CN102984405A - Method and system for realizing call route - Google Patents

Method and system for realizing call route Download PDF

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Publication number
CN102984405A
CN102984405A CN2012105605016A CN201210560501A CN102984405A CN 102984405 A CN102984405 A CN 102984405A CN 2012105605016 A CN2012105605016 A CN 2012105605016A CN 201210560501 A CN201210560501 A CN 201210560501A CN 102984405 A CN102984405 A CN 102984405A
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CN
China
Prior art keywords
pbx
sign
called number
call request
call
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CN2012105605016A
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Chinese (zh)
Inventor
苏少龙
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN2012105605016A priority Critical patent/CN102984405A/en
Publication of CN102984405A publication Critical patent/CN102984405A/en
Priority to PCT/CN2013/080967 priority patent/WO2014094440A1/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/487Arrangements for providing information services, e.g. recorded voice services or time announcements
    • H04M3/493Interactive information services, e.g. directory enquiries ; Arrangements therefor, e.g. interactive voice response [IVR] systems or voice portals
    • H04M3/4931Directory assistance systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/009Arrangements for interconnection between switching centres in systems involving PBX or KTS networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M7/00Arrangements for interconnection between switching centres
    • H04M7/12Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/128Details of addressing, directories or routing tables
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/45Network directories; Name-to-address mapping
    • H04L61/4505Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
    • H04L61/4511Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/45Network directories; Name-to-address mapping
    • H04L61/4557Directories for hybrid networks, e.g. including telephone numbers

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The invention relates to a method and a system for realizing call route. The method comprises the steps that a call session control function (CSCF) entity receives a first call request sent by calling user equipment, sends an internet protocol private branch exchange (IP PBX) identification query request to a telephone number mapping (ENUM) server, receives an IP PBX identification query response sent by the ENUM server, and sends a second call request to an IP PBX according to an IP PBX identification, wherein the first call request carries a called number; the IP PBX identification query request carries the called number; the IP PBX identification query response carries the IP PBX identification corresponding to the called number; the IP PBX identification is used for identifying the IP PBX; and the second call request carries the called number. With the adoption of the method and the system, the IP PBX identification can be obtained on a core network side.

Description

A kind of method and system that realize call routing
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and system that realize call routing.
Background technology
PBX(private branch exchange, subscriber exchange), be widely used in being used for finishing the telephone intercommunication of enterprises in the office mechanism of enterprise, and enterprise and public switched telephone network (PSTN) (PublicSwitched Telephone Network, abbreviation: telephone intercommunication PSTN).Traditional PBX uses narrow band access PSTN, along with communication network to IP(Internet Protocol, Internet protocol) changes direction evolution, Internet protocol subscriber exchange (Internet ProtocolPrivate Branch Exchange, abbreviation: IP PBX) based on the IP agreement have appearred.IP PBX is based on the telephone exchange of Internet protocol, and it realizes the functional unification of computer network and telephone exchange.Each subscriber equipment (User Equipment in the system of employing IP PBX, be called for short: UE) use the IP mode to carry out data communication, by internet (Internet), can realize telecommunication, teleworking and ecommerce between the IP PBX in the different system.
Internet protocol multi-media sub-system (IP Multimedia Subsystem, be called for short: be by 3G partner program (3rd Generation Partnership Project IMS), be called for short: 3GPP) introduce in the R5 stage, purpose is that the experience with Internet is incorporated into the mobile network.
By IMS, can so that IP network is realized runing, can be managed, can value-added multimedia communication.Realize this multimedia communication, need IMS can identify provides service for called UE IP PBX, namely need IMS can access provides the IP PBX of service for called UE IP PBX sign.But, the method that core-network side is obtained the problem of this IP PBX sign that solves is not yet arranged at present.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of method and system that realize call routing, so that (Call Session Control Function, be called for short: CSCF) entity can be retrieved as the IP PBX sign that called UE provides the IP PBX of service to the CSCF among the IMS.
