CN101998318A - IP (Internet Protocol) multi-media subsystem call processing method and device - Google Patents
IP (Internet Protocol) multi-media subsystem call processing method and device Download PDFInfo
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- CN101998318A CN101998318A CN2009100087856A CN200910008785A CN101998318A CN 101998318 A CN101998318 A CN 101998318A CN 2009100087856 A CN2009100087856 A CN 2009100087856A CN 200910008785 A CN200910008785 A CN 200910008785A CN 101998318 A CN101998318 A CN 101998318A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1096—Supplementary features, e.g. call forwarding or call holding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
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Abstract
The invention discloses IP (Internet Protocol) multi-media subsystem call processing method and device, wherein the method comprises the following steps that the P-CSCF (Proxy Call Session Control Function) of a visit network receives an origination message; if the Privacy head in the origination message is assigned with the header, the P-CSCF deletes the head containing the identity information of calling user equipment in the origination message. Through the invention, the head information causing the leaking of the identity of a calling user can be deleted and the anonymous call in the real sense can be realized.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of IP Multimedia System call processing method and device.
Background technology
At traditional PSTN (Public Switched Telephone Network, be called for short PSTN) in, the identity information that reflects the user by user's number only singlely, when calling subscriber's CLIR service of having contracted, when perhaps the called subscriber contracted CLIP service, the called subscriber can't see calling subscriber's number, therefore, what think that the called subscriber receives is an anonymity call, can't see calling subscriber's identity information.
IMS is 3G (Third Generation) Moblie partner program (3rd Generation PartnershipProject, abbreviation 3GPP) subsystem of the support IP multimedia service that proposes, it can provide multiple media business, complied with the main trend that communication network merges, to become the next generation network core hierarchy of control structure of (NextGeneration Network is called for short NGN) gradually.
In IMS, Proxy Call Session Control Function (Proxy Call Session Control Function, be called for short P-CSCF) be to connect subscriber equipment (User Equipment, be called for short UE) and the Ingress node of IMS network, all IMS terminals initiations and the conversation message that ends at the IMS terminal all will pass through P-CSCF.In fact P-CSCF has played the part of the role of an acting server, and it receives session initiation protocol (Session Initiation Protocol is called for short SIP) request and response, and transmits to IMS network or user.P-CSCF can be positioned at visited network or home network.Application-server layer (ApplicationServer is called for short AS) is positioned at home network, is used to provide service logic, supports user's miscellaneous service attribute.
According to the regulation of RFC-3325, the P-Asserted-Identity head can be used for characterizing the identity information of the sip message transmit leg of trust domain.When the value of Privacy head is " id ", need delete P-Asserted-Identity head in the corresponding message by acting server.
In IP Multimedia System, when the calling subscriber A CLIR service of having contracted, perhaps when called subscriber B contracts CLIP service, the value of exhaling the Privacy head in (INVITE) message that rises that the P-CSCF at called subscriber B place receives is " id ", as depicted in figs. 1 and 2.
According to the regulation of RFC-3325, P-CSCF need delete P-Asserted-Identity (abbreviating PAI among Fig. 3 as) head in this INVITE, and expression called subscriber B should not see the number of calling subscriber A.At this moment, think that this calling is an anonymity call, as shown in Figure 3.
In the primary stage of IMS design, the class of business that can provide is abundant, has only calling subscriber's number can reflect calling subscriber's information.
But,, can not guarantee that like this called subscriber B can not see the identity information of calling subscriber A with other form along with the class of business among the IMS is day by day various.For example, CLIR service and color image service if user A has contracted simultaneously, and this user A with oneself identity informations such as photo as color image information, then when user A calling party B, though user B can't see the number of user A,, user B still can be by the CallInfo head in the INVITE, recognize that from color image information this is a calling from user A, thereby revealed the true identity of calling subscriber A, as shown in Figure 3.
Therefore, from the angle of user experience, if the called subscriber can't see calling subscriber's number, then this user polychrome that also should can't see the calling subscriber etc. can reflect the information of dialing user identity.
Regulation according to RFC-3323, when the value of the Privacy head in the request message that calling terminal sends is " header ", the server of this request message process can not increase the head of any sign dialing user identity in this message, comprise the CallInfo head of sign calling subscriber color image information etc., as shown in Figure 4.
But the processing mode of RFC-3323 remains defective.On the one hand, if characterize the head of dialing user identity information, for example color image information etc. is to be carried in the request message that sends by calling terminal, so still can cause the leakage of the dialing user identity in the anonymity call.On the other hand, because IMS and the irrelevant characteristic of access, therefore any intelligent terminal or unintelligent terminal can be linked in the IMS network by corresponding Access Network and enjoy multimedia service, and, also still can cause the leakage of the dialing user identity in the anonymity call for the unintelligent terminal that can not revise the Privacy field flexibly.
