CN101291373B - Method and system realizing multi-party communication - Google Patents
Method and system realizing multi-party communication Download PDFInfo
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- CN101291373B CN101291373B CN200810066645XA CN200810066645A CN101291373B CN 101291373 B CN101291373 B CN 101291373B CN 200810066645X A CN200810066645X A CN 200810066645XA CN 200810066645 A CN200810066645 A CN 200810066645A CN 101291373 B CN101291373 B CN 101291373B
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Abstract
The invention relates to a method for realizing a multi-party session in a multi-party session system. In the method, a calling terminal triggers an application server to create a meeting, a dual-frequency dial tone does not enter meeting mixed audio; after the calling terminal inputs a telephone number of a called party, the application server creates a submeeting and moves a calling party into the submeeting, and a dual-frequency dial tone in the submeeting enters the meeting mixed audio; the calling party calls the called party in the submeeting and adds a first response media of the called party into the meeting mixed audio; after the called party is added into the meeting, the application server moves the called party from the submeeting into the meeting, and the calling party can choose to continue to stay in the submeeting to dial the next telephone number or switch to the meeting to carry out the meeting communication at this time. The invention also provides a system for realizing the method. The method ensures that the calling party can perceive the state of the called party in a real-time mode when the calling party invites a member to take part in the meeting, which has the same feeling with dialing the called party in an ordinary call and improves the satisfaction of using the multi-party session system for a user.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and system for implementing a multi-party call in a multi-party call system.
Background
There are many techniques in the current multi-party conference call system that have been described how to utilize the application server and the media resource server to implement the holding, controlling, etc. of the conference. However, the current implementation method has the following problems that a caller who holds a conference through Interactive Voice Response (IVR) cannot hear a prompt Voice of a called party when inviting the called party to participate in the conference, the prompt Voice may be a color ring set by a user or a prompt Voice of a network (for example, a call called by the caller cannot be connected temporarily), and the caller feels that: the members are invited to the conference with a different feel than they would have to dial the called party directly without going through the conference system.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an improved method for realizing multi-party communication, which enables a calling party to sense the state of a called party in real time when inviting members to participate in a conference, and comprises the color ring of the called party and voice prompt (no service area, temporary connection failure, busy, no response and the like), so that the calling party has the same feeling of inviting the members in the conference and dialing the called party in a common call, and the satisfaction degree of the user using a multi-party communication system is improved.
The method for realizing the multi-party call, the terminals finish the multi-party call service through the core network, the application server and the media resource server, comprising the following steps:
the method comprises the following steps: the calling terminal triggers an application server through a multi-party call service access code, the application server establishes a conference, and a dual-frequency Dial Tone (DTMF) does not enter conference mixing, namely the dual-frequency dial tone is filtered;
step two: after the calling terminal inputs the called telephone number, the application server creates a sub-conference and moves the calling terminal into the sub-conference, and DTMF in the sub-conference is added into conference sound mixing, namely DTMF is not filtered;
step three: calling a called party in the sub-conference by a calling party, and adding a first response medium of the called party into conference sound mixing;
step four: after the called party joins the conference, the application server moves the called party into the conference from the sub-conference, and at the moment, the calling party selects to continue to stay in the sub-conference to dial the next telephone number according to the requirement or switches to the conference for conference communication.
In the first step, the application server uses the media resource server to set the conference monitoring for the calling party.
In the second step, the application server uses the media resource server to set the conference control monitoring for the calling party.
In the third step, if the called terminal has a color ring or a prompt voice, the application server puts the media before the called terminal is off-hook into conference mixing sound, and the calling party can hear the prompt voice of the called terminal; if the called party does not have the ring back tone, the color ring or other prompting voices before the called party goes off the phone, the application server can play the ring back tone to the calling party by using the media server according to the actual situation, for example, if the called party does not have the ring back tone, the application server plays the ring back tone to the calling party through the media server. After the called party answers the call, the media resource server needs to renegotiate the media.
In the invention, if the called telephone number is the switchboard number, the calling party can directly dial the extension number by the key after hearing the prompt tone of the switchboard.
