CN1848793A - Group network intercommunicating method and network system thereof - Google Patents
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- CN1848793A CN1848793A CN 200510064430 CN200510064430A CN1848793A CN 1848793 A CN1848793 A CN 1848793A CN 200510064430 CN200510064430 CN 200510064430 CN 200510064430 A CN200510064430 A CN 200510064430A CN 1848793 A CN1848793 A CN 1848793A
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Abstract
A method for interworking packet network includes judging whether current calling is in according with preset service triggering point or not and whether IMS service is contracted by user or not when calling is processed by soft interchange device in the first network, triggering the calling directly to IMS application server in the second network and carrying out follow-up calling control and route connection by soft interchange device according to control result returned back from IMS application server if it is or otherwise carrying out follow-up calling control and route connection directly by soft interchange device.
Description
Technical field
The present invention relates to next generation network, relate in particular to a kind of method and network system thereof of packet network intercommunication.
Background technology
Generally be meant based on the broadband packet carrying, adopt and carry the soft-exchange construction that separates with control provides C4/C5 business and IP multimedia service for fixed network or mobile network access user telecommunications service network by the next generation network of sizable application (NGN network) at present.Wherein, soft switch (Softswitch) is also referred to as call server (Call Server) etc. in many instances, and mobile soft switch is also referred to as MSC (MobileSwitching Center, mobile switching centre) Server.Soft switch generally by standard or compatible H.248, MGCP (Media Gateway Control Protocol, MGCP), H.323 the user media gateway, Trunk Media Gateway and the broadband user that wait agreement control to insert, the traditional circuit domain user inserts soft switch by user media gateway, Trunk Media Gateway.
Though the NGN network based on soft switch is entering the stage that scale is disposed, progressively to replace traditional public switched telephone network (PSTN)/integrated services digital network (PSTN/ISDN); But then, organize the intensification day by day of IM CN subsystem (IMS) the standard influence power of issue along with 3GPP, ETSI and ITU-T two big normal structures are current all prepares to adopt the IMS framework to define NGN making it standardization, and has introduced the substantial standard preparatory stage.
IMS is WCDMA (the Wideband Code Division MultipleAccess of 3GPP R5/R6 standard definition, Wideband Code Division Multiple Access (WCDMA)) IP Multimedia System in the network, be that the 3G mobile network is realized packet voice and grouped data, the unified multimedia service and the objective network of application are provided, promptly this to be one be the system of application with mobile subscriber.Insert the user although the NGN standard that ITU-T and ETSI are drafting has been carried out revision to the IMS framework to make it to adapt to fixed network, be based on IMS the NGN network and based on the NGN network of soft switch in architecture, call out many-side such as control and still can have in various degree difference.
Because Softswitch has had the application of certain scale, and still dispose progressively enlarging, must consider that therefore industry generally has following two kinds of schemes at present based on the NGN network of IMS with based on the NGN network relation between the two of soft switch:
1, based on the NGN network of IMS and based on the NGN network of soft switch as two networks fully independently, long-term intercommunication coexistence.
2, soft switch will weaken and be an access control equipment based on the NGN network of IMS, be responsible for control and insert traditional circuit domain user, and it is called out functions such as control, route continue and is responsible for processing by IMS.
Although architectural framework is different, all be to set up the NGN network based on the NGN network of IMS with based on the target of the NGN network of soft switch, adopt first kind of scheme with both as two networks fully independently, on equipment, have the waste of repeated construction; Adopt second kind of scheme, calling control, the route of being responsible for handling the traditional circuit domain user by IMS network function such as continue, the efficient that continues when being handled by soft switch is lower.
Summary of the invention
The invention provides a kind of method and network system thereof of packet network intercommunication, solving in the prior art based on the NGN network of IMS and during, be responsible for continuing and having inefficient problem based on the control of the customer call in the NGN network of soft switch and route by the IMS network based on the NGN network interworking of soft switch.
