WO2012079286A1

WO2012079286A1 - Method, apparatus and system for remote access to broadcasting

Info

Publication number: WO2012079286A1
Application number: PCT/CN2011/002095
Authority: WO
Inventors: 苏业刚
Original assignee: 华为技术有限公司
Priority date: 2010-12-13
Filing date: 2011-12-13
Publication date: 2012-06-21
Also published as: CN102136918A; CN102136918B

Abstract

Disclosed in the embodiments of the present invention is a method for remote access to broadcasting, which comprises the following steps: a session server receives a request message with area information of broadcasting sent by a call center, acquires corresponding identifier(ID) number of a broadcasting terminal according to the area information of the broadcasting, selects an idle session initiation protocol(sip) phone, from multiple simulated sip phones, to establish mapping relationship with the broadcasting terminal, sends the idle sip phone number to the call center, receives a call from the call center to the sip phone, and sends the call to the broadcasting terminal. Also disclosed in the embodiments of the present invention are the corresponding apparatus and system. With the technical solution of the present invention, users can remotely access to the broadcasting system to perform voice broadcast by utilizing mobile phones, fixed phones etc.

Description

Method, device and system for remote access broadcast

The present invention relates to the field of communications technologies, and in particular, to a method, device, and system for remote access broadcast. Background technique

Public places such as rural areas, stations, and campuses usually need to use a broadcast system to speak or play voice programs. The conventional broadcasting system generally includes a sound source device, a control device, and a sound emitting device which are sequentially connected through a transmission line. The sound source device may be a manual microphone or a broadcast server, the control device may be a broadcast terminal, and the sound emitting device may be an audio or a speaker. The working process of the broadcasting system may be: the broadcast server plays the voice file, generates the voice digital signal and transmits it to the broadcast terminal, the broadcast terminal decodes the voice, converts it into an analog signal, and performs power amplification on the analog signal, and then outputs the sound to the sound through the audio line. Or the speaker plays. The working process of the broadcasting system may also be: as a manual microphone of the sound source device or a headphone of the radio, directly transmitting the analog signal to the broadcast terminal, and the broadcast terminal power-amplifies the analog signal, and then outputs the audio signal to the sound or the speaker through the audio line. Play.

In the prior art broadcast system, the sound source device is usually limited to a small range, such as a broadcast room, so that the broadcaster must broadcast in the smaller range. Even with a wireless microphone as the source device, the announcer must still broadcast within the range of the wireless microphone signal. It can be seen that the traditional broadcast system cannot realize remote access broadcast, for example, accessing broadcasts across counties, cities, and even provinces, and it is also impossible to access anytime and anywhere.

The inventor has noticed that a call center for enterprise applications can implement a remote access session. Typical call centers include: Interconnected Computer Telephony Integration (CTI), Automatic Call Distribution (ACD) and multiple agent phones registered on the ACD. Among them, CTI includes an interactive voice response system (IVR). The call center and the carrier network are connected by a 75-ohm impedance coaxial cable (E1 line), and the enterprise applies for a number resource, that is, an access code, to the call center. The user dials the access code of the enterprise, and the CTI of the call center plays the prompt tone to the user. If the manual is required to be connected, the CTI transfers the call to an idle agent phone and directly connects the user. One-on-one conversation with the agent's phone.

The prior art call center can realize remote access anytime and anywhere, but can only realize one user's call to an internal person, and cannot realize a public broadcast of a user facing a large number of people. Summary of the invention

Embodiments of the present invention provide a method, an apparatus, and a system for remotely accessing a broadcast.

A method for remotely accessing a broadcast, comprising:

The session server receives a request message sent by the call center, and the request message carries a broadcast area letter.

Obtaining an ID number of the corresponding broadcast terminal according to the broadcast area information, and selecting an idle sip phone from the simulated multiple session initial protocol sip phone to establish a mapping relationship with the broadcast terminal;

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

Accept the call center's call to the sip phone;

And send the call to the broadcast terminal.

A method for remotely accessing a broadcast, comprising:

Obtaining broadcast area information determined by the user;

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

Receiving 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, including:

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

a mapping unit, configured to acquire an ID number of the corresponding broadcast terminal according to the broadcast area information, and select an idle sip phone from the simulated multiple session initial 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;

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

A call center that includes: An obtaining 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 the session server, and a receiving unit, configured to receive a number of the idle sip phone returned by the session server;

a calling unit, 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.

