CN108243285B

CN108243285B - Telephone recording method and system

Info

Publication number: CN108243285B
Application number: CN201611201938.5A
Authority: CN
Inventors: 陈尚干; 张旭红; 赵新宇; 汪依婷
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2016-12-23
Filing date: 2016-12-23
Publication date: 2020-04-28
Anticipated expiration: 2036-12-23
Also published as: CN108243285A

Abstract

The invention discloses a telephone recording method and a telephone recording system. The method comprises the following steps: if the MSCe judges that at least one party of the calling user and the called user signs the telephone recording service, the MSCe triggers the service to an SCP intelligent platform of a service control point and connects the call to the SCP intelligent platform; the SCP intelligent platform inserts an access code in front of a called number and then sends the call back to the MSCe; MSCe sends the call to the recording platform through the access code; the recording platform triggers an interactive voice response IVR recording flow; the recording platform transforms a calling number and/or a called number; the recording platform sends the call to the IP multimedia system IMS domain, and the IMS domain completes the called routing. The invention can provide bidirectional telephone recording security service for signed customers, so as to meet the requirements of recording management and recording evidence security of the working telephone or mobile phone of the employee of an enterprise, and avoid telephone contradiction and telephone default risks.

Description

Telephone recording method and system

Technical Field

The invention relates to the field of mobile communication, in particular to a telephone recording method and a telephone recording system.

Background

At present, a recording product is lacked in the market, and the calling and called calls of a user can be recorded on the basis of not changing the use habits of the user. If the user wants to record the call in the call process, the user can use the software of the mobile phone or send the call to the recording platform by dialing the access code. These require changing the usage habits of the user and only enable call recording when the user is calling.

According to policy-related regulations, for example, financial enterprises must realize bidirectional recording when selling and marketing financial products, so that the enterprises hope to realize call full-range recording for both calling and called parties without changing the using method of the mobile phones of the enterprises.

Disclosure of Invention

In view of the above technical problems, the present invention provides a method and a system for telephone recording, which can provide a two-way telephone recording security service for a subscriber.

According to an aspect of the present invention, there is provided a telephone recording method comprising:

the MSCe judges whether at least one party of the calling party and the called party signs the call recording service;

if MSCe judges that at least one party of the calling user and the called user signs a telephone recording service, the MSCe triggers the service to a service control point SCP intelligent platform and connects the call to the SCP intelligent platform;

the SCP intelligent platform inserts an access code in front of a called number and then sends the call back to the MSCe;

MSCe sends the call to the recording platform through the access code;

the recording platform triggers an interactive voice response IVR recording flow;

the recording platform transforms a calling number and/or a called number;

the recording platform sends the call to the IP multimedia system IMS domain, and the IMS domain completes the called routing.

In an embodiment of the present invention, the converting the calling number and/or the called number by the recording platform includes:

the recording platform inserts different prefixes for the calling number and the called number according to whether the calling user and the called user are subscribers for the telephone recording service.

In an embodiment of the present invention, the recording platform inserts different prefixes for the calling and called numbers according to whether the calling and called users are subscribers of the telephone recording service, including:

if the calling user is a subscriber of the telephone recording service and the called user is a common user, different prefixes are respectively inserted in the calling and called numbers by the recording platform;

if the calling user is a common user and the called user is a telephone recording service subscriber, the recording platform is only the prefix pre-inserted for the called number;

if the calling subscriber and the called subscriber are both subscribers of the telephone recording service, the recording platform inserts the same prefix for the calling number and the called number respectively.

In an embodiment of the present invention, said performing the called routing by the IMS domain includes:

the media gateway control function MGCF network element sends the converted calling number and/or called number to the query-call session control function I-CSCF network element;

an I-CSCF network element inquires service-call session control function (S-CSCF) information of a calling subscriber and/or a called subscriber from a Home Subscriber Server (HSS);

the I-CSCF network element sends the call to the S-CSCF network element;

the S-CSCF network element inquires and acquires the subscription information of the calling subscriber and/or the called subscriber from the HSS;

the S-CSCF network element sends the call to the SCP intelligent platform to trigger the calling and/or called intelligent service for the second time;

the S-CSCF connects the call to the MGCF;

MGCF analyzes the number and sends the call to corresponding network element to complete the called side connection.

