CN101052071B - Online call back method and its device - Google Patents
Online call back method and its device Download PDFInfo
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- CN101052071B CN101052071B CN2007100744647A CN200710074464A CN101052071B CN 101052071 B CN101052071 B CN 101052071B CN 2007100744647 A CN2007100744647 A CN 2007100744647A CN 200710074464 A CN200710074464 A CN 200710074464A CN 101052071 B CN101052071 B CN 101052071B
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Abstract
The method comprises: when the terminal B calls the terminal A, the switch device processes the call to decide if the terminal A is a subscriber of on-line callback service; when the terminal A is a subscriber of on-line callback service and selects a on-line callback service; the terminal B hangs up and sends a release message to the switch device; after receiving the release message, the switch device puts through the call between both sides.
Description
Technical field
The embodiment of the invention relates to communication technical field, particularly relates to a kind of method and apparatus of online callback.
Background technology
In daily life and commercial activity, often have when communicating by party call the other side to convert to by the demand square to party call.For example, the Party A calls out the Party B, but under specific circumstances, the Party B sees when calling party is the Party A, need be converted to square caller and promptly call out the Party B by the Party A.When normally calling is called under this situation, this calling of called interruption and then dialing calling caller again.Making needs interrupt call in this way, returns also often to meet with caller when pulling out and still call out in dialing, therefore very not convenient.If further analyze the behavior of pulling out for this time economic cause behind, should be that the calling party that produces under the present post and telecommunication tariff system wishes that demand that the callee pays is the freephone in the communications field.Along with development of market economy, enterprise has promoted needs to freephone in order further to promote corporate image, reinforcement and trade connection and to guarantee service quality, the personal user also has the needs of freephone, the scene that this emotional affection was called out when for example children that go to school far away from the strange land and father and mother communicated.Therefore operator presses for the demand that a kind of business satisfies freephone.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method and system of online callback.Can realize that the called subscriber makes a call the alignment calling subscriber, thereby can realize freephone.
The embodiment of the invention discloses a kind of method of online callback, comprise step: when user terminal B caller party terminal A, switching equipment is handled this calling, inquires about the online call-back service record of the user applies of preserving in the described switching equipment, judges whether user terminal A is online call-back service user; When user terminal A when being online call-back service user and when selecting to carry out online call-back service, user terminal B on-hook sends release message to switching equipment; After switching equipment is received above-mentioned release message, connect both sides and realize conversation.Wherein, in application record being preserved online call-back service user form, judge by inquiring about described form whether user terminal A is online call-back service user behind the online call-back service of user applies.Wherein, when user terminal A was selected not carry out online call-back service or selected in official hour in official hour, switching equipment was connected both sides and is realized conversation.Wherein, when user terminal A was selected to carry out online call-back service, switching equipment sent information to user terminal B, and reminding subscriber terminal B on-hook is to carry out online call-back service.Wherein, user terminal B is at the appointed time during on-hook, terminated call.
The embodiment of the invention also discloses a kind of communication exchange equipment, be used to call out control and protocol processes, comprise control unit, judging unit and memory cell.Wherein memory cell is used to preserve the online call-back service record of user applies.Judging unit comprises first module, second module and three module, and wherein first module is used for judging from the described record of memory cell inquiry whether the user is online callback line service user.When the user was online call-back service user, second module was used for judging according to the button that user terminal A is selected whether user terminal A selects to carry out online call-back service.Three module is used for judging whether on-hook of user terminal B according to the release information that whether receives the transmission after the user terminal B on-hook.Control unit is used for carrying out call treatment according to the judged result of each module of judging unit.When first module judges that the user is not online callback user, judging unit first module notice control unit connecting subscribers participating terminal A and user terminal B promptly handle by ordinary call, when first module judges that the user is online call-back service application user, can send message to control module, the notice control module makes a call at user terminal B on-hook rear line terminal B, perhaps sends message initiated second module to second module and handles; Receive the message of first module when second module after, judge by the selection information that receives user terminal A whether the user carries out online call-back service, when the user selects to carry out online callback, second module can notify Media Resource Server to play voice or multimedia messages to the user by control unit, and the prompting user carries out the selection of online callback process such as on-hook etc.; After receiving the release message that sends after the user terminal B on-hook, three module notice control unit makes a call to user terminal B, and connects both sides and realize conversation behind user terminal B off-hook.Preferably, also comprise timer, be used for online call-back service flow process is carried out timing; Described second module judges according to the temporal information of timer whether the user selects reception to estimate the line call-back service, and when selecting, second module is connected both sides by control unit and realized conversation in official hour in official hour.Described equipment is physical entity independently, perhaps is integrated in PSTN switch or the Softswitch.
