, when the idle sip phone receives the call, the session server can transfer the call to the corresponding broadcast terminal through the broadcast server. Optionally, an expiration time is set for the mapping relationship. If the sip phone does not receive a call within the expiration time, the mapping relationship becomes invalid and the sip phone resources are released.

203. The session server sends the number of the idle sip phone to the call center.

In this step, the conversation server sends the number of the idle sip phone to the CTI of the call center, so that the CTI can initiate a call to the sip phone. In one embodiment, the session server sends the ID number of the broadcast terminal to the call center at the same time, so that the call center can carry the ID number of the broadcast terminal in the call information to the sip phone. Therefore, when multiple calls are received, the session server does not need to query the corresponding broadcast terminal according to the sip phone number area, but can directly obtain the ID number of the corresponding broadcast terminal from the call information.

204. The session server accepts the call from the call center to the sip phone.

The call from the call center to the sip phone is specifically that the call center sends a session connection request (invite) message using the sip protocol to the sip phone. In one embodiment, the session server acquires the ID number of the corresponding broadcast terminal from the established mapping relationship between the sip phone and the broadcast terminal according to the sip phone. In another embodiment, after receiving the invite message, the session server directly parses the invite message to obtain the ID number of the broadcast terminal carried in the invite message. After acquiring the ID number of the corresponding broadcast terminal, the session server queries the corresponding broadcast server from the locally stored correspondence list between the broadcast terminal and the broadcast server. So far, the session server has learned the mapping relationship among the sip phone, the broadcast server and the broadcast terminal.

In addition, the session server sends a call response (200 OK) message to the CTI of the call center, thereby establishing a session between the sip telephone session server and the CTI, that is, a sip telephone channel is established between the two. At the same time, CTI will send a 200 OK message to ACD to establish a session, and ACD will also send a 200 OK message to the user terminal to establish a session.

Then, the ACD in the call center can transfer the voice stream of the user's call to the conversation server.

205. The session server sends the call to the broadcast terminal.

Specifically, the session server sends the call voice stream to the corresponding broadcast server according to the mapping relationship between the sip phone, the broadcast server and the broadcast terminal, and then the broadcast server sends the voice stream to the corresponding broadcast terminal, and the broadcast terminal transfers the voice stream Switch to analog signals and broadcast through sound playback equipment such as speakers.

The method for remotely accessing broadcasting provided by this embodiment uses a session server to connect the call center and the broadcasting system, and the session server transfers the call from the user terminal to the call center to the broadcasting system for broadcasting, so that the user can Use mobile phones, landlines, etc. to remotely access the broadcasting system by direct dialing or sending short messages for voice broadcasting.

In a preferred embodiment, the following steps are also included between steps 204 and 205:

a. The session server queries the corresponding broadcast server from the locally stored correspondence list between broadcast terminals and broadcast servers according to the ID number of the broadcast terminal, and sends the ID number of the broadcast terminal to the broadcast server.

Since the broadcast terminal is a broadcast terminal connected to one of the ports of the broadcast server, the broadcast server can know the port number and its status of the corresponding port after obtaining the ID number of the broadcast terminal. port. The status of the port includes two types: free and occupied. Occupied means that the port and the broadcast server connected to it are being used by other users, and idle means that the port and the broadcast server connected to it are not currently in use.

b. Receive the port number and status of the corresponding port returned by the broadcast server. This corresponding port is the port connected to the broadcast terminal of the broadcast server, and judge whether the status of the port is idle, and decide whether to send a call response message to the user according to whether the port is idle. Call Center.

Optionally, when the port is idle, it means that the port and the broadcast terminal connected to it can be used by the current user, and the session server sends a call response message to the call center to establish a session.

Optionally, when the port is occupied, it means that the port and the broadcast server connected to it have been used by other users, and the session server discards the call. It should be noted that when the port is occupied, the session server may not discard the user's call, but forcefully send the call to the corresponding broadcast server, and the broadcast server compares the authority of the user with the user currently using the broadcast terminal , when the user's authority is high, preempt the port and the broadcast terminal connected to it.

Optionally, if there are multiple broadcast areas selected by the user, corresponding to multiple ports, and some ports are idle and some ports are occupied, at this time, the session server can decide whether to send a call answer message to the caller according to the preset strategy. center. The strategy may be that, when the proportion of idle ports among the multiple ports corresponding to the broadcast area selected by the user reaches a preset value such as 50%, a call answer message is sent to the call center to establish a session.

