CN1889609A - Telephone conference realizing method - Google Patents
Telephone conference realizing method Download PDFInfo
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- CN1889609A CN1889609A CN 200510080262 CN200510080262A CN1889609A CN 1889609 A CN1889609 A CN 1889609A CN 200510080262 CN200510080262 CN 200510080262 CN 200510080262 A CN200510080262 A CN 200510080262A CN 1889609 A CN1889609 A CN 1889609A
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Abstract
本发明公开了一种电话会议实现方法，应用于下一代网络，包括：客户端向软交换或应用服务器注册后，发起会议请求，并携带会议主持人标识信息和会议成员标识信息；应用服务器建立会场，根据所述会议主持人标识信息和会议成员标识信息呼叫会议主持人号码和会议成员号码加入到会场中；并将会场和/或会议成员状态信息实时通知客户端；客户端通过用户界面实时显示出接收的状态信息。采用本发明方法，使电话会议的操作简单方便，为用户提供了丰富灵活的控制能力。
The invention discloses a method for implementing a conference call, which is applied to the next generation network. The meeting place calls the meeting host number and the meeting member number to join the meeting place according to the meeting host identification information and the meeting member identification information; and notifies the client of the status information of the venue and/or meeting members in real time; the client uses the user interface in real time Displays received status information. By adopting the method of the invention, the operation of the teleconference is simple and convenient, and rich and flexible control capabilities are provided for users.
Description
Technical Field
The invention relates to the field of communication, in particular to a method for realizing a teleconference.
Background
Conventional switches also typically support a "conference call" service, but this is usually accomplished by requiring the originator (i.e., the conference moderator) to use a relatively cumbersome set of dialing operations on the telephone.
Taking a tandem conference call as an example, the basic implementation principle is as follows: a conference initiator with conference call authority registers participants one by one through dialing, and starts a telephone conference system by dialing after the registration is finished; after the participants ring and pick up, the multi-party conference is realized.
The specific implementation steps are as follows:
registering the participants: for example, the conference initiator dials 42 × k × DN # on the telephone terminal; wherein k is a group number of the conference and takes a value of 0-3; DN is telephone number of conference participant; after the registration is successful, the initiator listens to the new service registration tone.
Starting a conference: the conference initiator dials 43 x k # on the telephone terminal; all parties participating in the conference ring at the same time, and after the calling-off, the initiator and the participants listen to the conference calling sound. Only when all registered subscribers are off-hook can a conference call take place.
Revoking a single participant: the conference initiator dials #42 k DN # on the telephone terminal and listens to the new service for muting. When the conference participant with the number of DN is cancelled, the cancelled participant is not invited to participate in the next time the conference call is summoned.
Revoking all conferees: the conference initiator dials #421 x k # on the telephone terminal and listens to the new service to silence. Canceling all conference participants invalidates the registered set of conference calls.
As can be seen from the above description, the process of the conference call mode in the prior art is tedious; when the number of conference participants is large, the workload is larger; and no good user interface is available, so that the conference initiator can conveniently control the conference and inquire the conference information.
With the increasing development of Next Generation Network (NGN) technology, new services developed based on NGN are becoming more and more abundant, and it becomes possible to implement a conference call by using strong control capabilities of devices such AS Application Servers (AS) in soft switch and intelligent Network.
Disclosure of Invention
The invention provides a teleconference implementation method which is simple and convenient to operate and flexible to control and is applied to an NGN network.
The method comprises the following steps:
a1, after registering to the soft switch or application server, the client initiates a conference request and carries the conference host identification information and the conference member identification information;
b1, the application server establishes a meeting place, calls a number of a conference host and a number of conference members to join in the meeting place according to the identification information of the conference host and the identification information of the conference members; the client side is informed of the state information of the meeting place and/or the meeting members in real time;
and C1, displaying the received state information in real time by the client through the user interface.
According to the method of the invention, if the client registers to the soft switch, the soft switch forwards the interactive message between the client and the application server.
In step a1, the client initiates a conference request through a SIP INFO message;
in step B1, the application server returns a conference initiating response to the client through the SIP INFO message or the 200 OK message, carrying the state information.
The conference initiating request at least comprises: command code, assignment identification, host number and conference member number; the conference initiating response at least comprises: command codes, the same assigned identification as in the initiating conference request, conference hall and/or conference member status information.
Before the step B1, the method further includes the step of authenticating the conference host number by the application server; if the authentication is passed, executing the step B1; otherwise, returning failure information to the client and ending the process.
