CN104954373A - Unified communication active SIP (Session Initiation Protocol) calling method and system - Google Patents

Unified communication active SIP (Session Initiation Protocol) calling method and system Download PDF

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Publication number
CN104954373A
CN104954373A CN201510325796.2A CN201510325796A CN104954373A CN 104954373 A CN104954373 A CN 104954373A CN 201510325796 A CN201510325796 A CN 201510325796A CN 104954373 A CN104954373 A CN 104954373A
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sip
server
customer end
calls customer
calling
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CN104954373B (en
Inventor
颜君志
吴晓东
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GUANGDONG TELEPOWER COMMUNICATION CO Ltd
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GUANGDONG TELEPOWER COMMUNICATION CO Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management

Abstract

The invention relates to a unified communication active SIP (Session Initiation Protocol) calling method and a system. The unified communication active SIP calling method comprises the following steps of sending an SIP calling request to an SIP server; receiving an SIP calling response sent by the SIP server. The linkage information in the SIP calling response is provided by an IM (Instant Messaging) server instead of the SIP server, so that the linkage information has no need to be updated through periodic refresh by the SIP server, and the burden of the SIP server is reduced; meanwhile, a client end has no need to send a linkage update instruction periodically, so that the client end resource is saved, and the performance of the client end is further improved; in addition, the IM server only needs to update the linkage information saved in the IM server when the client end carries out network switching; finally, the SIP server in the unified communication active SIP calling method and the system has no need to update the linkage information but directly calls the linkage information in the IM server. In conclusion, the whole system has good performance.

Description

Unified Communication is SIP method of calling and system initiatively
Technical field
The present invention relates to the communications field, particularly relate to a kind of Unified Communication initiatively SIP method of calling and system.
Background technology
SIP (Session Initiation Protocol, session initiation protocol) is the multimedia communication protocol formulated by IETF (Internet Engineering Task Force, internet engineering task group).SIP is a kind of text based application layer control protocol, for creating, revising and discharge the session of one or more participant, be widely used in CS (Circuit Switched, circuit switching), NGN (Next Generation Network, next generation network) and IMS (IP Multimedia Subsystem, IP Multimedia System) network in.
SIP login mechanism allows user agent to registrar identification oneself, and registrar is the equipment for consumer positioning (being specified by recording address).For meeting security requirement, sip server does not allow do not have the user registered to make a call.SIP registration has a refresh cycle, and UA can keep login state to sip server or upgrade log-on message (as: the IP address of UA changes) by timed sending registration message
Unified Communication (Unified Communication) refers to the new traffic pattern that computer technology and conventional communication techniques are combined together, as a solution and application, its core content is: allow people no matter any time, any place, can any equipment, any network be passed through, carry out the free communication obtaining data, image and sound.That is, the information types such as voice, fax, Email, mobile short-message, multimedia and data are integrated by unified communications, thus bring the freedom of selection and the lifting of efficiency for people.It is different from interconnecting of network level, but the fusion of the application that people-oriented is with collaborative.
For mobile phone users, there is uncertainty in mobile network, and such as network switches, and causes client ip address to change, and the registration refresh cycle does not arrive, and the log-on message causing sip server to be preserved is invalid.SIP calling cannot be initiated in the invalid stage client of registration.
For the problem that SIP mobile client network switches, can adopt the method shortening the registration refresh cycle, the every 30s of such as client (cycle of acquiescence is 3600s) sends and once registers refreshing, the log-on message of the client that so just can upgrade in time.Even if client network switches like this, also can re-register successfully on new network within the regular hour, ensure that client can make a call, ensure the availability of client.
But adopt the method mobile client can send registration refresh message frequently, can consume the resource of mobile terminal, as Internet resources, electricity and system resource, cause the mobile terminal standby time short, traffic consumes is fast, and systematic function is poor.
Summary of the invention
Based on this, be necessary Unified Communication initiatively SIP method of calling and the system providing a kind of systematic function good.
A kind of Unified Communication initiatively SIP method of calling, comprises step:
SIP call request is sent to sip server; Described SIP call request comprises identify label and the source address of calls customer end;
Receive the SIP call that described sip server sends; Described SIP call comprises whether allowing calls customer end initiation SIP calling; Describedly whether allow calls customer end to initiate SIP calling whether to find by described sip server link information that the SIP log-on message corresponding with described identify label and/or sip server obtain from IM server and/or described source address is determined; Described link information comprises connection status and/or the link address information of described calls customer end.
