CN101931618A - SIP protocol extension based conversation service realizing method - Google Patents
SIP protocol extension based conversation service realizing method Download PDFInfo
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- CN101931618A CN101931618A CN 201010125988 CN201010125988A CN101931618A CN 101931618 A CN101931618 A CN 101931618A CN 201010125988 CN201010125988 CN 201010125988 CN 201010125988 A CN201010125988 A CN 201010125988A CN 101931618 A CN101931618 A CN 101931618A
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Abstract
The invention relates to an SIP realizing method for service logical combination, which performs override, break-down, forced connection and other special dispatching operations on one-party or multi-party conversation in a communication dispatching system. In the method, action operation of the conversion is firstly divided into three basic actions, namely addition, deletion and mute, by proper abstract larger-granularity division, and all service requirements of the conversation, including mute, switching, picking-up, override, break-down, forced connection and other operations, can be realized through the logical combination of the three basic actions, so that the high reusability can be realized by service logic, the development efficiency of new service logics can be improved, and the development cost can be reduced.
Description
Technical field
The invention belongs to communication technical field, relate to a side or Multi-Party Conference in the communication scheduling system (being not limited only to dispatching patcher), intrusion is tolled breakdown, the SIP implementation method of a kind of service logic combination of special scheduling operation such as strong cohesiveness.
Background technology
In traditional circuit switching, the every function or the business that offer the user are all directly relevant with switch, professional and control is all finished by switch, the new business that required business that provides of switch and switch provide all need be finished at each telephone net node, the hardware platform sealing is unfavorable for professional development and application.Nowadays need business is separated with control, will call out control and separate with carrying, this notion of next generation network (NGN) just occurred.Next generation network adopts the open distributed network architecture, network is divided into Network layer, core key-course, transmission Access Layer and Media layer, the main design philosophy of NGN is distributed structure, just operation layer, key-course are separated with transport layer, Access Layer, the agreement by standard between each entity connects and communicates by letter.
Soft switch is one of nucleus equipment of network evolution and next-generation packet network, mainly is made up of Softswitch, SGW, media gateway, application server etc.It is independent of the transmission network, mainly finishes major functions such as calling out control, resource allocation, protocol processes, route, authentication, charging, all business that can provide the available circuit switch to provide to the user simultaneously, and provide programmability to the third party.
Softswitch technology is a kind of functional entity, and the calling control and the connection control function of the business with real-time requirement is provided for next generation network.Next generation network is faced with the challenge how fused business is provided, and fused business provides needs a kind of simple be suitable for but powerful communication protocol is set up and dismantling call easily and flexibly in the process.Soft switch thought has been drawn the length of many families such as IP, ATM, IN and TDM, the architectural framework that formation layering, standard-sized sheet are put, and as the developing direction of next generation network, soft switch has not only realized the fusion of network, the more important thing is and has realized professional fusion.
The SIP(session initiation protocol) is a kind of agreement of calling out the control of control and signaling flexibly, can realizes control the next generation network fused business.It is a kind of application layer control protocol that is used for setting up, revising and stop in IP network Multimedia session.
SIP is an application layer protocol, can be used for setting up, changes and termination Multimedia session or calling, and can dynamically adjust and revise session attribute.Session Initiation Protocol mainly is made of the two-level network entity: client computer (being also referred to as the user agent) and server.Voip call based on Session Initiation Protocol is initiated by client computer, ends at server end.It can well satisfy and sets up a manageable fusion, efficient, the business platform that can constantly expand.SIP has many-sided advantage aspect professional flexibly, conveniently providing:
1, the expandability of agreement.If the expansion of the expansion message of agreement can be expanded type of message, also can expand message header, also can expand message body.
2, Kai Fang professional production environment.The business of SIP network provides mainly and is finished by Proxy Server, generating a business is exactly to design a service logic, thereby a specific message is controlled, or message request is made corresponding response, this can be programmed by any general program language and realize.