In one embodiment of the invention, the method further comprises:

the SCP intelligent platform associates the first service trigger with the second service trigger, extracts the position information when the first service trigger is carried out, and stores the position information into the call ticket of the second intelligent service trigger so as to ensure the integrity of the call ticket.

In an embodiment of the present invention, if the called user is a telephone recording service subscriber, after the S-CSCF network element sends the call to the SCP intelligent platform to trigger the calling and/or called intelligent services for the second time, the method further includes:

the SCP intelligent platform extracts the position information of the called user from the home location register HLRe;

the SCP fills charging position information according to the acquired position information of the called user, and then returns the call to the S-CSCF; and then executing the step that the S-CSCF connects the call to the MGCF.

In an embodiment of the present invention, if the calling subscriber is a normal subscriber and the called subscriber is a subscriber to the telephone recording service, the method further includes:

MSCe receives the call from user;

the MSCe obtains the called user information from the home location register HLRe, and then executes the mobile soft switching center MSCe to judge whether at least one of the calling user and the called user signs the call record service.

According to another aspect of the present invention, there is provided a telephone recording system, including a mobile soft switching center MSCe, a service control point SCP intelligent platform, a recording platform, and an IP multimedia system IMS domain network element, wherein:

MSCe, is used for judging whether at least one party in caller and called party signs the call recording business; under the condition that at least one of the calling user and the called user signs a telephone recording service, the service is triggered to a Service Control Point (SCP) intelligent platform, and the call is connected to the SCP intelligent platform;

the SCP intelligent platform is used for inserting an access code in front of a called number and then sending the call back to the MSCe so that the MSCe can send the call to the recording platform through the access code;

the recording platform is used for triggering an interactive voice response IVR recording process; converting the calling number and/or the called number; and sending the call to an IP multimedia system, IMS, domain;

and the IMS domain network element is used for finishing the called route.

In an embodiment of the present invention, the recording platform is configured to prepend different prefixes to the calling and called numbers according to whether the calling and called users are subscribers to the telephone recording service.

In an embodiment of the invention, the recording platform is used for respectively pre-inserting different prefixes for the calling number and the called number under the condition that the calling user is a telephone recording service subscriber and the called user is a common user; under the condition that a calling user is a common user and a called user is a telephone recording service subscriber, only prefix is inserted before a called number; under the condition that a calling user and a called user are both subscribers of the telephone recording service, the same prefixes are respectively inserted in front of the calling number and the called number.

In an embodiment of the present invention, the IMS domain network element includes a media gateway control function MGCF, an inquiry-call session control function I-CSCF network element, a home subscriber server HSS, and a service-call session control function S-CSCF network element, where:

MGCF network element, is used for sending calling number and/or called number after changing to inquiring-call conversation control function I-CSCF network element;

an I-CSCF network element used for inquiring the service-call session control function S-CSCF information of a calling subscriber and/or a called subscriber from a Home Subscriber Server (HSS); and sending the call to an S-CSCF network element;

the S-CSCF network element is used for inquiring and acquiring the subscription information of the calling subscriber and/or the called subscriber from the HSS; sending the call to an SCP intelligent platform to trigger a calling intelligent service and/or a called intelligent service for the second time; and the call is connected to the MGCF, so that the MGCF sends the call to a corresponding network element after number analysis, and the called side connection is completed.

In an embodiment of the present invention, the SCP intelligent platform is further configured to associate the first service trigger with the second service trigger, extract the location information when the service is triggered for the first time, and store the location information in the ticket triggering the intelligent service for the second time, so as to ensure the integrity of the ticket.

