CN100576845C - A kind of method and communication system that realizes based on the IP WAC of soft switch - Google Patents
A kind of method and communication system that realizes based on the IP WAC of soft switch Download PDFInfo
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- CN100576845C CN100576845C CN200510024386A CN200510024386A CN100576845C CN 100576845 C CN100576845 C CN 100576845C CN 200510024386 A CN200510024386 A CN 200510024386A CN 200510024386 A CN200510024386 A CN 200510024386A CN 100576845 C CN100576845 C CN 100576845C
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Abstract
For realizing the wide area IP Centrex business between multi soft switching domain, the present invention introduces IP Centrex server network element in network, the networking mode of the IP Centrex business between multi soft switching domain that realizes has been proposed, and, realized the Session Initiation Protocol interface of soft switch and IP Centrex server by expansion to Session Initiation Protocol message.The invention provides a kind of mechanism that realizes the wide area IPCentrex business between multi soft switching domain (being IP WAC), intactly provided the implementation of wide area IP Centrex business, thereby can satisfy the demand of various enterprise-class tools well.This scheme is simple, effective, is easy to realize.
Description
Technical field
The present invention relates to IP-based communication system, relate more particularly to method and the communication system of realization based on the IP WAC (IP Wide Area Centrex, wide area IP Centrex) of soft switch (Softswitch).
Background technology
Mainly contain three kinds of soft switchcall server implementations at present: 1, can insert the various device soft switchcall server of (comprising various wide, narrow speech ciphering equipments and video equipment), i.e. the soft switchcall server of pattern of fusion; 2, can insert the soft switchcall server (being the voice soft switchcall servers) of various speech ciphering equipments and can insert the soft switchcall server (being the multimedia soft switching system) of various video equipments; 3, can insert the soft switchcall server (arrowband soft switchcall server) of various narrow-band devices and can insert the soft switchcall server (broadband soft switchcall server) of various broadband devices.
For first kind of soft switchcall server implementation, can realize the IP Centrex business of the various users (being various wide, narrowband speech users and video user) in this soft switch territory at present.But along with the distributed of enterprise customer and internationalization, the IPCentrex business in the single soft switch territory can not satisfy the demand of existing enterprise.
For second kind of soft switchcall server implementation, be merely able to realize the IP Centrex business of the various users (comprising various voice users) in these voice soft switch territory at present, or realize the IP Centrex business of the various users (comprising various video user) in this video soft switch territory.Yet the wide area IP Centrex business between the soft switch intra domain user of voice soft switch intra domain user, video soft switch intra domain user or other types does not have feasible solution at present, therefore can't satisfy the demand of enterprise-class tools.
For the third soft switchcall server implementation, exist similar problem at present, promptly can't realize the wide area IP Centrex business between the soft switch intra domain user of arrowband soft switch intra domain user, broadband soft switch intra domain user or other types, therefore can't satisfy the demand of enterprise-class tools.
In a word, lack at present a kind of effectively, wide area IPCentrex between the multi soft switching domain (being IP WAC) can be provided professional method.
Summary of the invention
Therefore, the objective of the invention is to realize a kind of effectively, wide area IP Centrex between the multi soft switching domain (being IP WAC) can be provided professional method, to satisfy the demand of enterprise-class tools well, the object of the invention also is to introduce new network element, and proposes a kind of networking mode that can realize wide area IP Centrex business between multi soft switching domain.By expansion, realize Session Initiation Protocol interface of the present invention to Session Initiation Protocol message.
For this reason, the invention provides a kind of communication system that realizes wide area IP Centrex, it is characterized in that comprising:
An IP Centrex server, this IP Centrex server is administered the wide area IP Centrex user in a plurality of soft switch territory, preserves all above-mentioned wide area IP Centrex users' relevant information in this IP Centrex server;
Whether a plurality of soft switch territory comprises two parts information at least in the profile of soft switch intra domain user, be wide area IP Centrex user promptly, and if this user belong to which IP Centrex Server for this user of wide area IP Centrex user.
