CN1767482B - User registering method for Internet protocol multimedia subsystem - Google Patents
User registering method for Internet protocol multimedia subsystem Download PDFInfo
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- CN1767482B CN1767482B CN200410080984.5A CN200410080984A CN1767482B CN 1767482 B CN1767482 B CN 1767482B CN 200410080984 A CN200410080984 A CN 200410080984A CN 1767482 B CN1767482 B CN 1767482B
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Abstract
This invention discloses a method for the register of users of a multimedia subsystem of the Internet protocol, in which, the IMS network side sends a register trigger requirement to a user device, which receives the request to send a register requirement containing its own ID to the IMS network side to register said user the one of IMS, in which, users can register in IMS timely to receive service of the multimedia service by the IMS domain.
Description
Technical field
The present invention relates to network user's registration technology field, be specifically related to a kind of user registering method of internet protocol multimedia subsystem.
Background technology
Along with development of Communication Technique, single voice communication mode can not satisfy people's communication requirement.In order to satisfy the communication requirement that people improve day by day, internet protocol multimedia subsystem (IMS InternetProtocol Multimedia Subsystem) arises at the historic moment.IMS can be applied to mobile radio communication and fixed communication network, now IMS is carried out brief description.
The IMS network configuration as shown in Figure 1, IMS is based on the professional control domain on the packet carrying network, and the major function entity of IMS comprises: network functional entities such as proxy call conversation control function entity (P-CSCF) 101, query call conversation control function entity (I-CSCF) 102, service call session control function entity (S-CSCF) 103, application server (AS) 104 and home subscriber server (HSS) 105.UE 107 inserts the P-CSCF 101 of IMS by packet carrying network 106.
Wherein, P-CSCF 101 carries out Signalling exchange as subscriber equipment (UE) 107 first contact point on IMS with UE 107, and described signaling is carried out being transmitted to I-CSCF 102 or S-CSCF 103 after the respective handling; The I-CSCF 102 main network securitys of being responsible for; 103 of S-CSCF are the core business controlled entities of IMS, preserve user signing contract information, recording user call state and call out control; S-CSCF 103 links to each other with AS 104, and the different AS of different S-CSCF connection, in order to support that IMS provides various multimedia service services to the user; HSS 105 preserves user signing contract information and user state information, is used to support the processing of each network entity to calling and session.
At present, the user only just can carry out corresponding IMS business after being registered to IMS, comprises the professional and reception IMS business of IMS of initiating.The flow process that the user initiatively initiates IMS registration as shown in Figure 2, Fig. 2 is user's registered ims flow chart of prior art, this register flow path may further comprise the steps:
After step 201:UE and Packet Based Network are set up Internet protocol (IP) and be connected, obtain the address information of P-CSCF, and send login request message to P-CSCF according to this address information.Comprise the user ID of UE, the domain names at UE place and the information such as IP address of UE in the register requirement.
Step 202:P-CSCF sends to I-CSCF with described register requirement after treatment.
Step 203:I-CSCF selects a S-CSCF by communicating alternately with HSS in a plurality of S-CSCF, as the S-CSCF of this user's registration.
Step 204:I-CSCF sends to selecteed S-CSCF with register requirement.
Step 205:S-CSCF sends the registration message comprise self title and UE user ID to HSS, after HSS receives this registration message, S-CSCF name and user ID that this message comprises are preserved as user's log-on message, and return enrollment response message to S-CSCF.Like this, HSS just knows that UE registers in the S-CSCF of IMS.
Step 206:S-CSCF sends the user profile download request to HSS, after HSS receives this download request, returns the response message that comprises user signing contract information to S-CSCF; After S-CSCF receives described response message, preserve the user signing contract information in the message.
Step 207:S-CSCF carries out corresponding business control according to the user signing contract information of preserving, to judge whether UE is adapted at registering among the IMS and carrying out the IMS business, if be fit to, enters step 208; Otherwise, the register requirement of refusal UE, and return registration failure message to UE.
The data-handling capacity, data transmission bauds of UE etc. specifically considered in above-mentioned professional control operation, whether is adapted among the IMS registration and carries out corresponding IMS business to judge UE.
Step 208:S-CSCF sends registration confirmation message to I-CSCF.
Step 209:I-CSCF receives after the registration confirmation message of S-CSCF, sends registration confirmation message to P-CSCF.
