WO2008095440A1 - Procédé, système de communication et dispositif pour acquérir et fournir un numéro msisdn - Google Patents

Procédé, système de communication et dispositif pour acquérir et fournir un numéro msisdn Download PDF

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Publication number
WO2008095440A1
WO2008095440A1 PCT/CN2008/070214 CN2008070214W WO2008095440A1 WO 2008095440 A1 WO2008095440 A1 WO 2008095440A1 CN 2008070214 W CN2008070214 W CN 2008070214W WO 2008095440 A1 WO2008095440 A1 WO 2008095440A1
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Prior art keywords
domain
msisdn
csi terminal
csi
request
Prior art date
Application number
PCT/CN2008/070214
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English (en)
Chinese (zh)
Inventor
Lili Yang
Hengliang Zhang
Peili Xu
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Huawei Technologies Co., Ltd.
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008095440A1 publication Critical patent/WO2008095440A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method for acquiring and providing an MSISDN number, a communication system, an HSS, an AS, a CSCF, and a CSI terminal.
  • IP Internet Protocol Multimedia Subsystem
  • IMS IP Multimedia Subsystem
  • WCDMA Wideband Code Division Multiple Access
  • 3GPP 3rd Generation Partnership Project
  • the IMS uses the IP packet domain as the bearer channel for its control signaling and media transmission, and uses the Session Initial Protocol (SIP) as the call control signaling.
  • SIP Session Initial Protocol
  • the user identity information in the IMS network is in the format of a SIP URI (Uniform Resource Identifier) or a Tel (Telephone) URI.
  • SIP URI Uniform Resource Identifier
  • Tel Tel
  • IMS IMS user subscription data is centrally managed in the Home Subscriber Server (HSS), and the service is served by the application server (AS,
  • HSS Home Subscriber Server
  • AS application server
  • Session control is performed by the Serving-Call Session Control Function (S-CSCF).
  • S-CSCF Serving-Call Session Control Function
  • the user identities in the IMS network are called public user identities, which are the identities used to request communication with other users.
  • Circuit Switched (CS) and Combining CS and IMS services (CSI) are a research topic in the current 3GPP standards. This topic focuses on how to combine 3G CS domain services with IMS domain services.
  • the main research content of the first phase (CSI phase 1) studied in this topic is how to associate the CS domain call of the CS IMS dual mode terminal with the session of the IMS domain.
  • the terminal of CSI phase 1 uses the CS domain preferentially due to its limited capacity. Host its real-time voice service.
  • the prior art provides a solution for implementing interworking between a CSI terminal and an IMS terminal.
  • the solution is to set a service logic control function entity CSI AS on the CSI terminal side, and after receiving the session request from the IMS terminal, the function entity splits the session with multiple media components into sessions containing real-time media components according to related information. And sessions that contain non-real-time media components. Then judge according to the relevant information, or choose to terminate the real-time session in the CS domain, or terminate the non-real-time session in the IMS domain.
  • the solution specifically includes the following processes:
  • Step 101 The IMS terminal initiates an IMS session request to the CSI terminal, where the request includes real-time services and non-real-time services.
  • Step 102 The IMS entity on the IMS side forwards the request to the CSI AS on the CSI terminal side.
  • Step 103 The CSI AS performs business logic processing according to the related information, and separates the session request.
  • Step 104 The CSI AS sends a real-time voice session request to the Media Gateway Control Function (MGCF, Media Gateway Control Function).
  • MGCF Media Gateway Control Function
  • Step 105 After receiving the session request message, the MGCF initiates a CS call to the CSI terminal.
  • Step 107 The CSI terminal sends a connect message of the CS to the MGCF.
  • Step 108 The MGCF sends a 200 OK response message of the voice session to the CSI.
  • Step 109 The CSI terminal sends a 200 OK response message.
  • the response message contains only the media information of the MSRP.
  • Step 110 The CSI AS merges the CS call from the CSI terminal with the IMS session.
  • Step 111 The CSI AS sends the merged 200 OK response message to the called IMS network.
  • Step 112 The called IMS network forwards the 200 OK message to the IMS terminal.
  • the inventors found that at least the following problems exist in the prior art: that is, before the step C104, the CSI AS needs to know the CS domain mobile station international number of the CSI terminal.