To sum up, the problem at causing user identity to be revealed in the above-mentioned anonymity call does not propose effective solution as yet in the correlation technique.
Summary of the invention
Consider the problem that may cause the user identity leakage in the prior art anonymity call and make the present invention, for this reason, main purpose of the present invention is to provide a kind of IP Multimedia System call processing method and device, to solve the aforementioned problems in the prior.
According to an aspect of the present invention, provide a kind of IP Multimedia System call processing method.
The method according to this invention comprises: the P-CSCF of visited network receives call message; If the Privacy head assignment in the call message is header, then comprise the head of calling subscriber equipment identity information in the P-CSCF deletion call message.
Preferably, deleting the head that comprises the calling subscriber equipment identity information in the call message further comprises: P-Asserted-Identity head and CallInfo head in the deletion call message.
Preferably, the P-CSCF of visited network receives before the call message, and this method further comprises: calling subscriber equipment makes a call to called subscriber equipment, and the signatory caller information of calling subscriber equipment shows limit service; Home network AS is header with the Privacy head assignment in the call message.
Preferably, the P-CSCF of visited network receives before the call message, and this method further comprises: calling subscriber equipment makes a call to called subscriber equipment, the not signatory calling information display service of called subscriber equipment; Visited network AS is header with the Privacy head assignment in the call message.
According to a further aspect in the invention, the processing unit that also provides a kind of IP Multimedia System to call out.
According to the inventive system comprises: receiver module is used to receive call message; Judge module is used for judging whether the Privacy head assignment of call message is header; Removing module, the result who is used for judging at judge module is under the situation that is, comprises the head of calling subscriber equipment identity information in the deletion call message.
Preferably, removing module further comprises: first removing module is used for deleting the P-Asserted-Identity head of call message; Second removing module is used for deleting the CallInfo head of call message.
Preferably, this device further comprises: the first assignment module, be used for showing under the situation of limit service at the signatory caller information of calling subscriber equipment, and be header with the Privacy head assignment in the call message.
Preferably, this device further comprises: the second assignment module, be used under the situation of the signatory calling information display service of called subscriber equipment, and be header with the Privacy head assignment in the call message.
According to technique scheme of the present invention, it by the Privacy head assignment in the visited network P-CSCF deletion call message head that comprises the calling subscriber equipment identity information in the call message of header, deleted the header information that might cause revealing dialing user identity, realize anonymity call truly, increased user experience.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to a kind of processing mode of the anonymity call of prior art;
Fig. 2 is the flow chart according to the another kind of processing mode of the anonymity call of prior art;
Fig. 3 is a schematic diagram of handling INVITE according to the P-CSCF of the anonymity call of prior art;
Fig. 4 is the flow chart according to the solution of the RFC3323 of the anonymity call of prior art;
Fig. 5 is the flow chart according to the processing method of the IMS calling of the embodiment of the invention;
Fig. 6 is the flow chart according to the inventive method embodiment one;
Fig. 7 is the flow chart according to the inventive method embodiment two;
Fig. 8 is a schematic diagram of handling INVITE according to the P-CSCF of the anonymity call of the inventive method embodiment;
Fig. 9 is the block diagram according to the processing unit of the IMS calling of the embodiment of the invention;
Figure 10 is the structured flowchart according to apparatus of the present invention embodiment one;
Figure 11 is the structured flowchart according to apparatus of the present invention embodiment two.
Embodiment
Main thought of the present invention mainly is, in the unified open multimedia service platform that IMS provides, along with day by day enriching of class of business, can not characterize user's identity information with user's number, the user can not carry out anonymity call by signatory CLIR service singlely singlely.Therefore, CLIR service need be expanded to caller information and show limit service, simultaneously, CLIP service is expanded to calling information display service, at this moment, calling UE can be initiated an anonymity call by signatory caller information demonstration limit service, and when called UE was contracted calling information display service, the calling that this called subscriber receives also was an anonymity call.In the process of this anonymity call, require called UE can't show the information of any expression calling UE identity.The present invention judges by the P-CSCF of visited network whether the Privacy head assignment that receives in the call message is header, and the operation of deleting the head that comprises the calling subscriber equipment identity information in the call message according to the result who judges, delete the header information that might cause revealing dialing user identity, realized anonymity call truly.
For making the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Method embodiment
According to embodiments of the invention, a kind of IMS call processing method has been proposed.