Step 210:P-CSCF receives after the registration confirmation message of I-CSCF, sends registration confirmation message to UE.
Through behind the aforesaid operations, UE has just finished the IMS registration, can carry out corresponding IMS business in follow-up operation.
By the above as can be seen, if the user wishes to carry out the IMS business, have only initiatively and initiate register requirement to IMS, the IMS network side then can initiatively not send the related news of request user registration to the user, so that the user can initiate register requirement after receiving this message; And only after the user finished IMS registration, the S-CSCF among the IMS just can be known this user's CAMEL-Subscription-Information, and then provided the multimedia service service for registered IMS user.If but the user does not register in IMS, and when this user in a certain IMS operation flow when called, network can only select a S-CSCF to provide professional for this user, this called subscriber can't accept the multimedia service service by IMS, S-CSCF can only send to service request non-IMS territory, provide non-multimedia service service by non-IMS territory for this user, as: business such as voice are provided for the user by circuit domain.This will have a strong impact on the QoS of IMS, and therefore user satisfaction also can reduce.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of user registering method of internet protocol multimedia subsystem, unregistered user initiatively initiates register requirement by the IMS side direction, and the user is in time registered in IMS, so that this user can accept the multimedia service service by the IMS territory.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of user registering method of internet protocol multimedia subsystem, this method may further comprise the steps:
The a.IMS network side is received the service request that contains CSI called subscriber identification from the calling party, the IMS network side is judged current the registration at IMS of subscriber equipment of described CSI called subscriber identification correspondence, the I-CSCF of IMS network side selects a S-CSCF, and described service request is sent to selected S-CSCF; After selecteed S-CSCF registers the user profile of described subscriber equipment to HSS, if self there is not the CAMEL-Subscription-Information of described subscriber equipment, download from HSS then that the CAMEL-Subscription-Information of this subscriber equipment and HSS are known in advance and the static state or the dynamic IP addressing of this subscriber equipment of preserving, and send the registration trigger request to this subscriber equipment according to the static state or the dynamic IP addressing of this subscriber equipment that is obtained; Otherwise, directly send the registration trigger request to this subscriber equipment;
B. after subscriber equipment is received the registration trigger request, send the register requirement comprise self user ID to the IMS network side;
The c.IMS network side is IMS user with above-mentioned user equipment registration;
Wherein, described HSS is known and the dynamic IP addressing of preserving this subscriber equipment comprises in advance:
A211. the packet carrying network gateway receives that subscriber equipment sends set up the IP connection request after, be known as the dynamic IP addressing of this user equipment allocation, and send the IP address that comprises this subscriber equipment institute respective user sign and IP address to HSS and obtain notice;
After a212.HSS receives described notice, preserve described IP address and send push-notification-answer to the packet carrying network gateway.
Wherein, described S-CSCF to the method that subscriber equipment sends the registration trigger request is:
S-CSCF sends the registration triggering request of supporting the Session Initiation Protocol form by the IP bearer network to the user.
Wherein, if after described subscriber equipment is successfully set up the IP connection, send release IP connection request to the packet carrying network gateway, this method is further comprising the steps of:
A221. the packet carrying network gateway is deleted described user device IP address, and sends the IP address release notice that comprises this subscriber equipment institute respective user sign and IP address to HSS;
A222.HSS receives the described user device IP address of described notice back deletion, and sends push-notification-answer to the packet carrying network gateway; After the notified response of packet carrying network gateway, send the response of release IP connection request to subscriber equipment.
Among the step b, subscriber equipment to the method that the IMS network side sends register requirement is:
The subscriber equipment selecteed S-CSCF in the IMS network side that receives the registration trigger request sends the IMS register requirement.
Among the step c, described IMS network side is that IMS user's method may further comprise the steps with user equipment registration:
After selecteed S-CSCF receives the register requirement of subscriber equipment transmission in the c1.IMS network side, the log-on message of this subscriber equipment is registered to HSS;
C2.S-CSCF judges that according to the CAMEL-Subscription-Information of subscriber equipment whether subscriber equipment is adapted at the registration of IMS network side, if be fit to, just sends accreditation verification to subscriber equipment; Otherwise, the register requirement of refusing user's equipment.