The embodiment of the present invention uses a session server to connect the call center and the broadcast system, and the session server transfers the call of the user terminal to the call center to the broadcast system for broadcasting, so that the user can use the mobile phone, the fixed telephone, and the like. Access the broadcast system for voice broadcast. DRAWINGS

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

Figure 2 is a partial structural schematic view of the system of Figure 1;

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

4 is a schematic flowchart of a method for remotely accessing a broadcast 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 a specific application scenario according to an embodiment of the present invention. detailed description

The embodiment of the invention provides a method for remotely accessing a broadcast, which uses a session server to connect the call center and the broadcast system, and the session server transfers the call of the user terminal to the call center to the broadcast system for broadcast. The technical solution, the session server is equivalent to a seat call for the call center; for the broadcast system, the role is equivalent to the audio source device, so that the user can use the remote access broadcast system such as a mobile phone or a fixed telephone to perform voice broadcast. Embodiments of the present invention also provide corresponding apparatus and systems. The details are described below separately. Embodiment 1

This embodiment provides a method for remotely accessing a broadcast.

Referring to FIG. 1, the method involves a call center 101 connected to an operator network, a session server 102 connected to the call center 101, and a broadcast system 103 connected to the session server. Among them, the call center 101 includes a computer telephony integrated CTI system and an automatic call distribution ACD. The 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 emitting device. The computer telephony integration CTI system may in turn 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.

Referring to Figure 2, session server 102 simulates multiple session initiation protocols. The sip phone is registered on the ACD. Sip is an application layer signaling control protocol used to create, modify, and release sessions for one or more participants. The sip phone is equivalent to a seat call for a call center; it is equivalent to a source device for a broadcast system. The call center and the broadcast system are connected by the sip phone. Optionally, the process of the session server 102 simulating the multiple session initial protocol sip phone registration on the ACD is: 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 call. The ACD of the center; the ACD grants 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 includes: 1. Simulating more than one Session Initiation Protocol (SIP). The phone is registered in the call center. For the call center, a sip phone is equivalent to a seat call; Sending messages sent by the call center and the broadcast system to each other.

Referring to FIG. 3, a method for remotely accessing a broadcast 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 carrier network receives the call, the ACD transfers the call to the CTI, and the IVR in the CTI will play for the call. The user is prompted to select a voice stream in the broadcast area, and the ACD sends the voice stream to the user terminal through the carrier network. The user can input the broadcast area information according to the prompt tone. After receiving the broadcast area information input by the user, the CTI sends a request for requesting the 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 the broadcast area information by pressing a button, for example, A village is 01, and B village is 02.

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 the broadcast area information. After receiving the short message, the short message access gateway sends the short message to the CTI; after acquiring the broadcast area information sent by the user from the short message, the CTI sends a request message for requesting the SIP phone number to the session server. , And carrying the broadcast area information in the request message.

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

In an embodiment, the local area of the session server is pre-stored with the broadcast area information and the correspondence list of the broadcast terminal, and the session server may 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 correspondence list of the broadcast terminal may also be stored in the call center, and may be stored in the CTI. After receiving the broadcast area information that is sent by the user through the key input or by using the short message, the CTI 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 carrying the broadcast area information with the ID number added to the request message sent to the session server, and 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 plurality of session initial protocol 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 picks up 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, and if the sip phone does not hear the call within the expiration time, the mapping relationship is invalid, and the sip telephony resource is released.

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

In this step, the session server sends the number of the idle sip phone to the CTI of the call center for the CTI to initiate a call to the sip phone. In one embodiment, the session server simultaneously transmits the ID number of the broadcast terminal to the call center to facilitate the call center carrying the ID number of the broadcast terminal in the information of the call to the sip phone. Therefore, when there are multiple calls, 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 information of the call.

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

The call center calls the sip phone, specifically the call center sends a session connection request (invite) message using the sip protocol to the sip phone. In an embodiment, the session server obtains the corresponding broadcast terminal from the mapping relationship between the established sip phone and the broadcast terminal according to the sip phone. The ID number of the end. 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 by the invite message. After obtaining 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. At this point, the session server has learned the mapping relationship between the sip phone, the broadcast server, and the broadcast terminal.

