CN1980287A

CN1980287A - Method for multi-media limiting bussiness in IMS field

Info

Publication number: CN1980287A
Application number: CN 200510131022
Authority: CN
Inventors: 张文颖; 杨飞; 陈士金
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2005-12-08
Filing date: 2005-12-08
Publication date: 2007-06-13

Abstract

A method for restricting services of CRBT in an IMS domain, comprising steps: a user customizes a service of CRBT restriction; when a user calls a called user, the calling side CSCF judges whether the calling user has customized a service of CRBT restriction according to an initial filtering criterion; The user customizes the CRBT restriction service, and the CSCF at the calling side modifies the Invite message so that it carries the CRBT restriction service flag; the CSCF at the calling side forwards the modified Invite message to the CSCF at the called side; the CSCF at the called side receives the Invite message After analysis, it is found that the calling party has customized the CRBT restriction service, and no matter whether the called user subscribes to the CRBT service, the CRBT service will not be triggered; the called side executes the normal call process and plays a common ring back tone to the calling user. The present invention can realize that the calling user restricts the characteristic ring back tone of the called user, and the user can customize the ring back tone restriction service through various methods such as short message/Web.

Description

The method of CRBT limit service in the IMS territory

Technical field

The present invention relates to the method that Calling Side limits Ring Back Tone service in the IMS territory.

Background technology

CRBT, promptly personalized ring back tone service makes the calling subscriber can hear personalized the tinkle of bells dialing others' phone, rather than the beeping sound of original dullness.

At present GSM, in CDMA or even the fixed telephone network, carrying out of personalized ring back tone service is like a raging fire, and has obtained great success.When other users (calling subscriber) call out the Subscriber Number (called subscriber) of this Customized Ring Back Tone registration, before it connects off-hook, the calling subscriber is put the message that a section music, advertisement or called subscriber oneself sets, at this moment the calling subscriber hears the Customized Ring Back Tone of being set in system by service-user exactly, and this mode has been accepted by people gradually and extensively adopted.

Future based on the IMS network of IP in personalized ring back tone service also should be more widely used.

For present multimedia ring service system is described better, chart 2 has provided the system configuration of IMS territory Ring Back Tone service.Wherein 201 subscriber equipmenies (hereinafter to be referred as UE) comprise all users that are registered to the IMS territory, comprise portable terminal, fixed terminal, SIP software terminal etc.202 CSCFs (hereinafter to be referred as CSCF) are the calling control cores of IMS system.203 application servers (hereinafter to be referred as AS), SIP AS for example, OSA AS and CAMEL IM-SSF provide value-added service, and it can be positioned at user's home network or third-party position.204 Multimedia resource function controller (MRFC)s (hereinafter to be referred as MRFC) are mainly finished the media resource controlled function among the MRFP, this functional entity can with AS on a physical entity.205 Multimedia resource function processor (MRFP)s (hereinafter to be referred as MRFP) mainly are to handle the resource relevant with depositing medium.

In present network, Customized Ring Back Tone is generally customized by the called subscriber, the Customized Ring Back Tone of accepting callee's customization that Calling Side is passive, and can't the characteristic ring-back tone be controlled, make this professional flexibility be subjected to very big restriction.In some cases, Calling Side is forced to accept the own ring-back tone of sampling that is not suitable for of callee's customization possibly.Accept rock'n'roll CRBT when for example the elderly dials young man's phone possibly, when dialing the elderly's phone, the young man is forced to appreciate Beijing opera segment CRBT possibly, the heart patient might be subjected to the interference of mischief or terrified image CRBT, especially frequently dial certain number the time listen to the ring-back tone of oneself disliking and just become and be difficult to more stand.Along with popularizing of Ring Back Tone service, single situation by callee's custom-tailoring color ring service should obtain changing, and makes the hommization more of this business, satisfies people's various demands.

Summary of the invention

The purpose of this invention is to provide the method that realizes the CRBT limit service in a kind of IMS territory.

For achieving the above object, the method for CRBT limit service in a kind of IMS territory comprises step:

(1) customized ring back tone limit service;

(2) when the customer call called subscriber, Calling Side CSCF judges according to initial filter standard or norm whether the calling subscriber has customized the CRBT limit service;

(3) if the calling subscriber has customized the CRBT limit service, Calling Side CSCF then revises Invite message, makes it carry CRBT limit service mark;

(4) Calling Side CSCF is with the CSCF of amended Invite forwards to callee side;

(5) callee side CSCF resolves after receiving Invite message, has found the CRBT limit service calling customized, then no matter called subscriber's custom-tailoring color ring service whether does not then trigger Ring Back Tone service;

(6) callee side is carried out the normal call flow process, plays common ring-back tone to the calling subscriber.

The present invention can realize that the calling subscriber limits called subscriber's characteristic ring-back tone, and the user can be by multiple mode custom-made color ring limit services such as note/Web.