In one embodiment of the invention, the system further comprises a home location register HLRe, wherein:

the SCP intelligent platform is also used for extracting the position information of the called user from a home location register HLRe after the called user is a telephone recording service subscriber and the calling is sent to the SCP intelligent platform by the S-CSCF network element to trigger the calling and/or called intelligent services for the second time; filling charging position information according to the acquired position information of the called user, and then returning the call to the S-CSCF; and then instructs the S-CSCF to perform an operation of connecting the call to the MGCF.

In one embodiment of the invention, the MSCe is also used to receive user-initiated calls; and obtaining the called user information from the home location register HLRe, and then executing the operation of judging whether at least one of the calling user and the called user signs the telephone recording service.

The invention can provide bidirectional telephone recording security service for the contracted client. Under the condition that the using habit of a user is not changed and the user does not sense, the user is subjected to bidirectional recording of incoming calls and outgoing calls, so that the requirements of recording management and recording evidence preservation of working phones or mobile phones of employees by enterprises are met, and the phone contradiction and phone default risks are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a diagram of a first embodiment of a recording system according to the present invention.

FIG. 2 is a diagram of a second embodiment of a recording system according to the present invention.

Fig. 3 is a schematic diagram of a recording method of a telephone call according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of an IMS domain completing a called route in an embodiment of the present invention.

Fig. 5 is a diagram illustrating a first embodiment of a method and system for recording telephone calls according to the present invention.

Fig. 6 is a diagram illustrating a second embodiment of the recording method and system of the present invention.

Fig. 7 is a diagram illustrating a third embodiment of the recording method and system of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

FIG. 1 is a diagram of a first embodiment of a recording system according to the present invention. As shown in fig. 1, the telephone recording system includes an IMS (IP Multimedia system) domain network element 100, a CS (Circuit Switched) domain network element 200, an NGCC (Next Generation Call Center) recording platform 300, and an SCP (service control point) intelligent platform 400, in which:

CS domain network element 200 includes an MSCe (Mobile Switching Center) 210, where:

MSCe210, is used for judging whether at least one party in caller and called subscriber signs up the business of the telephone recording; and under the condition that at least one of the calling subscriber and the called subscriber signs the telephone recording service, the service is triggered to the SCP intelligent platform 400, and the call is connected to the SCP intelligent platform 400.

The SCP intelligent platform 400 is used to insert an access code before the called number and then send the call back to the MSCe210, so that the MSCe210 sends the call to the recording platform 300 through the access code.

An NGCC recording platform 300 for triggering an IVR (Interactive Voice Response) recording process; converting the calling number and/or the called number; and routing the call to the IP multimedia system IMS domain.

And the IMS domain network element 100 is configured to complete the called routing.

In an embodiment of the present invention, the recording platform 300 may be configured to prefix different prefixes for the calling and called numbers according to whether the calling and called users are subscribers to the voice recording service.

In an embodiment of the present invention, the recording platform 300 may be configured to insert different prefixes for the calling number and the called number respectively when the calling user is a subscriber to the telephone recording service and the called user is a common user; under the condition that a calling user is a common user and a called user is a telephone recording service subscriber, only prefix is inserted before a called number; under the condition that a calling user and a called user are both subscribers of the telephone recording service, the same prefixes are respectively inserted in front of the calling number and the called number.

In an embodiment of the present invention, as shown in fig. 1, the IMS domain network element 100 includes an MGCF (media gateway Control Function) network element 110, an I-CSCF (inquiring-Call Session Control Function) network element 120, an HSS (Home subscriber server) 130, and an S-CSCF (Serving-Call Session Control Function) network element 140, where:

MGCF network element 110, configured to send the converted calling number and/or called number to query-call session control function I-CSCF network element 120.

An I-CSCF network element 120 for querying a serving-call session control function, S-CSCF, information of a calling subscriber and/or a called subscriber from a home subscriber server, HSS 130; and to direct the call to the S-CSCF network element 140.