A kind of Unified Communication initiatively SIP method of calling, comprises step:
Receive the SIP call request that calls customer end sends, described SIP call request comprises identify label and the source address of described calls customer end;
According to described identify label, in SIP log-on message, search the SIP log-on message corresponding with described identify label;
According to whether finding link information that the SIP log-on message corresponding with described identify label and/or sip server obtain from IM server and/or described source address sends SIP call to described calls customer end; Described SIP call comprises whether allowing calls customer end initiation SIP calling; Describedly whether allow calls customer end to initiate SIP calling whether to find by described sip server link information that the SIP log-on message corresponding with described identify label and/or described sip server obtain from described IM server and/or described source address is determined.
A kind of Unified Communication initiatively SIP calling system, comprising:
Request sending module, for sending SIP call request to sip server; Described SIP call request comprises identify label and the source address of calls customer end;
Response receiver module, for receiving the SIP call that described sip server sends; Described SIP call comprises whether allowing calls customer end initiation SIP calling; Describedly whether allow calls customer end to initiate SIP calling whether to find by described sip server link information that the SIP log-on message corresponding with described identify label and/or sip server obtain from IM server and/or described source address is determined; Described link information comprises connection status and/or the link address information of described calls customer end.
A kind of Unified Communication initiatively SIP calling system, comprising:
Request receiving module, for receiving the SIP call request that calls customer end sends; Described SIP call request comprises identify label and the source address of described calls customer end;
Log-on message searches module, for according to described identify label, searches the SIP log-on message corresponding with described identify label in SIP log-on message;
Response sending module, for according to whether finding link information that the SIP log-on message corresponding with described identify label and/or sip server obtain from IM server and/or described source address sends SIP call to described calls customer end; Described SIP call comprises whether allowing calls customer end initiation SIP calling; Describedly whether allow calls customer end to initiate SIP calling whether to find by described sip server link information that the SIP log-on message corresponding with described identify label and/or described sip server obtain from described IM server and/or described source address is determined.
Above-mentioned Unified Communication is SIP method of calling and system initiatively, because the link information in SIP call is provided by IM server, instead of to be provided by sip server, do not need sip server to carry out periodic refresh to upgrade link information, reduce the burden of sip server; Client does not need periodically to send to connect more newer command yet simultaneously, has saved client resource, and then has improved the performance of client; In addition, IM server only needs, when client carries out network switching, just to upgrade the link information stored in IM server; Finally, IM server and sip server are two kinds of servers in unified communications, originally the renewal carrying out link information is all needed, and the above-mentioned Unified Communication sip server initiatively in SIP method of calling and system does not need the renewal carrying out link information, directly call the link information in IM server.In sum, whole system performance is good.
Accompanying drawing explanation
Fig. 1 is a kind of flow chart of Unified Communication active SIP method of calling of execution mode;
Fig. 2 is the interaction flow schematic diagram of client and server in a concrete example;
Fig. 3 is the flow chart of the Unified Communication active SIP method of calling of another kind of execution mode;
Fig. 4 is a kind of structure chart of Unified Communication active SIP calling system of execution mode;
Fig. 5 is the structure chart of the Unified Communication active SIP calling system of another kind of execution mode.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein "and/or" comprises arbitrary and all combinations of one or more relevant Listed Items.
As depicted in figs. 1 and 2, a kind of Unified Communication initiatively SIP method of calling of execution mode, the method performs on calls customer end.
A kind of Unified Communication initiatively SIP method of calling, comprises step:
S110, sends SIP call request to sip server; SIP call request comprises identify label and the source address of calls customer end.
Calls customer end can send SIP call request to sip server at any time.Identify label can be SIP phone number, also can be other mark, as long as can in sip server and IM server unique identification client.Calls customer end is the client initiating SIP calling, can be any one client.
S150, receives the SIP call that sip server sends; SIP call comprises whether allowing calls customer end initiation SIP calling; Whether allow calls customer end to initiate SIP calling and whether find by sip server link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address is determined; Link information comprises connection status and/or the link address information of calls customer end.
If client does not complete registration, then do not store the SIP log-on message corresponding with the identify label of this client in sip server, sip server can not find the SIP log-on message corresponding with the identify label of this client.Otherwise store the SIP log-on message corresponding with the identify label of this client in sip server, sip server can find the SIP log-on message corresponding with the identify label of this client.SIP log-on message comprises identify label and source address.