For addressing the above problem, the invention provides following technical scheme:
A kind of network system comprises that described first network has Softswitch based on first network of soft switch with based on second network of IM CN subsystem (IMS), and described second network has the IMS application server; Wherein, Softswitch in described first network is connected with IMS application server in second network, and it is professional or call out should call out when access code is the IMS service access code and directly be triggered to the IMS application server that described Softswitch can meet the Service Point Trigger that presets and the user IMS that contracted in the progress stage of current calling.
Described Softswitch also is connected with home subscriber server (HSS) in second network, is used for obtaining user contracting data and service contracting data from HSS.
Described Softswitch also with second network in Charging Collection Function be connected with the Session Charging Function entity, finish offline charging and online charging function respectively by Charging Collection Function and Session Charging Function entity.
A kind of method of packet network intercommunication, this packet network comprise based on first network of soft switch with based on second network of IMS; Described method comprises the steps:
Softswitch in A, first network connects when handling its calling that inserts the user, judges whether the current call progress stage meet the Service Point Trigger that presets, if then carry out step B, otherwise Softswitch directly carries out subsequent voice calls control and route continues;
B, trigger the subscription data that object presets with current call information coupling is professional, judge whether user's IMS access code professional or described calling of whether having contracted is the IMS service access code, if and the routing address that obtains the IMS application server of a described subscription data correspondence is tabulated, then carry out step C, otherwise Softswitch directly carries out subsequent voice calls control and route continues;
C, Softswitch are converted to the Invite message of Session initiation Protocol with current call information and directly are triggered to first IMS application server in the routing address tabulation of described IMS application server, are carried out service logic control and are returned the control result to Softswitch by this IMS application server;
D, Softswitch receive the control result, and the result carries out subsequent voice calls control and route continues according to controlling.
The described Service Point Trigger that presets includes but not limited to the test point that Softswitch is received when calling out initial request message, when soft switch collects called number information and used the mode of intelligent network configure trigger test point to dispose in soft switch by static data.
The described professional object that triggers triggers based on user or access code; If trigger based on the user, then in user contracting data, indicate user's the IMS service profile and the routing address of IMS application server; If trigger based on access code, it is professional and indicate IMS application server routing address then to indicate this access code corresponding service and be IMS in access code business configuration data.
Softswitch receives the control result, if the control result is the Invite message of Session initiation Protocol, and the IMS application server that also has other in the tabulation of the routing address of described IMS application server, then Softswitch is with second the IMS application server of described Invite message trigger in the tabulation; If the control result is certain answer code (response code) of Session initiation Protocol, judge whether the Service Point Trigger that presets in addition, if the Service Point Trigger that presets in addition then carries out step B.
Charging Collection Function (CCF) and Session Charging Function (SCF) that Softswitch in first network is transferred to offline charging and online charging in second network are finished.
Adopt the present invention, soft switch inserts the user and still is responsible for handling functions such as its calling is controlled and route continues by soft switch on the one hand, continues to utilize the NGN equipment based on soft switch of current deployment, and call proceeding efficient height also makes investment be protected; On the other hand, Softswitch can directly be toggled to IMSAS with user's calling, soft switch inserts the user, and the business that is provided by IMSAS can be provided, make based on the NGN network of soft switch with based on the NGN network share I MS operation layer subnetwork equipment of IMS, thereby can reduce a large amount of investments.
Description of drawings
Fig. 1 is a network architecture system diagram of the present invention;
Fig. 2 directly is triggered to user's calling the business process map of IMS application server for soft switch;
Fig. 3 directly is triggered to user's calling the signaling process figure of IMS application server for soft switch.
