CN102131301B - A kind of method and device being non-IMS terminal and realizing the many public user identity services of IMS - Google Patents
A kind of method and device being non-IMS terminal and realizing the many public user identity services of IMS Download PDFInfo
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Abstract
The present invention proposes a kind of method and apparatus being non-IMS terminal and realizing the many public user identity services of IMS.Need in system to preset a mapping table, record the corresponding relation of the mark of non-IMS terminal in non-IMS network and mark in the ims network.Simultaneously, a proxy server is introduced in non-IMS terminal and IMS network, when it receives the request message from the first kind of non-IMS terminal, inquire about the mapping table preset, generate the request message of Second Type, what wherein contain in multiple IMS public user identity corresponding to this non-IMS terminal is one or more, sends the request message of the Second Type generated to IMS Call Control Unit; When it receives the request message from the Second Type of IMS Call Control Unit, inquire about the mapping table preset, generate the request message of the first kind, wherein contain the one or more index code in multiple IMS public user identity corresponding to non-IMS terminal, send the request message of the first kind generated to non-IMS terminal.
Description
Technical field
The present invention relates to communication network, particularly relate in IMS network as non-IMS terminal realizes the method and apparatus of the many public user identity services of IMS.
Background technology
At IMS (IPMultimediaSubsystem, IP Multimedia System) in system, the mark of IMS user is divided into two kinds: private user identity (PrivateUserIdentity) and public user identity (PublicUserIdentity).Private user identity is distributed by home domain Virtual network operator, for registration, the authentication, authorization, accounting of user's registration, indicates a terminal equipment.Private user identity can not disclose usually to third party, be similar to GSM (GlobalSystemforMobilecommunications, global system for mobile communications) IMSI (InternationalMobileSubscriberIdentity, international mobile subscriber identity) number in network.Public user identity is the user ID in session, calls out for initiation session or by other users, is equivalent to telephone number, email address etc. in our life.A private user identity can have multiple public user identity, and multiple private user identity can also share a public user identity.Fig. 1 illustrates the relation between private user identity and public user identity.
Therefore, IMS is more flexible more convenient service for user brings, and serves comprising many public user identity, refers to an IMS user terminal and can have multiple IMS public user identity.Such as, an IMS terminal user can have three IMS public user identity, first be operationally between use, second be the time of having a rest use, the 3rd is for personal interest.When he goes to work, he just registers first public user identity, After Hours, and cancel register first public user identity, and register another two public user identity simultaneously.Like this, user can use different public user identity in different places or according to different purposes, and different public user identity often corresponds to different services, like this, user can enjoy diversified service, has greatly enriched Consumer's Experience.
But, for non-IMS terminal, the facility of the many public user identity services of above-mentioned IMS but cannot be enjoyed.Non-IMS terminal mentioned here, referring to cannot by himself being linked into the terminal in IMS network, and namely terminal cannot support the required flow process that defines in IMS standard, such as register flow path, calling start flow, call ending flow process etc.PSTN (PublicSwitchedTelephoneNetwork in legacy network, public switch telephone network) phone, UMTS (UniversalMobileTelecommunicationsSystem, global mobile communication system) phone all belong to non-IMS terminal.
In order to solution by no means IMS terminal be linked into the problem of IMS network, introduce MGCF (MediaGatewayControllerFunction, Media Gateway Controller entity) in IMS system, see the relevant regulations of 3GPPTS23.002.By MGCF, non-IMS terminal can be accessed by IMS network, non-IMS terminal can and IMS terminal between call out, but, non-IMS terminal cannot be registered in IMS network, namely cannot distribute IMS public user identity, and non-IMS terminal still cannot enjoy the service of IMS many public user identity.
A kind of method non-IMS terminal be linked in IMS network is described in U.S. Patent application US20070195805, make non-IMS terminal to be registered to IMS network and distribute a default public user identity, but this patent application does not disclose how to distribute multiple IMS public user identity for non-IMS terminal, more do not disclose and cannot derive how for non-IMS terminal realizes the method for the many public user identity services of IMS yet.