  • step 104 can be performed, and the real-time voice session request is sent to the CS domain of the CSI terminal for processing.
  • the CSI AS cannot know the CS domain MSISDN of the CSI terminal in advance. The number, which makes it impossible to route real-time voice session requests to the CS domain of the CSI terminal, causing the CSI service to fail.
  • the embodiment of the invention discloses a method for obtaining and providing an MSISDN number, a communication system, an HSS, an AS, a CSCF, and a CSI terminal, which enables the AS to obtain an MSISDN number.
  • the embodiment of the invention discloses a method for acquiring an international number of a mobile station, and the sending circuit switched CS and IP multimedia subsystems are combined with the CS domain mobile station international number MSISDN query request of the service CSI terminal to the home subscriber server HSS; receiving the HSS return The CS domain MSISDN of the CSI terminal.
  • the embodiment of the present invention discloses a method for providing a mobile station international number, receiving a CS domain MSISDN query request from a CSI terminal of an AS, and obtaining a CS domain MSISDN of the CSI terminal according to the query request; The CS domain MSISDN of the CSI terminal is sent to the AS.
  • the embodiment of the present invention discloses a method for acquiring an international number of a mobile station.
  • the call session control function entity CSCF receives a message carrying a CS domain MSISDN sent by a CSI terminal; the CSCF sending station The CS domain MSISDN of the CSI terminal to the AS; the AS receives the CS domain MSISDN of the CSI terminal from the CSCF.
  • the embodiment of the invention discloses a method for providing an international number of a mobile station, which receives a message carrying a CS domain MSISDN from a CSI terminal, and sends a CS domain MSISDN of the CSI terminal to the AS.
  • the embodiment of the present invention discloses a home subscriber network server, including: a query unit, configured to query a CS domain MSISDN of the CSI terminal according to a CS domain MSISDN query request of a CSI terminal from the AS; The CS domain MSISDN of the CSI terminal obtained by the query is sent to the AS.
  • the embodiment of the present invention discloses an application server, including: a query initiation unit, configured to send a CS domain MSISDN query request of a CSI terminal to an HSS, and a receiving unit, configured to receive a CS domain MSISDN of the CSI terminal from the HSS.
  • the embodiment of the present invention discloses a communication system, including a call session control function entity CSCF and an application server AS, where the CSCF includes a forwarding unit, configured to send a CS domain mobile station international number MSISDN from the CSI terminal to the AS;
  • the AS includes a number obtaining unit, configured to acquire a CS domain MSISDN of the CSI terminal in the CSCF.
  • the embodiment of the invention discloses a session control function entity, comprising: a forwarding unit, configured to send a CS domain MSISDN from a CSI terminal to an application server; and a sending trigger unit, configured to have a circuit switching and an IP multimedia subsystem combination in the CSI terminal When the capability of the service is enabled, the forwarding unit is triggered to work.
  • the embodiment of the present invention discloses a session control function entity, including: a forwarding unit, which sends a mobile station international number of a CS domain of a CSI terminal to an AS, and a sending trigger unit, configured to trigger a subscription request when receiving a subscription request from the AS
  • the forwarding unit works.
  • the embodiment of the invention discloses a CSI terminal, which comprises a message sending unit, configured to send a message carrying the international number of the mobile station of the circuit switched domain to the session control function entity.
  • FIG. 1 is a flow chart of interworking between a CSI terminal and an IMS terminal in the prior art
  • FIG. 2 is a flow chart of an embodiment of a method for obtaining an MSISDN number according to the present invention
  • FIG. 3 is a flow chart of another embodiment of a method for obtaining an MSISDN number according to the present invention.
  • FIG. 4 is a flow chart of another embodiment of a method for obtaining an MS I SDN number according to the present invention.
  • Figure 5 is a functional block diagram of an embodiment of a communication system of the present invention.
  • FIG. 6 is a functional block diagram of another embodiment of a communication system of the present invention.
  • FIG. 7 is a functional block diagram of another embodiment of a communication system of the present invention.
  • the embodiment of the present invention provides a method for obtaining an MSISDN number, which is mainly: before the CSI AS sends a voice session request to the MGCF to call the CSI terminal, obtains the CS domain MSISDN number of the CSI terminal from the HSS through the Sh reference point; or / The content of the message body in the session request acquires the CS domain MSISDN number of the CSI terminal.