The S-CSCF network element 140 is configured to query and acquire subscription information of a calling subscriber and/or a called subscriber from the HSS 130; sending the call to the SCP intelligent platform 400 to trigger the calling and/or called intelligent service for the second time; and the call is connected to the MGCF, so that the MGCF sends the call to a corresponding network element after number analysis, and the called side connection is completed.

In an embodiment of the present invention, the SCP intelligent platform 400 may also be configured to associate the first service trigger with the second service trigger, extract the location information when the service is triggered for the first time, and store the location information in the ticket triggering the intelligent service for the second time, so as to ensure the integrity of the ticket.

Based on the telephone recording system provided by the embodiment of the invention, a solution for realizing the recording of the mobile phone and the fixed telephone in the IMS network is provided, and a bidirectional telephone recording security service can be provided for the contracted client. The embodiment of the invention carries out bidirectional recording of incoming and outgoing calls on the working telephone or the mobile phone of the user under the conditions of not changing the use habit of the user and no perception of the user, so as to meet the requirements of recording management and recording evidence preservation on the working telephone or the mobile phone of the employee by enterprises and avoid telephone contradiction and telephone default risks.

FIG. 2 is a diagram of a second embodiment of a recording system according to the present invention. Compared with the embodiment of fig. 1, in the embodiment of fig. 2, the CS domain network element 200 may further include an HLRe (Home Location Register) 220, where:

the SCP intelligent platform 400 may also be configured to extract the called user location information from the home location register HLRe220 after the called user is a telephone recording service subscriber and the calling is sent to the SCP intelligent platform 400 by the S-CSCF network element 140 to trigger the calling and/or called intelligent services for the second time; filling charging position information according to the acquired position information of the called user, and then returning the call to the S-CSCF; and then instructs the S-CSCF to perform an operation of connecting the call to the MGCF.

In one embodiment of the present invention, MSCe210 may also be used to receive user-initiated calls; the called user information is obtained from the home location register HLRe220e, and then the operation of judging whether at least one of the calling user and the called user signs the telephone recording service is executed.

In an embodiment of the present invention, as shown in fig. 1 or fig. 2, the CS domain network element 200 may further include a MGW (Media Gateway) 230 and a BSC (Base Station Controller) 240, wherein the user terminal 250 establishes a connection with the MSCe210 through the BSC240 and the MGW 230.

In order to prevent endless loop caused by repeated triggering of intelligent network services, the recording platform sends the call into the IMS domain, and network elements such as CSCF (call session control function) and HSS (home subscriber server) of the IMS network element are matched with each other to complete the routing of the called party.

The recording platform of the embodiment of the invention inserts different prefixes in front of the calling and called numbers according to whether the calling and called numbers are the telephone recording service or not, and numbers are released in the HSS of the IMS, so that a network element in the IMS domain can judge whether the calling and called numbers sign the telephone recording service or not, and the triggering of the intelligent service is carried out.

Compared with the existing telephone recording technology, the embodiment of the invention can realize the telephone recording when the user is used as a calling party and a called party. At present, all products in the market can only realize calling recording, a user sends a call to a recording platform for recording by dialing an access code and a telephone number, but the user cannot record when the user is used as a called party to answer the call. The embodiment of the invention can solve the problem, does not change the use habit of the user, and does not need to dial the access code or download the APP.

Fig. 3 is a schematic diagram of a recording method of a telephone call according to an embodiment of the present invention. Preferably, this embodiment can be performed by the telephone recording system of the present invention. As shown in fig. 3, the method may include:

step 31, the msc ce210 determines whether at least one of the calling subscriber and the called subscriber signs up for the telephone recording service.

Step 32, if the MSCe210 judges that at least one of the calling subscriber and the called subscriber signs the call recording service, it triggers the service to the service control point SCP intelligent platform 400 for the first time, and connects the call to the SCP intelligent platform 400.