The above method according to the present invention further comprises the steps of:
a client initiates a host conference ending request to an application server, and host number information is carried;
after the application server authenticates the host number, the conference is ended; and returning a response of the host to the client for ending the conference, wherein the response carries the processing result information.
The host finishes the meeting request and is carried through SIP INFO message; the moderator end conference response is carried by a SIP INFO message or a 200 OK message.
The above method according to the present invention further comprises the steps of:
a client initiates a request for inquiring the conference state to an application server;
the application server searches for the appointed number as the conference of the host, and returns a conference state query response carrying the state information of the conference, the conference attribute information and the state information of the conference members to the client.
The conference state inquiring request is carried by an SIP INFO message; the query conference state response is carried by a SIP INFO message or a 200 OK message.
The request for inquiring the conference state at least comprises a command code, an assignment identifier and a host number; the conference state inquiring response at least comprises a command code, the same assigned identification as the conference state inquiring request, the state information of the conference, the attribute information of the conference and the state information of the conference members.
The above method according to the present invention further comprises the steps of:
the client initiates a meeting participant invitation request or a meeting participant kicking request to the application server;
and the application server returns the response of the invitation meeting participants or the response of the kicking-out meeting participants to the client side, and carries the processing result information.
The request of inviting the meeting participants or the request of kicking out the meeting participants are carried by SIP INFO message; the invite conferee response or kick conferee response is carried by a SIP INFO message or a 200 OK message.
The invention has the following beneficial effects:
(1) the invention realizes the telephone conference service based on the NGN, allows the conference initiator to utilize clients in forms of WEB and the like on the PC, can send out conference requests, inquire conference states, invite participants, end the conference and other operations through actions such as mouse clicking and the like, and has convenient operation.
(2) The invention makes full use of the NGN framework, uses SIP INFO AS the main bearer among the client, the soft switch and the AS, interacts abundant conference control command and response information, and is convenient for the client to effectively control the conference; and because SIP INFO signalling expansibility is strong, can also expand more meeting control commands according to the needs of the business on this basis.
Drawings
Fig. 1 is a schematic diagram of an NGN network structure according to the method of the present invention;
FIG. 2 is a flow chart of client, soft switch and application server interaction messages in the method of the present invention;
FIG. 3 is a flow chart of the method of the present invention.
Detailed Description
The specific implementation of the method of the present invention is described by taking the case that a unified communication service (UC) user based on the NGN network implements a conference call.
Referring to fig. 1, a schematic diagram of an NGN network structure according to the method of the present invention includes: client, softswitch (SS), Application Server (AS). The client can be special client software or an embedded control on a Web page, such as an ActiveX control of a Web browser; the soft switch is used as a forwarding entity of SIP messages between the client and the application server to complete functions of call connection, service triggering, route forwarding and the like; the AS is the core of the intelligent network system for controlling and processing the intelligent service and simultaneously receives the management and control of the service management point.
In the method of the present invention, the message interaction flow chart among the client, the soft switch and the application server is shown in fig. 2, and includes: the client registers to the soft switch (if the AS provides the user registration function, the client can also directly register to the AS); after the registration is successful, the client and the AS exchange teleconference control signaling and state information through SIP INFO messages (or forwarding through soft switch).
The specific implementation flow of the method of the invention is shown in fig. 3, and comprises the following steps:
step S10, the client registers with the soft switch or AS.
Step S11, the user clicks to initiate a conference request through the client interface, and the request message is forwarded through soft switch or directly sent to AS by using sip info message. The conference initiation request message includes: the conference system may further include a command code corresponding to the conference initiating request, an assignment flag for identifying the SIP INFO message, identification information or a telephone number of a host (i.e., a conference initiator), and conference member identification information or a telephone number specified by the host (after the AS receives the host identification information and the conference member identification information, the AS may match the corresponding telephone number according to the stored correspondence between the corresponding identification information and the telephone number of the user), and may further include conference attribute information such AS the number of participants. The information content of the initiating conference request message is contained in the SIP INFO message body in XML format.