With the solution of this preferred embodiment, the session server can decide whether to return to establish a session with the call center according to the state of the port of the broadcast server corresponding to the broadcast area selected by the user.

Embodiment two

Please refer to FIG. 4. This embodiment provides a method for remotely accessing broadcasting, including the following steps:

First, the call center accepts calls from users or receives short messages sent by users.

In one embodiment, the user terminal initiates a call to the call center through the unified access code, accesses the ACD of the call center, and the ACD transfers the call to the CTI. Optionally, the IVR in the CTI will play a voice stream for prompting the user to select a broadcast area, and the ACD will send the voice stream to the user terminal.

In another embodiment, the user terminal sends a short message to the call center through the unified access code, and the text content of the short message includes the text content to be broadcast and broadcast area information. Specifically, after receiving the short message through the unified access code, the short message access gateway of the call center sends the short message to the CTI of the call center.

301. The call center acquires broadcast area information determined by the user.

In one embodiment, the call center obtains the broadcast area information input by the user according to the prompt tone. Optionally, the user inputs broadcast area information by pressing keys, for example, village A is 01, village B is 02, and so on.

In another embodiment, the CTI of the call center parses the obtained short message to obtain the broadcast area information contained in the short message.

302. The call center sends a request message carrying broadcast area information to the session server.

After obtaining the broadcast area information, the CTI of the call center will send a request message for requesting a SIP phone number to the session server, and the request message will carry the broadcast area information.

303. Receive the number of the idle sip phone returned by the session server.

In one embodiment, the CTI simultaneously receives the ID number of the corresponding broadcast terminal returned by the session server.

304. The call center initiates a call to the sip phone, so that the session server sends the call to the broadcast terminal corresponding to the broadcast area information.

The calling of the sip phone by the call center is specifically for the call center to send a session connection request (invite) message using the sip protocol to the sip phone; then receive the call response (200 OK) message returned by the session server, and the 200 OK message indicates The session between the call center and the session server is established successfully. The call center can then route the user's call to the session server. In one embodiment, the call center directly sends the voice stream of the user's call to the session server. In another embodiment, the CTI of the call center sends the text content to be broadcast contained in the received short message to the TTS, and the TTS converts the text content into a voice stream, and then the call center sends the voice stream to the conversation server.

After the session server receives the call voice stream, it sends the call voice stream to the corresponding broadcast server according to the mapping relationship between the sip phone, the broadcast server and the broadcast terminal, and then the broadcast server sends the voice stream to the corresponding broadcast terminal, and the broadcast terminal sends the call voice stream to the corresponding broadcast terminal. The voice stream is converted into an analog signal and broadcast through a sound reproduction device such as a loudspeaker.

It should be noted that, when the call information received by the session server does not include the ID number of the broadcast terminal, the session server queries and obtains the ID number of the corresponding broadcast terminal according to the established mapping relationship between the sip phone and the broadcast terminal; When the call information received by the session server includes the ID number of the broadcast terminal, the ID number of the broadcast terminal is directly acquired from the call information.

The call center can obtain the ID number of the broadcasting terminal in two ways. In one embodiment, the call center can query and obtain the ID number of the broadcast terminal from the locally stored broadcast area information and the corresponding relationship list of the broadcast terminal according to the broadcast area information, and can add the ID number of the broadcast terminal to the broadcast area information , the broadcast area information is carried in the request message sent to the session server. In another embodiment, after the call center sends the request message carrying the broadcast area information to the session server, it receives the ID number of the broadcast terminal returned by the session service. Then, the call center can carry the ID number of the broadcast terminal in the call initiated by the sip phone.

Optionally, the following steps may also be included before step 301:

Receive a registration request message sent by the session server, where the registration request message carries information about a plurality of session initiation protocol sip phones simulated by the session server;

Send a registration success response message to the session server.

The method for remotely accessing broadcasting provided by this embodiment uses a session server to connect the call center and the broadcasting system, and the session server transfers the call from the user terminal to the call center to the broadcasting system for broadcasting, so that the user can Use mobile phones, landlines, etc. to remotely access the broadcasting system by direct dialing or sending short messages for voice broadcasting.

