CN1761274B - Method for handling call holding - Google Patents
Method for handling call holding Download PDFInfo
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- CN1761274B CN1761274B CN 200410084120 CN200410084120A CN1761274B CN 1761274 B CN1761274 B CN 1761274B CN 200410084120 CN200410084120 CN 200410084120 CN 200410084120 A CN200410084120 A CN 200410084120A CN 1761274 B CN1761274 B CN 1761274B
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- user
- switching system
- held
- service switching
- call
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Abstract
The method includes procedures: main control user starts up call holding; service exchange system of main control user informs call of user's service exchange system to enter call holding state. The invention makes call between main control user and held user stand in call holding state. No information is transmitted between service exchange system of main control user and service exchange system of held user. Thus, transmission resources are saved effectively. Since service exchange system of held user provides hint to the held user, thus, no negotiation and conversion of coding format between service exchange system of main control user and service exchange system of held user is need so as to save transmission resource further.
Description
Technical field
The present invention relates to call out the maintenance technology, be meant a kind of processing method of calling out maintenance especially.
Background technology
In the communication process, a side of conversation often needs and will suspend with the conversation that the other side carries out, and self goes to carry out other conversation or operation then.In this case, network side can keep respective call, provides corresponding prompt to a side who is suspended conversation simultaneously, and prompting mode can be playing back music, voice suggestion etc., be suspended one of conversation with assurance and can know enough that current calling is in held state, but not call interruption.Usually, a side who the maintenance that makes a call, active is suspended conversation is called master control side or main controlling user, and a side who is suspended conversation is called the side of being held or is held the user.
At present, no matter in circuit-switched network still is packet switching network, in calling out the processing procedure that keeps, all be that service switching system by main controlling user provides prompting to being held the user, promptly making a call keeps user's service switching system to provide prompting by the speech channel path of having set up to being held the user.Providing when prompting to being held the user, the service switching system of main controlling user is converted to the coding form that the service switching system that is held the user can be discerned with information, be sent to the service switching system that is held the user then, the service switching system that is held the user is converted to the coded format that the terminal that is held the user can be discerned with the information of receiving, and being sent to the terminal that is held the user, the terminal that is held the user is decoded to the information indicating of receiving and is obtained information.After calling out the maintenance end, the service switching system of main controlling user stops to provide prompting to being held the user, makes main controlling user simultaneously and be held the user to enter normal communication state.The service switching system is meant switching system place when the user makes a call and that calling is handled.
In circuit-switched network, adopt time-division multiplex conversion (TDM usually, Time DivisionMultiplex) transmission means, in communication process, network side is transfer resource special-purpose, fixed-bandwidth for the user distributes, no matter have or not transmission of Information between the user, these transfer resources that are assigned with can be not shared by other users.At present, switching network just progressively progressively turns to packet switching network based on Internet protocol (IP) packet by circuit-switched network, in packet switching network, do not distribute special-purpose transfer resource for the user, and only be when the user's transmission or the information of reception, just can distribute corresponding transfer resource for the user.
Above-described calling keeps processing mode, for the circuit-switched network that with TDM is transmission means is more rational, but development along with packet switching network, service switching system by main controlling user provides prompting to being held the user, have the transmission of information, therefore need take transfer resource, and main controlling user and be held and do not carry out message transmission between the user will cause the waste to transfer resource like this.
In addition, introduced voice encode/decode-free (TrFO)/far-end speech coding (RTO) in the packet switching network, TrFO/RTO is used for the hold consultation business of conversion of coded format, and is purpose to save transfer resource.According to the TrFO/RTO self characteristics, the service switching system that existing call keeps the main controlling user that comprises in the processing procedure is converted to information the step of the coded format that the service switching system that is held the user can discern, can't adapt to the demand of TrFO/RTO self preferably at all, particularly outstanding for RTO.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of processing method of calling out maintenance, in order to effective saving transfer resource.
In order to achieve the above object, the invention provides a kind of processing method of calling out maintenance, the method includes the steps of:
A, main controlling user start calls out maintenance;
The service switching system of B, main controlling user notice is held the user and serves switching system and call out and enter hold mode;
C, be held media gateway in user's the service switching system according to from the soft switch notice, the routing link of calling out is set to resting state;
D, the service switching system that is held the user provides prompting to being held the user;
E, main controlling user terminated call keep;
The service switching system of F, main controlling user notice is held the user and serves switching system and call out and enter communications status;
G, the service switching system that is held the user stop to provide prompting to being held the user.
Further comprise before the described step B: the service switching system of main controlling user is a hold mode with call setting.
Further comprise after the described step D:
A, the service switching system that is held the user return the response that call accepted keeps to the service switching system of main controlling user.
Further comprise after the described step a: the media gateway in the service switching system of main controlling user is according to notifying from soft switch, and the routing link of calling out is set to resting state.
Further comprise before the described step F: the service switching system of main controlling user is a communications status with call setting.
Further comprise after the described step F: be held media gateway in user's the service switching system according to from the soft switch notice, the routing link of calling out is set to state of activation.