The method for realizing the multi-party call, the terminals finish the multi-party call service through the core network, the application server and the media resource server, comprising the following steps:
the method comprises the following steps: the conference creating party triggers an application server through a multi-party call service access code, the application server creates a conference and sets a dial tone not to enter conference mixing;
step two: a conference creating party selects to invite conference members, the application server creates a sub-conference, the conference creating party is moved into the sub-conference, and dial tone in the sub-conference is set to be mixed with the conference;
step three: a conference creating party calls the invited conference members in the sub-conference and sets a first response media of the invited conference members to enter conference mixing;
step four: the conference creator listens to the response media of the invited conference members.
And after the invited conference member joins the conference, the application server moves the invited conference member into the conference from the sub-conference.
The system for realizing the multi-party call comprises a conference establishing party, conference members and an application server; wherein,
the conference creator is used for sending a call request carrying an access code of the multi-party call service to call a core network, triggering an application server through the core network, calling conference members in a second conference and listening to response media of the conference members;
the application server is used for creating a first conference, adding a conference creating party into the first conference, creating a second conference, and moving the conference creating party from the first conference into the second conference, wherein in the first conference and the second conference, dial tone of the conference creating party is set to be mixed into the conference, and in the second conference, response media of conference members are set to be mixed into the conference.
The system also comprises a media resource server used for receiving the request of the application server, creating the first conference and the second conference and monitoring the conference creator.
Compared with the existing multi-party call conference system, the invention has the following advantages:
1. when the host invites the called party to participate in the conference through the conference control menu in the conference, the user experience can be improved;
2. the conference system can better solve the requirement of inviting the extension to participate in the conference, and because only one calling party and one called party exist in the sub-conference, the DTMF tone of the calling party can be uniquely transmitted to the called party after being mixed, thereby realizing the function of dialing the extension.
Drawings
FIG. 1 is a schematic diagram of a multi-party call system;
FIG. 2 is a schematic flow diagram of the present invention;
fig. 3 is a signaling flow diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, it is a schematic diagram of a multi-party call system. 100 is the application server, provide the logical control function of the multi-party conversation conference service, in the invention, the application server is also used for setting up the first meeting, and join the party of setting up the meeting in the first meeting, and set up the second meeting, and move the party of setting up the meeting into the second meeting from the first meeting, wherein, set up in the first meeting and second meeting, the dialing tone of the party of setting up the meeting enters the audio mixing of the meeting, set up in the second meeting, the response media of the conference member enters the audio mixing of the meeting; 101 is a core network, which may be a Next Generation Network (NGN) or a core network of an IP Multimedia Subsystem (IMS); 102 is an integrated access device; 103 is a terminal; 104 is a media resource server, which is mainly responsible for realizing the function of the conference, and completing conference audio mixing and number playing and receiving of the calling terminal; in the invention, the media resource server is also used for receiving the request of the application server, creating the first conference and the second conference and monitoring the conference creator. The terminals 102 and 103 may be implemented in various ways, and Public Switched Telephone Network (PSTN) terminals, mobile terminals, or User Equipment (UE) (user terminals in the IMS field) may all access a core Network in different access ways.
Between 100 and 101, and between 100 and 104 are standard SIP messages.
In the implementation environment, a user directly dials an access code of the multi-party call conference on the telephone terminal to hold the conference.
Fig. 2 is a schematic flow chart of the present invention, which specifically includes the following steps:
step 1, a calling terminal dials an access code of a multi-party call (conference) service;
step 2, after receiving the call request, the core network soft switch triggers the application server;
step 4, 5, the calling party selects to invite the conference member and inputs the number of the member to be invited;
step 6, the application server creates a sub-conference subconf, which needs to be created with the following characteristics: the dial tone of the terminal enters the conference mixing, namely DTMF dual-frequency dial tone of the terminal enters the conference mixing, and the application server sets conference monitoring on the calling party by using the media resource server;
step 9, the invited called party responds to the color ring or prompts voice;
step 10, the application server puts the media before off-hook into conference mixing sound, and at this time, the calling party can hear the called color ring or other prompting voice; if the called party does not have the ring back tone before the off-hook, the application server uses the media server to play the ring back tone for the calling party;
step 11, the called party picks up the hook response and renegotiates the media with the media resource server, the calling party and the called party enter a conversation state, and meanwhile, if the called party is a switchboard, the calling party can directly press a key to call an extension after hearing the prompt voice of the called party;
step 13, the caller can choose to invite a new called party continuously, or switch to the conference conf for conference communication.