Embodiment three

Please refer to FIG. 5, this embodiment provides a session server, including:

The receiving unit 401 is configured to receive a request message sent by the call center, where the request message carries broadcast area information;

The mapping unit 402 is used to obtain the ID number of the corresponding broadcast terminal according to the broadcast area information, and select an idle sip phone from a plurality of simulated session initiation protocol sip phones to establish a mapping relationship with the broadcast terminal;

A sending unit 403, configured to send the number of the idle sip phone to the call center;

The call processing unit 404 is configured to accept a call from the call center to the sip phone, and send the call to the broadcast terminal.

In an embodiment, the session server may further include: a port obtaining unit 405 and a port judging unit 406 . in:

The port obtaining unit 405 is configured to query the corresponding broadcast server from the locally stored correspondence list between broadcast terminals and broadcast servers according to the ID number of the broadcast terminal, and send the ID number of the broadcast terminal to the broadcast server. The server receives the port number and status of the corresponding port returned by the broadcast server, and the corresponding port is a port connected to the broadcast terminal of the broadcast server;

The port judging unit 406 is configured to judge whether the state of the port is idle;

The call processing unit 404 is specifically configured to send a call response message to the call center when the port judging unit judges that the state of the port is idle, and when the port judging unit judges that the state of the port is not When idle, the call is dropped.

In another embodiment, the session server may also include a phone registration unit 407 .

The phone registration unit 407 is configured to simulate a plurality of session initiation protocol sip phones, send a registration request message carrying the sip phone information to the call center, and receive a registration success response message returned by the call center.

The conversation server of this embodiment is used to connect the call center and the broadcasting system to form a system for remote access broadcasting, and realize that the conversation server transfers the call of the user terminal to the call center to the broadcasting system for broadcasting, so that the user can use the mobile Telephones, landlines, etc. use direct dialing or sending short messages to remotely access the broadcasting system for voice broadcasting.

The session server in the embodiment of the present invention may be a computer or other physical entity, wherein the mapping unit, call processing unit, etc. may be implemented by a processor of the computer. In addition, the session server in the device embodiment of the present invention can perform any action performed by the session server in the method embodiment. Since the division of each unit in the device embodiment of the present invention is only a logical division, the actions executed by the session server in the device embodiment can be completed by the session server or by any unit of the session server.

Embodiment four

Please refer to FIG. 6, this embodiment provides a computer telephony integrated CTI system, including:

an acquiring unit 501, configured to acquire broadcast area information determined by a user;

A sending unit 502, configured to send a request message carrying the broadcast area information to the session server;

A receiving unit 503, configured to receive the idle sip phone number returned by the session server;

The calling unit 504 is configured to initiate a call to the sip phone, so that the session server sends the call to the broadcast terminal corresponding to the broadcast area information.

Optionally, the acquiring unit is further configured to acquire the ID number of the corresponding broadcast terminal from the locally stored list of correspondence between broadcast area information and broadcast terminals according to the broadcast area information input by the user, and store the ID number of the broadcast terminal number is added to the broadcast area information.

Optionally, the call center further includes:

The phone registration unit 505 is configured to receive a registration request message sent by the session server, the registration request message carrying information of a plurality of SIP phones simulated by the session server, and send a registration success response message to the session server.

With the call center of this embodiment, the user's call can be transferred to the conversation server, and then the conversation server will transfer the call to the broadcast system for broadcasting, so that the user can use mobile phones, fixed phones, etc. to directly dial or send short messages. Remotely access the broadcasting system in the form of messages for voice broadcasting.

Embodiment five

Please refer to FIG. 1 and FIG. 2. This embodiment provides a system for remote access broadcasting, including a call center 101 connected to the operator network, a session server 102 connected to the call center 101, and a session server connected to the session server. broadcasting system 103. Wherein, the call center 101 includes a computer telephony integrated CTI system and an automatic call distribution ACD system. The broadcast system 103 includes more than one broadcast server connected to the session server 102. Each broadcast server is connected to more than one broadcast terminal, and each broadcast terminal is connected to a Sound playback equipment. The session server emulates multiple session initiation protocol sip phones registered on the ACD. For the call center, the sip phone is equivalent to the agent phone; for the broadcasting system, it is equivalent to the audio source device. Wherein, the CTI system may further include an interactive voice response system IVR. The call center 101 may also include a short message access gateway and a text-to-speech synthesis system (Text To Speech, TTS) connected to the ACD and the CTI.

The session server is used to receive the request message sent by the call center, the request message carries the broadcast area information, obtains the ID number of the corresponding broadcast terminal according to the broadcast area information, and selects an idle sip from the simulated multiple session initiation protocol sip phones The phone establishes a mapping relationship with the broadcast terminal, sends the number of the idle sip phone to the call center, accepts the call from the call center to the sip phone, and sends the call to the broadcast terminal.