For achieving the above object, first aspect present invention provides a kind of method that realizes call routing, and described method comprises:
CSCF CSCF entity receives the first call request that calling subscriber equipment sends, and called number is carried in described the first call request;
Send Internet protocol subscriber exchange IP PBX sign query requests to telephone number mapping E.164 Number server, described IP PBX sign query requests is carried described called number;
Receive the IP PBX sign inquiry response that described E.164 Number server sends, wherein, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number, and described IP PBX sign is used for sign IP PBX;
According to described IP PBX sign, send the second call request to described IP PBX, described called number is carried in described the second call request.
In conjunction with first aspect, in the possible implementation of the first of first aspect, described method also comprises: the mapping relations of the described called number of described E.164 Number server pre-save and described IP PBX sign.
In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second of first aspect, describedly send the second call request according to described IP PBX sign to described IP PBX, comprising:
According to described IP PBX sign, send described the second call request to described IP PBX, described called number and described IP PBX sign are carried in described the second call request.
Second aspect, the present invention also provides the entity of the CSCF CSCF in a kind of IP Multimedia System, and described CSCF entity comprises:
Receiving element is used for receiving the first call request that calling subscriber equipment sends, and called number is carried in described the first call request;
Transmitting element is used for sending Internet protocol subscriber exchange IP PBX sign query requests to telephone number mapping E.164 Number server, and described IP PBX sign query requests is carried the described called number that described receiving element receives;
Described receiving element also is used for receiving the IP PBX sign inquiry response that described E.164 Number server sends, and wherein, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number, and described IP PBX sign is used for sign IP PBX;
Described transmitting element also is used for identifying according to the described IP PBX that described receiving element receives, and sends the second call request to described IP PBX, and described called number is carried in described the second call request.
In conjunction with second aspect, in the possible implementation of the first of second aspect, described IP PBX sign is also carried in described the second call request that described transmitting element sends.
The third aspect, the present invention also provides a kind of telephone number mapping E.164 Number server, and described E.164 Number server comprises:
Receiving element is used for the Internet protocol subscriber exchange IP PBX sign query requests that receipt of call conversation control function CSCF entity sends, and described IP PBX sign query requests is carried called number;
Matching unit is used for the described called number according to described receiving element reception, searches to obtain the IP PBX sign corresponding with described called number;
Transmitting element is used for sending IP PBX sign inquiry response, and described IP PBX sign inquiry response carries described matching unit and searches the IP PBX sign that obtains.
In conjunction with the third aspect, in the possible execution mode of the first of the third aspect, also comprise:
Storage unit is used for the mapping relations that the described called number of pre-save and described IP PBX identify, and obtains the IPPBX sign corresponding with described called number so that described matching unit according to described called number, is searched.
Fourth aspect, the present invention also provides a kind of system that realizes call routing, and described system comprises:
CSCF CSCF entity and E.164 Number server that the embodiment of the invention provides.
The method and system of realization call routing provided by the invention, by the mapping relations of the good PBX number of planning installs and PBX in advance on E.164 Number server, make the CSCF entity of core-network side can directly obtain the sign of IP PBX by E.164 Number server, solve core-network side and obtain the problem of IP PBX sign, do not need the equipment of IMS system core side is made amendment, reduce the complexity of data configuration, be applicable to all kinds of IMS core net, portable strong.
Description of drawings
A kind of system architecture diagram of under the IMS network, realizing call routing that Fig. 1 provides for the embodiment of the invention one;
A kind of method flow diagram of realizing call routing that Fig. 2 provides for the embodiment of the invention one;
The method flow diagram of a kind of query call route that Fig. 3 provides for the embodiment of the invention one;
A kind of signaling diagram of realizing the call routing process that Fig. 4 provides for the embodiment of the invention one;
A kind of structure chart of realizing the system of call routing that Fig. 5 provides for the embodiment of the invention two;
The CSCF entity that Fig. 6 provides for the embodiment of the invention two and the structure chart of E.164 Number server;
The structure chart of the CSCF entity that Fig. 7 provides for the embodiment of the invention three;
The structure chart of the E.164 Number server that Fig. 8 provides for the embodiment of the invention three.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
ENUM(Telephone Numbers to URI Mapping is called for short: the telephone number mapping) be that a kind of E.164 number translated is URI(Uniform Resource Indentifier, be called for short: mapping Uniform Resource Identifier).By this mapping, can become the form of domain name to leave DNS(Domain Name Server, name server in number translated E.164) in, thereby make the E.164 telephone number of international uniform become the network address resources that can in the Internet, use.