  • the embodiments of the present invention provide the following two methods for implementing the MSISDN number of the CSI AS and three specific implementation methods.
  • the two basic methods described are:
  • a method for obtaining an MSISDN number including:
  • Step A The CSI AS sends a CS domain MSISDN number query request to the HSS;
  • Step B The HSS returns the CS domain MSISDN number obtained by the query to the CSI AS.
  • the CSI AS sends a CS domain MSISDN number query request to the HSS through the Sh reference point, and the HSS returns the number to the CSI AS to complete the function of acquiring the CS domain MSISDN number, so that the subsequent CSI terminal and the IMS terminal are successfully implemented. Interoperability is possible.
  • the CSI AS may initiate the query request after completing the third party registration or each time a call request is received; the CSI AS may use the extended data processing or subscription/notification command to query the CS domain MSISDN number.
  • the request includes the public user identity of the user and the CS domain MSISDN number request information.
  • the data type labeled CSI MSISDN and its corresponding code can be extended in the Data-Reference AVP request. Therefore, the existing CSI terminal and the IMS terminal can be successfully implemented by fully utilizing the existing message without requiring a large cost.
  • a method for obtaining an MSISDN number including:
  • Step A The CSCF receives the message carrying the CS domain MSISDN number sent by the CSI terminal, and sends the CS domain MSISDN number to the AS;
  • Step B The AS acquires the MSISDN number of the CS domain.
  • the CSI terminal initiates a registration request to carry the CS domain MSISDN number to the CSCF, and triggers the CSCF to return the CS domain MSISDN number to the CSI AS, and completes the function of acquiring the CS domain MSISDN number, so that the subsequent CSI terminal and the IMS terminal are successfully implemented. Interoperability becomes available
  • the extended message body of the registration request sent by the CSI terminal includes its CS domain MSISDN number, and the XML file of the extended message body may include a ⁇ CSI-MSISDN> parameter.
  • This step contains the following optional treatments:
  • the CSI terminal may extend the message body including its CS domain MSISDN number in the registration request;
  • the CSI terminal can also extend the message body containing its CS domain MSISDN number in the session request.
  • the CSI AS obtains the CS domain MSISDN number of the CSI terminal from the ShS through the Sh reference point, and includes the following specific processes:
  • Step 201 The CSI terminal initiates an IMS registration to its home S-CSCF, and may use a SIP URI. Or the tel URI initiates registration, the registration information carries the capability information of the terminal, indicating that it has CSI capability; Step 202, after the registration is successful, the S-CSCF replies with a 200 (OK) response to the CSI terminal; Step 203, the S-CSCF receives the terminal Capacity information, for business control;
  • Step 204 The S-CSCF generates a third-party REGISTER request according to the capability information of the terminal, and sends the request to the CSI AS.
  • Step 205 The CSI AS sends a 200 (OK) response to the S-CSCF, and the sensing terminal has CSI capability;
  • the CSI AS can acquire the capability information to other systems or entities. This information is obtained by querying the Device Management Data (DM) system. Alternatively, the CSI AS can obtain this information through an interface with the presence system. Alternatively, the CSI AS obtains the capability information through the USSD of the terminal.
  • DM Device Management Data
  • Step 206 The CSI AS initiates a data query to the HSS, and uses the extended UDR/UDA (User-Data-Request/Answer) command to request data, including the user identity and the CSI domain MSISDN number request information.
  • UDR/UDA User-Data-Request/Answer
  • the tag of the request data may be extended in the request item of Data-Reference AVP, which is the CSI domain MSISDN number type and its corresponding code.
  • Data-Reference AVP is the CSI domain MSISDN number type and its corresponding code.
  • Requested Data-Reference M The type of data requested, corresponding to a fixed encoding (increased data plus data type and corresponding encoding)
  • Service Service-Indicati C IMPU and Data-Reference jointly identify service-related transparent data that requires Indication on
  • Application Origin-Host M indicates the identity of the AS
  • the ( Push-Notification-Request/ Answer) command requests data.
  • Step 207 The HSS responds with a UDA response carrying the CS domain MSISDN number, and gives the requested data.
  • the CSI AS can obtain the CS domain MSISDN number of the CSI terminal.