In step 33, the SCP intelligent platform 400 inserts an access code before the called number and then sends the call back to the MSCe 210.

At step 34, MSCe210 sends the call to voice recording platform 300 via the access code.

Step 35, the recording platform 300 triggers the interactive voice response IVR recording process.

Step 36, the recording platform 300 transforms the calling number and/or the called number.

Step 37, the recording platform 300 sends the call to the IMS domain of the IP multimedia system, and the IMS domain completes the called routing.

In one embodiment of the present invention, step 36 may comprise: the recording platform 300 inserts different prefixes for the calling and called numbers according to whether the calling and called users are subscribers of the telephone recording service.

In an embodiment of the present invention, the step of inserting different prefixes in front of the calling and called numbers by the recording platform 300 according to whether the calling and called users are subscribers of the telephone recording service may include: if the calling subscriber is a subscriber of the telephone recording service and the called subscriber is a common subscriber, the recording platform 300 inserts different prefixes for the calling and called numbers respectively; if the calling subscriber is a common subscriber and the called subscriber is a subscriber of the telephone recording service, the recording platform 300 only inserts prefixes for the called number; if the calling subscriber and the called subscriber are both subscribers to the telephone recording service, the recording platform 300 inserts the same prefix for the calling number and the called number respectively.

In an embodiment of the present invention, if the calling subscriber is a normal subscriber and the called subscriber is a subscriber to the telephone recording service, the method may further include: MSCe210 receives the call from user; MSCe210 obtains the called subscriber information from home location register HLRe220e and then performs step 31 of the embodiment of fig. 3.

Based on the telephone recording method provided by the embodiment of the invention, a solution for realizing the recording of the mobile phone and the fixed telephone in the IMS network is provided, and a bidirectional telephone recording security service can be provided for the contracted client. The embodiment of the invention carries out bidirectional recording of incoming and outgoing calls on the working telephone or the mobile phone of the user under the conditions of not changing the use habit of the user and no perception of the user, so as to meet the requirements of recording management and recording evidence preservation on the working telephone or the mobile phone of the employee by enterprises and avoid telephone contradiction and telephone default risks.

Fig. 4 is a schematic diagram of an IMS domain completing a called route in an embodiment of the present invention. As shown in fig. 4, in step 37 of the embodiment of fig. 3, the step of completing the called routing by the IMS domain may include:

in step 371, the media gateway control function MGCF network element 110 sends the converted calling number and/or called number to the query-call session control function I-CSCF network element 120.

In step 372, the I-CSCF network element 120 queries the serving-call session control function, S-CSCF, information of the calling subscriber and/or the called subscriber from the home subscriber server, HSS 130.

In step 373, the I-CSCF network element 120 sends the call to the S-CSCF network element 140.

In step 374, the S-CSCF network element 140 queries and obtains subscription information of the calling subscriber and/or the called subscriber from the HSS 130.

For the subscriber with the telephone record preservation function, at HSS, the subscription IMPU (IP Multimedia public identity) is tel: +86(preX) mobile phone number and sip: 86(preX) mobile number @ device domain name.

In step 375, the S-CSCF network element 140 sends the call to the SCP intelligent platform 400, triggering the calling and/or called intelligent services for the second time.

In step 376, the S-CSCF forwards the call to the MGCF.

Step 377, the MGCF performs number analysis and then sends the call to the corresponding network element to complete the called side connection.

In one embodiment of the present invention, the method may further include: the SCP intelligent platform 400 associates the first service trigger with the second service trigger, extracts the location information when the service is triggered for the first time, and stores the location information into the ticket for triggering the intelligent service for the second time, so as to ensure the integrity of the ticket.

In an embodiment of the present invention, if the called subscriber is a subscriber to the voice recording service, after step 375 in the embodiment of fig. 4, the method may further include: the SCP intelligent platform 400 extracts the called user position information from the home location register HLRe 220; the SCP fills charging position information according to the acquired position information of the called user, and then returns the call to the S-CSCF; step 376 of the embodiment of fig. 4 is then performed.