Summary of the invention
The present invention, in order to solve above-mentioned defect of the prior art, proposes a kind of method and apparatus being non-IMS terminal and realizing the many public user identity services of IMS.
According to a first aspect of the invention, provide a kind of in the server for realizing the method for the many public user identity services of IMS for non-IMS terminal, described server is between non-IMS terminal and IMS Call Control Unit, the first kind signaling adopted between non-IMS terminal and described server is different from the Second Type signaling of described server and the employing of IMS Call Control Unit, wherein, described method comprises: when receiving the request message from the first kind of non-IMS terminal, inquire about the mapping table preset, generate the request message of Second Type, what wherein contain in multiple IMS public user identity corresponding to this non-IMS terminal is one or more, the request message of the Second Type generated is sent to IMS Call Control Unit, when receiving the request message from the Second Type of IMS Call Control Unit, inquire about the mapping table preset, generate the request message of the first kind, wherein contain the one or more index code in multiple IMS public user identity corresponding to non-IMS terminal, send the request message of the first kind generated to non-IMS terminal.
Preferably, when above-mentioned server receives the request message from the first kind of non-IMS terminal, said method comprises further: extract the service request code in described message, the mark of non-IMS terminal in non-IMS network, one or more index code; According to above-mentioned service request code, determine the type of the request message of the Second Type of its correspondence; According to the mark of above-mentioned non-IMS terminal in non-IMS network and above-mentioned one or more index codes, inquire about the mapping table preset, determine corresponding one or more IMS public user identity; According to the type of the request message of above-mentioned Second Type, generate the message of a Second Type, wherein contain above-mentioned one or more IMS public user identity; The request message of the Second Type of above-mentioned generation is sent to IMS Call Control Unit.
Preferably, when above-mentioned server receives the request message from the Second Type of IMS Call Control Unit, said method comprises further: extract one or more IMS public user identity, type of message; According to the type of the request message of described Second Type, determine type and the request code of the message of the first kind of its correspondence; According to above-mentioned one or more IMS public user identity, by inquiring about the mapping table preset, determine a non-IMS network mark and one or more index code; According to the type of the message of the above-mentioned first kind, generate the message of a first kind, wherein contain above-mentioned request code and above-mentioned one or more index codes; The message of the first kind of above-mentioned generation is sent to the non-IMS terminal that above-mentioned non-IMS network mark is corresponding.
According to a second aspect of the invention, provide a kind of in the server for realizing the device of the many public user identity services of IMS for non-IMS terminal, described server is between non-IMS terminal and IMS Call Control Unit, the first kind signaling adopted between non-IMS terminal and described server is different from the Second Type signaling of described server and the employing of IMS Call Control Unit, wherein, this device comprises: receiving system, for receive from the first kind of non-IMS terminal request message and receive from the request message of the Second Type of IMS Call Control Unit, message conversion device, for the request message of the first kind from non-IMS terminal that will receive, by inquiring about the mapping table preset, convert the request message of Second Type to, what wherein contain in multiple IMS public user identity corresponding to this non-IMS terminal is one or more, also the request message of the Second Type from IMS Call Control Unit for receiving, by inquiring about the mapping table preset, generate the request message of the first kind, wherein contain the one or more index code in multiple IMS public user identity corresponding to non-IMS terminal, dispensing device, for sending the request message of the Second Type that message conversion device generates and sending the request message of the first kind that message conversion device generates to non-IMS terminal to IMS Call Control Unit.
Preferably, described message conversion device comprises further: extraction element, for extracting service request code, the mark of non-IMS terminal in non-IMS network, one or more index code in the request message from the first kind from non-IMS terminal received; Type of message determining device, for according to above-mentioned service request code, determines the type of the request message of the Second Type of its correspondence; Parameter determining device, for according to the mark of above-mentioned non-IMS terminal in non-IMS network and above-mentioned one or more index codes, inquires about the mapping table preset, determines corresponding one or more IMS public user identity; Message creating apparatus, for the type of the request message according to above-mentioned Second Type, generates the message of a Second Type, wherein contains above-mentioned one or more IMS public user identity.