  • the CSI AS obtains the CS domain MSISDN number of the CSI terminal by extracting the body content of the registration request.
  • Step 301 The CSI terminal initiates an IMS registration process to the home S-CSCF.
  • the CSI terminal initiates an IMS registration process to the S-CSCF to which it belongs, and can initiate registration by using a SIP URI or a tel URI.
  • the registration information carries the capability information of the terminal, indicating that it has CSI capability.
  • the CS domain MSISDN number information is carried in an extended manner, and the SIP message body can be extended, or the SIP header field can be extended to carry information.
  • the format of the extended message body may be XML or other form, and the extended message body XML file may contain circuit domain MSISDN parameters indicating a CSI terminal, such as: a ⁇ CSI-MSISDN> parameter;
  • the extended message body contains its CS domain MSISDN number.
  • An example of a request message is as follows:
  • Step 302 After the registration is successful, the S-CSCF replies with a 200 (OK) response to the CSI terminal; Step 303: The S-CSCF receives the capability information of the terminal, and performs service control.
  • Step 304 The S-CSCF directly transmits the CS domain MSISDN number information to the CSI AS.
  • a third-party REGISTER request is generated according to the received terminal capability information.
  • the CS domain MSISDN number information carrying the CSI terminal in the request is sent to the CSI AS.
  • the S-CSCF may carry information by extending the message body or extending the SIP header field in a request sent to the CSI AS.
  • the extended message body contains the CS domain MSISDN number of the CSI terminal.
  • the request message is as follows:
  • Table 3 Third Party Registration Request Message REGISTER sip: as.home.net SIP/2.0
  • Step 305 The CSI AS obtains the CS domain MSISDN number of the CSI terminal in the request message, and sends back a 200 (OK) response to the S-CSCF.
  • the CSI terminal initiates a registration request to carry the CS domain MSISDN number to the S-CSCF, and triggers the S-CSCFCS to generate a third-party registration request that carries the CS domain MSISDN number to the CSI AS, and obtains the CS domain MSISDN number.
  • the function makes it possible to successfully implement the subsequent interworking between the CSI terminal and the IMS terminal.
  • the CSI AS obtains the CS domain MSISDN number of the CSI terminal through the subscription/announcement mechanism, including the following specific processes:
  • Step 401 The CSI terminal initiates an IMS registration process to the home S-CSCF.
  • the registration process can be initiated by using the SIP URI or the tel URI.
  • the registration information carries the capability information of the terminal, indicating that it has CSI capability, and carries its CS MSISDN number information in an extended manner in the request, for example: carrying the CS through the extended message body. Domain MSISDN number.
  • Step 402 After the registration is successful, the S-CSCF replies with a 200 (OK) response to the CSI terminal; and after receiving the request, the S-CSCF saves the CS domain MSISDN number information in the request.
  • Step 403 The S-CSCF receives the capability information of the terminal, and performs service control.
  • Step 404 The S-CSCF generates a third-party registration request according to the received terminal capability information, and sends the request to the CSI AS.
  • Step 405 The CSI AS replies with a 200 (OK) response that the registration is successful, and considers that the CSI terminal has successfully registered in the S-CSCF.
  • Step 406 The CSI AS initiates a subscription (SUBSCRIBE) request to the S-CSCF.
  • SUBSCRIBE subscription
  • the CSI AS can initiate a subscription to the S-CSCF by using data processing or subscription/notification information, and the S-CSCF is in the notification message.
  • Step 407 The S-CSCF replies with a 200 (OK) response that the subscription is successful.
  • Step 408 The S-CSCF carries the CS domain MSISDN of the CSI terminal in the NOTIFY message.
  • the information is passed to the CSI AS, for example by extending the registration event package. For example: A ⁇ CSI-MSISDN > parameter.
  • Step 409 The AS replies with a 200 (OK) response, and receives the CS domain MSISDN number of the CSI terminal.
  • the CSI AS can know the CS domain MSISDN number of the CSI terminal in advance, and send the real-time service request to the CS domain of the CSI terminal for processing.
  • the CSI terminal initiates a registration request to carry the CS domain MSISDN number to the S-CSCF, and triggers the S-CSCFCS to generate a third-party registration request to the CSI AS, and the CSI AS sends a request to the S-CSCF to subscribe to the CS.