The method and system for recording telephone calls of the present invention are described in three specific embodiments below.

Fig. 5 is a diagram illustrating a first embodiment of a method and system for recording telephone calls according to the present invention. In the embodiment of fig. 5, the calling subscriber is a telephone recording security subscriber, and the called subscriber is a normal subscriber (calling a, called B). As shown in fig. 5, the telephone recording method may include:

step 1, calling side calls are sent to calling side MSCe (calling A, called B).

Step 2, MSCe finds the user has the attribute of signing the intelligent network, then triggers the service to SCP (calling A, called B).

And 3, adding an access code in front of the called number by the SCP and returning the access code to the MSCe, and simultaneously recording the position information (calling A, called 0251183325+ B) of the calling number.

And step 4, the MSCe is sent to the NGCC recording platform (calling A, called 0251183325+ B) according to the access code 0251183325.

And 5, triggering an IVR recording flow by the NGCC recording platform, and converting the calling party and the called party to be sent to the MGCF (calling party preX + A and called party preY + B).

And 6, MGCF judges that the calling party is preX + A, supplements the number into orig field, and sends INVITE message to I-CSCF (calling party preX + A, called party preY + B) as the basis for triggering the calling intelligent network service subsequently.

And 7, the I-CSCF initiates an LIR message to the HSS to acquire S-CSCF information (calling preX + A and called preY + B) of the calling subscriber preX + A.

And 8, the HSS returns S-CSCF information (calling preX + A and called preY + B) to the I-CSCF through the LIA.

Step 9, the I-CSCF initiates an INVITE message (calling preX + A, called preY + B) to the S-CSCF.

Step 10, the S-CSCF initiates an SAR message to the HSS to acquire the subscription information (calling preX + A and called preY + B) of calling user preX + A.

Step 11, the HSS returns the signed iFC (Initial filter criterion, Initial filter rule) of the calling user preX + a through the SAA message (calling preX + a, called preY + B).

And step 12, the S-CSCF triggers the intelligent calling service to the SCP (calling preX + A and called preY + B) according to the signed iFC.

And step 13, the SCP extracts the position information of the calling number recorded before as the position information (calling preX + A and called preY + B) of the current trigger process, and then returns the call to the S-CSCF.

Step 14, the S-CSCF directly analyzes the access code preY, and the analysis result is MGCF (calling preX + a, called preY + B).

Step 15, MGCF transforms the calling and called number, and sends it to C network to make called connection (calling A, called B).

Fig. 6 is a diagram illustrating a second embodiment of the recording method and system of the present invention. In the embodiment of fig. 6, the calling subscriber is a normal subscriber, and the called subscriber is a telephone recording security subscriber (calling a, called B). As shown in fig. 6, the telephone recording method may include:

step 1, a calling MSCe receives a call (calling A, called B) initiated by a user.

And 2, the calling MSCe initiates a LOCREQ message to the HLRe to acquire the called user information (calling A and called B).

And 3, the HLRe returns the information of the called user, including service information (calling A and called B).

Step 4, MSCe judges that the user signs the intelligent network, and triggers the service to SCP (calling A, called B).

And step 5, the SCP inserts an access code in front of the called number and returns the access code to MSCe (a calling party A, a called party 0251183325+ B).

Step 6, MSCe sends to NGCC platform (Caller A, Caller 0251183325+ B) according to the access code 0251183325.

And 7, triggering an IVR recording flow by the NGCC platform, and converting the calling party and the called party to be sent to the MGCF (calling party A, called party preZ + B).

And step 8, the MGCF identifies that the prefix preZ is in front of the called number, replaces the prefix of the called number with preX, is convenient for the follow-up HSS inquiry and sends an INVITE message to the I-CSCF (calling A, called preX + B).