Preferably, described message conversion device also comprises terminal determining device, and described extraction element is also for extracting one or more IMS public user identity, type of message in the request message from the Second Type from IMS Call Control Unit received; Described type of message determining device, also for the type of the request message according to described Second Type, determines type and the request code of the message of the first kind of its correspondence; Described parameter determining device, also for according to above-mentioned one or more IMS public user identity, by inquiring about the mapping table preset, determines a non-IMS network mark and one or more index code; Described message creating apparatus, also for the type of the message according to the above-mentioned first kind, generates the message of a first kind, wherein contains above-mentioned request code and above-mentioned one or more index codes; Described terminal determining device is used for the non-IMS terminal determining its correspondence according to above-mentioned non-IMS network mark.
The method and apparatus of the application of the invention, can be implemented as non-IMS terminal and provides the service of IMS many public user identity, non-IMS terminal can be allowed to enjoy the facility of IMS network, also for Virtual network operator has widened the object of service and the kind of service.
Accompanying drawing explanation
By reading the detailed description done non-limiting example referring to accompanying drawing, other features, objects and advantages of the present invention will become more obvious.
Fig. 1 is the schematic diagram of the relation in IMS system between private user identity and public user identity;
Fig. 2 realizes the process schematic of IMS many public user identity service according to a specific embodiment of the present invention for non-IMS terminal;
Fig. 3 realizes the process schematic of IMS many public user identity service according to a specific embodiment of the present invention for non-IMS terminal;
Fig. 4 realizes the process schematic of IMS many public user identity service according to a specific embodiment of the present invention for non-IMS terminal;
Fig. 5 be according to a specific embodiment of the present invention in the server for realizing the structured flowchart of the device of IMS many public user identity service for non-IMS terminal.
Embodiment
In the present invention, need in system to preset a mapping table, preserve an IMS private user identity corresponding to non-IMS terminal, multiple IMS public user identity and index code thereof.This mapping table may reside in an independent database, also may reside in an existing data storage device, such as HLR (HomelocationRegister, attaching position register), HSS (HomeSubscriberServer, home subscriber server) etc.For PSTN terminal, the way of realization of mapping table can be as shown in table 1 but be not limited to the form of table 1, the mark of PSTN terminal in legacy network is have recorded in mapping table, the IMS private user identity that this PSTN terminal is corresponding, multiple IMS public user identity that this PSTN terminal is corresponding and index code thereof.Mapping table can also be combined by multiple tables of data.
| The mark of PSTN terminal | IMS private user identity | IMS public user identity index code | IMS public user identity |
| 58541240 | 123operator.net | 1 | 34000000 |
| 58541240 | 123operator.net | 2 | Alice.smithoperator. net |
| 58541240 | 123operator.net | 3 | 24000000 |
Table 1
In non-IMS terminal, also need to define new user interface, carried out the operation to IMS network.The definition of new interface, different according to the type of the kind of non-IMS terminal and the network at place thereof.For PSTN terminal or UMTS terminal, can by defining the operation that new type of service code has come IMS network, such as:
Button " * 51 " represents all IMS public user identity that this PSTN terminal of registration is corresponding;
Button " * 51*i " represents i-th IMS public user identity that this PSTN terminal of registration is corresponding, " * 51*1 " represents that the 1st the IMS public user identity that this PSTN terminal of registration is corresponding, " * 51*1*2 " represent the 1st and the 2nd IMS public user identity that this PSTN terminal of registration is corresponding;
Button " * 52 " represents all IMS public user identity that this PSTN terminal of cancel register is corresponding;
Button " * 52*i " represents i-th IMS public user identity that this PSTN terminal of cancel register is corresponding;
Button " * 53*i* called number " represents calls out corresponding called of described called number with i-th IMS public user identity that this PSTN terminal is corresponding.