Further comprise after the described step G:
B, the service switching system that is held the user return to the service switching system of main controlling user and accept the response that terminated call keeps.
Further comprise after the described step b: the media gateway in the service switching system of main controlling user is according to notifying from soft switch, and the routing link of calling out is set to state of activation.
According to the proposed method, after main controlling user starts the calling maintenance, the service switching system of main controlling user notice is held the user and serves switching system and call out and enter hold mode, the service switching system that is held the user provides prompting to being held the user, thereby make main controlling user and when being held calling between the user and being in hold mode, the service switching system of main controlling user and be held between user's the service switching system and can not transmit any information has been realized the purpose of effective saving transfer resource.
In addition, because among the present invention is to provide prompting by the service switching system that is held the user to being held the user, the coded format that need not the service switching system of main controlling user and be held between user's the service switching system is consulted and conversion, can further save transfer resource.
Description of drawings
Fig. 1 shows to call out among the present invention and keeps process flowchart.
Embodiment
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 accompanying drawing.
Among the present invention, after main controlling user makes a call and keeps, the service switching system of main controlling user is the calling hold mode with the current call setting of main controlling user, state in order to the record respective call, notify the service switching system respective call that is held the user to enter hold mode simultaneously, provide prompting by the service switching system that is held the user to being held the user, prompting mode can be playing back music, voice suggestion etc., to guarantee that being suspended one of conversation can know enough that current calling is in held state.After the main controlling user terminated call keeps, the service switching system respective call of main controlling user is set to communications status, notify the service switching system respective call that is held the user to enter communications status simultaneously, the service switching system that is held the user stops to provide prompting to being held the user, makes main controlling user and be held the user to enter normal communication state.
The service switching system is meant switching system place when the user makes a call and that calling is handled.The above switching system can be the set of soft switch and media gateway (MGW), or is mobile switching centre (MSC), or the like.The service switching system that is held the user can comprise service soft switch/soft switch critical point and the media gateway that is held the user, or service MSC/ Gateway MSC etc.Above-described communications status is the state that communicating pair carries out information interaction, can be the voice communication state, also can be the data communication state, also can be the communications status that voice, data combine, or the like.
Fig. 1 shows to call out among the present invention and keeps process flowchart, as shown in Figure 1, calls out the processing procedure that keeps and may further comprise the steps:
Step 101～step 103: remain on normal communication state between the user, keep normal routing link between the two end subscribers service media gateway separately.The maintenance that makes a call of one end subscriber, at this moment, this user is a main controlling user, the user sends to call out to its service switching system by user terminal and keeps start-up operation indication.Main controlling user service switching system comprises soft switch 1 and media gateway 1, is indicated from the calling maintenance start-up operation of main controlling user by soft switch 1 reception wherein.
Step 104～step 105: after soft switch 1 receives that calling that main controlling user sends keeps the start-up operation indication, with the current call setting of main controlling user for calling out hold mode, in order to the state of record respective call; Notice is held the user and serves the switching system respective call and enter hold mode simultaneously.The service switching system that is held the user comprises soft switch 2 and media gateway 2, is received by wherein soft switch 2 and changes 1 calling from software and enter the hold mode notice.
Step 106～step 108: software change 2 receive call out enter the hold mode notice after, the routing link of notice media gateway 2 respective call is set to dormancy (MUTE) state, the routing link of media gateway 2 respective call is set to resting state, and media gateway 2 provides prompting to being held the user then.After the routing link of media gateway 2 respective call was set to resting state, soft switch 2 was returned response to soft switch 1, and notice soft switch 1 respective call is set to call out hold mode.
Step 109～step 110: after the response that soft switch 2 returns was received in soft switch 1, the routing link of notice media gateway 1 respective call was set to resting state, and the routing link of media gateway 1 respective call is set to resting state.Main controlling user is carried out other operations, as conversing with other users that are held beyond the user, or carries out data interaction with other entities, or the like.
The routing link of the above media gateway respective call is set to the routing link that resting state is meant respective call and is set to the professional state that suspends, promptly this routing link does not transmit any information, promptly the user at these routing link two ends neither receives any information, do not send any information yet, thereby do not take any transfer resource, to reach the purpose of effective saving transfer resource.
Step 111～step 112: the main controlling user terminated call keeps, and this main controlling user sends to call out to soft switch 1 by user terminal and keeps the end operation indication.
Step 113～step 117: after soft switch 1 was received and called out the indication of maintenance end operation, according to the ticket call state, the state of respective call was set to state of activation, notifies soft switch 2 respective call to enter communications status simultaneously.After soft switch 2 received that calling enters the communications status notice, the routing link of notice media gateway 2 respective call was set to state of activation, and the routing link of media gateway 2 respective call is set to state of activation.After the routing link of media gateway 2 respective call was set to state of activation, soft switch 2 was returned response to soft switch 1, and notice soft switch 1 respective call is set to state of activation.