The disclosed online call-back service scheme of the present invention and embodiment realizes simple, by calling subscriber and called subscriber are changed in the call flow process, is about to the calling of the Call Transfer of caller initiation for called party's initiation; The present invention and embodiment can utilize existing communication system and rate computing system to realize freephone, and need not to apply for special telephone number.The embodiment of the invention is by selecting whether to carry out telephone expenses and the inconvenience that online call-back service operation can avoid malicious call to bring simultaneously; The technical scheme of the last embodiment of the invention need not be changed on a large scale to communication system, and enforcement is simple and cost is very low.
Description of drawings
The method flow diagram of the online call-back service that Fig. 1 provides for embodiment of the embodiment of the invention;
Fig. 2; Signaling process figure for online callback among embodiment of the embodiment of the invention;
Fig. 3 is the system diagram that online call-back service is provided among embodiment of the embodiment of the invention;
Fig. 4 is an online callback process structure drawing of device among this embodiment.
Embodiment
For thought and the performing step that more is expressly understood the embodiment of the invention, the embodiment of the invention is set forth below in conjunction with the accompanying drawing embodiment that develops simultaneously.
Be illustrated in figure 1 as the entire flow figure of the embodiment that the embodiment of the invention provides.Be explained as follows in detail:
1, user terminal B caller party terminal A, promptly user terminal B is caller, user terminal A is called; Behind user terminal B connecting subscribers participating terminal A, switching equipment is handled this calling behind the user terminal A off-hook, and the switching equipment that this place refers to is traditional telephone exchanger, also can adopt carrying and the SoftSwitch of controlling separation architecture;
2, by searching, judge whether user terminal A applies for online call-back service by switching equipment or by the online call-back service form that other communication equipment is preserved.If the unregistered online call-back service of user terminal A does not then trigger online call-back service but handles according to ordinary call, the calling of directly connecting A and B realizes the conversation of A and B, and cost of the phone call is still paid by the calling party; The user terminal A application that if the called subscriber is this place to be referred to online call-back service, then enter online call-back service handling process.In a preferred embodiment of the embodiment of the invention, used the online call-back service information of the above-mentioned registration of table storage of following form.
Online call-back service table:
| Sequence number | Telephone number | Online callback sign |
| 1 | 6540808 | Y |
| 2 | 6540807 | Y |
Above table mainly comprises sequence number, telephone number and the sign of whether registering online callback, also can expand to preserve other relevant information.When handling, switching equipment can judge whether the user applies for online call-back service according to the pairing online callback sign of telephone number.If user applies online call-back service, then in above-mentioned online call-back service table, increase a record, and set the value of " online callback sign "; When the user supspends online call-back service, then can keep user record, and the value of online time sign is made amendment; When the user cancels online call-back service, then from this traffic table, delete this record.In an embodiment of the embodiment of the invention, apply for and when using online call-back service, online callback sign value is " Y "; When supspending online call-back service, online callback sign value is " N ".Described online call-back service table can be kept in the switching equipment, also can preserve in other communication equipment.
If 3 A have registered online call-back service, when the state of user terminal B on-hook, switching equipment can be directly makes a call and connects both sides to user terminal B, thereby realizes online call-back service; Carrying out line call-back service more again after also can waiting user terminal A to carry out online call-back service, is whether the called subscriber of this calling selects online call-back service by judging called user terminal A.The user selects the online call-back service can be by selecting by " * " number key, perhaps also can select by other similar mode, in an embodiment of the embodiment of the invention, Media Resource Server can be selected with the guiding user to user's playing alert tones according to the instruction of switching equipment, as in an embodiment of the embodiment of the invention, select by playing " selecting online call-back service " prompt tone prompting user by the * key.Switching equipment also can be provided with timer in addition, and can preestablish the response time that the user selects online call-back service.When the prompting user selects online call-back service, start timer, wait for that in predetermined response time the user selects above-mentioned online call-back service.In an embodiment of the embodiment of the invention,, the response time of the online call-back service of selection of afore mentioned rules is decided to be 5 seconds according to people's custom and call statistics rule.In an embodiment of the embodiment of the invention, system is to user's play cuing message, the prompting user selects in official hour, can also play the time of reading the clock to the user when waiting for that the user selects, with maximum raising user's business experience.