And 9, the I-CSCF initiates an LIR message to the HSS to acquire S-CSCF information (calling party A and called party preX + B) of the called party preX + B.

Step 10, HSS returns S-CSCF information (calling A, called preX + B) to I-CSCF through LIA.

Step 11, the I-CSCF initiates an INVITE message (caller a, called preX + B) to the S-CSCF.

Step 12, the S-CSCF initiates an SAR message to the HSS to acquire the subscription information (calling A, called preX + B) of the calling user preX + B.

Step 13, the HSS returns the signed iFC (calling a, called preX + B) of calling user preX + B through the SAA message.

Step 14, the S-CSCF triggers the calling intelligent service to the SCP (calling a, called preX + B) according to the signed iFC.

Step 15, SCP sends SEARCH message to HLRe to extract the called user position information (called number B).

And step 16, the HLRe returns the MSCID of the called user to the SCP.

And step 17, the SCP fills the charging position information according to the acquired MSCID, and then returns the call to the S-CSCF.

Step 18, the S-CSCF directly analyzes the access code preX, and the analysis result is MGCF (calling a, called preX + B).

Step 19, MGCF converts the called number and sends it to network C for called connection (calling a, called B).

Fig. 7 is a diagram illustrating a third embodiment of the recording method and system of the present invention. In the embodiment of fig. 7, both the calling subscriber and the called subscriber are telephone recording security subscribers (calling a, called B). As shown in fig. 7, the telephone recording method may include:

step 1, calling side calls are sent to calling side MSCe (calling A, called B).

And step 4, the MSCe is sent to the NGCC platform (calling A, called 0251183325+ B) according to the access code 0251183325.

And 5, triggering an IVR recording flow by the NGCC platform, and converting the calling party and the called party to be sent to the MGCF (calling party preX + A and called party preX + B).

And 6, the MGCF fills the orig field with the calling preX + A and sends an INVITE message to the I-CSCF (calling preX + A and called preX + B).

And 7, the I-CSCF initiates an LIR message to the HSS to acquire S-CSCF information (calling preX + A and called preX + B) of the calling subscriber preX + A.

And 8, the HSS returns S-CSCF information (calling preX + A and called preX + B) of the calling preX + A to the I-CSCF through the LIA.

Step 9, the I-CSCF initiates an INVITE message (calling preX + A, called preX + B) to the S-CSCF.

Step 10, the S-CSCF initiates an SAR message to the HSS to acquire the subscription information (calling preX + A and called preX + B) of calling user preX + A.

Step 11, the HSS returns the signed iFC of the calling user preX + a (calling preX + a, called preY + B) through the SAA message.

And step 13, the SCP extracts the position information of the calling number recorded before as the position information (calling preX + A and called preX + B) of the current trigger process, and then returns the call to the S-CSCF.

And step 14, the S-CSCF triggers the calling intelligent service, and sends the called number preX + B to the called side I-CSCF to trigger the called side intelligent service flow.

Step 15, the I-CSCF initiates an LIR message to the HSS to obtain S-CSCF information (calling preX + A, called preX + B) of the called subscriber preX + B.

And step 16, the HSS returns S-CSCF information (calling preX + A and called preX + B) to the I-CSCF through the LIA.

Step 17, the I-CSCF initiates an INVITE message (caller preX + a, called preX + B) to the S-CSCF.

Step 18, the S-CSCF initiates an SAR message to the HSS to obtain subscription information (calling preX + a, called preX + B) of calling subscriber preX + B.

Step 19, the HSS returns the signed iFC of the calling subscriber preX + B (calling preX + a, called preX + B) via the SAA message.

Step 20, the S-CSCF triggers the calling intelligent service to the SCP (calling preX + a, called preX + B) according to the signed iFC.

Step 21, SCP sends SEARCH message to HLRe to extract called user position information (called number B).

And step 22, the HLRe returns the MSCID of the called user to the SCP.

And step 23, the SCP fills the charging position information according to the acquired MSCID, and then returns the call to the S-CSCF.