  • the subscription request of the domain MSISDN number is completed, and the function of acquiring the MSISDN number of the CS domain is completed, so that the subsequent communication between the CSI terminal and the IMS terminal is successfully implemented.
  • the present invention further provides an embodiment of a method for implementing interworking between a CSI terminal and an IMS terminal, Includes:
  • the IMS terminal initiates an IMS session request to the CSI terminal to the CSI terminal including the real-time and non-real-time services to the CSI AS;
  • the CSI AS sends the voice session request to the MGCF; before the step, performing the steps included in any implementation manner of the method for acquiring the CS domain MSISDN number of the CSI terminal, acquiring the CS domain MSISDN number of the CSI terminal, Sending, by the CSI AS, a voice session request carrying the MSISDN number to the MGCF;
  • the MGCF After receiving the voice session request message, the MGCF initiates a CS call to the CSI terminal according to the MSISDN number.
  • the present invention also provides the following basic implementation manners:
  • a communication system including CSI AS and HSS,
  • the CSI AS includes a query initiation unit, configured to send a CS domain MSISDN number query request to the HSS;
  • the HSS includes a query unit and a sending unit, where the query unit is configured to query the CS domain MSISDN number according to the CS domain MSISDN number query request; the sending unit is configured to send the CS domain MSISDN number obtained by the query Give the CSI AS.
  • the CS domain MSISDN number of the CSI terminal is obtained from the Sh reference point to the HSS, and the interworking function between the CSI terminal and the IMS terminal is implemented simply and effectively.
  • An HSS that includes:
  • the query unit is configured to query the CS domain MSISDN number according to the CS domain MSISDN number query request from the AS;
  • An AS including:
  • the query initiating unit is configured to send a CS domain MSISDN number query request to the HSS, and a receiving unit, configured to receive a CS domain MSISDN number from the HSS.
  • the above two embodiments can provide available devices for interworking CSI terminals and IMS terminals.
  • a communication system 4 CSCF CSI AS,
  • the CSCF is configured to receive a message that is sent by a CSI terminal and that carries a CS domain MSISDN number.
  • the CSI AS includes a number obtaining unit, configured to acquire the CS domain MSISDN number in the CSCF.
  • the CSI terminal uses the CSCF as the ISDN number forwarding network element, and can also implement the interworking function between the CSI terminal and the IMS terminal.
  • a CSCF that includes:
  • a forwarding unit configured to send the CS domain MSISDN number from the CSI terminal to the CSI AS, and send a triggering unit, configured to trigger the forwarding unit to work when the CSI terminal corresponding to the MSISDN number has CSI capability.
  • a CSCF that includes:
  • a forwarding unit configured to send a CS domain MSISDN number to the AS according to the subscription request
  • a sending triggering unit configured to trigger the forwarding unit to work when receiving the subscription request.
  • a CSI terminal includes a message sending unit, configured to send a message carrying a CS domain MSISDN number to the CSCF.
  • the present invention also provides a specific embodiment of a communication system, including CSI AS 510 and HSS 520.
  • the CSI AS 510 includes a query trigger unit 511, a query request generating unit 512, a query originating unit 513, and a receiving unit 514.
  • the query initiating unit 513 is configured to send a CS domain MSISDN number query request to the HSS through the Sh reference point.
  • the query triggering unit 511 is configured to trigger the query initiation unit 513 to work when receiving a third-party registration request from the S-CSCF 530 and corresponding to the registered CSI terminal having CSI capability.
  • the query request generating unit 512 is configured to generate a UDR command that extends the user identity and the CS domain MSISDN number request information, and is used as the query request sent by the query initiating unit 513 to the HSS.
  • the HSS 520 includes a query unit 521 and a sending unit 522, where the query unit 521 is configured to query the CS domain MSISDN number according to the CS domain MSISDN number query request after the HSS receives the query request from the CSI AS.
  • the sending unit 522 is configured to send the CS domain MSISDN number obtained by the query to the CSI AS.
  • Receiving unit 514 of CSI AS receives The CS domain MSISDN number from the HSS.
  • the present invention further provides another embodiment of a communication system, including a CSI terminal 610 and an S-CSCF 620.
  • the CSI terminal 610 includes a registration request generating unit 611 and a registration unit 612.