The present invention also provides a kind of method that is used to realize wide area IP Centrex, it is characterized in that may further comprise the steps:
When the calling subscriber sends calling, if have at least one to be wide area IP Centrex user among caller of calling out or the called subscriber, the soft switch at caller or called subscriber place sends INVITE to IP Centrex server, this IP Centrex server is to be based upon in this communication system, this IP Centrex server is administered the wide area IP Centrex user in a plurality of soft switch territory, in this IP Centrex server, preserve all above-mentioned wide area IP Centrex users' relevant information, in the profile of soft switch intra domain user, comprise two parts information at least, whether be wide area IP Centrex user promptly, if and which IP Centrex server this user belongs to for this user of wide area IP Centrex user, communication protocol between each soft switch territory and the IP Centrex server is Session Initiation Protocol
IP Centrex server receives this INVITE, judge whether wide area IP Centrex user of called subscriber according to this message, if the called subscriber is wide area IP Centrex user, soft switch to the called subscriber place sends INVITE, if the called subscriber is non-IPCentrex user, then be routed to the soft switch at calling subscriber place;
Behind the soft switch receipt of call at called subscriber place, judge at first whether the calling subscriber is wide area IP Centrex user; Secondly, judge whether the called subscriber is wide area IP Centrex user,, then find corresponding user according to called number if the called subscriber is wide area IP Centrex user; If the non-wide area IP of called subscriber Centrex user then needs to obtain corresponding business information and do corresponding processing according to this user's profile.
The solution of the present invention provides a kind of mechanism that realizes the wide area IP Centrex business (being IP WAC) between multi soft switching domain, has intactly provided the implementation of wide area IP Centrex business, thereby can satisfy the demand of various enterprise-class tools well.This scheme is simple, effective, is easy to realize.
By the content below in conjunction with the description of the drawings and claims, and along with understanding more comprehensively of the present invention, other purposes of the present invention and effect will become and know more and easy to understand.
Description of drawings
Preferred implementation of the present invention is described below with reference to the accompanying drawings, wherein:
Fig. 1 represents the networking mode schematic diagram according to wide area IP Centrex business between multi soft switching domain of the present invention;
Fig. 2 represents the message related to calls flow process schematic diagram according to wide area IP Centrex business between multi soft switching domain of the present invention.
Embodiment
For realizing the wide area IP Centrex business between multi soft switching domain, the present invention introduces IP Centrex server (IP Centrex Server) network element in network, the networking mode of wide area IP Centrex business between realization multi soft switching domain has as shown in Figure 1 been proposed, and, realized the Session Initiation Protocol interface of soft switch and IP Centrex server by expansion to Session Initiation Protocol message.
Under above-mentioned networking mode, IP Centrex server can be administered the wide area IP Centrex user in a plurality of dissimilar soft switch territories, thereby realizes the wide area IP Centrex business between multi soft switching domain.IP Centrex server can be present in same physical entity with application server (ApplicationServer).
In IP Centrex server, preserve all wide area IP Centrex users' personal profiles (private profile) and corresponding public address (public address)/E.164 number (E.164 number), routing rule (Routing rule) thereof.
Whether newly-increased two parts information is wide area IPCentrex user's mark (flag) promptly in the profile of soft switch intra domain user, and this user belongs to which IP Centrex server (if this user is wide area IP Centrex user).
If have at least one to be IP Centrex user in the caller and called users, this calling must be routed on the IP Centrex server and handle accordingly.
Mainly contain following several situation:
Situation one: caller is wide area IP Centrex user, and called is not wide area IP Centrex user.
This calling is routed on the corresponding IP Centrex server network element from the soft switch at calling subscriber place, and this IP Centrex server network element is handled accordingly, and subsequent treatment is carried out in the soft switch that routes the call to the calling subscriber place then.