Among the step c1, described S-CSCF with the log-on message of subscriber equipment to the method for HSS registration is:
Described S-CSCF sends to HSS and comprises the corresponding registration message that identifies of self title and subscriber equipment institute, HSS preserves S-CSCF name and user ID that this registration message comprises as the IMS log-on message of subscriber equipment, return enrollment response message to S-CSCF again.
Among the step c2, described S-CSCF to the method that subscriber equipment sends accreditation verification is: S-CSCF sends accreditation verification via I-CSCF, P-CSCF to subscriber equipment.
Compared with prior art, the user registering method of internet protocol multimedia subsystem provided by the present invention, the IMS network side sends the registration trigger request to subscriber equipment; After subscriber equipment is received the registration trigger request, send the register requirement comprise self user ID to the IMS network side; The IMS network side is IMS user with described user equipment registration.The inventive method is initiatively initiated register requirement by the IMS network side to unregistered user, and the user is in time registered in IMS, so that this user can accept the multimedia service service by the IMS territory, improves user satisfaction.
Description of drawings
Fig. 1 is the networking diagram of IMS in Packet Based Network;
Fig. 2 is user's registered ims flow chart of prior art;
Fig. 3 is that the IMS network side of the technology of the present invention triggers user's register flow path figure;
Fig. 4 obtains flow chart for user's dynamic IP addressing of the technology of the present invention;
Fig. 5 is that user's dynamic IP addressing of the technology of the present invention discharges flow chart.
Embodiment
The present invention proposes a kind of user registering method of internet protocol multimedia subsystem, the IMS network side sends the registration trigger request to subscriber equipment; After subscriber equipment is received the registration trigger request, send the register requirement comprise self user ID to the IMS network side; The IMS network side is IMS user with described user equipment registration.
Below in conjunction with drawings and the specific embodiments to the detailed description of the invention.
When the user who does not register in IMS becomes the callee of IMS business, the IMS network side need initiatively trigger the process that this called subscriber carries out the IMS registration, the flow process of entire I MS network side triggering user registration as shown in Figure 3, Fig. 3 is that the IMS network side of the technology of the present invention triggers user's register flow path figure, and this flow process comprises following steps:
Step 301:I-CSCF receives the business request information of being transmitted by P-CSCF, and this service request can come from various user terminals; Also can come from AS.Comprise CSI called subscriber identification in the described service request.
Step 302:I-CSCF selects a S-CSCF by communicating alternately with HSS in a plurality of S-CSCF, as S-CSCF professional and that register is provided for this called subscriber.
Particularly, provide professional for described user and the S-CSCF that registers can be selected by HSS or I-CSCF.At first, I-CSCF sends the place information inquiry request to HSS, provides S-CSCF name professional and that register to be known as the user.After HSS receives described query requests, the log-on message of this user of inquiry in IMS in self database; But in IMS, do not register, so just can not preserve the relevant information of registering on this user certain S-CSCF in IMS among the HSS because this user is current.
Like this, the user IMS log-on message that HSS just preserves according to self knows that the user is current and does not register that HSS then returns unregistered indication to I-CSCF, does not register to inform that I-CSCF user is current in the S-CSCF of IMS in the S-CSCF of IMS.Simultaneously, if preserve the S-CSCF name of once registering before the user among the HSS, this S-CSCF name can be sent to I-CSCF; Perhaps HSS can select a S-CSCF that can satisfy described service request, and this S-CSCF name is sent to I-CSCF.
If HSS does not return S-CSCF name to I-CSCF, will return the ability information of each S-CSCF in the IMS network to I-CSCF, as: (service quality) QoS that S-CSCF can satisfy; I-CSCF initiatively selects a S-CSCF that can satisfy described service request according to the ability information of S-CSCF, as S-CSCF professional and that register is provided for the user.
Through aforesaid operations, I-CSCF has determined that finally a S-CSCF is as S-CSCF professional and that register is provided for the user.
Step 303:I-CSCF carries out domain name mapping to selected S-CSCF name, obtains this S-CSCF address, and described service request is sent to described S-CSCF.
Step 304:S-CSCF sends the registration message comprise self title and described user ID to HSS, and HSS preserves S-CSCF name and the user ID in the described registration message of receiving, and returns enrollment response message to S-CSCF.Like this, HSS just know this user follow-up multimedia service by this S-CSCF control and provide.