Fig. 1 is a kind of system architecture diagram of realizing call routing under the IMS network that the embodiment of the invention provides, as shown in Figure 1, described IMS system comprises the network element device in the IMS core net, (Session Border Controller is called for short: SBC) with IP PBX the Session Border Controller of access side.
Network element device in the IMS core net can comprise CSCF(Call Session Control Function, CSCF) entity, BCF(Border Control Function, the boundary Control function) entity and E.164 Number server.Wherein, the CSCF entity can comprise PCSCF(Proxy-Call SessionControl Function, Proxy-Call Session Control Function) entity, SCSCF(Serving-CallSession Control Function, service-call session control function) entity and I-CSCF(Interrogating-Call Session Control Function, interrogation-call session control function) entity.The BCF entity can be connected with SBC by the IP bearer network.
Embodiment one
Based on system architecture diagram shown in Figure 1, the embodiment of the invention provides a kind of method that realizes call routing, and as shown in Figure 2, the method comprises:
Step S101, CSCF entity receive the first call request that calling subscriber equipment sends, and called number is carried in described the first call request.
When the calling subscriber equipment in the IMS network makes a call to called subscriber equipment, the CSCF entity receives the first call request that calling subscriber equipment sends, the normally dialogue-based initializtion protocol of this first call request (Session Initial Protocol, be called for short: INVITE SIP), carry called number in this INVITE.
Wherein, need to prove that this CSCF entity can be the SCSCF entity.
Step S102, CSCF entity send IP PBX sign query requests to E.164 Number server, and described IPPBX sign query requests is carried described called number.
Step S103, CSCF entity receive the IP PBX sign inquiry response that described E.164 Number server sends, and wherein, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number, and described IP PBX sign is used for sign IP PBX.
Wherein, described E.164 Number server pre-save the mapping relations between telephone number and the IP PBX sign, IP PBX identifies in order to IP PBX corresponding to unique identification; Described E.164 Number server can obtain the IP PBX sign corresponding with described called number according to described called number.
According to the RFC4904 protocol definition, IP PBX sign comprises the interface parameters of IP PBX.Particularly, IP PBX sign can comprise following interface parameters: tgrp and trunk-context.By tgrp and these two interface parameterss of trunk-context, can represent IP PBX sign.
Step S104, CSCF entity identify according to described IP PBX, send the second call request to described IP PBX, and described called number is carried in described the second call request.
In the present embodiment, the second call request that the CSCF entity sends can also be carried described IP PBX sign, and described CSCF entity can send described the second call request by the BCF entity.
Particularly, the second call request that the CSCF entity will carry first called number and IP PBX sign is transmitted to the BCF entity, the BCF entity is transmitted to this second call request the SBC in the access side again, SBC finds the corresponding IP PBX of called number according to the sign of the IP PBX in the second call request that receives, and gives this IP PBX call routing.
The method flow diagram of the query call route that Fig. 3 provides for present embodiment, as shown in Figure 3, the method for query call route of the present invention comprises:
Step S201, E.164 Number server receive the IP PBX sign query requests that the CSCF entity sends, and described IP PBX sign query requests is carried called number.
Step S202, E.164 Number server are searched and are obtained the IP PBX sign corresponding with described called number according to described called number.
Wherein, described E.164 Number server pre-save the mapping relations between telephone number and the IP PBX sign, IP PBX identifies in order to IP PBX corresponding to unique identification; Described E.164 Number server can obtain the IP PBX sign corresponding with described called number according to described called number.
Step S203, E.164 Number server send IP PBX sign inquiry response to the CSCF entity, and described IPPBX sign inquiry response carries the IP PBX sign corresponding with described called number.
As shown in Figure 4, a kind of signaling diagram of realizing the call routing process for present embodiment provides comprises:
S1, SCSCF entity receive first call request of carrying called number that calling subscriber equipment sends.
S2, SCSCF entity send IP PBX sign query requests to E.164 Number server, and described IP PBX sign query requests is carried called number.