If sip server finds the SIP log-on message corresponding with identify label, then sip server obtains link information from IM server.Link information comprises connection status and/or link address information.
Connection status and the link address information of all clients (comprising calls customer end) is stored in IM server.When the link information of client changes, information updating order can be sent to IM server.Particularly, when client logs in, the logon information that IM server receives client sends, and connection status is set to online.If carry out network switching after client logs in, send link address information updating order to IM server; IM server upgrades link address information after receiving link address information updating order.When client rolls off the production line, the offline information that IM server receives client sends, and connection status is set to not online.
When sip server does not find the SIP log-on message corresponding with identify label, or the connection status of the calls customer end that sip server gets from IM server is not for online, or when the source address of the link address information and the calls customer end that obtain from IM server is inconsistent, the whether permission calls customer end initiation SIP request in SIP call is not for allow.
When sip server finds the SIP log-on message corresponding with identify label, and the connection status of calls customer end that sip server gets from IM server is online, and time consistent with the source address of calls customer end from the link address information of IM server acquisition, the whether permission calls customer end in SIP call initiates SIP request for allowing.
Above-mentioned Unified Communication is SIP method of calling initiatively, and client sends SIP call request to sip server; And receive the SIP call of sip server transmission; SIP call comprises whether allowing calls customer end initiation SIP calling; Whether allow calls customer end to initiate SIP calling and whether find by sip server link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address is determined.Because the link information in the SIP call that the method receives is provided by IM server, instead of provided by sip server, do not need sip server to carry out periodic refresh to upgrade link information, reduce the burden of sip server; Client does not need periodically to send to connect more newer command yet simultaneously, has saved client resource, and then has improved the performance of client; In addition, IM server only needs, when client carries out network switching, just to upgrade the link information stored in IM server; Finally, IM server and sip server are two kinds of servers in unified communications, originally all need the renewal carrying out link information, and the sip server in above-mentioned Unified Communication active SIP method of calling does not need the renewal carrying out link information, directly calls the link information in IM server.To sum up, whole system performance is good.
As shown in Figures 2 and 3, a kind of Unified Communication initiatively SIP method of calling of execution mode, the method performs on sip server.
A kind of Unified Communication initiatively SIP method of calling, comprises step:
S210, receives the SIP call request that calls customer end sends; SIP call request comprises identify label and the source address of calls customer end.
Sip server receives the SIP call request that calls customer end sends at any time.Identify label can be SIP phone number, also can be other mark, as long as can in sip server and IM server unique identification client.Calls customer end is the client initiating SIP calling, can be any one client.
S220, according to identify label, searches the SIP log-on message corresponding with identify label in SIP log-on message.
If client does not complete registration, then do not store the SIP log-on message corresponding with the identify label of this client in sip server, sip server can not find the SIP log-on message corresponding with the identify label of this client.Otherwise store the SIP log-on message corresponding with the identify label of this client in sip server, sip server can find the SIP log-on message corresponding with the identify label of this client.SIP log-on message comprises identify label and source address.
S230, when finding the SIP log-on message corresponding with identify label, obtain link information from IM server, link information comprises connection status and/or the link address information of calls customer end.Otherwise, directly perform step S250.
Connection status and the link address information of all registered clients (comprising calls customer end) is stored in IM server.When the link information of client changes, information updating order can be sent to IM server.Particularly, when client logs in, the logon information that IM server receives client sends, and connection status is set to online.If carry out network switching after client logs in, send link address information updating order to IM server; IM server upgrades link address information after receiving link address information updating order.When client rolls off the production line, the offline information that IM server receives client sends, and connection status is set to not online.
S241, judges whether the connection status obtained from IM server is online.
If so, S243 is performed; If not, directly S250 is performed.
S243, judges that whether the link address information obtained from IM server is consistent with source address.
Regardless of judged result, perform step S250.
S250, according to whether finding link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address sends SIP call to calls customer end; SIP call comprises whether allowing calls customer end initiation SIP calling; Whether allow calls customer end to initiate SIP calling and whether find by sip server link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address is determined.
When sip server does not find the SIP log-on message corresponding with identify label, or the connection status of the calls customer end that sip server gets from IM server is not for online, or when the source address of the link address information and the calls customer end that obtain from IM server is inconsistent, the whether permission calls customer end initiation SIP request in SIP call is not for allow.