Step 305:S-CSCF judges whether self has described user's CAMEL-Subscription-Information, if do not have, then sends the user profile download request to HSS, and this download request comprises user ID.After HSS receives download request, return the response message that comprises this user signing contract information, wherein also comprise user's IP address to S-CSCF; After S-CSCF receives described response message, preserve described user signing contract information and IP address.
Step 306:S-CSCF sends the registration triggering request according to the IP address that obtains from HSS to the user, the user is received initiate IMS after this registration trigger request to register.
Above-mentioned registration triggering request can send to the user by the IP bearer network, also can send to the user by the bearer network of other form; In addition, the registration triggering request can adopt the Session Initiation Protocol form to send to the user, also can adopt other protocol format to send to the user, as long as the user can initiate the IMS registration after receiving this registration trigger request.
Step 307: after the user receives the registration trigger request, obtain the address information of P-CSCF, and send login request message to P-CSCF according to this address information by packet carrying network.Comprise information such as the domain names at user ID, user place and IP address in the register requirement.
Step 308:P-CSCF sends to I-CSCF with described register requirement after treatment.
After step 309:I-CSCF receives register requirement, register requirement is sent to the S-CSCF that selects in the step 302.
Step 310:S-CSCF sends the registration message comprise self title and described user ID to HSS, after HSS receives this registration message, S-CSCF name and user ID that this message comprises are preserved as user's log-on message, and return enrollment response message to S-CSCF.Like this, HSS just knows that the user registers in the S-CSCF of IMS.
Step 311:S-CSCF carries out corresponding business control according to the user signing contract information of preserving, to judge whether the user is adapted at registering among the IMS and carrying out the IMS business, if be fit to, enters step 312; Otherwise, the register requirement of refusing user's, and return registration failure message to UE.
The data-handling capacity, data transmission bauds of UE etc. specifically considered in above-mentioned professional control operation, whether is adapted among the IMS registration and carries out corresponding IMS business to judge UE.
Step 312:S-CSCF sends registration confirmation message to I-CSCF.
Step 313:I-CSCF receives after the registration confirmation message of S-CSCF, sends registration confirmation message to P-CSCF.
Step 314:P-CSCF receives after the registration confirmation message of I-CSCF, sends registration confirmation message to the user.
Through behind the aforesaid operations, the user has just finished the IMS registration.Like this, the S-CSCF of the current registration of user just can provide the multimedia service service to this user by the IMS territory, comprise that receiving current IMS calls out, and this user initiates or the follow-up IMS business of reception.
For the user of unregistered IMS, to call out if want to receive IMS, its prerequisite is to have set up the IP grouping to connect, promptly UE has obtained the IP address of dynamic assignment or static allocation.Simultaneously, it is the IP address that S-CSCF is known UE that the IMS network side initiatively triggers the prerequisite that the user initiates IMS registration, and S-CSCF could register triggering request with IMS by Packet Based Network and send to UE like this.
In addition, from the step 305 of Fig. 3, can see that S-CSCF knows the IP address of UE from HSS, so need to know in advance and preserve the IP address of UE among the HSS.For the UE that uses static ip address (as: in the Ipv6 network), HSS only need fix the static ip address of preserving UE and get final product; For the UE that uses dynamic IP addressing (as: in the Ipv4 network), may be assigned with different IP addresses when setting up the IP connection with packet carrying network, so HSS also must dynamically obtain and preserve the IP address of UE because of it at every turn.Described dynamic IP addressing is obtained flow process as shown in Figure 4, and Fig. 4 obtains flow chart for user's dynamic IP addressing of the technology of the present invention, and this flow process may further comprise the steps:
Step 401:UE sends to the packet carrying network gateway and sets up the IP connection request.
Step 402: after the packet carrying network gateway is received and set up the IP connection request, it directly is UE distributing IP address, or to obtain other entity be the UE IP address allocated, and send the IP address to HSS and obtain notice, describedly obtains user ID and the IP address allocated that notice comprises this UE.
Step 403:HSS preserves the IP address of UE, and returns push-notification-answer to the packet carrying network gateway.
Step 404: after the notified response of packet carrying network gateway, send the IP connection request of setting up that comprises institute distributing IP address to UE and respond.After UE receives this response, just can carry out follow-up radio communication according to the IP address that is assigned to.