Invention introduces a proxy server, between non-IMS terminal and IMS network, this proxy server can process the signaling in the signaling of non-IMS terminal place network and IMS network, and can convert wherein a kind of signaling message to another kind of signaling message.This proxy server can be a self-existent entity, also may reside in existing network element (such as MGCF etc.).
Fig. 2 to Fig. 4 illustrates and realizes the process schematic of IMS many public user identity service according to the specific embodiment of the present invention for non-IMS terminal.In figure, non-IMS terminal is PSTN terminal, and above-mentioned proxy server is arranged in MGCF.ISUP (ISDNUserPart is adopted between PSTN terminal and MGCF, ISDN User Part) signaling, SIP signaling is adopted between P-CSCF (Proxy-CallSessionControlFunction, Proxy-Call Session Control Function) in MGCF and IMS network.Each process will be described in detail below.
Fig. 2 shows the process that PSTN terminal is registered to IMS network.After user inputs " * 51*1*2 " in PSTN terminal, then PSTN terminal can send IAM (InitialAddressMessage, an initial address message) message to the proxy server in MGCF.In this IAM message, the value of parameter CalledPartyNumber is * 51*1*2, parameter CallingPartyNumber is the mark 58541240 of this PSTN terminal in PSTN network.If do not indicate the value of CallingPartyNumber in IAM message, MGCF can by isup message INR (InformationRequest) and INF (Information) to PSTN terminal inquiry calling number.
Proxy server in MGCF, after receiving above-mentioned IAM message, if needed, can carry out certification to determine whether it has the authority using this service, but it must be noted that, verification process is not required to this PSTN terminal.Proxy server will perform following steps:
A) mark 58541240 of service request code * 51, PSTN terminal in PSTN network in IAM message is extracted, index code 1 and 2;
What b) proxy server learnt this PSTN terminal request according to service request code * 51 is registration service, determines that the sip message of its correspondence is REGISTER message;
C) according to the mark 58541240 of PSTN terminal in PSTN network and index code 1 and 2, inquire about the mapping table (as shown in table 1) preset, show that the IMS private user identity of its correspondence is 123operator.net, the IMS public user identity that these two index codes are corresponding is respectively telephone number 34000000 and email address Alice.smithoperator.;
D) according to above-mentioned sip message, IMS private user identity, the IMS public user identity determined, proxy server generates a sip message REGISTER, wherein, in this REGISTER message, the value of parameter PublicUserIdentity is the value of telephone number 34000000 and email address Alice.smithoperator, parameter PrivateUserIdentity is 123operator.net;
E) to P-CSCF forwarding step d) the REGISTER message that generates.
P-CSCF is after receiving above-mentioned REGISTER message, and the action of execution is identical with the 5.2.2.3 trifle regulation in the version 8.6.0 of standard 3GPPTS23.228.What specify in the step 2 in Fig. 2 to step 12 and above-mentioned standard is identical, and this literary composition repeats no more.When after the 200OK message that the proxy server in MGCF receives from P-CSCF, it will send Notify message to PSTN terminal, notify its registering result.Like this, PSTN terminal just completes the process of registration the 1st and the 2nd IMS public user identity.
In like manner, PSTN terminal also can the one or more IMS public user identity of cancel register.Process shown in the process of cancel register and Fig. 2 is similar.
Fig. 3 shows PSTN terminal with the 1st process that IMS public user identity makes a call.After user inputs " * 53*1* called number " in PSTN terminal, PSTN terminal sends an IAM message by the proxy server in MGCF, in this IAM message, the value of parameter CalledPartyNumber is * 53*1* called number, and parameter CallingPartyNumber is the mark 58541240 of this PSTN terminal in PSTN network.If do not indicate the value of CallingPartyNumber in IAM message, MGCF can by isup message INR (InformationRequest) and INF (Information) to PSTN terminal inquiry calling number.