If 4 users are non-selected above-mentioned online call-back service in official hour or under other condition, then handle promptly the directly calling of connection A and B and do not trigger online call-back service according to ordinary call; When the user has selected online call-back service in official hour or under other condition, switching equipment sends instructions under Media Resource Server, the notice Media Resource Server plays the multimedia messages of voice suggestion or other type for user terminal B, and reminding subscriber terminal B on-hook is to carry out the processing of online callback; Also play other type multimedia messagess such as voice can also for simultaneously user terminal A; In an embodiment of the embodiment of the invention, the information that plays to user terminal B is voice suggestion: " dedicate sincerely, please on-hook wait! "; The information of playing to user terminal A is music.
5, switching equipment can start timer when wait user terminal B is calling party's on-hook of this calling, and can preestablish the response time of user terminal B on-hook.If user terminal B on-hook in the time of predesignating just sends a release message to switching equipment, notice switching equipment calling subscriber on-hook; If user terminal B does not have on-hook in official hour, terminated call then, and play busy tone for simultaneously user terminal A and user terminal B; Or connecting subscribers participating terminal A and user terminal B realization conversation.In a preferred embodiment of the embodiment of the invention, the time that will preestablish calling subscriber's on-hook according to statistical law is for providing the telecommunication service of hommization more in 5 seconds with raising.Can also set the whether on-hook of condition judgment user terminal B of other type except the setting-up time condition.
6, send a release message to switching equipment when user terminal B on-hook, switching equipment is handled by the ordinary call flow process after receiving above-mentioned release message, the calling between connecting subscribers participating terminal A and the user terminal B, and A and B both sides converse.Because this moment, user terminal A was converted to caller by the called of beginning, did not need to handle especially the pattern that can realize " freephone " when calculating telephone expenses, promptly realized online call-back service.
Now introduce the application of the embodiment of the invention in a call flow in conjunction with Fig. 2.Detailed step is as follows:
1, the PSTN/ISDN network terminal makes a call, and sends address initial message IAM by SGW SG to Softswitch;
2, after IAM message is received in soft switch, use ADD_REQ command request Trunk Media Gateway TMG physical terminal and certain RTP (terminal of (Real-Time Protocol) agreement join one new related in.TMG returns the ADD_REPLY response, distributes new connection descriptor;
3, after the called number analysis is carried out in soft switch, determine that called subscriber UserB links to each other with the physical terminal of access media gateway AMG.Therefore, soft switch use ADD_REQ request AMG physical terminal and certain terminal based on RTP (Real-Time Protocol) agreement join one new related in.AMG returns the ADD_REPLY response, distributes new connection descriptor;
4, soft switch sends MOD_REQ and orders to AMG, revises the attribute of terminal, request AMG sense terminals event (as off-hook etc.), and put ring back tone to UserB.AMG returns the MOD_REPLY response and confirms, puts ring back tone to UserB simultaneously;
5, soft switch transmission MOD_REQ orders to TMG, and request TMG puts ring-back tone for PSTN user.TMG returns the MOD_REPLY response and confirms;
6, soft switch sends ACM message to SG, and SGW SG receives this message, and this message is forwarded to the PSTN switch by M2UA, asks this switch to send ring-back tone for PSTN user;
7, UserB off-hook.AMG sends NTFY_REQ order notice MGC.Soft switch is returned the NTFY_REPLY response confirmation and has been received this notification command;
8, called user terminal B selects business by pressing the * key, and soft switch simultaneously starts timer control called subscriber and whether selects online call-back service at the appointed time;
9, soft switch receives after user that AMG transmits selects the instruction of online callback, and soft switch is handled and started online call-back service, and gives caller and called playing back music simultaneously;
10, when REL message was promptly sent in calling subscriber's on-hook, soft switch was handled, to realize online call-back service.
The realization of the embodiment of the invention need not whole communications network system is transformed, and only needs that original communication equipment is carried out the function expansion and just can realize online call-back service.The embodiment of the invention can realize on traditional switching equipment such as PSTN switch, also can control the soft switching communication system that separates based on carrying.Be illustrated in figure 3 as a preferred embodiment of the present invention and be under the soft-exchange construction system diagram of the embodiment of the invention in the communication system under the framework, the function and the annexation thereof of each net unit of system are described in detail as follows:
Terminal:, comprise IP terminal and traditional communication terminal with various types of user terminals of flexible exchanging network support.As the sip terminals such as computer of SIP phone terminal or using SIP protocol communication, telephone terminal or use H.323 terminal such as computer that agreement H.323 communicates H.323, H.248 or the terminal that communicates of MGCP agreement can comprise that also application, also may be traditional communication network termination such as analog telephone or portable terminal.