Situation two: caller is wide area IP Centrex user, and called is wide area IP Centrex user
This calling is routed on the corresponding IP Centrex server network element from the soft switch at calling subscriber place, and this IP Centrex server network element is handled accordingly, and the soft switch that routes the call to the called subscriber place is then handled.
Situation three: caller is not wide area IP Centrex user, and called is wide area IP Centrex user, and caller and called users belongs to same soft switch territory.
This calling is routed on the corresponding IP Centrex server network element from the soft switch at caller and called users place, and this IP Centrex server network element is handled accordingly, and the soft switch that routes the call to the called subscriber place is then handled.
Situation four: caller is not wide area IP Centrex user, and called is wide area IP Centrex user, and caller and called users does not belong to same soft switch territory.
This calling is routed to the soft switch at called subscriber place from the soft switch at calling subscriber place, soft switch by the called subscriber place routes the call to corresponding IP Centrex server network element then, this IP Centrex server network element is handled accordingly, and the soft switch that routes the call to the called subscriber place is then handled.
In soft switch in the initial INVITE request message that IP Centrex server sends, for the From header fields, introduce " role=value " parameter, wherein value is public or private, thereby after IP Centrex server is received this INVITE, just can judge according to the value of role parameter in the From header fields whether the calling subscriber is wide area IPCentrex user, if the calling subscriber is wide area IP Centrex user, then (for example: CLIR) and do corresponding processing obtain its place wide area IP Centrex group's information and corresponding business information by the profile of inquiring about this user; If the calling subscriber is public user, then IP Centrex server need not this calling subscriber is done any processing.
At IP Centrex server in the initial INVITE message that soft switch sends, for From header fields and To header fields, introduce " role=value " parameter, wherein value is public or private, thereby after this INVITE is received in soft switch, at first judge according to the value of role parameter in the From header fields whether the calling subscriber is wide area IPCentrex user (this information is extremely important to called subscriber's CLIP business); Secondly, judge according to the value of To header fields role parameter whether the called subscriber is wide area IPCentrex user,, then find corresponding user to get final product according to called number if the called subscriber is wide area IP Centrex user; If the called subscriber is public user, then need to obtain corresponding business information (as CLIP, CFU or the like) and do corresponding processing according to this user's profile.
Example
User A is the user in soft switch 1 territory, and user B is the user in soft switch 2 territories, and user A and user B be the user's (belonging to IPCentrex server 3) in the same wide area IP Centrex group, and user A and user B set up basic call:
User A dials the interior number of wide area IP Centrex group of user B, soft switch 1 knows that by the profile of analysis user A this user is wide area IP Centrex user, thereby send the INVITE request message to IP Centrex server 3, in the From header fields, be with " role=private " parameter;
After IP Centrex server 3 is received the INVITE that soft switch 1 sends, learn that by " role=private " parameter in the From header fields calling subscriber is wide area IPCentrex user, obtain the wide area IP Centrex group's information and the corresponding business information (as CLIR) at its place and do corresponding processing by the profile of inquiring about this user; Then, the IPCentrex server is searched in corresponding wide area IP Centrex group, analyzing called number and obtain the business information of user B, corresponding public address/E.164 number and corresponding routing iinformation, thereby send the INVITE request message to soft switch 2, in the From header fields, be with " role=private " parameter, and in the To header fields, be with " role=private " parameter.
Do not break away from design of the present invention and scope and can make many other changes and this type.Should be appreciated that to the invention is not restricted to specific execution mode, scope of the present invention is defined by the following claims.
Claims (9)
1. communication system that realizes wide area IP Centrex is characterized in that comprising:
An IP Centrex server, this IP Centrex server is administered the wide area IP Centrex user in a plurality of soft switch territory, preserves all above-mentioned wide area IP Centrex users' relevant information in this IP Centrex server;
Whether a plurality of soft switch territory comprises two parts information at least in the profile of soft switch intra domain user, be wide area IP Centrex user promptly, and if this user be wide area IP Centrex user, which IP Centrex server this user belongs to,
Described IP Centrex server is to handling accordingly from the calling of the wide area IP Centrex user in the described soft switch territory, and after corresponding the processing, route the call to the soft switch territory at another wide area IP Centrex user place of being called out, when perhaps working as another user who is called out and not being wide area IP Centrex user, this calling route is gone back to the soft switch territory at this wide area IPCentrex user place.