The call center is used to acquire the broadcast area information determined by the user, send a request message carrying the broadcast area information to the session server, receive the number of the idle sip phone returned by the session server, and initiate a call to the sip phone, so that The session server sends the call to the broadcast terminal corresponding to the broadcast area information.

The system for remotely accessing broadcasting will be further described in detail below.

The remote access broadcast system in this embodiment may have a unified access code assigned by an operator. The unified access code may be substantially the access code of the call center therein. For example, for a bank's call center, its access code may be 95555. For example, the unified access code of the remote access broadcasting system installed in township W may be 96123. The user terminal can initiate a call to the call center or send a short message to the call center through the access code.

For a call center, when a user initiates a call to the call center:

As a unified queuing machine, the ACD queues the calls of all user terminals and connects them to the CTI in a regular order. After the CTI receives the call transferred by the ACD, the IVR in the CTI plays a prompt tone to prompt the user to select a broadcast area, and the ACD sends the prompt tone to the user terminal through the operator network. The user can input the broadcast area information by pressing the buttons according to the prompt tone, for example, 01 for village A, 02 for village B, etc. After receiving the broadcast area information input by the user, the CTI will send a request message for requesting a SIP phone number to the session server, and carry the broadcast area information in the request message. Subsequently, CTI will receive the number of a SIP phone returned by the session server. Then, the CTI can initiate a call to the SIP phone, that is, send a session connection request (invite) message using the sip protocol to the sip phone. When the call center receives the call response (200 OK) message returned by the session server, it means that the session between the session server and the call center is established successfully. At the same time, the call center will also send a 200 OK message to the user terminal. Then, the call center can transfer the voice stream of the user's call to the conversation server, so that the conversation server will send the voice stream to the broadcasting system for broadcasting.

When the user sends a short message to the remote access broadcasting system:

After receiving the short message sent by the user terminal, the short message access gateway of the call center parses the short message and sends it to the CTI. It should be noted that the user needs to specify whether voice broadcasting is required and the broadcasting area in a fixed format. After obtaining the broadcast area information included in the short message, the CTI of the call center sends a request message for requesting a SIP phone number to the session server, and carries the broadcast area information in the request message. Subsequently, CTI will receive the number of a SIP phone returned by the session server. Then, the CTI can initiate a call to the SIP phone, that is, send a session connection request (invite) message using the sip protocol to the sip phone channel. When the call center receives the call response (200 OK) message returned by the session server, it means that the session between the session server and the call center is established. At the same time, the call center will also send a 200 OK message to the user terminal. Subsequently, the CTI of the call center will send the text information that needs to be broadcasted in the short message to the TTS system, and the TTS system will convert the text information into a voice stream, and then transfer the voice stream to the conversation server, so that the conversation server Send the voice stream to the broadcast system for broadcast.

For the broadcast system: After the broadcast server receives the ID number of the broadcast terminal sent by the session server, since the broadcast terminal is a broadcast terminal connected to one of the ports of the broadcast server, the broadcast server can know the port number and its status of the corresponding port , and sends the port number and its status to the session server. Subsequently, when the broadcast server receives the call voice stream sent by the session server, it sends the voice stream to the broadcast terminal, which decodes the digital signal into an analog signal and broadcasts it through a sound playback device such as an audio speaker.

With the remote access broadcasting system provided in this embodiment, users can remotely access by calling or sending short messages anytime and anywhere, and perform voice broadcasting in a designated area. As long as the user is within the coverage area of the operator's wireless signal, he can access the broadcasting system by calling or sending a short message, so as to perform real-time voice broadcasting in designated public places. The system can be used in various public places, such as rural areas, schools, shopping malls, stations, etc.

Application Scenarios

Assume that the access code of the remote access broadcasting system installed in Township W is 96123, and the user needs to perform public broadcasting to Village W01 in Township W. Please refer to Figure 7, the details are as follows:

One method is that the user directly initiates a call to the call center through the access code 96123 by telephone. Another way is that the user sends a short message to the call center through the access code 96123. The text content of the short message includes the text content to be broadcast and the broadcast area information.

401a. When the user directly initiates a call to the call center, after the CTI of the call center receives the call signaling, the IVR in the CTI plays a prompt tone to the user to prompt the user to input the broadcast area information through the telephone buttons, for example, for W01 village Input 01, CTI receives the broadcast area information selected and input by the user.