IAD provides the intercommunication between flexible exchanging network and the Access Network, promptly is responsible for various types of communication users are linked in the flexible exchanging network, for example: analog subscriber inserts, the isdn user inserts, V5 user inserts, xDSL inserts etc.IAD also can be used for carrying out adaptive to user state information and line information in the communication.
Nucleus equipment in the Softswitch flexible exchanging network is mainly finished functions such as session/call control, media gateway access control, Call Admission Control, protocol processes, call signaling route, authentication (authentication), billing data acquisition in communication; Also but the application interface opened to application layer of device side provides communication services such as basic speech business, mobile service, multimedia service to the user.
Media Resource Server is a kind of independently ip intelligent peripherals, even not can be implemented in the line call-back service though do not play voice suggestion in the embodiment of the invention yet, but, satisfy the good experience that is used for online call-back service in order further to improve the service quality of online call-back service.Play voice or other multimedia messages by increasing Media Resource Server to the user, the prompting user selects or playing back music is eliminated in the Call Waiting process uninteresting.
Media gateway is used for the input/output end port interconnection, is responsible for the format conversion of different medium.Softswitch and other network are interconnected, for example in one embodiment of the invention, connect PSTN/ISDN network and IP network.Media gateway is mainly finished the format conversion between PCM signal flow and the IP Media Stream between Circuit Switching Network and IP Packet Based Network.Media gateway can be divided into types such as Trunk Media Gateway TMG and access media gateway AMG.The dictyosome gateway also can built-in SGW, is used for transmitting in IP network the signalling system No.7 of traditional communication net, realizes the intercommunication of IP network and No.7 nation-wide Network.
Be illustrated in figure 4 as a switching equipment of handling online call-back service in one embodiment of the invention.Described equipment comprises memory cell, judging unit, control unit and timer.Wherein memory cell is used to preserve the information of the business of the online callback of user applies.Judging unit comprises first module, second module and three module, wherein first module is used for judging according to the information that memory cell is preserved whether user terminal A has applied for online call-back service, when the user terminal A application can notify control module to make a call when the user is online call-back service user during online call-back service to user terminal B, perhaps when user terminal A when not being online call-back service user the notice control unit handle by the ordinary call flow process; Perhaps also can notify second module to handle, second module is used for after the notice that receives first module, judge by the button key information that receives user terminal A whether family A has selected online call-back service, in one embodiment of the invention, user terminal A is by selecting by " * ".Can also notify the media resource plays device to play voice or multimedia messages to the user when the user selects to carry out online call-back service, the notice control unit is handled by the ordinary call flow process when the non-selected online call-back service of user terminal A.It is that release information that the user terminal B of the embodiment of the invention sends is judged whether on-hook of user terminal B that three module is used for by the calling subscriber who receives former calling, and the notice control unit makes a call to user terminal B after receiving release message; As user terminal B in official hour or under other condition not during on-hook, notice control unit terminated call.The all right built-in timer of Softswitch is used to control the called subscriber and selects the time of online call-back service or calling subscriber's on-hook sends time from release message to switching equipment.If selection is carried out described online call-back service then is notified control unit to handle by the ordinary call flow process in official hour; Perhaps when in the time that is setting in advance during user terminal B on-hook, control unit makes a call to user terminal B, and connects both sides when user terminal B off-hook is replied; When the user does not have on-hook in official hour, but the control unit terminated call, and can play busy tone to both sides simultaneously, control unit also can be connected both sides, and handles by the ordinary call flow process.Above-mentioned online callback process equipment can be built in Softswitch or traditional PSTN switch and or other similar switch in, also can independently exist, interconnected by interface unit and existing various types of communication network.
More than the method for a kind of online callback that the embodiment of the invention provided is described in detail, used specific embodiment herein the principle and the execution mode of the embodiment of the invention are set forth, the explanation of above embodiment just is used to help to understand the method and the core concept thereof of the embodiment of the invention; Simultaneously, one of ordinary skill in the art is according to the thought of the embodiment of the invention, in specific embodiments and applications or will change to some extent.These changes should be understood to implement the present invention.