Embodiment
The present invention be intended to make based on the NGN network of IM CN subsystem (IMS) and independent based on the NGN network of soft switch in session layer, merge at operation layer.Because the IMS framework had strict standard definition at present in 3GPP, therefore want and merge at operation layer based on the NGN network of IMS based on the NGN network of soft switch, in fact be exactly to require soft-exchange construction need meet the requirement of IMS operation layer.Want and network configuration independent based on the NGN network of IMS, that merge at operation layer as shown in Figure 1 (among Fig. 1 based on the NGN network of soft switch in session layer, based on network configuration, functional entity and the interactive interface thereof of the NGN of IMS, each network element and the definition of quoting 3GPP IMS standard such as interface mutually thereof, relevant network structure can be referring to Fig. 5 .1 and Fig. 5 .5 among the Fig. 6 among 3GPP TS 23.002 V6.5.0 and Fig. 6 a, 3GPP TR 23.815 V5.0.0), wherein:
(1), link to each other by interface 11 between soft switch and the intelligent network, based on the NGN network of soft switch with based on the shared intelligent equipment of NGN network of IMS, if soft switch has SSF service interaction function, direct trigger intelligent business then.Interface I1 adopts Intelligent Network Application Protocol (Intelligent Network Application Protocol) or CAP agreements such as (CAMELApplication Part, CAMEL Application Parts).
(2), link to each other by interface I2 between soft switch and the IMS AS, this interface I2 adopts Session initiation Protocol (Session Initiation Protocol).Based on the NGN network of soft switch with based on the shared IMS application server of the NGN network of IMS (IMS AS) equipment, IMS AS comprises that for soft switching users provides all kinds of Business Processing supplementary service and value-added service (SIP AS), IN service trigger (IM-SSF) and professional trigger (the OSA SCS) of third party.
(3), link to each other by interface I3 between soft switch and the HSS, this interface I3 adopts Diameter (concrete definition can referring to the Cx interface of S-CSCF and HSS in the IMS standard).All kinds of business that soft switching users uses IMSAS to provide, the relevant user contracting data that IMS AS uses is kept at storage administration among the HSS.In traditional soft-exchange construction, the employed user contracting data of soft switch is in local storage administration.Because soft switch and the employed user contracting data of IMS AS have repetition, therefore in the present invention, can unify to transfer to the HSS storage administration, based on the user contracting data that the NGN network of soft switch is wanted and shared HSS unified management inserts the user based on the NGN network of IMS.If the triggering business to PSI has been adopted in soft switch, also must store the service contracting data of the PSI that the service contracting data of the PSI that soft switch is combined into according to its concrete IMS service profile that inserts the user or soft switch be translated into according to the service access code of calling out among the HSS, if this PSI is combined by user's service profile, then its service contracting data must be distinguished to indicate and trigger calling service or called service.
(4) soft switch links to each other with IMS S-CSCF by interface I4, and interface I4 adopts Session Initiation Protocol.By interface I4, soft switch access control user and IMS access control user can call out in intercommunication.In the IMS standard, defined the intercommunication that a network entity MGCF (MGCF) finishes between circuit domain user and the IMS user and called out, therefore can directly reuse the function that Softswitch is finished its MGCF based on the NGN network of IMS.
(5), soft switch links to each other by interface I5 with Charging Collection Function (CCF), Session Charging Function (SCF).Interface I5 between soft switch and the CCF adopts Diameter (concrete definition can referring to the Rf interface between S-CSCF and the CCF in the IMS standard).I5 interface between soft switch and the SCF adopts Session Initiation Protocol (concrete definition can referring to the ISC interface between S-CSCF and the SCF in the IMS standard).All kinds of business that soft switching users uses IMS AS to provide, the offline charging of IMS AS and online charging function are finished by Charging Collection Function (CCF) and Event Charging Function (ECF) respectively.In traditional soft-exchange construction, user's offline charging (Call Detail Record and multi-metering table) function is finished by soft switch, and online billing function is not supported in soft switch itself.Owing to use at soft switching users under the prerequisite of IMS AS business, an inevitable soft switch and the IMS AS of passing through simultaneously of complete calling, therefore in the present invention, soft switch also can with offline charging and the online charging function transfers to CCF respectively and SCF finishes, and finishes offline charging and online charging function based on the NGN network of soft switch with based on the shared CCF/ECF/SCF of NGN network of IMS.
It is broadband user or traditional circuit domain user that soft switch inserts the user, described Softswitch by standard or compatible H.248, MGCP (Media Gateway Control Protocol, MGCP), H.323, the control of agreement such as SIP directly user media gateway, Trunk Media Gateway and the described broadband user of access, described traditional circuit domain user inserts described Softswitch by described user media gateway and described Trunk Media Gateway.