By aforesaid operations as seen, after HSS obtains the IP address of dynamic assignment at UE, can in time know the IP address of this UE, and in download user CAMEL-Subscription-Information message with IP address notification S-CSCF, to support the registration operation of UE in IMS.
For guaranteeing the validity of the IP address information of UE among the HSS, after UE stopped the grouping connection and discharges dynamic IP addressing, the Packet Based Network gateway need notify this IP address of terminal of HSS to discharge.Concrete operating process as shown in Figure 5, Fig. 5 is that user's dynamic IP addressing of the technology of the present invention discharges flow chart, this flow process may further comprise the steps:
Step 501:UE sends to the packet carrying network gateway and discharges the IP connection request.
Step 502: after the packet carrying network gateway is received release IP connection request, the IP address of deleting this UE, and to HSS transmission IP address release notice, described release notice comprises user ID and the current IP address with release of this UE.
Step 503:HSS deletes the IP address of UE, and returns push-notification-answer to the packet carrying network gateway.
Step 504: after the notified response of packet carrying network gateway, send the response of release IP connection request to UE.After UE receives this response, can not carry out any Packet Service and IMS business again.
From the above, the user registering method of internet protocol multimedia subsystem provided by the present invention, initiatively initiate register requirement by the IMS network side to unregistered user, the user is in time registered in IMS, so that this user can accept the multimedia service service by the IMS territory, improve user satisfaction.The above only is process of the present invention and method embodiment, in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is not equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the user registering method of an internet protocol multimedia subsystem is characterized in that, this method may further comprise the steps:
A. internet protocol multimedia subsystem IMS network side is received the service request that contains CSI called subscriber identification from the calling party, the IMS network side is judged current the registration at IMS of subscriber equipment of described CSI called subscriber identification correspondence, the query call conversation control function entity I-CSCF of IMS network side selects a service call session control function entity S-CSCF, and described service request is sent to selected S-CSCF; After selecteed S-CSCF registers the user profile of described subscriber equipment to home subscriber server HSS, if self there is not the CAMEL-Subscription-Information of described subscriber equipment, download from HSS then that the CAMEL-Subscription-Information of this subscriber equipment and HSS are known in advance and the static state or the dynamic IP addressing of this subscriber equipment of preserving, and send the registration trigger request to this subscriber equipment according to the static state or the dynamic IP addressing of this subscriber equipment that is obtained; Otherwise, directly send the registration trigger request to this subscriber equipment;
B. after subscriber equipment is received the registration trigger request, send the register requirement comprise self user ID to the IMS network side;
The c.IMS network side is IMS user with above-mentioned user equipment registration;
Wherein, described HSS is known and the dynamic IP addressing of preserving this subscriber equipment comprises in advance:
A211. the packet carrying network gateway receives that subscriber equipment sends set up the IP connection request after, be known as the dynamic IP addressing of this user equipment allocation, and send the IP address that comprises this subscriber equipment institute respective user sign and IP address to HSS and obtain notice;
After a212.HSS receives described notice, preserve described IP address and send push-notification-answer to the packet carrying network gateway.
2. the method for claim 1 is characterized in that, described S-CSCF to the method that subscriber equipment sends the registration trigger request is:
S-CSCF sends the registration triggering request of supporting the Session Initiation Protocol form by the IP bearer network to the user.
3. the method for claim 1 is characterized in that, if after described subscriber equipment is successfully set up the IP connection, sends release IP connection request to the packet carrying network gateway, and this method is further comprising the steps of:
A221. the packet carrying network gateway is deleted described user device IP address, and sends the IP address release notice that comprises this subscriber equipment institute respective user sign and IP address to HSS;
A222.HSS receives the described user device IP address of described notice back deletion, and sends push-notification-answer to the packet carrying network gateway; After the notified response of packet carrying network gateway, send the response of release IP connection request to subscriber equipment.
4. the method for claim 1 is characterized in that, among the step b, subscriber equipment to the method that the IMS network side sends register requirement is:
The subscriber equipment selecteed S-CSCF in the IMS network side that receives the registration trigger request sends the IMS register requirement.