Claims (12)
1. the method for an online callback is characterized in that, comprises step:
Switching equipment receives user terminal B when the calling of the initiation of user terminal A, handles this calling, and inquires about the online call-back service record of the user applies of preserving in the described switching equipment, judges whether user terminal A is online call-back service user; If user terminal A is online call-back service user, and after switching equipment received the release message that sends after the user terminal B on-hook, switching equipment made a call to user terminal B.
2. method according to claim 1 is characterized in that, comprises step:
Switching equipment is connecting subscribers participating terminal A and user terminal B behind user terminal B off-hook.
3. method according to claim 1 is characterized in that, comprises step:
Behind the online call-back service of user applies, preserve user's application record; By inquiring about described application record, switching equipment judges whether user terminal A is online call-back service user.
4. according to claim 1,2 or 3 described methods, it is characterized in that, comprise step:
Judging user terminal A when switching equipment is online call-back service user, and after user terminal A selected described online call-back service and user terminal B on-hook, switching equipment made a call to user terminal B; Switching equipment connecting subscribers participating terminal A and user terminal B behind user terminal B off-hook.
5. method according to claim 1 is characterized in that, comprises step:
Preestablish user terminal A and select to carry out the response time of online call-back service;
When user terminal A was selected not carry out online call-back service or selected in the response time of described equipment in advance in the response time of described equipment in advance, switching equipment connecting subscribers participating A and user B realized conversation.
6. method according to claim 1 is characterized in that, comprises step:
When user terminal A was selected to carry out online call-back service, switching equipment sent information to user terminal B, and reminding subscriber terminal B on-hook is to carry out online call-back service.
7. according to claim 1 or 6 described methods, it is characterized in that, comprise step:
Preestablish the response time of user terminal B on-hook;
If user terminal B is described when preestablishing in the time not on-hook, switching equipment terminated call or connecting subscribers participating terminal A and user terminal B.
8. a communication exchange equipment is used to call out control and protocol processes, it is characterized in that, comprises control unit, judging unit and memory cell;
Wherein memory cell is used to preserve the online call-back service record of user applies;
Judging unit comprises first module and three module, and first module is used for judging whether the user is online call-back service user, and judged result being notified to control unit from the described record of memory cell inquiry;
Three module is used to receive the release message that sends after the user terminal B on-hook, and the notice control unit makes a call to user terminal B behind the release message that receives user terminal B transmission;
Control unit is used for judging that in described first module user terminal A is online call-back service user and makes a call receiving the notice rear line terminal B that three module sends.
9. equipment according to claim 8, it is characterized in that, described judging unit also comprises second module, and described second module is used for judging according to the press key message of user terminal A whether user terminal A selects to carry out online call-back service, and judged result is notified to control unit handles.
10. equipment according to claim 8 is characterized in that described equipment also comprises timer, and described timer is used for supervisory user terminal A and selects the time of the online call-back service of execution or the time of user terminal B on-hook whether to exceed the time that sets in advance; And give control unit with result notification.
11. equipment according to claim 8, it is characterized in that, described judging unit also comprises second module, control unit receives after the user selects to carry out the message of online call-back service in second module, be used for sending message, notify described Media Resource Server to play voice or multimedia messages to user terminal B to Media Resource Server.
12. to 11 each described equipment, it is characterized in that according to Claim 8 described equipment is physical entity independently, perhaps is integrated in PSTN switch or the Softswitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100744647A CN101052071B (en) | 2007-05-12 | 2007-05-12 | Online call back method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100744647A CN101052071B (en) | 2007-05-12 | 2007-05-12 | Online call back method and its device |
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| Publication Number | Publication Date |
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| CN101052071A CN101052071A (en) | 2007-10-10 |
| CN101052071B true CN101052071B (en) | 2010-07-28 |
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| CN2007100744647A Expired - Fee Related CN101052071B (en) | 2007-05-12 | 2007-05-12 | Online call back method and its device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104967752B (en) * | 2014-04-16 | 2018-11-16 | 腾讯科技（深圳）有限公司 | Call the method, apparatus and system of clawback |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852359A (en) * | 2005-07-04 | 2006-10-25 | 华为技术有限公司 | Back calling method and device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852359A (en) * | 2005-07-04 | 2006-10-25 | 华为技术有限公司 | Back calling method and device |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-20679A 2005.01.20 |
| JP特表2002-507103A 2002.03.05 |
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