S3, E.164 Number server are according to mapping relations between the telephone number of preserving and the IP PBX sign, search and obtain the IP PBX sign corresponding with called number, and to SCSCF entity transmission IP PBX sign inquiry response, this IP PBX sign inquiry response carries searches the IP PBX sign that obtains.
For example, and non-limiting, E.164 Number server can be searched and obtain the IP PBX sign corresponding with this called number as example, and the form of expression of this IP PBX sign can be specially " tgrp=1; Trunk-context=vlan1 ".
E.164 Number server search obtain the IP PBX corresponding with called number sign after, IP PBX sign that will be corresponding with called number sends to the SCSCF entity by IP PBX sign inquiry response; And non-limiting, this called number is 28780808 as example, the information that this IP PBX sign inquiry response carries can be expressed as "! 2878 1; Tgrp=1; ".In this regular expression "! 2878 1 " represent this called number 28780808.
S4, SCSCF entity are according to IP PBX sign, and corresponding IP PBX sends the second call request to this IP PBX sign.
Wherein, this second call request can also be carried this IP PBX sign, and this IP PBX sign is used for sign IP PBX, can send the second call request to IP PBX corresponding to this IP PBX sign according to IP PBX.
Wherein, step S4 can also further be refined as following three steps:
S41, SCSCF entity send the second call request to the BCF entity, and this called number and this IP PBX sign are carried in this second call request.
S42, BCF entity send to SBC with this second call request.
S43, SBC send this second call request according to the IP PBX sign of carrying in the second call request to the IP PBX corresponding with this IP PBX sign.
Particularly, SBC can find corresponding IP PBX according to tgrp and trunk-context, and the second call request is sent to IP PBX.
More than be the detailed description that realization call route method provided by the present invention is carried out, the below is described in detail the system of realization call routing provided by the invention.
Embodiment two
Fig. 5 is a kind of structure chart of realizing the system of call routing that present embodiment provides, and as shown in Figure 5, this system comprises: CSCF entity 10 and E.164 Number server 20, wherein,
CSCF entity 10 is used for receiving the first call request that calling subscriber equipment sends, and called number is carried in described the first call request, and sends IP PBX sign query requests to E.164 Number server 20, and described IP PBX sign query requests is carried described called number.
E.164 Number server 20 is used for receiving the described IP PBX sign query requests that CSCF entity 10 sends, according to the called number in the described IP PBX sign query requests, obtain the IPPBX sign corresponding with described called number, and to CSCF entity 10 transmission IP PBX sign inquiry responses, wherein, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number, and described IP PBX sign is used for sign IP PBX.
CSCF entity 10 also is used for receiving described IP PBX sign inquiry response, according to described IP PBX sign, sends the second call request to described IP PBX, and described called number is carried in described the second call request.
Fig. 6 is the CSCF entity 10 that provides of present embodiment and the structure chart of E.164 Number server 20, and as shown in Figure 6, CSCF entity 10 of the present invention comprises: receiving element 101 and transmitting element 102.E.164 Number server 20 comprises: receiving element 201, matching unit 202 and transmitting element 203.
Receiving element 101 is used for receiving the first call request that calling subscriber equipment sends, and called number is carried in described the first call request.
When the calling subscriber equipment in the IMS network makes a call to called subscriber equipment, receiving element 101 receives the first call request that calling subscriber equipment sends, this first call request normally based on the INVITE of SIP, is carried called number in this INVITE.
Transmitting element 102 is used for sending IP PBX sign query requests to E.164 Number server 20, and described IPPBX sign query requests is carried the described called number that receiving element 101 receives.
The receiving element 201 of E.164 Number server 20 is used for receiving the IP PBX sign query requests that CSCF entity 10 sends, and described IP PBX sign query requests is carried called number.
The described called number that matching unit 202 is used for according to receiving element 201 receptions is searched and is obtained the IP PBX sign corresponding with described called number.
Wherein, need to prove, E.164 Number server 20 pre-saves the mapping relations between telephone number and the IP PBX sign, IP PBX identifies in order to IP PBX corresponding to unique identification; E.164 Number server 20 can obtain the IP PBX sign corresponding with described called number according to the called number that receiving element 201 receives.
Wherein, E.164 Number server 20 can also comprise the storage unit (not shown), this storage unit is used for the mapping relations of pre-save called number and IP PBX sign, obtains the IP PBX sign corresponding with called number so that matching unit 202 according to called number, can be searched.