  • the registration request generating unit 611 is configured to generate the registration request with the CS domain MSISDN number extended.
  • the registration unit 612 is configured to send a registration request carrying the CS domain MSISDN number to the S-CSCF.
  • the S-CSCF 620 includes a transmit trigger unit 621 and a forwarding unit 622.
  • the forwarding unit 622 is configured to generate a third-party registration request that carries the CS domain MSISDN number and send it to the CSI AS 630.
  • the sending triggering unit 621 is configured to trigger the forwarding unit 622 to work when the CSI terminal 610 corresponding to the MSISDN number has CSI capability.
  • the present invention also provides another embodiment of a communication system, including a CSI terminal 710, an S-CSCF 720, and a CSI AS 730.
  • the CSI terminal 710 includes a registration request generating unit 711 and a registration unit 712.
  • the registration request generating unit 711 is configured to generate the registration request with the CS domain MSISDN number extended.
  • the registration unit 712 is configured to send a registration request carrying the CS domain MSISDN number to the S-CSCF 720.
  • the S-CSCF 720 includes a transmit trigger unit 721 and a forwarding unit 722.
  • the forwarding unit 722 is configured to send a third party registration request to the CSI AS 730 after completing the registration of the CSI terminal 710, and send a CS domain MSISDN number to the CSI AS 730 according to the subscription request.
  • the sending triggering unit 721 is configured to trigger the forwarding unit 722 to work when the CSI terminal 710 corresponding to the MSISDN number has CSI capability.
  • the CSI AS 730 includes a subscription unit 731 for transmitting, to the S-CSCF 720, a subscribed request to subscribe to the CS domain MSISDN number upon receipt of the third party registration request.
  • the acquisition of the MSISDN number of the CS domain mainly includes the following methods:
  • the AS sends a CS domain MSISDN number query request to the HSS through the Sh reference point, and the HSS returns a number to the AS to complete the function of acquiring the CS domain MSISDN number.
  • the AS sends the CS domain MSISDN from the terminal to the AS through the S-CSCF, and completes Obtain the function of the CS domain MSISDN number.
  • the HSS since the AS sends a CS domain MSISDN number query request to the HSS through the Sh reference point, the HSS returns the number to the AS, or sends the CS domain MSISDN number from the terminal through the CSCF.
  • the function of obtaining the CS domain MSISDN number of the AS is completed in the AS, so that the subsequent CSI terminal and the IMS terminal can be successfully connected.

Abstract

Cette invention concerne un procédé, un système de communication, un terminal HSS, AS, CSCF, et CSI pour acquérir et fournir un numéro MSISDN. Le procédé permettant d'acquérir un numéro MSISDN comprend les étapes qui consistent: à transmettre une demande d'interrogation du numéro international de station mobile à domaine CS (MSISDN) du terminal CSI par combinaison de services de sous-systèmes multimédia IP et à commutation de circuits CS à un serveur d'abonné local (HSS); à recevoir le numéro MSISDN du domaine CS du terminal CSI renvoyé par ledit serveur HSS.
PCT/CN2008/070214 2007-02-08 2008-01-30 Procédé, système de communication et dispositif pour acquérir et fournir un numéro msisdn WO2008095440A1 (fr)

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CN103260172A (zh) * 2012-02-21 2013-08-21 东南大学常州研究院 一种监控用户手机号码的装置和方法

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WO2006034658A1 (fr) * 2004-09-30 2006-04-06 Huawei Technologies Co., Ltd. Procede et systeme de realisation de communication
CN1773967A (zh) * 2004-11-08 2006-05-17 华为技术有限公司 通过分组域为电路域用户提供业务的方法
CN1808996A (zh) * 2005-08-30 2006-07-26 华为技术有限公司 Ip多媒体子系统中ims注册触发实现方法

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Publication number Priority date Publication date Assignee Title
WO2006034658A1 (fr) * 2004-09-30 2006-04-06 Huawei Technologies Co., Ltd. Procede et systeme de realisation de communication
CN1773967A (zh) * 2004-11-08 2006-05-17 华为技术有限公司 通过分组域为电路域用户提供业务的方法
CN1808996A (zh) * 2005-08-30 2006-07-26 华为技术有限公司 Ip多媒体子系统中ims注册触发实现方法

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