3, SIP supports another name mapping, redirect services, ISDN and IN business, it by agency and redirect request user current location with the support personal mobility.Can create multi-party conversation, support the gateway function between PSTN and the Internet telephony.
In communication scheduling system, two side's sessions may need the MPTY that becomes at any time, as broadcasting, monitor meeting etc.; Also might carry out quiet, intrusion, toll breakdown according to different service needed, operations such as strong cohesiveness, these special demands all do not have corresponding signaling or method to realize above-mentioned function in the SIP standard and in the relevant industry standard specification.Increase or change the support of this type of function as need in system, then need update service logic, the workload complexity is loaded down with trivial details, and the business logic modules that realizes reusable not.
Summary of the invention
Technical problem to be solved by this invention provides a kind of session service implementation method based on Session Initiation Protocol expansion, realizes not having in the existing SIP standard that corresponding signaling or method realize as quiet, intrusion, toll breakdown the business function that strong cohesiveness etc. are special.
For solving the problems of the technologies described above, the technical scheme design of a kind of session service implementation method based on the Session Initiation Protocol expansion that the present invention proposes is, all session service logics carried out abstract coarsegrain divide, and is decomposed into the combination of the self-defining basic act of three classes, that is:
1. add behavior, abbreviate the A behavior as: the behavior, pattern was for adding the opposing party in certain session;
2. delete behavior, abbreviate the D behavior as: the behavior, pattern was for deleting a side in certain session;
3. quiet behavior is called the M behavior: the behavior, pattern was for to make a side quiet in certain session.
The Refer method is the extended method to Session Initiation Protocol, and a lot of application the such as comprising calling transfer can be provided.The third party of request can utilize Refer message and recipient to set up session.For example, A and B converse, and decision B needs and C engages in the dialogue, and the Refer that A makes its user agent (UA) send the information that comprises C asks the user agent to B, will use these information and C to set up conversation after B accepts, and the result is returned to A.The Refer request comprises a concrete refer-to header field value.The refer-to header field can only occur in Refer message.In this header field, provide a URI to use for follow-up flow process.
Though the mode of abstract behavior has been brought facility, it may be noted that the object (which user) of behavior effect and the position (which session) of object behavior effect thereof.In the present invention, propose first refer message expanded and realize various complicated service application operatings it being decomposed into limited the operation behavior that coarsegrain is basic, make operation more succinctly transparent.Wherein, utilize refer-to header field in the Refer message to specify the object of behavior effect, i.e. targeted customer; Utilize the call-id header field in the Refer message to come the position of appointed object behavior effect, i.e. target session.
Because adding, deletion, multiple business application operating such as quiet are provided, and original Refer message can not be distinguished.In order to identify the differentiation signaling manipulation, needing increases new content to refer-to header field value.Therefore in the present invention, in refer message, add A#, D#, M# and represent respectively this user is carried out adding behavior, deletion behavior or quiet behavior.Preferably, in the refer-to of refer message header field value, promptly add A#, D#, M# before user's the URI.For example:
Refer-To A#02@231 represents to make a call to server, and calling terminal 02 adds session;
Refer-To D#03@231 represents that announcement server hangs up 03 session;
Refer-To M#02@231 represents that announcement server carries out quiet operation to 02, no longer to 02 transferring voice Media Stream.