Description of drawings

Fig. 1 is the method flow diagram of CRBT limit service in the IMS territory;

Fig. 2 is a system construction drawing of realizing Ring Back Tone service in the IMS territory;

Fig. 3 is CRBT limit service signaling process figure in the IMS territory;

Fig. 4 is an IMS territory Colorful Ring Service flow chart.

Embodiment

Fig. 1 is a method flow of realizing the CRBT limit service in the IMS territory.

Calling procedure of 101 beginnings

102 Calling Side CSCF judge whether custom-made color ring limit service of calling subscriber according to initial filter standard or norm, the object of initial filter standard or norm (being that the user is to which customized ring back tone limit service) can be one or more users according to user's demand, mode also can be selected note customization/Web customization/shortcode customization/multiple modes such as artificial customization in addition, satisfies user's demand as far as possible easily;

103 if the calling subscriber does not have the custom-made color ring limit service, then carries out normal calling procedure;

104 if the calling subscriber has customized the CRBT limit service, and then Calling Side CSCF carries caller restriction CRBT mark in mailing to the Invite message of callee side CSCF;

105 callee side CSCF find to contain the CRBT restricted information in this message after receiving this Invite message, then do not transmit this message to AS;

106 replay calls continue normal calling procedure

Fig. 3 is CRBT limit service realization flow figure in the IMS territory, and concrete steps are as follows:

301:UE sends INVITE and asks Calling Side CSCF, and wherein SDP comprises the media capability that UE supports;

302: Calling Side CSCF responds 100 Trying to the INVITE request of receiving;

303: Calling Side CSCF (should be the S-CSCF functional module of system) carries out the initial filter standard or norm assessment according to user's business datum;

304: Calling Side CSCF assesses according to initial filter standard or norm, revises the INVITE request, carries CRBT limit service information in this message, and this message is sent to callee side CSCF; 305: callee side CSCF learns that according to the CRBT limit markers of carrying in the Invite message of receiving the calling subscriber has customized the CRBT limit service, does not then trigger Ring Back Tone service (promptly not transmitting this Invite message to AS), but carries out normal calling procedure;

306: callee side CSCF responds 100 Trying to the INVITE request of receiving;

307: callee side CSCF continues to transmit INVITE;

308: callee side CSCF receives 100 Trying Temporary Responses to the INVITE request;

309: the 100 Trying Temporary Responses that change before Calling Side CSCF receives;

310: callee side CSCF receives the response of 183 session progress, and wherein SDP comprises the Media Stream ability that destination is supported;

311: Calling Side CSCF receives the 183 session progress response of forwarding;

312: Calling Side CSCF (should be the P-CSCF functional module of system) authorizes the QoS resource based on the local policy of operator;

313: change 183 session progress before the Calling Side CSCF to UE;

314:UE decides the used Media Stream of this session according to the Media Stream ability received in 183 session progress, and the media stream packets that this is final is contained among the new SDP, sends to CSCF with the PRACK request;

315:UE is initiated as the required resource reservation process of this session according to the Media Stream characteristic that is determined;

316: Calling Side CSCF forwards callee side CSCF to before PRACK is asked;

317: change the PRACK request before callee side CSCF continues;

318: callee side CSCF receives 200 OK response;

319: the 200 OK response of changeing before Calling Side AS receives;

320: Calling Side CSCF forwards UE to before 200 OK are responded;

321: the resource reservation process of initiating as UE finishes, and UE sends the UPDATE request and notifies the other side;

322: change UPDATE before the Calling Side CSCF and ask to callee side CSCF;

323: change the UPDATE request before callee side CSCF continues;

324: callee side CSCF receives the 200 OKs response of destination to the UPDATE request;

325: callee side CSCF forwards Calling Side CSCF to before 200 OK are responded;

326: Calling Side CSCF forwards UE to before 200 OK are responded;

327: callee side CSCF receives the 180 Ringing response of opposite end;

328: callee side CSCF forwards Calling Side CSCF to before 180 Ringing are responded;

329: Calling Side CSCF forwards UE to before 180 Ringing are responded;

330:UE sends to Calling Side CSCF with the PRACK request;

331: Calling Side CSCF is forwarded to callee side CSCF with the PRACK response;

332: change the PRACK response before callee side CSCF continues;

333: callee side CSCF receives the 200 OKs response of destination to the PRACK request;

334: callee side CSCF is forwarded to Calling Side CSCF with 200 OK response;

335: Calling Side CSCF is forwarded to UE with 200 OK response;

336: when called party answer, callee side CSCF receives the final 200 OKs response of destination to the INVITE request;

337: callee side CSCF forwards Calling Side CSCF to before 200 OK are responded;

338: Calling Side CSCF (should be the P-CSCF functional module of system) ratifies the QoS that submits to;

339: Calling Side CSCF forwards UE to before 200 OK are responded;

340:UE begins the Media Stream of this session, and the ACK request is responded in response to 200 OK;

341: Calling Side CSCF forwards callee side CSCF to before ACK is asked;

342: callee side CSCF is to the ACK that sends called party answer 200 OK response;