401b. When the user sends a short message to the call center, the short message access gateway of the call center receives the short message, sends the short message to the CTI, and the CTI of the call center obtains the broadcast area information contained in the short message.

402. The CTI of the call center sends a request message carrying broadcast area information for requesting a SIP phone to the session server. The session server obtains the ID number of the corresponding broadcast terminal from the corresponding relationship list between the broadcast area information and the broadcast terminal stored locally, and selects an idle sip phone from among the simulated multiple session initiation protocol sip phones to establish a mapping relationship with the broadcast terminal , and send the number of the sip phone and the ID number of the broadcasting terminal to the CTI of the call center.

403. The CTI of the call center sends a sip message for establishing a session with the session server to the sip phone. The sip message is specifically a session connection request INVITE message.

404. After receiving the sip message, the session server parses the sip message to obtain the carried broadcast terminal ID number, queries the broadcast server corresponding to the broadcast terminal ID number from the locally stored correspondence list between the broadcast terminal and the broadcast server, and The sip message is sent to the broadcast server after protocol conversion.

405. The broadcast server queries the port number of the broadcast server corresponding to the broadcast terminal ID according to the broadcast terminal ID carried in the SIP message sent by the session server, and returns the port number and port status information of the broadcast server to the session server.

406. The session server judges whether the state of the port is idle, and if so, sends a call response (200 OK) message to the call center. Otherwise the call is abandoned.

407. The call center receives the 200 OK message sent by the session server, indicating that the session between the call center and the session server is established successfully. .

408a. If the user accesses the system through a telephone call, the call center transfers the user's call to the conversation server, and the conversation server transfers the call to Connect to the corresponding broadcast server.

408b. If the user sends a short message to the system, the call center will read the short message in the database, and send the text content to be broadcast to the TTS system, and the TTS system will convert the text content into a voice stream; The voice stream is transferred to the session server, and the session server transfers the call to the corresponding broadcast server according to the mapping relationship between the SIP phone and the broadcast terminal and the corresponding relationship between the broadcast server and the broadcast terminal.

409. After receiving the voice stream of the call, the broadcast server of the broadcast system sends the voice stream to a corresponding broadcast terminal; the broadcast terminal converts the voice stream into an analog signal and broadcasts it through a speaker.

It should be noted that if a port of the broadcast server and the broadcast terminal connected to it are occupied, the session server can still transfer the voice stream of the call to the broadcast server, and the broadcast server can , to preempt the broadcast terminal; when the current user authority is low, give up the voice stream. It should be noted that the user's permission information can be written into the signaling stream sent to the broadcast system, so that the broadcast server can directly obtain the user's permission information when receiving the signaling stream, without querying the user's permission information in the database .

By adopting the method for remotely accessing broadcasting provided in this embodiment, users can remotely access the broadcasting system by calling a phone or sending a short message anytime and anywhere, and perform voice broadcasting in a designated area. As long as the user is within the coverage area of the operator's wireless signal, he can access the broadcasting system by calling or sending a short message, so as to perform real-time voice broadcasting in designated public places.

The method, device and system for remote access broadcasting provided by the embodiments of the present invention are described above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The descriptions of the above embodiments are only for helping Understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification is not It should be understood as a limitation of the present invention.

Claims (16)

1. A method for remotely accessing a broadcast, comprising:

a session server receives a request message sent by a call center, wherein the request message carries broadcast area information;

acquiring the ID number of a corresponding broadcast terminal according to the broadcast area information, and selecting an idle sip phone from a plurality of simulated sip phones to establish a mapping relation with the broadcast terminal;

sending the number of the idle sip phone to the call center;

receiving a call from the call center to the sip phone;

and sending the call to the broadcast terminal.

2. The method of claim 1, wherein the obtaining the ID number of the corresponding broadcast terminal according to the broadcast area information comprises:

acquiring the ID number of a corresponding broadcast terminal from a corresponding relation list of locally stored broadcast area information and the broadcast terminal; or,

and if the broadcast area information carries the ID number of the broadcast terminal, acquiring the ID number of the corresponding broadcast terminal from the broadcast area information.

3. The method of claim 1, wherein the accepting the call from the call center to the sip phone further comprises:

inquiring a corresponding broadcast server from a corresponding relation list of the locally stored broadcast terminal and the broadcast server according to the ID number of the broadcast terminal, and sending the ID number of the broadcast terminal to the broadcast server;

receiving a port number and a state of a corresponding port returned by the broadcast server, wherein the corresponding port is a port of the broadcast server connected with the broadcast terminal;

judging whether the state of the port is idle or not;

and when the state of the port is idle, sending a call response message to the call center.