At the communication system based on SIP, effective combination of the abstract behavior that the complicated service logic can be by basic coarsegrain realizes.Following table definition the combined method of service logic in the dispatching patcher.
| Function | Functional description | The behavior combination | Remarks |
| Conference Calling | Set up conference call, add conference member. | A | The personnel that conference participation called out by a plurality of A behaviors add to come in. |
| Group call | Set up the group call conversation, add the group call member. | A | The personnel that will participate in group call by a plurality of A behaviors add to come in. |
| Broadcast ﹠ call | Set up the broadcasting conversation, add being broadcasted the member. | A+M | The personnel that will be participated in broadcasting by a plurality of A behaviors add to come in; And make the personnel outside the caller quiet with the M behavior. |
| Call out switching | The opposing party inserts when conversing, and call peer is in held state automatically,, import corresponding Subscriber Number by a certain individual calling button or at dial, call out new user. | A | By the A behavior side of switching is added current sessions, being hung up by the side of switching gets final product. |
| Call pick up | Voice terminal A in the voice terminal device B calling system, A just is in ring unanswered's state in ring, and operating desk replaces A and B to set up conversation. | A+D | By the A behavior we are added by the pickup session, and hang by pickup side with the D behavior and to get final product. |
| Force quiet | Shield the voice of certain side in certain road conversation, make its other party can't hear this side's sound. | M | A certain side is quiet in will being conversed by the M behavior. |
| Pressure is chipped in | New incoming call is arranged when operating desk is busy, and query manipulation platform operating state is set up conversation, and former call peer is in held state automatically, and hears the maintenance sound. | A | By the A behavior we are added by the intrusion session. |
| Words are torn in pressure open | End two sides' conversation by force, and voice terminal device is heard busy tone. | D | To be rejected the session that participates in by the side of tolling breakdown by the D behavior. |
| Pressure is answered | Operating desk is taken over the conversation power of A by force, and the A voice terminal device is heard busy tone, operating desk and B voice terminal device normal talking | A+D | By the A behavior we are added by the strong cohesiveness session, and hang by strong cohesiveness side with the D behavior. |
| Lawful Interception | Dispatching desk is monitored two sides' conversation, calling party and called party's normal talking. | A+M | To supervise the hearer by the A behavior and add session, and make it quiet with the M behavior. |
In sum, the present invention propose first by the SIP signaling realize in the session service intrusion, toll breakdown, complex operations such as monitoring, with multiple division of operations is the basic act operation of three kinds of coarsegrains, the basic act operative combination of three kinds of coarsegrains can realize comprising all business of particular service, need not to redesign again the service logic flow process, realized the effectively multiplexing of basic act, simplified the Session Initiation Protocol realization flow, promote the autgmentability of service logic, reduced exploitation new business logic working amount.
Description of drawings
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is further described in detail.
Fig. 1 is quiet operation signaling process.
Fig. 2 is intrusion operation signaling process.
Fig. 3 is strong cohesiveness operation signaling process.
Fig. 4 is for tolling breakdown the operation signaling process.
Embodiment
(1) quiet operation
Following session flow process is that operating desk is initiated Conference Calling, treats calling terminal 02,03 behind the server response, and is 02 quiet to terminal afterwards, terminal 03 is played except that meeting last closing session again.
The signaling explanation:
1. INVITE C$1234@231 announcement server, the signaling of ensuing band C$1234 are the meeting operation.
2. Refer-To A#02@231, Refer-To A#03@231 initiate Conference Calling to server, calling terminal 02,03.
3. Refer-To M#02@231 announcement server carries out quiet operation (no longer to 02 transferring voice Media Stream) to 02.
4. Refer-To D#03@231 announcement server is hung up 03 session.
5. when initiating Conference Calling, can return 180 Ringing to operating desk when first terminal ring, can return 200 OK to operating desk when first terminal is answered, other situation is not returned this two signalings.
The physical signaling packet capturing:
1. A# call-conference member
2. M# is quiet to conference member
3. D# deletes conference member
(2) intrusion operation
For example when two Founders in when conversation, if the higher third party call of a priority side wherein then will carry out the intrusion operation, specific operation process at this moment is as follows:
The session flow process be terminal 02 to server calling terminal 03, terminal 03 is answered, the two normal talking.Afterwards, operating desk is initiated the intrusion operation to server, 01 Add message of terminal, and the 02 place session of intrusion terminal, server receives this request, forms Three-Way Calling.