Fig. 4 is the realization flow of IMS territory Colorful Ring Service, and concrete steps are as follows:

401:UE sends INVITE and asks CSCF, and wherein SDP comprises the media capability that UE supports;

402:CSCF responds 100 Trying to the INVITE request of receiving;

403:CSCF (should be the S-CSCF functional module of system) carries out the initial filter standard or norm assessment according to user's business datum;

404:CSCF forwards AS to before INVITE is asked;

405:AS responds 100 Trying to the INVITE request of receiving;

406:AS carries out Ring Back Tone service to be triggered, and decides the position of next jumping;

Change the INVITE request before the 407:AS;

408:AS receives 100 Trying Temporary Responses to the INVITE request;

409:AS receives the response of 183 session progress, and wherein SDP comprises the Media Stream ability that destination is supported;

410:AS forwards CSCF to before with 183 session progress;

411:CSCF (should be the P-CSCF functional module of system) authorizes the QoS resource based on the local policy of operator;

Change 183 session progress before the 412:CSCF to UE;

413:UE decides the used Media Stream of this session according to the Media Stream ability received in 183 session progress, and the media stream packets that this is final is contained among the new SDP, sends to CSCF with the PRACK request;

414:UE is initiated as the required resource reservation process of this session according to the Media Stream characteristic that is determined;

415:CSCF forwards AS to before PRACK is asked;

Before continuing, changes 416:AS the PRACK request;

417:AS receives the 200 OKs response of destination to the PRACK request;

418:AS forwards CSCF to before 200 OK are responded;

419:CSCF forwards UE to before 200 OK are responded;

420: the resource reservation process of initiating as UE finishes, and UE sends the UPDATE request and notifies the other side;

421:CSCF forwards AS to before UPDATE is asked;

Before continuing, changes 422:AS the UPDATE request;

423:AS receives the 200 OKs response of destination to the UPDATE request;

424:AS forwards CSCF to before 200 OK are responded;

425:CSCF forwards UE to before 200 OK are responded;

426:AS receives the 180 Ringing response of opposite end;

427: Ring Back Tone service logic control process, decision is to calling subscriber's coloring ring back tone playing;

428:AS initiates the INVITE request to MRFC, and wherein SDP carries the Media Stream that consults;

429:MRFC is to INVITE request response 100 Trying response;

H.248,430:MRFC is by creating coloring ring back tone playing business reserved resource for UE alternately;

431:MRFC replys the INVITE request of AS, and loopback 200 OK response;

432:AS forwards CSCF to before 200 OK are responded;

433:CSCF (should be the P-CSCF functional module of system) ratifies the QoS that submits to;

434:CSCF forwards UE to before 200 OK are responded;

435:UE begins the Media Stream of this session, and the ACK request is responded in response to 200 OK;

436:CSCF forwards AS to before ACK is asked;

437:AS sends ACK and asks MRFC, wherein carries professional according to the QoS negotiation result;

438: when called party answer, AS receives the final 200 OKs response of destination to the INVITE request;

439:AS requires MRF to park CRBT and discharge resource, sends the BYE request to MRFC;

440:MRFC is to BYE request response 200 OK;

441:MRFC stops coloring ring back tone playing, and discharges corresponding resource by H.248 mutual;

442:AS initiates the reINVITE request to CSCF, carries called subscriber's media information;

Change reINVITE before the 443:CSCF and ask UE;

Request sends final response 200 OK to 444:UE to reINVITE;

Change 200 OK before the 445:CSCF to AS;

446:AS responds the ACK request for the 200 OK response of receiving;

447:CSCF forwards UE to before ACK is asked, and UE begins the Media Stream of this session according to the information of Media Stream among the reINVITE;

448:AS sends the ACK request to destination.

Claims

1. A method for restricting services of ring tones in an IMS domain, comprising steps:

(1) User-customized CRBT restricted services;

(2) When the user calls the called user, the CSCF at the calling side judges whether the calling user has customized the CRBT restriction service according to the initial filtering criteria;

(3) If the calling user customizes the CRBT restriction service, the CSCF at the calling side modifies the Invite message so that it carries the CRBT restriction service flag;

(4) The CSCF at the calling side forwards the modified Invite message to the CSCF at the called side;

(5) After receiving the Invite message, the CSCF at the called side analyzes and finds that the calling party has subscribed to the CRBT service, and no matter whether the called user subscribes to the CRBT service, the CRBT service will not be triggered;

(6) The called side executes a normal call flow, and plays a common ringback tone to the calling user.

2. method according to claim 1, is characterized in that also comprising between step (3) and (4):

If the calling user does not customize the CRBT restriction service, the CSCF at the calling side forwards the Invite message sent from the UE side, and performs a normal call process.

3. The method according to claim 1, characterized in that the step (2) comprises: at least one object of the initial filtering criterion.

4. The method according to claim 1, characterized in that the customization in the step (1) includes: SMS customization, Web customization, special service number customization or manual customization.