4. The method of claim 3, wherein the accepting the call from the call center to the sip phone further comprises, prior to:

sending the ID number of the broadcast terminal to the call center;

after the receiving the call of the call center to the sip phone, the method further comprises the following steps:

and acquiring the ID number of the broadcast terminal carried in the calling information.

5. The method of claim 3, wherein sending the call to the broadcast terminal comprises:

and sending the call to a broadcast server corresponding to the broadcast terminal, and sending the call to the broadcast terminal through the broadcast server.

6. The method according to any one of claims 1 to 5, wherein before the session server receives the request message sent by the call center, the method further comprises:

the session server simulates a plurality of session initiation protocol sip telephones;

sending a registration request message carrying the sip telephone information to a call center;

and receiving a registration success response message returned by the call center.

7. A method for remotely accessing a broadcast, comprising:

acquiring broadcast area information determined by a user;

sending a request message carrying the broadcast area information to a session server;

receiving the number of the idle sip phone returned by the session server;

and initiating a call to the sip phone so that the session server sends the call to a broadcast terminal corresponding to the broadcast area information.

8. The method of claim 7, wherein initiating the call to the sip phone further comprises, prior to: receiving the ID number of the broadcast terminal returned by the session server;

the initiating a call to the sip phone comprises: and carrying the ID number of the broadcast terminal in the call information.

9. The method of claim 7, wherein before sending the request message to the session server, further comprising:

acquiring the ID number of the corresponding broadcast terminal from a corresponding relation list of the locally stored broadcast area information and the broadcast terminal according to the broadcast area information;

the ID number of the broadcast terminal is added to broadcast area information.

10. The method of any of claims 7 to 9, wherein the obtaining user-determined broadcast area information further comprises:

receiving a registration request message sent by a session server, wherein the registration request message carries information of a plurality of session initiation protocol sip telephones simulated by the session server;

and sending a registration success response message to the session server.

11. A session server, comprising:

the receiving unit is used for receiving a request message sent by a call center, wherein the request message carries broadcast area information;

the mapping unit is used for acquiring the ID number of the corresponding broadcast terminal according to the broadcast area information, and selecting an idle sip phone from a plurality of simulated session initiation protocol sip phones to establish a mapping relation with the broadcast terminal;

a sending unit, configured to send the number of the idle sip phone to the call center;

and the call processing unit is used for receiving the call of the call center to the sip telephone and sending the call to the broadcast terminal.

12. The session server of claim 11, further comprising: a port acquisition unit and a port judgment unit:

the port acquiring unit is used for inquiring a corresponding broadcast server from a corresponding relation list of a locally stored broadcast terminal and the broadcast server according to the ID number of the broadcast terminal, sending the ID number of the broadcast terminal to the broadcast server, and receiving the port number and the state of the corresponding port returned by the broadcast server, wherein the corresponding port is the port of the broadcast server connected with the broadcast terminal;

the port judging unit is used for judging whether the state of the port is idle or not;

the call processing unit is specifically configured to send a call response message to the call center when the port determining unit determines that the port is idle.

13. The session server according to claim 11 or 12, further comprising:

the telephone registration unit is used for simulating a plurality of session initiation protocol sip telephones, sending registration request information carrying sip telephone information to a call center, and receiving registration success response information returned by the call center.

14. A call center, comprising:

an acquisition unit configured to acquire broadcast area information determined by a user;

a sending unit, configured to send a request message carrying the broadcast area information to a session server;

the receiving unit is used for receiving the number of the idle sip phone returned by the session server;

and the calling unit is used for initiating a call to the sip telephone so that the session server can send the call to a broadcast terminal corresponding to the broadcast area information.

15. The call center of claim 14, wherein:

the acquiring unit is further used for acquiring the ID number of the corresponding broadcast terminal from the corresponding relation list of the locally stored broadcast area information and the broadcast terminal according to the broadcast area information input by the user, and adding the ID number of the broadcast terminal into the broadcast area information.

16. The call center according to claim 14 or 15, further comprising:

and the telephone registration unit is used for receiving a registration request message sent by the session server, carrying information of a plurality of session initiation protocol sip telephones simulated by the session server and sending a registration success response message to the session server.

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