Step 118～step 119: after the response that soft switch 2 returns was received in soft switch 1, the routing link of notice media gateway 1 respective call was set to state of activation, and the routing link of media gateway 1 respective call is set to state of activation.Main controlling user and be held and recover proper communication between the user keeps normal routing link between the service media gateway separately.
The routing link of the above media gateway respective call is set to the routing link that state of activation is meant respective call and is set to state of activation, and promptly this routing link begins to carry out message transmission, makes switching system according to the information transmitted allocation of transmission resources.
The above service switching system is meant the switching system that service is provided for calling, in the calling maintenance process of mobile communication system, even main controlling user moves to different switching systems, because maintained calling is also unclosed calling, therefore, still this maintained calling is handled by former service switching system.Move to different switching systems if be held the user in the calling maintenance process, then can continue to provide prompting, also can take over former service switching system and provide prompting to being held the user by the switching system that is held the current place of user by former service switching system to being held the user.
The form of each message of transmitting in the above processing procedure can be followed variety of protocol, as initial session protocol (SIP) etc.
Though the calling that the present invention proposes keeps processing method to propose at packet switching network, application of the present invention is not limited in packet switching network, can be applicable to circuit-switched network equally.Because the present invention provides prompting by the service switching system that is held the user to being held the user, compared with prior art, the service switching system of main controlling user need not to carry out the coded format conversion of information, the purpose that nature can realize saving transfer resource.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (8)
1. processing method of calling out maintenance is characterized in that the method includes the steps of:
A, main controlling user start calls out maintenance;
The service switching system of B, main controlling user notice is held the user and serves switching system and call out and enter hold mode;
C, be held media gateway in user's the service switching system according to from the soft switch notice, the routing link of calling out is set to resting state;
D, the service switching system that is held the user provides prompting to being held the user;
E, main controlling user terminated call keep;
The service switching system of F, main controlling user notice is held the user and serves switching system and call out and enter communications status;
G, the service switching system that is held the user stop to provide prompting to being held the user.
2. method according to claim 1 is characterized in that, further comprise before the described step B: the service switching system of main controlling user is a hold mode with call setting.
3. method according to claim 1 is characterized in that, further comprises after the described step D:
A, the service switching system that is held the user return the response that call accepted keeps to the service switching system of main controlling user.
4. method according to claim 3 is characterized in that, further comprises after the described step a: the media gateway in the service switching system of main controlling user is according to notifying from soft switch, and the routing link of calling out is set to resting state.
5. method according to claim 1 is characterized in that, further comprise before the described step F: the service switching system of main controlling user is a communications status with call setting.
6. method according to claim 1 is characterized in that, further comprises after the described step F: be held media gateway in user's the service switching system according to from the soft switch notice, the routing link of calling out is set to state of activation.
7. method according to claim 1 is characterized in that, further comprises after the described step G:
B, the service switching system that is held the user return to the service switching system of main controlling user and accept the response that terminated call keeps.
8. method according to claim 7 is characterized in that, further comprises after the described step b: the media gateway in the service switching system of main controlling user is according to notifying from soft switch, and the routing link of calling out is set to state of activation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410084120 CN1761274B (en) | 2004-10-15 | 2004-10-15 | Method for handling call holding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410084120 CN1761274B (en) | 2004-10-15 | 2004-10-15 | Method for handling call holding |
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| Publication Number | Publication Date |
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| CN1761274A CN1761274A (en) | 2006-04-19 |
| CN1761274B true CN1761274B (en) | 2011-06-01 |
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| CN 200410084120 Expired - Fee Related CN1761274B (en) | 2004-10-15 | 2004-10-15 | Method for handling call holding |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968318A (en) * | 2006-09-25 | 2007-05-23 | 华为技术有限公司 | Communication method, system for unified communication service and relevant apparatus |
| CN101330640B (en) * | 2007-06-19 | 2011-06-22 | 中兴通讯股份有限公司 | Method for implementing call retention business of IP multimedia subsystem centralized business |
| CN101453453B (en) * | 2007-12-04 | 2011-08-03 | 华为技术有限公司 | Method and apparatus for implementing call holding |
| CN101815097A (en) * | 2010-04-07 | 2010-08-25 | 中兴通讯股份有限公司 | Method and device for realizing call holding in CTD calling business |
| CN105657198B (en) * | 2016-02-22 | 2019-04-23 | 联想(北京)有限公司 | It obtains other side and does the processing method and processing device operated, terminal for call |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432250A (en) * | 2000-06-02 | 2003-07-23 | 索马网络公司 | Method and system for call holding with call back |
| CN1520677A (en) * | 2001-04-27 | 2004-08-11 | 西门子公司 | Interworking of B-side subscriber features for subscribers in telecom network |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1432250A (en) * | 2000-06-02 | 2003-07-23 | 索马网络公司 | Method and system for call holding with call back |
| CN1520677A (en) * | 2001-04-27 | 2004-08-11 | 西门子公司 | Interworking of B-side subscriber features for subscribers in telecom network |
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| CN1761274A (en) | 2006-04-19 |
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