In network system shown in Figure 1, when soft switch inserts the soft switch of user's outgoing call or soft switch, tandem soft switch or called subscriber's ownership that incoming call routes to calling subscriber's ownership, if Softswitch is judged the current call progress stage and is met the Service Point Trigger that presets, and the configuration data of user's subscription data or calling access code shows its IMS AS business of having contracted, then soft switch is translated into the SIP INVITE with current call information, by interface I2 the calling of circuit domain user directly is toggled to IMS AS; IMSAS carries out correspondent service logic control after receiving SIP INVITE from soft switch, and according to the corresponding sip message of control loopback as a result, as SIP INVITE or certain SIP response message etc.Soft switch is carried out follow-up calling control and route and is continued after receiving sip message.
The business that is triggered to IMS AS from soft switch can be the business at caller, called or public service identity (PSI).If at the PSI business, the called number during soft switch will be called out is inserted the specific region of certain agreement in the SIPINVITE message.Soft switch indicates to IMS AS in INVITE that this time to call out to be processed be professional or called or PSI (To header field indication) business of caller (indication of From header field), the mode of indication can but be not limited to:
(1) to same IMS AS equipment, in the Request of INVITE URI, use different IMS AS addresses, what promptly address was represented to trigger is calling service, what another address was represented to trigger is the business of called/PSI.
(2) in INVITE, use the indication of certain header field or parameter, current triggering be calling service or called/PSI business.
The IMS AS Service Point Trigger that presets in the soft switch can but be not limited to following mode:
A, only when the exhalation of circuit domain user or incoming call initial request message are received in soft switch;
B, only when soft switch collects called number information;
The triggering mode of C, employing intelligent network TDP trigger detection point disposes DP test point, i.e. IMS AS Service Point Trigger by static data in soft switch.As: (Origination_Attempt_Authorized) makes a start _ call attempt _ authentication, collection _ information (Collected information), analysis _ information (Analysed_information), (O_Called_Party_Busy) makes a start _ called subscriber busy, (O_No_Answer) makes a start _ no response, go into to hold _ reply (O_Answer), go into to hold _ take out stitches (concrete DP test point standards such as (T_Disconnect), definition such as triggering type can be referring to " Chinese intelligent equipment Service Switching Point technical specification ", Q.1214 the description in waiting).
When soft switch directly was toggled to IMS AS by interface I2 with the calling of circuit domain user, the professional object that triggers can be based on user or access code, wherein:
(1), when triggering, in user contracting data, indicates user's IMS AS service profile and the routing address of IMS AS based on the user.Can obtain the routing address tabulation of a described IMSAS by coupling to user contracting data, also the IMS service profile that can show according to user contracting data earlier is combined into the PSI of a correspondence, obtains the routing address tabulation of a described IMS AS again by the coupling to PSI service contracting data.User contracting data and PSI service contracting data can be stored in the database or the HSS of Softswitch.
(2), when triggering based on access code, the corresponding service that indicates this access code in access code business configuration data is the routing address of IMS AS business and IMS AS.Can obtain the routing address tabulation of a described IMS application server by coupling to described access code business configuration data, also can earlier access code be translated the PSI that claims a correspondence, obtain the routing address tabulation of a described IMS application server again by coupling PSI service contracting data.Access code business configuration data and PSI service contracting data can be stored in the database or the HSS of Softswitch.
User contracting data and service contracting data can adopt the mode of 3GPP IMS standard definition, its concrete manifestation form is the user's or PSI's an iFC triggering rule, and wherein: soft switch need translate to current call information the Session Initiation Protocol form with coupling iFC triggering rule; Soft switch need be supported the parsing to the iFC triggering rule; The iFC triggering rule can directly be kept in the database of soft switch as subscription data, also can be kept among the HSS, and soft switch is downloaded by interface I3 when needs use.