According to the RFC4904 protocol definition, IP PBX sign comprises the interface parameters of IP PBX.Particularly, IP PBX sign can comprise following interface parameters: tgrp and trunk-context.By tgrp and these two interface parameterss of trunk-context, can represent IP PBX sign.
Transmitting element 203 is used for sending IP PBX sign inquiry response to CSCF entity 10, and described IP PBX sign inquiry response carries the IP PBX sign that matching unit 202 finds.
Receiving element 101 also is used for receiving the IP PBX sign inquiry response that E.164 Number server 20 sends, and wherein, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number, and described IP PBX sign is used for sign IP PBX.
Transmitting element 102 also is used for identifying according to the described IP PBX that receiving element 101 receives, and sends the second call request to described IP PBX, and described called number is carried in described the second call request.
In the present embodiment, the second call request that transmitting element 102 sends can also be carried described IP PBX sign, and transmitting element 102 can send described the second call request by the BCF entity.Particularly, the second call request that transmitting element 102 will carry first called number and IP PBX sign is transmitted to the BCF entity, the BCF entity is transmitted to this second call request the SBC in the access side again, SBC finds the corresponding IP PBX of called number according to the sign of the IP PBX in the second call request that receives, and gives this IP PBX call routing.
Embodiment three
The structure chart of the CSCF entity 10 that Fig. 7 provides for present embodiment, as shown in Figure 7, CSCF entity 10 of the present invention comprises: radio network interface 11, processor 12 and memory 13.System bus 14 is used for connecting wireless network interface 11, processor 12 and memory 13.
Radio network interface 11 is used for communicating with the SBC of E.164 Number server, access side etc.
Memory 13 can be permanent memory, and for example hard disk drive and flash memory have software module and device driver in the memory 13.Software module can be carried out the various functional modules of said method of the present invention; Device driver can be network and interface drive program.
When starting, these component softwares are loaded in the memory 13, are then accessed and carry out as giving an order by processor 12:
Receive the first call request that calling subscriber equipment sends, called number is carried in described the first call request;
Send IP PBX sign query requests to telephone number mapping E.164 Number server, described IP PBX sign query requests is carried described called number;
Receive the IP PBX sign inquiry response that described E.164 Number server sends, wherein, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number, and described IP PBX sign is used for sign IP PBX;
According to described IP PBX sign, send the second call request to described IP PBX, described called number is carried in described the second call request.
The CSCF entity of present embodiment can obtain the sign of IP PBX by the mapping relations of the good PBX number of planning installs and PBX in advance on E.164 Number server, does not need the equipment of core-network side is made amendment, and reduces the complexity of data configuration.
The structure chart of the E.164 Number server that Fig. 8 provides for present embodiment, as shown in Figure 8, E.164 Number server 20 of the present invention comprises: radio network interface 21, processor 22 and memory 23.System bus 24 is used for connecting wireless network interface 21, processor 22 and memory 23.
Radio network interface 21 is used for communicating with the CSCF entity of core-network side etc.
Memory 23 can be permanent memory, and for example hard disk drive and flash memory have software module and device driver in the memory 23.Software module can be carried out the various functional modules of said method of the present invention; Device driver can be network and interface drive program.
When starting, these component softwares are loaded in the memory 23, are then accessed and carry out as giving an order by processor 22:
Receive the IP PBX sign query requests that the CSCF entity sends, described IP PBX sign query requests carries called number;
According to described called number, search and obtain the IP PBX sign corresponding with described called number;
Send IP PBX sign inquiry response, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number.
Wherein, IP PBX sign comprises the interface parameters of described IP PBX.The response of described inquiry telephone exchange sign is specially described called number to the regular expression of IP PBX sign mapping.
The E.164 Number server of present embodiment is by the mapping relations of the good PBX number of planning installs in advance and PBX, so that core network element obtains the sign of IP PBX.
Realization call route method provided by the invention and system, by the mapping relations of the good PBX number of planning installs and PBX in advance on E.164 Number server, after the CSCF of IMS core-network side entity receives call request, the CSCF entity is by the inquiry E.164 Number server, E.164 Number server is exported the mapping relations of PBX number and PBX in the mode of regular expression, make the CSCF entity obtain the sign of IP PBX, solve core net and obtain the problem of IP PBX sign, reduce the complexity of data configuration, be applicable to all kinds of IMS core net, portable strong.
The professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; the protection range that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. a method that realizes call routing is characterized in that, described method comprises:
CSCF CSCF entity receives the first call request that calling subscriber equipment sends, and called number is carried in described the first call request;
Send Internet protocol subscriber exchange IP PBX sign query requests to telephone number mapping E.164 Number server, described IP PBX sign query requests is carried described called number;
Receive the IP PBX sign inquiry response that described E.164 Number server sends, wherein, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number, and described IP PBX sign is used for sign IP PBX;
According to described IP PBX sign, send the second call request to described IP PBX, described called number is carried in described the second call request.
2. call route method according to claim 1 is characterized in that, described method also comprises:
The mapping relations of the described called number of described E.164 Number server pre-save and described IP PBX sign.
3. call route method according to claim 1 and 2 is characterized in that, describedly sends described the second call request according to described IP PBX sign to described IP PBX, comprising:
According to described IP PBX sign, send described the second call request to described IP PBX, described called number and described IP PBX sign are carried in described the second call request.
4. call route method according to claim 3 is characterized in that, described IP PBX sign comprises the following interface parameters of described IP PBX: tgrp and trunk-context.
5. the CSCF CSCF entity in the IP Multimedia System is characterized in that described CSCF entity comprises:
Receiving element is used for receiving the first call request that calling subscriber equipment sends, and called number is carried in described the first call request;
Transmitting element is used for sending Internet protocol subscriber exchange IP PBX sign query requests to telephone number mapping E.164 Number server, and described IP PBX sign query requests is carried the described called number that described receiving element receives;
Described receiving element also is used for receiving the IP PBX sign inquiry response that described E.164 Number server sends, and wherein, described IP PBX sign inquiry response carries the IP PBX sign corresponding with described called number, and described IP PBX sign is used for sign IP PBX;
Described transmitting element also is used for identifying according to the described IP PBX that described receiving element receives, and sends the second call request to described IP PBX, and described called number is carried in described the second call request.
6. CSCF entity according to claim 5 is characterized in that, described IP PBX sign is also carried in described the second call request that described transmitting element sends.
7. according to claim 5 or 6 described CSCF entities, it is characterized in that described IP PBX sign comprises the following interface parameters of described IP PBX: tgrp and trunk-context.
8. a telephone number shines upon E.164 Number server, it is characterized in that described E.164 Number server comprises:
Receiving element is used for the Internet protocol subscriber exchange IP PBX sign query requests that receipt of call conversation control function CSCF entity sends, and described IP PBX sign query requests is carried called number;
Matching unit is used for the described called number according to described receiving element reception, searches to obtain the IP PBX sign corresponding with described called number;
Transmitting element is used for sending IP PBX sign inquiry response, and described IP PBX sign inquiry response carries described matching unit and searches the IP PBX sign that obtains.
9. E.164 Number server according to claim 8 is characterized in that, also comprises:
Storage unit is used for the mapping relations that the described called number of pre-save and described IP PBX identify, and obtains the IPPBX sign corresponding with described called number so that described matching unit according to described called number, is searched.
10. E.164 Number server according to claim 8 is characterized in that, described IP PBX sign comprises the following interface parameters of described IP PBX: tgrp and trunk-context.
11. a system that realizes call routing is characterized in that, described system comprises:
Such as arbitrary claim described CSCF CSCF entity in the claim 5~7 and such as the described E.164 Number server of arbitrary claim in the claim 8~10.
CN2012105605016A 2012-12-21 2012-12-21 Method and system for realizing call route Pending CN102984405A (en)

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CN2012105605016A CN102984405A (en) 2012-12-21 2012-12-21 Method and system for realizing call route
PCT/CN2013/080967 WO2014094440A1 (en) 2012-12-21 2013-08-07 Method and system for implementing call routing

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CN2012105605016A CN102984405A (en) 2012-12-21 2012-12-21 Method and system for realizing call route

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CN102984405A true CN102984405A (en) 2013-03-20

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