Proxy server in MGCF, after receiving above-mentioned IAM message, if needed, can carry out certification to determine whether it has the authority using this service, but it must be noted that, verification process is not required to this PSTN terminal.Proxy server will perform following steps:
A) mark 58541240 of service request code * 53, PSTN terminal in PSTN network in IAM message is extracted, index code 1, called number;
What b) proxy server learnt this PSTN terminal request according to service request code * 53 is call service, determines that the sip message of its correspondence is INVITE;
C) according to the mark 58541240 of PSTN terminal in PSTN network and index code 1, inquire about the mapping table (as shown in table 1) preset, show that the IMS private user identity of its correspondence is 123operator.net, the IMS public user identity that this index code is corresponding is respectively telephone number 34000000;
D) according to above-mentioned sip message, IMS private user identity, the IMS public user identity determined, proxy server generates a sip message INVITE, wherein, in this INVITE, the value that the value of field FROM is the IMS public user identity 34000000, field TO of index code 1 correspondence is above-mentioned called number;
E) to P-CSCF forwarding step d) INVITE that generates.
P-CSCF is after receiving above-mentioned INVITE, and the action of execution is identical with 5.6 trifle regulations in the version 8.6.0 of standard 3GPPTS23.228.Like this, call out being finally routed to terminal corresponding to above-mentioned called number, for called, its calling received is from IMS public user identity 34000000.
Fig. 4 shows PSTN terminal and receives the process of calling out from IMS network with the 1st IMS public user identity.MGCF receives the INVITE from P-CSCF, and wherein the value of parameter TO field is the 1st IMS public user identity 34000000 corresponding to this PSTN terminal.Proxy server in MGCF will perform following steps:
A) IMS public user identity 34000000 is wherein extracted, and the type i NVITE of message;
B) according to type of message and parameter wherein, the isup message IAM of its correspondence and corresponding service request code * 53 is determined;
C) according to IMS public user identity 34000000, inquire about the mapping table (as shown in table 1) preset, show that the PSTN terminal iidentification of its correspondence is 58541240, the index code of this IMS public user identity 34000000 correspondence is 1;
D) according to above-mentioned isup message, index code, generate an IAM message, wherein, the value of parameter CallingPartyNumber is * 53*1* calling number;
E) to the PSTN terminal forwarding step d of 58541240 correspondences) the IAM message that generates.
Like this, PSTN terminal, after receiving above-mentioned message, just knows that this calling is calling the 1st IMS public user identity.
Fig. 5 illustrates in above-mentioned proxy server for realizing the structured flowchart of the device of the many public user identity services of IMS for non-IMS terminal.
Receiving system 501 for receive from PSTN terminal ISUP request message and receive from the sip request message of P-CSCF; The ISUP request message from PSTN terminal of message conversion device 502 for receiving, by inquiring about the mapping table preset, convert sip request message to, what wherein contain in multiple IMS public user identity corresponding to this PSTN terminal is one or more, the sip request message from P-CSCF of message conversion device 502 also for receiving, by inquiring about the mapping table preset, generate ISUP request message, wherein contain the one or more index code in multiple IMS public user identity corresponding to PSTN terminal; Dispensing device 508, for sending the sip request message that message conversion device generates and the ISUP request message sending message conversion device generation to PSTN terminal to P-CSCF.
Wherein, message conversion device 502 comprises further: extraction element 503, type of message determining device 504, parameter determining device 505, message creating apparatus 506, terminal determining device 507.