Consult shown in Figure 2ly, soft switch is as follows with the flow process that the calling of soft switching users directly is toggled to IMS AS by interface I2:
Step 10: the outgoing call or the incoming call that soft switch are inserted the user route to soft switch.Soft switch can be calling subscriber's ownership soft switch, tandem soft switch, called subscriber's ownership soft switch.
Step 20: control is called out in user's calling in soft switch and route continues, and judges whether the current call progress stage meet the Service Point Trigger that presets, if then carry out step 30, otherwise, carry out step 90.
Step 40: current call information is translated into the SIP INVITE, and sends it to first IMS AS in the described routing address tabulation.
If soft switch obtains one and triggers professional PSI, and the called number that exists the user to import in the described call information this moment, then called number is inserted in the specific region of certain agreement in the described Invite message in soft switch.
After step 50:IMS AS receives the SIP INVITE, at first judge professional or called or PSI (To header field indication) business of caller (indication of From header field) of handling according to the indication in the message, carry out correspondent service logic control then, and according to controlling the result to the corresponding sip message of soft switch loopback, as SIP INVITE or certain SIP answer back code (response code) message etc.
If what IMS AS handled is the PSI business that soft switch is sent, judge whether PSI corresponding service subscription data exists, do not download from the HSS request if having then.Need simultaneously to take out called number in the specific region of certain agreement from INVITE.
If IMS AS handles be soft switch send based on user's business of triggering, IMS AS obtain user contracting data mode can but be not limited to following mode:
(1), soft switching users is registered to IMS AS.Soft switching users by H.323, Media Gateway Control Protocol or when H.248 protocol registration is to soft switch, soft switch obtains the routing address of the IMS AS of needs registration by user contracting data, these data can directly be configured in the soft switch by traditional data form, also can be obtained to HSS download user subscription data by interface I3 by soft switch.Soft switch is translated into SIP REGISTER message with registration message and sends to corresponding IMS AS, and IMS AS can ask the subscription data of download user to HSS in registration process.
(2), after soft switch is triggered to IMS AS with business, IMS AS judges whether user's subscription data exists, does not then ask to download from the HSS request if having.
Step 60: the sip message from IMS AS is received in soft switch, if the Invite message in the sip message, and the IMS application server address that also has other in the tabulation of the routing address of described IMS application server, then soft switch with described Invite message trigger to the tabulation in second IMS application server, change step 50 over to; Otherwise carry out step 70.
Step 70:SIP message is certain answer code (response code), or there is not other IMS application server address in the tabulation of the Invite message in the sip message but routing address, judge whether that then the Service Point Trigger that presets in addition exists, if having and meeting trigger condition then changes step 40, otherwise continue step 80.
Step 80: soft switch is carried out follow-up calling control and route according to the control result in the sip message and is continued.
Step 90: Softswitch directly carries out subsequent voice calls control and route continues.
The signaling process that soft switch directly is triggered to user's calling the IMS application server as shown in Figure 3.Wherein, the flow process of Fig. 2 and Fig. 3 is the specific implementation for illustrating only, do not represent a complete calling and professional control flow all processing steps in the practical application, there is not all possible branch of limit flow process yet, the ordinary skill of this area can draw detailed step according to foregoing description without performing creative labour.
The definition that general frame, functional entity and interactive interface thereof etc. based on the NGN of IMS among the present invention are quoted 3GPP IMS standard, the concrete standard of IMS can be referring to the technical specification of 3GPP tissue issue, wherein definition of IMS general frame and basic function explanation can be referring to 3GPP TS23.002 and 3GPP TS23.228, IMS operation layer general description can be referring to 3GPP TS 23.218, and IMS charging general description can be referring to 3GPP TR23.815.The present invention no longer specifically describes.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (16)
1, a kind of network system, comprise based on first network of soft switch with based on second network of IM CN subsystem (IMS), described first network has finishes the Softswitch of calling out control and calling out route, and described second network has provides the IMS of all kinds of Business Processing application server; It is characterized in that, Softswitch in described first network is connected with IMS application server in second network, described Softswitch meets the Service Point Trigger that presets and this user in its progress stage of inserting user's calling has contracted should call out when IMS access code professional or described calling is the IMS service access code and directly has been triggered to the IMS application server, and described software switching equipment carries out according to the result of IMS application server that subsequent calls is controlled and route continues.