In addition, the session server sends a call answer (200 OK) message to the CTI of the call center, whereby a session between the sip telephony session server and the CTI is established, i.e., a sip telephony channel is established between the two. At the same time, the CTI will send a 200 OK message to the ACD to establish a session, and the ACD will also send a 200 OK message to the user terminal to establish a session.

The call center's ACD can then forward the voice stream of the user's call to the session 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. It is replaced with an analog signal and broadcasted by a sound emitting device such as a horn.

The remote access broadcast method provided by the embodiment uses a session server to connect the call center and the broadcast system, and the session server transfers the call of the user terminal to the call center to the broadcast system for broadcasting, so that the user can Using a mobile phone, a fixed telephone, etc., to directly access the broadcast system for voice broadcast by directly dialing or sending a short message.

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

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

The broadcast terminal is a broadcast terminal connected to one of the ports of the broadcast server. After obtaining the ID number of the broadcast terminal, the broadcast server can obtain the port number of the corresponding port and its status, and the corresponding port is the connection broadcast terminal of the broadcast server. port. The status of the port includes both idle and occupied. The broadcast server indicating that the port and its connection are used by other users is idle. The idle indicates that the port and its connected broadcast server are not currently used.

And receiving a port number and a status of the corresponding port returned by the broadcast server, where the corresponding port is a port of the broadcast server connected to the broadcast terminal, and determining whether the status of the port is idle, according to Whether the port is idle determines whether to send a call answer message to the call center.

Optionally, when the port is idle, the port and its connected broadcast terminal 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, the port and its connected broadcast server are already 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 call of the user, but forcibly send the call to the corresponding broadcast server, and the broadcast server compares the user with the user who is currently using the broadcast terminal. Permission, when the user's authority is high, preempt the port and the broadcast terminal connected to it.

Optionally, if the user selects multiple broadcast areas, corresponding to multiple ports, and some of the ports are idle, and some ports are occupied, the session server may decide whether to send a call response message to the call according to a preset policy. center. The policy may be: when the proportion of the idle ports in the plurality of ports corresponding to the broadcast area selected by the user reaches a preset value, for example, 50%, the call answer message is sent to the call center to establish a session.

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

Embodiment 2

Referring to FIG. 4, the embodiment provides a method for remotely accessing a broadcast, including the following steps: First, the call center accepts a call of the user or receives a short message sent by the user.

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 sends the voice stream to the user terminal.

In another embodiment, the user terminal sends a short message to the call center by using a unified access code, and the text content of the short message includes text content to be broadcast and broadcast area information. Specifically, after receiving the short message by using the unified access code, the short message of the call center 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 broadcast area information that the user inputs according to the prompt tone. Optionally, the user inputs the broadcast area information by using a button, for example, A village is 01, and B village is 02.

In another embodiment, the CTI of the call center parses the obtained short message, and obtains the short message. Broadcast area information contained in .

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

After the CTI of the call center obtains the broadcast area information, it sends a request message for requesting the SIP phone number to the session server, and carries the broadcast area information in the request message.

303. Receive a number of idle sip phones 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 center sends a call connection request (invite) message to the sip phone to the sip phone, and then receives a call answer (200 OK) message returned by the session server, and the 200 OK message is displayed. The session between the call center and the session server was established successfully. The call center can then send the user's call to the session server. In one embodiment, the call center sends the voice stream of the user call directly to the session server. In another embodiment, the CTI of the call center sends the text content to be broadcast included 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 session. server.

After receiving the call voice stream, 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 will The voice stream is converted into an analog signal and broadcasted through a sound emitting device such as a speaker.

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

The call center can obtain the ID number of the broadcast terminal in two ways. In an embodiment, the call center queries and obtains the ID number of the broadcast terminal from the locally stored broadcast area information and the correspondence list of the broadcast terminal according to the broadcast area information, and may 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 transmitting the request message carrying the broadcast area information to the session server, the call center receives the ID number of the broadcast terminal returned by the session service. Then, the call center can be on the sip The call originated by the phone carries the ID number of the broadcast terminal.

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

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

Send a registration success response message to the session server.