Step 24, the S-CSCF directly analyzes the access code preX, and the analysis result is MGCF (calling preX + a, called preX + B).

Step 25, MGCF transforms the called number and sends it to C network to make called connection (calling A, called B).

The above embodiments of the present invention provide a solution for realizing mobile phone and fixed phone recording in an IMS network, and can provide a two-way call recording security service for a subscriber. The embodiment of the invention carries out bidirectional recording of incoming and outgoing calls on the working telephone or the mobile phone of the user under the conditions of not changing the use habit of the user and no perception of the user, so as to meet the requirements of recording management and recording evidence preservation on the working telephone or the mobile phone of the employee by enterprises and avoid telephone contradiction and telephone default risks.

In order to realize the integrity of the intelligent call ticket, the intelligent platform associates the first service trigger with the second service trigger, extracts the position information when the first service trigger is carried out, and stores the position information into the call ticket for triggering the intelligent service for the second time, thereby ensuring the integrity of the call ticket.

Functional units such as IMS domain network elements, CS domain network elements, NGCC voice recording platforms, SCP intelligent platforms, etc. described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof, for performing the functions described herein.

Thus far, the present invention has been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A method of recording a telephone call, comprising:

MSCe sends the call to the recording platform through the access code;

the recording platform transforms a calling number and/or a called number;

the recording platform sends the call to an IP multimedia system IMS domain, and the IMS domain completes the routing of the called party;

wherein, the recording platform transforms the calling number and/or the called number and comprises:

if the calling user and the called user are both subscribers of the telephone recording service, the recording platform inserts the same prefix for the calling number and the called number respectively;

wherein the completing, by the IMS domain, the called routing comprises:

the I-CSCF network element sends the call to the S-CSCF network element;

the S-CSCF connects the call to the MGCF;

2. The method of claim 1, wherein the recording platform transforming the calling number and/or the called number comprises:

3. The method of claim 1 or 2, further comprising:

4. The method according to claim 1 or 2, wherein if the called user is a telephone recording service subscriber, after the S-CSCF network element sends the call to the SCP intelligent platform to trigger the calling and/or called intelligent services for the second time, the method further comprises:

5. The method according to claim 1 or 2, wherein if the calling subscriber is a normal subscriber and the called subscriber is a subscriber for the telephone recording service, the method further comprises:

MSCe receives the call from user;

6. A telephone recording system is characterized in that the system comprises a mobile soft switching center MSCe, a service control point SCP intelligent platform, a recording platform and an IP multimedia system IMS domain network element, wherein:

IMS field network element, is used for finishing the route of the called party;

the recording platform is used for inserting different prefixes for calling and called numbers respectively under the condition that a calling user is a telephone recording service subscriber and a called user is a common user; under the condition that a calling user is a common user and a called user is a telephone recording service subscriber, only prefix is inserted before a called number; under the condition that a calling user and a called user are both subscribers of the telephone recording service, the same prefixes are respectively inserted in front of a calling number and a called number;

the IMS domain network element comprises a media gateway control function MGCF, an inquiry-call session control function I-CSCF network element, a home subscriber server HSS and a service-call session control function S-CSCF network element, wherein:

7. The system of claim 6,

the recording platform is used for pre-inserting different prefixes for the calling number and the called number according to whether the calling user and the called user are subscribers of the telephone recording service.

8. The system of claim 6 or 7,

the SCP intelligent platform is also used for associating the first service triggering with the second service triggering, extracting the position information when the first service triggering is carried out, and storing the position information into the call ticket of the second intelligent service triggering so as to ensure the integrity of the call ticket.

9. The system according to claim 6 or 7, further comprising a home location register (HLRe), wherein:

10. The system of claim 6 or 7,

MSCe is also used to receive the call from user; and obtaining the called user information from the home location register HLRe, and then executing the operation of judging whether at least one of the calling user and the called user signs the telephone recording service.