The following is an example of a SIP message that initiates a conference request:
INFO sip:96066@huawei.com SIP/2.0
Via:SIP/2.0/UDP kton.bell-tel.com
From:6660000@huawei.com;tag=xyzygg
To:96066@huawei.com
Call-ID:3298420296@huawei.com
CSeq:1 INFO
Subject:Client Request
Content-Type:text/xml
Content-Length:(…)
<content>
<command-code>2001</command-code>
<assignment-id>1</assignment-id>
<chairman>6660000/chairman>
<password>234535</password>
< subject > meeting subject >
<attendees>
<attendee number=”6620001”/>
<attendee number=”6620002”/>
<attendee number=”6620003”/>
</attendees>
<conf-size>10</conf-size>
</content>
Wherein:
command-code: command code, defined here 2001 to represent initiating a conference request;
assignment-id: assigning identification, namely initiating SIP INFO message identification of the conference request, wherein the corresponding response also uses the same assigning identification for correspondence;
chairman: the UC number of the moderator;
passage: a password corresponding to the UC number of the host;
subject; a conference topic entered by a host;
attribute number: when a host creates a conference, numbers of participants are invited, and the numbers comprise zero and one or more participants;
conf-size: the size of the meeting place is the number of the participants.
Step S12, the AS authenticates the moderator according to the UC number of the moderator received or matched, if the authentication is not passed, the step S17 is carried out, and the AS finishes the teleconference; if the host authentication is passed, the following steps are continued.
Step S13, AS sets up meeting place according to the request of initiating meeting, controls soft switch to call the meeting host and meeting members into the meeting place, and sends meeting request response message. The conference request response message is forwarded via a softswitch or sent directly to the client via a sip info message. The conference request response message contains the corresponding command code, the same assigned identification as in the conference request, the meeting place and/or conference member status information. The information content in the response message is contained in the SIP INFO message body in XML format.
The following is an example of a SIP message for the venue creation state:
INFO sip:6660000@huawei.com SIP/2.0
Via:SIP/2.0/UDP kton.bell-tel.com
From:96066@huawei.com;tag=xyzygg
To:6660000@huawei.com
Call-ID:3298420296@huawei.com
CSeq:1 INFO
Subject:Client Request
Content-Type:text/xml
Content-Length:(…)
<content>
<command-code>2002</command-code>
<assignment-id>1</assignment-id>
<result>1</result>
<conf-id>11111<conf-id>
</content>
wherein:
command-code: command code, here defined 2002 represents reporting meeting place creation status in the meeting request response;
assignment-id, assignment identification, SIP INFO message identification of the current conference request and assignment identification in the call request are kept consistent for corresponding;
result, such as a meeting place is being established, a meeting place is successfully created and is calling other meeting participants, a system exception, etc.;
conf-ID, meeting place ID, if the meeting place is successfully created, returning the identification of the meeting place for carrying out the following operation on the meeting place.
The following is an example of a SIP message reporting the status of a participant:
<content>
<command-code>1004</command-code>
<assignment-id>1</assignment-id>
<attendees>
<attendee number=”6620001”status=”0”/>
<attendee number=”6620002”status=”0”/>
<attendee number=”6620003”status=”0”/>
</attendees>
</content>
wherein,
command-code, here defined 1004 to represent reporting of participant status in a conference request response;
assignment-id, assignment identification, SIP INFO message identification of the current conference request and assignment identification in the call request are kept consistent for corresponding;
attribute status, participant status value, such as successful conference joining, called entering meeting place, called busy, called no answer, etc.
And the client analyzes the response message after receiving the response message, and displays the current conference call state on a client interface.
Step S14, after the teleconference is established, the host can control the teleconference according to the requirement, and the control mode comprises the following steps:
the first method is as follows: the moderator queries the conference status.
The host initiates a request for inquiring the conference state through the client, and the request message is forwarded by soft switch or directly sent to AS by adopting SIP INFO message. The request message contains the corresponding command code, SIP INFO assignment identification of the conference request, identification information of the host or UC number and password and other information. The contents of the inquiry conference state request message are contained in the SIP INFO message body in an XML format.
The second method comprises the following steps: the moderator invites one or more users to join the conference.
The moderator issues a request through the client to invite others to join the conference, which request message is forwarded over the softswitch or sent directly to the AS using a sip info message. The request message contains the command code corresponding to the invitation user to join the conference, the SIP INFO message assignment identification of the current conference request, the conference place identification, the identification information of the host or the UC number and the password, the identification information of the invitee or the UC number or the number list and other information. The request message content is contained in the SIP INFO message body in XML format.
The third method comprises the following steps: the host kicks out the participants.
The moderator sends a request for kicking out the conference participants through the client, and the request message is forwarded through the SIP INFO message through the soft switch or directly sent to the AS. The request message contains a command code corresponding to the request of the kicked-out conference participant, an SIP INFO message assignment identification of the conference request, a conference identification, identification information or UC number and password of a host, identification information or UC number of the kicked-out participant and other information. The request message content is contained in the SIP INFO message body in XML format.