2, network system as claimed in claim 1 is characterized in that, described Softswitch also is connected with home subscriber server (HSS) in second network, is used for obtaining user contracting data and service contracting data from HSS.
3, network system as claimed in claim 2, it is characterized in that, described Softswitch also with second network in Charging Collection Function (CCF) be connected with Session Charging Function (SCF) entity, finish the offline charging function by the Charging Collection Function entity, finish the online charging function by the Session Charging Function entity.
As each described network system of claim 1 to 3, it is characterized in that 4, the interface between Softswitch and the IMS application server is the Session Initiation Protocol interface.
5, a kind of method of packet network intercommunication, this packet network comprise based on first network of soft switch with based on second network of IMS; It is characterized in that this method comprises the steps:
When the Softswitch in A, first network is handled its calling that inserts the user, judge whether the current call progress stage meet the Service Point Trigger that presets, if then carry out step B, otherwise Softswitch directly carries out subsequent voice calls control and route continues;
B, trigger the subscription data that object presets with current call information coupling is professional, judge whether user's IMS access code professional or described calling of whether having contracted is the IMS service access code, if, then obtain the routing address tabulation of IMS application server in second network of described subscription data correspondence, and carry out step C; Otherwise Softswitch directly carries out subsequent voice calls control and route continues;
C, Softswitch are converted to current call information the Invite message of Session initiation Protocol, and directly be triggered to first IMS application server in the routing address tabulation of described IMS application server, carry out service logic control and return the control result by this IMS application server to Softswitch;
D, Softswitch receive the control result, and the result carries out subsequent voice calls control and route continues according to controlling.
6, method as claimed in claim 5, it is characterized in that the described Service Point Trigger that presets includes but not limited to: the test point that Softswitch is received when calling out initial request message, when soft switch collects called number information and used the mode of intelligent network configure trigger test point to dispose in soft switch by static data.
7, method as claimed in claim 6 is characterized in that, if the described professional object that triggers triggers based on the user, then indicates user's the IMS service profile and the routing address of IMS application server in user contracting data; If the described professional object that triggers triggers based on access code, it is professional and indicate IMS application server routing address then to indicate this access code corresponding service and be IMS in access code business configuration data.
8, method as claimed in claim 7 is characterized in that, if when triggering based on the user, obtains the routing address tabulation of a described IMS application server by the match user subscription data; Perhaps, the IMS service profile that shows according to user contracting data is combined into the public service identity (PSI) of a correspondence earlier, obtains the routing address tabulation of a described IMS application server again by the coupling to PSI service contracting data.
9, method as claimed in claim 7 is characterized in that, if trigger based on access code, obtains the routing address tabulation of a described IMS application server by the coupling to access code business configuration data; Perhaps, earlier access code is translated into the public service identity (PSI) of a correspondence, obtains the routing address tabulation of a described IMS application server again by coupling PSI service contracting data.
10, as each described method of claim 5 to 9, it is characterized in that, the business that soft switch is triggered to the IMS application server is the business at calling subscriber, called subscriber or public service identity (PSI), and indication is handled calling service and still handled called or PSI is professional in triggering message.
11 methods as claimed in claim 10 is characterized in that, use different IMS application server address indications to handle calling service in message and still handle called or PSI is professional; Perhaps, using the indication of certain header field or parameter to handle calling service in message still handles called or PSI is professional.
12 methods as claimed in claim 10, it is characterized in that, combine if PSI is the CAMEL-Subscription-Information according to the user, after then the IMS application server obtains PSI service contracting data, handle calling service according to PSI service contracting data separation and still handle called service.
13, method as claimed in claim 10 is characterized in that, Charging Collection Function (CCF) and Session Charging Function (SCF) that the Softswitch in first network is transferred to offline charging and online charging in second network are finished.