When sip server finds the SIP log-on message corresponding with identify label, and the connection status of calls customer end that sip server gets from IM server is online, and time consistent with the source address of calls customer end from the link address information of IM server acquisition, the whether permission calls customer end in SIP call initiates SIP request for allowing.
Above-mentioned Unified Communication is SIP method of calling initiatively, and sip server receives the SIP call request that calls customer end sends at any time; SIP call request comprises the identify label of calls customer end and the source address of calls customer end; According to identify label, in SIP log-on message, search the SIP log-on message corresponding with identify label; Link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server whether is found and/or source address sends SIP call to calls customer end according to sip server; SIP call comprises whether allowing calls customer end initiation SIP calling; Whether allow calls customer end to initiate SIP calling and whether find by sip server link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address is determined.Because the link information in the SIP call that the method sends is provided by IM server, instead of provided by sip server, do not need sip server to carry out periodic refresh to upgrade link information, reduce the burden of sip server; Client does not need periodically to send to connect more newer command yet simultaneously, has saved client resource, and then has improved the performance of client; In addition, IM server only needs, when client carries out network switching, just to upgrade the link information stored in IM server; Finally, IM server and sip server are two kinds of servers in unified communications, originally all need the renewal carrying out link information, and the sip server in above-mentioned Unified Communication active SIP method of calling does not need the renewal carrying out link information, directly calls the link information in IM server.To sum up, whole system performance is good.
As shown in Figure 4, a kind of Unified Communication initiatively SIP calling system of execution mode, this system performs on calls customer end.
A kind of Unified Communication initiatively SIP calling system, comprising:
Request sending module 110, for sending SIP call request to sip server; SIP call request comprises identify label and the source address of calls customer end.
The request sending module 110 of calls customer end can send SIP call request to sip server at any time.Identify label can be SIP phone number, also can be other mark, as long as can in sip server and IM server unique identification client.Calls customer end is the client initiating SIP calling, can be any one client.
Response receiver module 150, for receiving the SIP call that sip server sends; SIP call comprises whether allowing calls customer end initiation SIP calling; Whether allow calls customer end to initiate SIP calling and whether find by sip server link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address is determined; Link information comprises connection status and/or the link address information of calls customer end.
If client does not complete registration, then do not store the SIP log-on message corresponding with the identify label of this client in sip server, sip server can not find the SIP log-on message corresponding with the identify label of this client.Otherwise store the SIP log-on message corresponding with the identify label of this client in sip server, sip server can find the SIP log-on message corresponding with the identify label of this client.SIP log-on message comprises identify label and source address.
If sip server finds the SIP log-on message corresponding with identify label, then sip server obtains link information from IM server.Link information comprises connection status and/or link address information.
Connection status and the link address information of all clients (comprising calls customer end) is stored in IM server.When the link information of client changes, information updating order can be sent to IM server.Particularly, when client logs in, the logon information that IM server receives client sends, and connection status is set to online.If carry out network switching after client logs in, send link address information updating order to IM server; IM server upgrades link address information after receiving link address information updating order.When client rolls off the production line, the offline information that IM server receives client sends, and connection status is set to not online.
When sip server does not find the SIP log-on message corresponding with identify label, or the connection status of the calls customer end that sip server gets from IM server is not for online, or when the source address of the link address information and the calls customer end that obtain from IM server is inconsistent, the whether permission calls customer end initiation SIP request in the SIP call that response receiver module 150 receives is not for allow.
When sip server finds the SIP log-on message corresponding with identify label, and the connection status of calls customer end that sip server gets from IM server is online, and time consistent with the source address of calls customer end from the link address information of IM server acquisition, the whether permission calls customer end in the SIP call that response receiver module 150 receives initiates SIP request for permission.
Above-mentioned Unified Communication is SIP calling system initiatively, and the request sending module 110 of client sends SIP call request to sip server; The SIP call that the reception sip server that response receiver module 150 receives sends; SIP call comprises whether allowing calls customer end initiation SIP calling; Whether allow calls customer end to initiate SIP calling and whether find by sip server link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address is determined.Because the link information in the SIP call of this system acceptance is provided by IM server, instead of provided by sip server, do not need sip server to carry out periodic refresh to upgrade link information, reduce the burden of sip server; Client does not need periodically to send to connect more newer command yet simultaneously, has saved client resource, and then has improved the performance of client; In addition, IM server only needs, when client carries out network switching, just to upgrade the link information stored in IM server; Finally, IM server and sip server are two kinds of servers in unified communications, originally all need the renewal carrying out link information, and the sip server in above-mentioned Unified Communication active SIP calling system does not need the renewal carrying out link information, directly calls the link information in IM server.To sum up, whole system performance is good.