The remote access broadcast method provided by the embodiment uses a session server to connect the call center and the broadcast system, and the session server transfers the call of the user terminal to the call center to the broadcast system for broadcasting, so that the user can Using a mobile phone, a fixed telephone, etc., to directly access the broadcast system for voice broadcast by directly dialing or sending a short message. Embodiment 3

Referring 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 configured to acquire an ID number of the corresponding broadcast terminal according to the broadcast area information, and select an idle sip phone from the simulated multiple session initial 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 one embodiment, the session server may further include: a port obtaining unit 405 and a port determining unit 406. among them:

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

The port determining unit 406 is configured to determine whether the status of the port is idle. The call processing unit 404 is specifically configured to send a call response message to the port determining unit when determining that the status of the port is idle. The call center is judged by the port judgment unit When the state of the port is not idle, the call is discarded.

In another embodiment, the session server can 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.

With the session server of the embodiment, the call center and the broadcast system are connected to form a remote access broadcast system, and the session server transfers the call of the user terminal to the call center to the broadcast system for broadcast, so that the user can use the mobile The telephone, the fixed telephone, and the like can remotely access the broadcast system for voice broadcast by directly dialing or sending a short message.

The session server in the embodiment of the present invention may be a computer or other physical entity, wherein the mapping unit, the call processing unit, and the like may be completed by a processor of the computer. Moreover, the session server in an embodiment of the apparatus of the present invention can perform any of the actions performed by the session server in the method embodiments. Since the division of each unit in the apparatus embodiment of the present invention is only a logical division, the actions performed by the session server in the write device embodiment can be performed by the session server or by any unit of the session server. Embodiment 4

Referring to FIG. 6, the embodiment provides a computer telephony integrated CTI system, including: an obtaining unit 501, configured to acquire broadcast area information determined by a user;

The sending unit 502 is configured to send a request message that carries the broadcast area information to the session server.

The receiving unit 503 is configured to receive a number of the idle sip phone returned by the session server, and 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 area information. Corresponding broadcast terminal.

Optionally, the acquiring unit is further configured to obtain, according to the broadcast area information input by the user, the ID number of the corresponding broadcast terminal from the locally stored broadcast area information and the correspondence list of the broadcast terminal, and set the ID of the broadcast terminal. The number is added in 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, where the registration request message carries information about multiple session initiation protocol sip phones simulated by the session server. A registration success response message is sent to the session server.

With the call center of this embodiment, the user's call can be transferred to the session server, and then the session server transfers the call to the broadcast system for broadcast, so that the user can use the mobile phone, the fixed telephone, etc. to directly dial or send a short call. The way of the message is to remotely access the broadcast system for voice broadcast.

Embodiment 5

Referring to FIG. 1 and FIG. 2, this embodiment provides a remote access broadcast system, including a call center 101 connected to an operator network, a session server 102 connected to the call center 101, and a connection with the session server. Broadcast system 103. The call center 101 includes a computer telephony integrated CTI system and an automatic call distribution ACD system. The broadcast system 103 includes one or more broadcast servers connected to the session server 102. Each broadcast server is connected to one or more broadcast terminals, and each broadcast terminal is connected. Sound equipment. The session server simulates multiple session initiation protocols. The sip phone is registered on the ACD. The sip phone is equivalent to a seat phone for a call center; for a broadcast system, it is equivalent to a source device. 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 (TTS) connected to the ACD and the CTI.

a session server, configured to receive a request message sent by the call center, the request message carries the broadcast area information, obtain the ID number of the corresponding broadcast terminal according to the broadcast area information, and select an idle sip from the simulated multiple session initial 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 of the call center to the sip phone, and sends the call to the broadcast terminal.

a call center, configured to obtain 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 as to The call is sent to the broadcast terminal corresponding to the broadcast area information by the session server.

The system of remote access broadcast is described in further detail below.

The remote access broadcast system of 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 call center of a bank, the access code can be 95555. For example, the remote access installation installed in W township For the broadcast system, the unified access code can be 96132. 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 a call center:

As a unified queuing machine, the ACD uniformly queues calls of all user terminals into the CTI in the order of rules. After the CTI receives the call forwarded 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 carrier network. The user can input the broadcast area information by pressing the button according to the prompt tone, for example, A village is 01 and B village is 02. After receiving the broadcast area information input by the user, the CTI sends a request message for requesting the SIP phone number to the session server, and carries the broadcast area information in the request message. The CTI will then receive the number of a SIP phone returned by the Session Server. The CTI can then initiate a call to the SIP phone by sending a session connection request (invite) message using the sip protocol to the sip phone. After the call center receives the call answer (200 OK) message returned by the session server, the session between the conference server and the call center is successfully established. At the same time, the call center will also send a 200 OK message to the user terminal. The call center can then forward the voice stream of the user's call to the conference server so that the voice server will broadcast the voice stream to the broadcast system for broadcast.