Fig. 3 is a signaling flow diagram of the present invention. The specific explanation is as follows:
s200: the calling dialing access code triggers the call, and is triggered to the application server by the core network, and the invite message carries the media information of the calling.
S201: the application server replies to the response message.
S202: the application server establishes the connection of the playback number receiving to the media resource server for monitoring the playback number receiving of the calling party.
S203: the media resource server returns that the link was created successfully.
S204: the application server sends back a 200ok message to the calling party, and the calling party and the media resource server negotiate successfully.
S205: the caller sends an ack confirmation message back to the application server.
S206: the calling party and the media resource server finish the interaction of playing and receiving numbers, and the calling party selects to hold a conference.
S207 and S208: the application server controls the release of the link to the media resource server.
S209 and S210: the application server controls the update to the calling media.
S211, S212, S213: the application server creates a conference to the media resource server and joins the caller to the conference.
S214: the application server sends back the media negotiation information to the caller, and completes the media negotiation request initiated by S209.
S215: after the calling party joins the conference, the calling party plays the conference control menu voice, and implements the input of the monitoring calling party, and the calling party selects the invitation member.
S216, S217: the application server initiates a media negotiation request to the calling party for switching to the sub-conference.
S218, S219, S220: the application server creates a sub-conference using the media of the caller to the media resource server.
S221: the caller completes the media negotiation request initiated by S216.
S222: and completing the playback and number reception interaction of the calling party in the sub-conference, and selecting the inviting member and inputting the number of the invited member by the calling party.
S223, S224: the application server initiates a call request to the called party without media in the invite message. 18x (perhaps 180 or 183) carries media which may be ring tones or voice prompts, etc.
S225, S226, S227: the application server initiates a request for media negotiation.
S228: the application server sends a join conference INFO (this message is a standard SIP message) message to the media resource server.
S229: the call initiated by S223 is completed, and the media negotiation request initiated by S224 is completed.
S230, S231: the called party answers the phone.
S232: if the color ring media is carried in S224, the call media is updated in a reinvite form.
S233, S234, S235: the application server initiates a media negotiation to the media resource server with the called call media (media carried in reinvite).
S236, S237: the media negotiation request of reinvite of S232 is completed.
Therefore, the calling party invites the members in the sub-conference, media before the called party answers also enter conference mixing, and the calling party can hear the called polyphonic ringtone or other prompting voices, so that the experience of inviting the members in the conference is completely the same as that of ordinary calling. Meanwhile, when the sub-conference is established, the DTMF voice of the user is not designated and filtered, and if the called party is a switchboard, the calling party can directly dial the extension number after hearing the prompt voice of the called party for dialing the extension.
In the signaling flow chart, all application servers are directly connected with the terminal in order to simplify the flow. In practice, the application server is directly connected to the core network, and the signaling sent by the application server to the terminal must pass through the core network.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (9)
1. A method for realizing multi-party call, the terminals finish multi-party call service through a core network, an application server and a media resource server, characterized in that, the method comprises the following steps:
the method comprises the following steps: the calling terminal triggers an application server through a multi-party call service access code, the application server establishes a conference, and the dual-frequency dial tone does not enter conference mixing;
step two: after a calling terminal inputs a called telephone number, an application server creates a sub-conference and moves a calling party into the sub-conference, and a dual-frequency dial tone in the sub-conference enters conference sound mixing;
step three: calling a called party in the sub-conference by a calling party, and adding a first response medium of the called party into conference sound mixing;
step four: after the called party joins the conference, the application server moves the called party into the conference from the sub-conference, and at the moment, the calling party selects to continue to stay in the sub-conference to dial the next telephone number according to the requirement or switches to the conference for conference communication.
2. The method for multi-party call as claimed in claim 1, wherein in step one, the application server uses the media resource server to monitor the caller setting.
3. The method of claim 1, wherein in step two, the application server uses a media resource server to monitor the caller setting.
4. The method of claim 1, wherein in the third step, if the called terminal has a color ring or a prompt voice, the application server puts the media before the called terminal goes off-hook into a conference mixing sound, and at this time, after the called terminal goes off-hook and responds, the application server needs to renegotiate the media with the media resource server.