The signaling explanation:
1. Refer 02@231, Refer-To A#01@231 announcement server add terminal 02 place session with 01 and form Three-Way Calling.
2. server only needs then the voice flow audio mixing to be sent to each side respectively and get final product to 01 INVITE to this Refer.
The physical signaling packet capturing:
A# adds session
(3) strong cohesiveness operation
For example when a party call the opposing party, at this moment the called party ring unanswered just needs operating desk to carry out the strong cohesiveness operation to server, converses with calling party, guarantees that conversation is normal.Idiographic flow is as follows:
The session flow process is terminal 02 calling terminal 03,03 ring ring unanswered, and operating desk is initiated strong cohesiveness 03 operation to server, replaces 03 and 02 conversation, and 03 finishes ring, operating desk and terminal 02 normal talking.
The signaling explanation:
1. Refer 03@231, Refer-To A#01@231 announcement server adds 03 place session with 01, promptly with terminal 02 conversation.
2. Refer 03@231, Refer-To D#03@231 announcement server is hung up 03.
The physical signaling packet capturing:
1. A# adds session with operating desk
2. D# is hung up the ring terminal
(4) toll breakdown operation
Fig. 4 tolls breakdown the operation signaling process, and operating process is that terminal 02 calling terminal 03,03 is answered, the two normal talking, and operating desk initiates to toll breakdown 02 place session operation to server, and operating desk is directly hung up 02,03 after receiving this signaling.
The signaling explanation:
1. Refer 02@231, Refer-To D#02@231 announcement server is hung up 02 place session.
The physical signaling packet capturing:
D# deletes the place session
In sum, the present invention is directed to and realize in the existing communication that these particular service logics have proposed a kind of implementation of innovation, above-mentioned multiple operation is realized according to the logical partitioning combination, expanded the type of message in the Session Initiation Protocol, simplified signaling process, the convenient expansion of service logic.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. session service implementation method based on Session Initiation Protocol expansion is characterized in that may further comprise the steps:
The Refer message field that will be used for Session Initiation Protocol expansion is carried out the assignment definition, comprising: the refer-to header field is defined as the object of appointment behavior effect, i.e. targeted customer; The call-id header field is defined as the position of object behavior effect, i.e. target session; In Refer message, add appointment behavior identifier, comprise adding behavior identifier (A#), deletion behavior identifier (D#) or quiet behavior identifier (M#), represent respectively described targeted customer is carried out adding behavior, deletion behavior or quiet behavior;
Realize Conference Calling Function, group call function by a plurality of adding behaviors of Refer message call.
2. the session service implementation method based on the Session Initiation Protocol expansion according to claim 1 is characterized in that, it realizes broadcast call functions by a plurality of addings of Refer message call and quiet behavior.
3. the session service implementation method based on the Session Initiation Protocol expansion according to claim 1 is characterized in that, it realizes calling out signaling transfer point by adding behavior of Refer message call.
4. the session service implementation method based on the Session Initiation Protocol expansion according to claim 1 is characterized in that, it realizes the call pick up function by adding behavior of Refer message call and a deletion behavior.
5. the session service implementation method based on the Session Initiation Protocol expansion according to claim 3 is characterized in that, it realizes forcing mute function by quiet behavior of Refer message call.
6. according to the session service implementation method based on the Session Initiation Protocol expansion of claim 1, it is characterized in that it realizes forcing to chip in function by adding behavior of Refer message call.
7. according to the session service implementation method based on the Session Initiation Protocol expansion of claim 1, it is characterized in that it realizes forcing to tear open the words function by deletion behavior of Refer message call.
8. according to the session service implementation method based on the Session Initiation Protocol expansion of claim 1, it is characterized in that it realizes forcing to answer function by adding behavior of Refer message call and a deletion behavior.