Fig. 5 is the flow chart according to the IMS call processing method of the embodiment of the invention, and as shown in Figure 1, this method comprises:
Step S502, the P-CSCF of visited network receives call message;
Step S504 if the Privacy head assignment in the call message is header, then comprises the head of calling subscriber equipment identity information in the P-CSCF deletion call message.
Further describe above-mentioned each details of handling in conjunction with Fig. 6 and Fig. 7 respectively below.
Fig. 6 is the schematic diagram according to the inventive method embodiment one, and as shown in Figure 6, this processing comprises:
Step S602, calling UE is initiated a calling (INVITE), and this calling UE is signatory to have caller information to show limit service; S-CSCF receives this INVITE and sends to home network AS.
Step S604 after the home network AS of calling UE receives this INVITE, is " header " with the Privacy head assignment in the INVITE, afterwards, this INVITE is sent to S-CSCF.With the Privacy head assignment in the INVITE is " header ", is the head that can not increase any sign calling UE identity for the server that makes this message process in this message.
Step S606, after callee side P-CSCF receives this INVITE, because the value of the Privacy head in the INVITE is " header ", delete then that all comprise the head of calling UE identity information in this INVITE, comprise P-Asserted-Identity head and CallInfo head etc.
Fig. 7 is the schematic diagram according to the inventive method embodiment two, and as shown in Figure 7, this processing comprises:
Step S702, calling UE is initiated a calling (INVITE), the not signatory calling information display service of called UE; S-CSCF receives this INVITE and sends to visited network AS.
Step S704 after the home domain AS of called UE receives this INVITE, is " header " with the Privacy head assignment in the INVITE, afterwards, this INVITE is sent to S-CSCF.With the Privacy head assignment in the INVITE is " header ", is the head that can not increase any sign calling UE identity for the server that makes this message process in this message.
Step S706, after callee side P-CSCF receives this INVITE, because the value of the Privacy head in the INVITE is " header ", delete then that all comprise the head of calling UE identity information in this INVITE, comprise P-Asserted-Identity head and CallInfo head etc.
All comprise the processing of the head of calling UE identity information in above-mentioned callee side P-CSCF deletion INVITE, with reference to figure 8, as shown in Figure 8, in the INVITE that callee side P-CSCF receives, comprise at least: P-Asserted-Identity (abbreviating PAI among Fig. 8 as) head, CallInfo head and Privacy head.Callee side P-CSCF judges that the value of Privacy head is " header ", then deletes P-Asserted-Identity head and CallInfo head.Wherein, P-Asserted-Identity head and CallInfo head may be used to characterize the user totem information of calling UE, and for example: the P-Asserted-Identity head is the number information of calling UE, and the CallInfo head is the color image information of calling UE.Through above-mentioned processing, the P-Asserted-Identity head and the CallInfo head that are used to characterize the calling UE identity information among the INVITE that called UE receives are deleted by P-CSCF, therefore, have avoided the calling UE identity to reveal.
Device embodiment
According to the embodiment of the invention, also provide a kind of IMS call-processing arrangement.
Fig. 9 is the block diagram according to the IMS call-processing arrangement of the embodiment of the invention, and as shown in Figure 9, this device comprises: receiver module 10, judge module 20, removing module 30.Wherein: receiver module 10 is used to receive call message; Judge module 20 is connected with receiver module 10, is used for judging whether the Privacy head assignment of call message is header; Removing module 30 is connected with judge module 20, and the result who is used for judging at judge module 20 is (being that Privacy head assignment is header) under the situation that is, comprises the head of calling subscriber equipment identity information in the deletion call message.Preferably, removing module 30 further comprises: the first removing module (not shown) is used for deleting the PAI head of call message; The second removing module (not shown) is used for deleting the CallInfo head of call message.In specific implementation process, first removing module and second removing module can be unified setting.
Figure 10 is the structured flowchart according to apparatus of the present invention embodiment one, as shown in figure 10, on the basis of structure shown in Figure 9, this device further comprises: the first assignment module 40, be connected with receiver module 10, being used for showing under the situation of limit service at the signatory caller information of calling subscriber equipment, is header with the Privacy head assignment in the call message.
Figure 11 is the structured flowchart according to apparatus of the present invention embodiment two, as shown in figure 11, on the basis of structure shown in Figure 9, this device further comprises: the second assignment module 50, be connected with receiver module 10, being used under the situation of the signatory calling information display service of called subscriber equipment, is header with the Privacy head assignment in the call message.
In concrete application process, the concrete workflow of the processing unit of calling out according to the IMS of the embodiment of the invention can not given unnecessary details with reference to shown in the figure 5 to Fig. 8 herein.