When receiving system 501 receives the ISUP request message from PSTN terminal, extraction element 503 for extracting service request code, the mark of PSTN terminal in PSTN network, one or more index code from the ISUP request message received; Type of message determining device 504, for according to above-mentioned service request code, determines the type of the sip request message of its correspondence; Parameter determining device 505, for according to the mark of above-mentioned PSTN terminal in PSTN network and above-mentioned one or more index codes, inquires about the mapping table preset, and determines corresponding one or more IMS public user identity; Message creating apparatus 506, for the type according to above-mentioned sip request message, generates a sip message, wherein contains above-mentioned one or more IMS public user identity.
When receiving system 501 receives the sip request message from P-CSCF, extraction element 503 for from receive from extracting one or more IMS public user identity, type of message in the sip request message of P-CSCF; Type of message determining device 504, for the type according to described sip request message, determines type and the request code of the isup message of its correspondence; Parameter determining device 505, for according to above-mentioned one or more IMS public user identity, by inquiring about the mapping table preset, determines a PSTN network identity and one or more index code; Message creating apparatus 506, for the type according to above-mentioned isup message, generates an isup message, wherein contains above-mentioned request code and above-mentioned one or more index codes; Terminal determining device 507 for determining the PSTN terminal of its correspondence according to above-mentioned PSTB network identity, for indicating the PSTN terminal that will send message to dispensing device 508.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the appended claims.
Claims (6)
1. one kind in the server for realizing the method for IMS many public user identity service for non-IMS terminal, described server is between non-IMS terminal and IMS Call Control Unit, the first kind signaling adopted between non-IMS terminal and described server is different from the Second Type signaling of described server and the employing of IMS Call Control Unit, it is characterized in that, described method comprises:
When receiving the request message from the first kind of non-IMS terminal, inquire about the mapping table preset, generate the request message of Second Type, what wherein contain in multiple IMS public user identity corresponding to this non-IMS terminal is one or more, sends the request message of the Second Type generated to IMS Call Control Unit;
When receiving the request message from the Second Type of IMS Call Control Unit, inquire about the mapping table preset, generate the request message of the first kind, wherein contain the one or more index code in multiple IMS public user identity corresponding to non-IMS terminal, send the request message of the first kind generated to non-IMS terminal.
2. method according to claim 1, is characterized in that, when described server receives the request message from the first kind of non-IMS terminal, the method comprises further:
-extract the service request code in described message, the mark of non-IMS terminal in non-IMS network, one or more index code;
-according to above-mentioned service request code, determine the type of the request message of the Second Type of its correspondence;
-according to the mark of above-mentioned non-IMS terminal in non-IMS network and above-mentioned one or more index codes, inquire about the mapping table preset, determine corresponding one or more IMS public user identity;
-according to the type of the request message of above-mentioned Second Type, generate the message of a Second Type, wherein contain above-mentioned one or more IMS public user identity;
-request message of the Second Type of above-mentioned generation is sent to IMS Call Control Unit.
3. method according to claim 1 and 2, is characterized in that, when described server receives the request message from the Second Type of IMS Call Control Unit, the method comprises further:
-extract one or more IMS public user identity, type of message;
-according to the type of the request message of described Second Type, determine type and the request code of the message of the first kind of its correspondence;
-according to above-mentioned one or more IMS public user identity, by inquiring about the mapping table preset, determine a non-IMS network mark and one or more index code;
-according to the type of the message of the above-mentioned first kind, generate the message of a first kind, wherein contain above-mentioned request code and above-mentioned one or more index codes;
-identify to above-mentioned non-IMS network the message that corresponding non-IMS terminal sends the first kind of above-mentioned generation.
4. one kind in the server for realizing the device of IMS many public user identity service for non-IMS terminal, described server is between non-IMS terminal and IMS Call Control Unit, the first kind signaling adopted between non-IMS terminal and described server is different from the Second Type signaling of described server and the employing of IMS Call Control Unit, it is characterized in that, described device comprises:
Receiving system, for receive from the first kind of non-IMS terminal request message and receive from the request message of the Second Type of IMS Call Control Unit;
Message conversion device, for the request message of the first kind from non-IMS terminal that will receive, by inquiring about the mapping table preset, convert the request message of Second Type to, what wherein contain in multiple IMS public user identity corresponding to this non-IMS terminal is one or more, also the request message of the Second Type from IMS Call Control Unit for receiving, by inquiring about the mapping table preset, generate the request message of the first kind, wherein contain the one or more index code in multiple IMS public user identity corresponding to non-IMS terminal,
Dispensing device, for sending the request message of the Second Type that message conversion device generates and sending the request message of the first kind that message conversion device generates to non-IMS terminal to IMS Call Control Unit.