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

After receiving the short message sent by the user terminal, the short message of the call center of the call center parses and sends the short message to the CTI. It should be noted that the user needs to specify whether or not to perform voice broadcast and broadcast areas in a fixed format. After the CTI of the call center obtains the broadcast area information included in the short message, it sends a request message for requesting the SIP phone number to the session server, and carries the broadcast area information in the request message. The CTI will then receive the number of a SIP phone returned by the Session Server. The CTI can then initiate a call to the SIP phone by sending a session connection request ( invite ) message using the sip protocol to the sip phone channel. When the call center receives the call answer (200 OK) message returned by the session server, it indicates 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 of the short message that needs to be broadcasted to the TTS system, and the TTS system converts the text information into a voice stream, and then transfers the voice stream to the session server, thereby being configured by the session server. The voice stream is sent to the broadcast system for broadcast.

For the broadcast system: after receiving the ID number of the broadcast terminal sent by the session server, the broadcast server broadcasts because the broadcast terminal is a broadcast terminal connected to one of the ports of the broadcast server. The server can know the port number of the corresponding port and its status, and send the port number of the port and its status to the session server. Then, after the broadcast server receives the call voice stream sent by the session server, the voice stream is sent to the broadcast terminal, and the broadcast terminal decodes the digital signal into an analog signal, and then broadcasts through a sound emitting device such as an audio speaker.

With the remote access broadcast system provided in this embodiment, the user can remotely access the designated area by using a telephone call or sending a short message at any time and place. As long as the user is within the coverage of the operator's wireless signal, the broadcast system can be accessed by dialing or sending a short message over the telephone to perform real-time voice broadcast to the designated public place. The system can be used in a variety of public places, such as rural areas, schools, shopping malls, stations, and the like. Application scenario

Assume that the access code of the remote access broadcast system installed in W township is 96123, and the user needs to public broadcast to W01 village in W township. Please refer to Figure 7, as detailed below:

One way is for the user to initiate a call directly to the call center via the access code 96123 using the telephone. Another way is that the user sends a short message to the call center through the access code 96123, and the text content of the short message includes text content to be broadcast and broadcast area information.

401a, when the user directly initiates a call to the call center, the CTI of the call center receives the call signaling, and then the user prompts the user to input the broadcast area information by using the IVR in the CTI, for example, for the W01 village. Enter 01, and the CTI receives the broadcast area information selected by the user.

401b, when the user sends a short message to the call center, the short message of the call center of the call center receives the short message, and sends the short message to the CTI, and the CTI of the call center obtains the broadcast area information included in the short message.

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

405. The broadcast server queries the port number of the broadcast server corresponding to the broadcast terminal ID number according to the broadcast terminal ID number 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 determines whether the status of the port is idle, and if yes, 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 successfully established. .

408a, if the user accesses the system by using a telephone call, the call center transfers the user's call to the session server, and the session server turns the call according to the mapping relationship between the SIP phone and the broadcast terminal and the correspondence between the broadcast server and the broadcast terminal. 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, send the text content to be broadcasted to the TTS system, and convert the text content into a voice stream by the TTS system; 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 correspondence 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 the corresponding broadcast terminal. The broadcast terminal converts the voice stream into an analog signal and broadcasts through the broadcast.

It should be noted that, if a port of the broadcast server and the connected broadcast terminal are in an occupied state, the session server can still transfer the voice stream of the call to the broadcast server, and the broadcast server can be based on the user authority level, when the current user authority is high. , preempt the broadcast terminal; when the current user right is low, the voice stream is abandoned. It should be noted that the user's permission information can be written into the signaling flow sent to the broadcast system, so that the broadcast server can directly obtain the user's permission information when receiving the signaling flow, without querying the user permission information in the database. . With the remote access broadcast method provided by the embodiment, the user can remotely access the broadcast system by using a telephone call or sending a short message to perform voice on the designated area. Broadcast. As long as the user is within the coverage of the operator's wireless signal, the broadcast system can be accessed by dialing or sending a short message by telephone, thereby performing real-time voice broadcast on the designated public place.