14, method as claimed in claim 10 is characterized in that, when the user in first network was registered to the IMS application server by Softswitch, the IMS application server obtained the user contracting data that is used for service logic control; Perhaps, when Softswitch was triggered to the IMS application server with calling, user contracting data or the service contracting data that are used for service logic control were downloaded in the request of IMS application server from the user attaching server.
15, method as claimed in claim 10, it is characterized in that, among the step D, after Softswitch receives the control result, if the control result is the Invite message of Session initiation Protocol, and the IMS application server that also has other in the tabulation of the routing address of described IMS application server, then Softswitch is with second the IMS application server of described Invite message trigger in the tabulation; If the control result is certain answer code (response code) of Session initiation Protocol, judge whether the Service Point Trigger that presets in addition, if the Service Point Trigger that presets in addition then carries out step B.
16, method as claimed in claim 10, it is characterized in that, among the step C, if being triggered to the business of IMS application server, soft switch is business at PSI, the called number that exist user to import in the described call information this moment, then Softswitch is inserted specific region in the described Invite message with called number.
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| WO2009092255A1 (en) * | 2007-12-29 | 2009-07-30 | Huawei Technologies Co., Ltd. | Method, system and device for providing the intelligent service for the ims user |
| CN101505509B (en) * | 2009-03-19 | 2011-09-21 | 中兴通讯股份有限公司 | Resource reservation implementing method and interconnection network element |
| CN102316425A (en) * | 2011-09-23 | 2012-01-11 | 中兴通讯股份有限公司 | Method and internet protocol multimedia service switching function (IM-SSF) for signaling interaction between internet protocol multimedia subsystem (IMS) and intelligent network |
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| CN108243285A (en) * | 2016-12-23 | 2018-07-03 | 中国电信股份有限公司 | call recording method and system |
| CN115955467A (en) * | 2021-10-08 | 2023-04-11 | 中国移动通信集团河南有限公司 | SIP message processing method and device |
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| US20050007984A1 (en) * | 2003-05-02 | 2005-01-13 | Interdigital Technology Corporation | Method and architecture for accessing an internet protocol multimedia subsystem (IMS) over a wireless local area network (WLAN) |
| CN100382544C (en) * | 2003-09-05 | 2008-04-16 | 华为技术有限公司 | Method for realizing transform of conventional telephone exchange network to younger generation network and transient network |
| CN100433842C (en) * | 2003-12-30 | 2008-11-12 | 北京邮电大学 | Integrated calling system for realizing flexible exchange multikind signalling and calling treatment method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009092255A1 (en) * | 2007-12-29 | 2009-07-30 | Huawei Technologies Co., Ltd. | Method, system and device for providing the intelligent service for the ims user |
| CN101505509B (en) * | 2009-03-19 | 2011-09-21 | 中兴通讯股份有限公司 | Resource reservation implementing method and interconnection network element |
| CN102316425A (en) * | 2011-09-23 | 2012-01-11 | 中兴通讯股份有限公司 | Method and internet protocol multimedia service switching function (IM-SSF) for signaling interaction between internet protocol multimedia subsystem (IMS) and intelligent network |
| CN102316425B (en) * | 2011-09-23 | 2017-12-19 | 中兴通讯股份有限公司 | A kind of signaling interaction method and IM SSF for being used for IMS and intelligent network |
| CN104660545A (en) * | 2013-11-15 | 2015-05-27 | 华为技术有限公司 | Method for transmitting information by utilizing service broker and service broker |
| CN104660545B (en) * | 2013-11-15 | 2018-06-05 | 华为技术有限公司 | A kind of method and service broker using service broker transmission information |
| CN108243285A (en) * | 2016-12-23 | 2018-07-03 | 中国电信股份有限公司 | call recording method and system |
| CN108243285B (en) * | 2016-12-23 | 2020-04-28 | 中国电信股份有限公司 | Telephone recording method and system |
| CN115955467A (en) * | 2021-10-08 | 2023-04-11 | 中国移动通信集团河南有限公司 | SIP message processing method and device |
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| CN100362830C (en) | 2008-01-16 |
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