2. communication system according to claim 1 is characterized in that the communication protocol between each soft switch territory and the IP Centrex server is Session Initiation Protocol.
3. according to the communication system of claim 1, it is characterized in that the wide area IP Centrex user in described a plurality of soft switch territory can be a same type or dissimilar.
4. according to the communication system of claim 1, the relevant information that it is characterized in that the wide area IP Centrex user that preserves in the described IP Centrex server comprises user's profile and corresponding public address thereof, E.164 number and routing rule.
5. method that is used to realize wide area IP Centrex is characterized in that may further comprise the steps:
When the calling subscriber sends calling, if there is one to be wide area IP Centrex user among caller of calling out or the called subscriber, send INVITE or send INVITE to IP Centrex server to IP Centrex server as the soft switch at wide area IP Centrex user's calling subscriber place as the soft switch at wide area IP Centrex user's called subscriber place, or if the calling subscriber or the called subscriber that ought call out are wide area IP Centrex user, the soft switch at calling subscriber place sends INVITE to IP Centrex server, this IP Centrex server is to be based upon in this communication system, this IP Centrex server is administered the wide area IP Centrex user in a plurality of soft switch territory, in this IP Centrex server, preserve all above-mentioned wide area IP Centrex users' relevant information, in the profile of soft switch intra domain user, comprise two parts information at least, whether be wide area IP Centrex user promptly, if and which IP Centrex server this user belongs to for this user of wide area IP Centrex user, communication protocol between each soft switch territory and the IP Centrex server is Session Initiation Protocol
IP Centrex server receives this INVITE, judge whether wide area IP Centrex user of called subscriber according to this message, if the called subscriber is wide area IP Centrex user, soft switch to the called subscriber place sends INVITE, if the called subscriber is non-wide area IP Centrex user, then be routed to the soft switch at calling subscriber place;
After the soft switch at called subscriber place receives INVITE, judge at first whether the calling subscriber is wide area IP Centrex user; Secondly, judge whether the called subscriber is wide area IPCentrex user,, then find corresponding user according to called number if the called subscriber is wide area IP Centrex user; If the non-wide area IP of called subscriber Centrex user then needs to obtain corresponding business information and do corresponding processing according to this user's profile.
6. the method that is used to realize wide area IP Centrex according to claim 5, the soft switch that it is characterized in that described calling subscriber place is in the INVITE that IP Centrex server sends, for the From header fields, whether the parametric representation calling subscriber is set is wide area IP Centrex user.
7. the method that is used to realize wide area IP Centrex according to claim 5, it is characterized in that described IP Centrex server is in the INVITE of the soft switch transmission at called subscriber place, whether for From header fields and To header fields, having corresponding calling subscriber of a parametric representation and called subscriber respectively is wide area IP Centrex user.
8. according to one of any described method that is used to realize wide area IP Centrex of claim 5-7, it is characterized in that the wide area IP Centrex user in described a plurality of soft switch territory can be a same type or dissimilar.
9. according to one of any described method that is used to realize wide area IP Centrex of claim 5-7, the relevant information that it is characterized in that the wide area IPCentrex user that preserves in the described IP Centrex server comprises user's profile and corresponding public address thereof, E.164 number and routing rule.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510024386A CN100576845C (en) | 2005-03-15 | 2005-03-15 | A kind of method and communication system that realizes based on the IP WAC of soft switch |
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| CN200510024386A CN100576845C (en) | 2005-03-15 | 2005-03-15 | A kind of method and communication system that realizes based on the IP WAC of soft switch |
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| CN1835497A CN1835497A (en) | 2006-09-20 |
| CN100576845C true CN100576845C (en) | 2009-12-30 |
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