The foregoing description of the method, apparatus, and system for remote access broadcast provided by the embodiments of the present invention is only for facilitating understanding of the method and core idea of the present invention; and, for a person skilled in the art, The present invention is not limited by the scope of the present invention.

Claims

Rights request

A method for remotely accessing a broadcast, comprising:

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

Obtaining an ID number of the corresponding broadcast terminal according to the broadcast area information, and selecting an idle sip phone from the simulated plurality of session initial protocol sip phones to establish a mapping relationship 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 transmitting the call to the broadcast terminal.

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

Obtaining the ID number of the corresponding broadcast terminal from the locally stored broadcast area information and the correspondence list of the broadcast terminal; or

And if the broadcast area information carries the ID number of the broadcast terminal, the ID number of the corresponding broadcast terminal is obtained from the broadcast area information.

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

Querying, according to the ID number of the broadcast terminal, the corresponding broadcast server from the locally stored correspondence list of the broadcast terminal and the broadcast server, and transmitting the ID number of the broadcast terminal to the broadcast server;

Receiving a port number and a status of a corresponding port returned by the broadcast server, where the corresponding port is a port of the broadcast server that is connected to the broadcast terminal;

Determining whether the state of the port is idle;

When the status of the port is idle, a call answer message is sent to the call center.

The method according to claim 3, wherein before the accepting the call of the call center to the sip phone, the method further comprises:

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

Obtaining an ID number of the broadcast terminal carried in the information of the call.

The method according to claim 3, wherein the sending the call to the broadcast terminal comprises:

The call is sent to a broadcast server corresponding to the broadcast terminal, and the call is transmitted to the broadcast terminal via the broadcast server.

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 includes:

The session server simulates multiple session initiation protocols sip phones;

Sending a registration request message carrying the sip phone information to the call center;

Receiving a registration success response message returned by the call center.

A method for remotely accessing a broadcast, comprising:

Obtaining broadcast area information determined by the user;

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

Receiving a number of an idle sip phone returned by the session server;

A call is initiated to the sip phone to facilitate the session server to send the call to a broadcast terminal corresponding to the broadcast area information.

The method of claim 7, further comprising: receiving the ID number of the broadcast terminal returned by the session server before initiating the call to the sip phone;

The initiating the call to the sip phone includes: carrying the ID number of the broadcast terminal in the call information.

The method according to claim 7, wherein the sending the request message to the session server further includes:

Obtaining, according to the broadcast area information, the ID number of the corresponding broadcast terminal from the locally stored broadcast area information and the correspondence list of the broadcast terminal;

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

The method according to any one of claims 7 to 9, wherein the obtaining the broadcast area information determined by the user further comprises:

A registration success response message is sent to the session server.

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;

a sending unit, configured to send the number of the idle sip phone to the call center; a call processing unit, configured to accept a call of the call center to the sip phone, and send the call to the Broadcast terminal.

The session server according to claim 11, further comprising: a port obtaining unit and a port determining unit:

The port obtaining unit is configured to query, according to the ID number of the broadcast terminal, a corresponding broadcast server from a locally stored correspondence list between the broadcast terminal and the broadcast server, and send the ID number of the broadcast terminal to the broadcast server. Receiving a port number and a status of the corresponding port returned by the broadcast server, where the corresponding port is a port of the broadcast server that is connected to the broadcast terminal, and the port determining unit is configured to determine whether the status of the port is Idle;

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

The session server according to claim 11 or 12, further comprising: a phone registration unit, configured to simulate a plurality of session initiation protocol sip phones, and send a registration request message carrying the sip phone information to the call center Receiving a registration success response message returned by the call center.

14. A call center, comprising:

An obtaining 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 the session server, a receiving unit, configured to receive a number of the idle sip phone returned by the session server, and a calling unit, 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.

15. The call center of claim 14 wherein:

The obtaining unit is further configured to obtain, according to the broadcast area information input by the user, the ID number of the corresponding broadcast terminal from the locally stored broadcast area information and the correspondence list of the broadcast terminal, and The ID number of the broadcast terminal is added to the broadcast area information.

The call center according to claim 14 or 15, further comprising: a phone registration unit, configured to receive a registration request message sent by the session server, where the registration request message carries multiple simulated by the session server The information of the session initiation protocol sip phone sends a registration success response message to the session server.