9. according to the session service implementation method based on the Session Initiation Protocol expansion of claim 1, it is characterized in that it realizes the Lawful Interception function by adding behavior of Refer message call and a quiet behavior.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010125988 CN101931618B (en) | 2010-03-17 | 2010-03-17 | SIP protocol extension based conversation service realizing method |
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| CN 201010125988 CN101931618B (en) | 2010-03-17 | 2010-03-17 | SIP protocol extension based conversation service realizing method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102833425A (en) * | 2012-09-10 | 2012-12-19 | 浙江省电力公司 | Parallel position method |
| CN102843384A (en) * | 2012-09-18 | 2012-12-26 | 浙江省电力公司 | Forcibly detaching method |
| CN107453935A (en) * | 2016-05-31 | 2017-12-08 | 华为技术有限公司 | Reclaim the method, apparatus and conference system of conferencing resource |
| CN110073641A (en) * | 2016-12-23 | 2019-07-30 | 高通股份有限公司 | Technology and equipment for the call treatment during user equipment ringing condition |
| CN110505070A (en) * | 2019-08-26 | 2019-11-26 | 中国联合网络通信集团有限公司 | A kind of method for building up and device of tripartite's session |
| CN111491007A (en) * | 2020-03-04 | 2020-08-04 | 北京中盾安全技术开发公司 | SIP center signaling control service load balancing method and load balancer thereof |
| CN111901345A (en) * | 2020-07-29 | 2020-11-06 | 厦门亿联网络技术股份有限公司 | Method, device, equipment and storage medium for realizing voice call |
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| WO2005025108A2 (en) * | 2003-08-29 | 2005-03-17 | Motorola, Inc. , A Corporation Of The State Of Delaware | Method and apparatus in a wireless communication system for facilitating a handoff |
| CN1980225A (en) * | 2005-12-03 | 2007-06-13 | 华为技术有限公司 | Method for realizing the third-part control bussiness |
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2010
- 2010-03-17 CN CN 201010125988 patent/CN101931618B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2005025108A2 (en) * | 2003-08-29 | 2005-03-17 | Motorola, Inc. , A Corporation Of The State Of Delaware | Method and apparatus in a wireless communication system for facilitating a handoff |
| CN1980225A (en) * | 2005-12-03 | 2007-06-13 | 华为技术有限公司 | Method for realizing the third-part control bussiness |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102833425A (en) * | 2012-09-10 | 2012-12-19 | 浙江省电力公司 | Parallel position method |
| CN102833425B (en) * | 2012-09-10 | 2016-08-03 | 浙江省电力公司 | A kind of also seat method |
| CN102843384A (en) * | 2012-09-18 | 2012-12-26 | 浙江省电力公司 | Forcibly detaching method |
| CN107453935A (en) * | 2016-05-31 | 2017-12-08 | 华为技术有限公司 | Reclaim the method, apparatus and conference system of conferencing resource |
| CN110073641A (en) * | 2016-12-23 | 2019-07-30 | 高通股份有限公司 | Technology and equipment for the call treatment during user equipment ringing condition |
| CN110505070A (en) * | 2019-08-26 | 2019-11-26 | 中国联合网络通信集团有限公司 | A kind of method for building up and device of tripartite's session |
| CN111491007A (en) * | 2020-03-04 | 2020-08-04 | 北京中盾安全技术开发公司 | SIP center signaling control service load balancing method and load balancer thereof |
| CN111491007B (en) * | 2020-03-04 | 2023-08-18 | 北京中盾安全技术开发公司 | SIP center signaling control service load balancing method and load balancing device thereof |
| CN111901345A (en) * | 2020-07-29 | 2020-11-06 | 厦门亿联网络技术股份有限公司 | Method, device, equipment and storage medium for realizing voice call |
| CN111901345B (en) * | 2020-07-29 | 2023-04-28 | 厦门亿联网络技术股份有限公司 | Method, device, equipment and storage medium for realizing voice call |
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| CN101931618B (en) | 2013-02-20 |
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