5. device according to claim 4, is characterized in that, message conversion device comprises further:
Extraction element, for extracting service request code, the mark of non-IMS terminal in non-IMS network, one or more index code in the request message from the first kind from non-IMS terminal received;
Type of message determining device, for according to above-mentioned service request code, determines the type of the request message of the Second Type of its correspondence;
Parameter determining device, for according to the mark of above-mentioned non-IMS terminal in non-IMS network and above-mentioned one or more index codes, inquires about the mapping table preset, determines corresponding one or more IMS public user identity;
Message creating apparatus, for the type of the request message according to above-mentioned Second Type, generates the message of a Second Type, wherein contains above-mentioned one or more IMS public user identity.
6. device according to claim 5, is characterized in that, message conversion device also comprises terminal determining device,
Described extraction element is also for extracting one or more IMS public user identity, type of message in the request message from the Second Type from IMS Call Control Unit received;
Described type of message determining device, also for the type of the request message according to described Second Type, determines type and the request code of the message of the first kind of its correspondence;
Described parameter determining device, also for according to above-mentioned one or more IMS public user identity, by inquiring about the mapping table preset, determines a non-IMS network mark and one or more index code;
Described message creating apparatus, also for the type of the message according to the above-mentioned first kind, generates the message of a first kind, wherein contains above-mentioned request code and above-mentioned one or more index codes;
Described terminal determining device is used for the non-IMS terminal determining its correspondence according to above-mentioned non-IMS network mark.
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| CN104363587B (en) * | 2014-11-19 | 2018-07-13 | 中国联合网络通信集团有限公司 | A kind of method of calling and calling system |
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| CN1984004A (en) * | 2006-04-20 | 2007-06-20 | 华为技术有限公司 | Method for accessing IMS network to mobile circuit domain user and its registering method |
| CN101325590A (en) * | 2007-06-15 | 2008-12-17 | 中兴通讯股份有限公司 | Method for implementation terminal call of IP multimedia subsystem central control business |
| CN101485157A (en) * | 2006-04-13 | 2009-07-15 | 泰克莱克公司 | Methods, systems, and computer program products for providing internet protocol multimedia subsystem(ims) registration services for non-ims devices |
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| US8681960B2 (en) * | 2007-08-30 | 2014-03-25 | 8631654 Canada Inc. | Extending originating capabilities of a subscriber to devices in any telephony network |
| US8798095B2 (en) * | 2007-10-11 | 2014-08-05 | At&T Intellectual Property I, L.P. | Method and apparatus for call processing for SIP and ISUP interworking |
| CN101803275B (en) * | 2007-10-31 | 2012-07-25 | 朗讯科技公司 | Method for generating a real time billing information in a packet switching based network and network element |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1747470A (en) * | 2004-09-07 | 2006-03-15 | 华为技术有限公司 | Service signal processing system and method for group domain |
| CN101485157A (en) * | 2006-04-13 | 2009-07-15 | 泰克莱克公司 | Methods, systems, and computer program products for providing internet protocol multimedia subsystem(ims) registration services for non-ims devices |
| CN1984004A (en) * | 2006-04-20 | 2007-06-20 | 华为技术有限公司 | Method for accessing IMS network to mobile circuit domain user and its registering method |
| CN101325590A (en) * | 2007-06-15 | 2008-12-17 | 中兴通讯股份有限公司 | Method for implementation terminal call of IP multimedia subsystem central control business |
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