As shown in Figure 5, a kind of Unified Communication initiatively SIP calling system of execution mode, this system performs on sip server.
A kind of Unified Communication initiatively SIP calling system, comprising:
Request receiving module 210, for receiving the SIP call request that calls customer end sends; SIP call request comprises identify label and the source address of calls customer end.
The request receiving module 210 of sip server receives the SIP call request that calls customer end sends at any time.Identify label can be SIP phone number, also can be other mark, as long as can in sip server and IM server unique identification client.Calls customer end is the client initiating SIP calling, can be any one client.
Log-on message searches module 220, for according to identify label, searches the SIP log-on message corresponding with identify label in SIP log-on message.
If client does not complete registration, then do not store the SIP log-on message corresponding with the identify label of this client in sip server, the log-on message of sip server is searched module 220 and can not be found the SIP log-on message corresponding with the identify label of this client.Otherwise store the SIP log-on message corresponding with the identify label of this client in sip server, the log-on message of sip server is searched module 220 and can be found the SIP log-on message corresponding with the identify label of this client.SIP log-on message comprises identify label and source address.
Link information acquisition module 230, for when finding the SIP log-on message corresponding with identify label, obtain link information from IM server, link information comprises connection status and/or the link address information of calls customer end.Otherwise, directly perform response sending module 250.
Connection status and the link address information of all registered clients (comprising calls customer end) is stored in IM server.When the link information of client changes, information updating order can be sent to IM server.Particularly, when client logs in, the logon information that IM server receives client sends, and connection status is set to online.If carry out network switching after client logs in, send link address information updating order to IM server; IM server upgrades link address information after receiving link address information updating order.When client rolls off the production line, the offline information that IM server receives client sends, and connection status is set to not online.
Connection status judge module 241, for judging whether the connection status obtained from IM server is online.
If so, then link address judge module 243 is performed; If not, then response sending module 250 is performed.
Link address judge module 243, whether consistent with source address for judging the link address information obtained from IM server.
Regardless of judged result, perform response sending module 250.
Response sending module 250, for according to whether finding link information and/or source address that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server to calls customer end transmission SIP call; SIP call comprises whether allowing calls customer end initiation SIP calling; Whether allow calls customer end to initiate SIP calling and whether find by sip server link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address is determined.
When sip server does not find the SIP log-on message corresponding with identify label, or the connection status of the calls customer end that sip server gets from IM server is not for online, or when the source address of the link address information and the calls customer end that obtain from IM server is inconsistent, the whether permission calls customer end initiation SIP request in the SIP call that response sending module 250 sends is not for allow.
When sip server finds the SIP log-on message corresponding with identify label, and the connection status of calls customer end that sip server gets from IM server is online, and time consistent with the source address of calls customer end from the link address information of IM server acquisition, the whether permission calls customer end in the SIP call that response sending module 250 sends initiates SIP request for permission.
Above-mentioned Unified Communication is SIP calling system initiatively, and the request receiving module 210 of sip server receives the SIP call request that calls customer end sends at any time; SIP call request comprises the identify label of calls customer end and the source address of calls customer end; Link information acquisition module 230, according to identify label, searches the SIP log-on message corresponding with identify label in SIP log-on message; Whether response sending module 250 finds link information and/or source address that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server to calls customer end transmission SIP call according to sip server; SIP call comprises whether allowing calls customer end initiation SIP calling; Whether allow calls customer end to initiate SIP calling and whether find by sip server link information that the SIP log-on message corresponding with identify label and/or sip server obtain from IM server and/or source address is determined.Because the link information in the SIP call that this system sends is provided by IM server, instead of provided by sip server, do not need sip server to carry out periodic refresh to upgrade link information, reduce the burden of sip server; Client does not need periodically to send to connect more newer command yet simultaneously, has saved client resource, and then has improved the performance of client; In addition, IM server only needs, when client carries out network switching, just to upgrade the link information stored in IM server; Finally, IM server and sip server are two kinds of servers in unified communications, originally all need the renewal carrying out link information, and the sip server in above-mentioned Unified Communication active SIP calling system does not need the renewal carrying out link information, directly calls the link information in IM server.To sum up, whole system performance is good.