To sum up, the technique scheme according to the present invention, it by the Privacy head assignment in the visited network P-CSCF deletion call message head that comprises the calling subscriber equipment identity information in the call message of header, deleted the header information that might cause revealing dialing user identity, realize anonymity call truly, increased user experience.
The above is embodiments of the invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (8)
1. the processing method that IP Multimedia System is called out is characterized in that, comprising:
The Proxy Call Session Control Function P-CSCF of visited network receives call message;
If the Privacy head assignment in the described call message is header, then described P-CSCF deletes the head that comprises the calling subscriber equipment identity information in the described call message.
2. the method for claim 1 is characterized in that, comprises the head of calling subscriber equipment identity information in the described call message of described deletion, further comprises:
Delete P-Asserted-Identity head and CallInfo head in the described call message.
3. method as claimed in claim 1 or 2 is characterized in that, the P-CSCF of described visited network receives before the call message, and described method further comprises:
Described calling subscriber equipment makes a call to called subscriber equipment, and the signatory caller information of described calling subscriber equipment shows limit service;
The AS of home network applications service layer is header with the Privacy head assignment in the described call message.
4. method as claimed in claim 1 or 2 is characterized in that, the P-CSCF of described visited network receives before the call message, and described method further comprises:
Described calling subscriber equipment makes a call to called subscriber equipment, the not signatory calling information display service of described called subscriber equipment;
Visited network AS is header with the Privacy head assignment in the described call message.
5. the processing unit that IP Multimedia System is called out is characterized in that, comprising:
Receiver module is used to receive call message;
Judge module is used for judging whether the Privacy head assignment of described call message is header;
Removing module, the result who is used for judging at described judge module is under the situation that is, deletes the head that comprises the calling subscriber equipment identity information in the described call message.
6. device as claimed in claim 5 is characterized in that, described removing module further comprises:
First removing module is used for deleting the P-Asserted-Identity head of described call message;
Second removing module is used for deleting the CallInfo head of described call message.
7. as claim 5 or 6 described devices, it is characterized in that described device further comprises:
The first assignment module is used for showing under the situation of limit service at the signatory caller information of described calling subscriber equipment, is header with the Privacy head assignment in the described call message.
8. as claim 5 or 6 described devices, it is characterized in that described device further comprises:
The second assignment module is used under the situation of the signatory calling information display service of described called subscriber equipment, is header with the Privacy head assignment in the described call message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100087856A CN101998318A (en) | 2009-08-25 | 2009-08-25 | IP (Internet Protocol) multi-media subsystem call processing method and device |
| PCT/CN2010/074000 WO2011023023A1 (en) | 2009-08-25 | 2010-06-17 | Method and apparatus for processing internet protocol multimedia subsystem call |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100087856A CN101998318A (en) | 2009-08-25 | 2009-08-25 | IP (Internet Protocol) multi-media subsystem call processing method and device |
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| CN101998318A true CN101998318A (en) | 2011-03-30 |
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| CN2009100087856A Pending CN101998318A (en) | 2009-08-25 | 2009-08-25 | IP (Internet Protocol) multi-media subsystem call processing method and device |
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| WO (1) | WO2011023023A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10542137B1 (en) | 2018-08-10 | 2020-01-21 | T-Mobile Usa, Inc. | Scam call back protection |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110790A (en) * | 2006-07-18 | 2008-01-23 | 华为技术有限公司 | Method for establishing conversation |
| CN101184260A (en) * | 2007-10-30 | 2008-05-21 | 中兴通讯股份有限公司 | Method to implement calling name display in the next generation network |
| CN101378401A (en) * | 2007-08-31 | 2009-03-04 | 华为技术有限公司 | Method, system and equipment for controlling business resource authorization |
-
2009
- 2009-08-25 CN CN2009100087856A patent/CN101998318A/en active Pending
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2010
- 2010-06-17 WO PCT/CN2010/074000 patent/WO2011023023A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110790A (en) * | 2006-07-18 | 2008-01-23 | 华为技术有限公司 | Method for establishing conversation |
| CN101378401A (en) * | 2007-08-31 | 2009-03-04 | 华为技术有限公司 | Method, system and equipment for controlling business resource authorization |
| CN101184260A (en) * | 2007-10-30 | 2008-05-21 | 中兴通讯股份有限公司 | Method to implement calling name display in the next generation network |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10542137B1 (en) | 2018-08-10 | 2020-01-21 | T-Mobile Usa, Inc. | Scam call back protection |
| WO2020033138A1 (en) * | 2018-08-10 | 2020-02-13 | T-Mobile Usa, Inc. | Scam call back protection |
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| Publication number | Publication date |
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| WO2011023023A1 (en) | 2011-03-03 |
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Application publication date: 20110330 |