5. method as claimed in claim 4 is characterized in that, among the step c, described IMS network side is that IMS user's method may further comprise the steps with user equipment registration:
After selecteed S-CSCF receives the register requirement of subscriber equipment transmission in the c1.IMS network side, the log-on message of this subscriber equipment is registered to HSS;
C2.S-CSCF judges that according to the CAMEL-Subscription-Information of subscriber equipment whether subscriber equipment is adapted at the registration of IMS network side, if be fit to, just sends accreditation verification to subscriber equipment; Otherwise, the register requirement of refusing user's equipment.
6. method as claimed in claim 5 is characterized in that, among the step c1, described S-CSCF with the log-on message of subscriber equipment to the method for HSS registration is:
Described S-CSCF sends to HSS and comprises the corresponding registration message that identifies of self title and subscriber equipment institute, HSS preserves S-CSCF name and user ID that this registration message comprises as the IMS log-on message of subscriber equipment, return enrollment response message to S-CSCF again.
7. method as claimed in claim 5 is characterized in that, among the step c2, described S-CSCF to the method that subscriber equipment sends accreditation verification is: S-CSCF sends accreditation verification via I-CSCF, P-CSCF to subscriber equipment.
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Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100388685C (en) | 2005-08-30 | 2008-05-14 | 华为技术有限公司 | Method of implementing IMS registration triggering in IP multimedia subsystem |
| EP1892918B1 (en) * | 2006-08-23 | 2010-10-27 | Alcatel Lucent | Method for registration of a plurality of "permanently registered users " in an IMS subsystem of an NGN system |
| CN101087336B (en) * | 2006-10-20 | 2010-05-19 | 中兴通讯股份有限公司 | IP central user switching system and service implementation method |
| CN100442745C (en) * | 2006-11-10 | 2008-12-10 | 华为技术有限公司 | Universal registration method and system |
| WO2008058568A1 (en) * | 2006-11-13 | 2008-05-22 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement in an internet protocol multimedia subsystem |
| CN101267380B (en) * | 2007-03-15 | 2010-12-08 | 中兴通讯股份有限公司 | Method for user data update in central service of IP multimedia subsystem |
| CN101277473B (en) | 2007-03-31 | 2012-08-08 | 华为技术有限公司 | Method, terminal and network equipment for altering state of packet switching field |
| CN101282572B (en) * | 2007-04-04 | 2012-07-18 | 中国电信股份有限公司 | Automatic log-on method for non-register IMS user as called one |
| CN101043526B (en) * | 2007-04-30 | 2010-08-04 | 华为技术有限公司 | Method, apparatus and system for processing message in IMS network |
| CN101159761B (en) * | 2007-10-29 | 2011-12-07 | 中兴通讯股份有限公司 | Method of processing login state subscription |
| AT506619B1 (en) * | 2008-03-21 | 2015-07-15 | Human Bios Gmbh | PROCESS FOR THE TEMPORARY PERSONALIZATION OF A COMMUNICATION DEVICE |
| CN101841801B (en) * | 2009-03-16 | 2012-12-26 | 中国移动通信集团公司 | Methods and systems for registration and communication in IMS network and user terminal |
| CN102025695A (en) * | 2009-09-11 | 2011-04-20 | 中兴通讯股份有限公司 | Method, equipment and system for recognizing PUI (average power utilization index) type |
| JP5342511B2 (en) * | 2010-06-16 | 2013-11-13 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication method and call session control server device |
| CN103067906B (en) * | 2012-12-07 | 2015-08-12 | 大唐移动通信设备有限公司 | In IMS architecture, S-CSCF is to the store method of user signing contract information |
| CN103906225B (en) * | 2012-12-28 | 2018-02-23 | 中国电信股份有限公司 | IMS terminal registers storm processing method and edge access control device |
| CN107579945B (en) * | 2016-07-04 | 2021-05-04 | 中国移动通信有限公司研究院 | IMS service automatic opening method, device and network element |
| CN106060902B (en) * | 2016-07-07 | 2019-07-16 | 中国联合网络通信集团有限公司 | Terminal access method and system based on gateway |
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| JP2003309588A (en) * | 2002-04-17 | 2003-10-31 | Nakayo Telecommun Inc | Ip communication system urging ip address registration by incoming call of number display service, and gate keeper and terminal device constituting the ip communication system |
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| JP2003309588A (en) * | 2002-04-17 | 2003-10-31 | Nakayo Telecommun Inc | Ip communication system urging ip address registration by incoming call of number display service, and gate keeper and terminal device constituting the ip communication system |
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