5. The method of claim 1 or 4, wherein if the called phone number is a switchboard number, the caller can dial the extension number directly by pressing a key after hearing the prompt tone.
6. A method for realizing multi-party call, the terminals finish multi-party call service through a core network, an application server and a media resource server, characterized in that, the method comprises the following steps:
the method comprises the following steps: the conference creating party triggers an application server through a multi-party call service access code, the application server creates a conference and sets a dial tone not to enter conference mixing;
step two: a conference creating party selects to invite conference members, the application server creates a sub-conference, the conference creating party is moved into the sub-conference, and dial tone in the sub-conference is set to be mixed with the conference;
step three: a conference creating party calls the invited conference members in the sub-conference and sets a first response media of the invited conference members to enter conference mixing;
step four: the conference creator listens to the response media of the invited conference members.
7. The method of claim 6, wherein after the invited conference member joins the conference, the application server moves the invited conference member from the sub-conference into the conference.
8. The system for realizing the multi-party call is characterized by comprising a conference creator, conference members and an application server; wherein,
the conference creator is used for sending a call request carrying an access code of the multi-party call service to call a core network, triggering an application server through the core network, calling conference members in a second conference and listening to response media of the conference members;
the application server is used for creating a first conference, adding a conference creating party into the first conference, creating a second conference, and moving the conference creating party from the first conference into the second conference, wherein in the first conference and the second conference, dial tone of the conference creating party is set to be mixed into the conference, and in the second conference, response media of conference members are set to be mixed into the conference.
9. The system for enabling multi-party calls of claim 8, wherein the system further comprises:
and the media resource server is used for receiving the request of the application server, creating the first conference and the second conference and monitoring the conference creator.
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| CN200810066645XA CN101291373B (en) | 2008-04-15 | 2008-04-15 | Method and system realizing multi-party communication |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102137080B (en) | 2010-06-30 | 2014-09-03 | 华为技术有限公司 | Method, device and system for cross-platform conference convergence |
| US8654953B2 (en) | 2010-11-18 | 2014-02-18 | International Business Machines Corporation | Managing subconference calls within a primary conference call |
| CN102123211B (en) * | 2011-02-22 | 2015-04-01 | 中兴通讯股份有限公司 | Realizing method and system of multi-party calling service |
| CN102307190A (en) * | 2011-08-19 | 2012-01-04 | 中兴通讯股份有限公司 | Method for realizing multimedia conference and multimedia conference platform |
| CN103457914B (en) * | 2012-05-31 | 2017-08-01 | 南京中兴新软件有限责任公司 | Method, application server and the service system of ring-back tone are listened in multimedia conferencing |
| CN103002167B (en) * | 2012-12-20 | 2015-05-20 | 深圳中兴网信科技有限公司 | Mobile terminal, conference server and conference control method |
| CN103369158B (en) * | 2013-06-18 | 2016-01-13 | 华为技术有限公司 | Party call control and relevant device and communication system |
| CN104519211B (en) * | 2013-09-29 | 2017-11-21 | 北京二六三企业通信有限公司 | Multipartite voice interaction method and TeleConference Bridge |
| CN103561183B (en) * | 2013-11-22 | 2015-11-18 | 重庆昇通科技有限公司 | A kind of videoconference merges service control system and merging thereof, fractionation control method |
| CN107483758A (en) * | 2016-06-08 | 2017-12-15 | 中兴通讯股份有限公司 | Call implementing method and device, system |
| CN112040166A (en) * | 2019-06-04 | 2020-12-04 | 中兴通讯股份有限公司 | Conference control realization method, device and server |
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| CN1889609A (en) * | 2005-06-30 | 2007-01-03 | 华为技术有限公司 | Telephone conference realizing method |
| CN101110686A (en) * | 2006-07-18 | 2008-01-23 | 中兴通讯股份有限公司 | Method implementing sub-conference using medium service apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1889609A (en) * | 2005-06-30 | 2007-01-03 | 华为技术有限公司 | Telephone conference realizing method |
| CN101110686A (en) * | 2006-07-18 | 2008-01-23 | 中兴通讯股份有限公司 | Method implementing sub-conference using medium service apparatus |
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