Above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make multiple distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a Unified Communication initiatively SIP method of calling, is characterized in that, comprise step:
SIP call request is sent to sip server; Described SIP call request comprises identify label and the source address of calls customer end;
Receive the SIP call that described sip server sends; Described SIP call comprises whether allowing calls customer end initiation SIP calling; Describedly whether allow calls customer end to initiate SIP calling whether to find by described sip server link information that the SIP log-on message corresponding with described identify label and/or sip server obtain from IM server and/or described source address is determined; Described link information comprises connection status and/or the link address information of described calls customer end.
2. a Unified Communication initiatively SIP method of calling, is characterized in that, comprise step:
Receive the SIP call request that calls customer end sends, described SIP call request comprises identify label and the source address of described calls customer end;
According to described identify label, in SIP log-on message, search the SIP log-on message corresponding with described identify label;
According to whether finding link information that the SIP log-on message corresponding with described identify label and/or sip server obtain from IM server and/or described source address sends SIP call to described calls customer end; Described SIP call comprises whether allowing calls customer end initiation SIP calling; Describedly whether allow calls customer end to initiate SIP calling whether to find by described sip server link information that the SIP log-on message corresponding with described identify label and/or described sip server obtain from described IM server and/or described source address is determined.
3. Unified Communication according to claim 2 initiatively SIP method of calling, it is characterized in that, described in SIP log-on message, search the step of the SIP log-on message corresponding with described identify label after, described send the step of SIP call to described calls customer end before, also comprise step:
When finding the SIP log-on message corresponding with described identify label, obtain described link information from described IM server, described link information comprises connection status and/or the link address information of described calls customer end.
4. Unified Communication according to claim 3 initiatively SIP method of calling, is characterized in that, described from after described IM server obtains the step of described link information, described send the step of SIP call to described calls customer end before, also comprise step:
Judge whether the described connection status obtained from described IM server is online.
5. Unified Communication according to claim 4 initiatively SIP method of calling, it is characterized in that, after whether the connection status that described judgement obtains from IM server is online step, described send the step of SIP call to described calls customer end before, also comprise step:
Judge that whether the described link address information obtained from described IM server is consistent with described source address.
6. a Unified Communication initiatively SIP calling system, is characterized in that, comprising:
Request sending module, for sending SIP call request to sip server; Described SIP call request comprises identify label and the source address of calls customer end;
Response receiver module, for receiving the SIP call that described sip server sends; Described SIP call comprises whether allowing calls customer end initiation SIP calling; Describedly whether allow calls customer end to initiate SIP calling whether to find by described sip server link information that the SIP log-on message corresponding with described identify label and/or sip server obtain from IM server and/or described source address is determined; Described link information comprises connection status and/or the link address information of described calls customer end.
7. a Unified Communication initiatively SIP calling system, is characterized in that, comprising:
Request receiving module, for receiving the SIP call request that calls customer end sends; Described SIP call request comprises identify label and the source address of described calls customer end;
Log-on message searches module, for according to described identify label, searches the SIP log-on message corresponding with described identify label in SIP log-on message;
Response sending module, for according to whether finding link information that the SIP log-on message corresponding with described identify label and/or sip server obtain from IM server and/or described source address sends SIP call to described calls customer end; Described SIP call comprises whether allowing calls customer end initiation SIP calling; Describedly whether allow calls customer end to initiate SIP calling whether to find by described sip server link information that the SIP log-on message corresponding with described identify label and/or described sip server obtain from described IM server and/or described source address is determined.
8. Unified Communication according to claim 7 initiatively SIP calling system, is characterized in that, also comprise:
Link information acquisition module, for when finding the SIP log-on message corresponding with described identify label, obtains described link information from described IM server, and described link information comprises connection status and/or the link address information of described calls customer end.
9. Unified Communication according to claim 8 initiatively SIP calling system, is characterized in that, also comprise:
Connection status judge module, for judging whether the described connection status obtained from described IM server is online.
10. Unified Communication according to claim 9 initiatively SIP calling system, is characterized in that, also comprise:
Link address judge module, whether consistent with described source address for judging the described link address information obtained from described IM server.
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