Step S15, AS receives the above requests from client, first authenticates the host, if the authentication is not passed, then does not respond to the request; and if the authentication is passed, responding to the request of the client and returning a corresponding response message to the client.
For the conference inquiring request, returning a conference state inquiring response message, which comprises the following steps: the AS searches the appointed identification information or UC number AS the host conference, returns the response message through SIP INFO or SIP 200 OK, and transmits or directly sends to the client through soft switch, the response message includes: and inquiring a command code corresponding to the conference state response, assigning an identifier, meeting place state information (such as successful creation, unsuccessful creation, ending and creating the conference and the like), conference information (conference identifier and the like), and conferee information (numbers and states of conferees and the like). The response message content is contained in the SIP INFO message body in XML format. And the client analyzes the response message after receiving the response message, and displays the query result on the client interface.
For the request of the invitation meeting participant, returning a response message of the invitation meeting participant, comprising the following steps: the AS calls the invitee into the meeting place through the soft switch, returns a response message through the SIP INFO or the SIP 200 OK, and forwards or directly sends the response message to the client through the soft switch, wherein the response message comprises a command code corresponding to the invitation meeting party response, an assigned identification, an invitation result (such AS system abnormity, no called number, busy called, no response of the called, unavailable access of the called and the like) and information (number, state and the like) of the invitee. The response message content is contained in the SIP INFO message body in XML format. Because the host can invite multiple persons to join the meeting place simultaneously in one request, and the off-hook response time of each invitee is different, each invitee returns one response when returning the result, and the AS returns the state of the invitee to the client. And the client analyzes the response message after receiving the response message and invites a result on a client interface.
Returning a response message of the participant who kicks out to the request of the participant who kicks out, comprising: the AS disconnects the conferee with the designated UC number, returns a response message through SIP INFO or SIP 200 OK, forwards the response message through the soft switch or directly sends the response message to the client, and the response message comprises a command code corresponding to the response of the kicked conferee, an assigned identifier and a kicked result (such AS successful kicking, abnormal system, nonexistence of conference identifier and the like). The response message content is contained in the SIP INFO message body in XML format. And the client analyzes the response message after receiving the response message, and displays a kicking result on a client interface.
In step S16, the host may initiate a request for the host to end the conference through the client, and the request message is forwarded through the SIP INFO message via the soft switch or directly sent to the AS. The request message contains a command code corresponding to the conference ending request, an SIP INFO message assignment identifier of the current conference request, a conference identifier, identifier information of a host or information such as a UC number and a password. The contents of the originating moderator's end of conference request message are contained in the SIP INFO message body in XML format. If the client initiates a request for the host to end the conference, the AS authenticates the identity of the host and then executes the step S17; otherwise, go to step S14, the host continues to control the initiated conference.
And step S17, the AS disconnects all the participants, releases the meeting place resources and sends a meeting ending response message. The response message is forwarded via the softswitch or sent directly to the client via a SIP INFO message. The response message contains a command code corresponding to the conference end response, the same assigned identifier as that in the conference initiating request, and conference end result information (such as success in ending the conference, absence of the conference identifier, etc.). The response message content is contained in the SIP INFO message body in XML format. And the client analyzes the response message after receiving the response message, and displays the conference ending information on the client interface.
According to the above description, the invention is based on the NGN network architecture, realizes the telephone conference service through the client, the soft switch and the application server, can allow the conference initiator to utilize WEB and other forms on the PC, can send out the conference request, inquire the conference state, invite the participator, finish the conference and other operations through mouse click and other actions, and is convenient to operate.
The request/response message among the client, the soft switch and the AS uses the SIP INFO message AS a main bearer, and can expand more conference control commands according to the service requirement by utilizing the characteristic of strong expansibility of SIP signaling.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (12)
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|---|---|---|---|
| CN200510080262A CN1889609B (en) | 2005-06-30 | 2005-06-30 | A Method for Implementing Teleconferencing |
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| CN1889609B CN1889609B (en) | 2010-05-05 |
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| WO2011000145A1 (en) * | 2009-06-30 | 2011-01-06 | 上海贝尔股份有限公司 | Method for conference calling |
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| CN111740984A (en) * | 2020-06-18 | 2020-10-02 | 北京字节跳动网络技术有限公司 | Communication method and device and electronic equipment |
| US11757948B2 (en) | 2020-06-18 | 2023-09-12 | Douyin Vision Co., Ltd. | Communication method and apparatus, and electronic device |
| CN112291216A (en) * | 2020-10-19 | 2021-01-29 | 北京字跳网络技术有限公司 | Communication method and device and electronic equipment |
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