CN101771760B - Automatic extension dial-back method and system - Google Patents

The present invention provides an automatic dial-back method and system, which relates to a relay IP voice technique. The present invention solves the problem that the opposite part can not dial back when a user gets an outside line with an extension. The technical proposal comprises the following steps: first, the system records information related to outside calls dialled by all extensions and stores the information in calling information records; then, the system retrieves the calling information records according to outside call numbers dialled in, and judges whether the information related to the outside calls exists in the calling information records or not; if the information is not available, enter a normal calling process and end the current dial-back process; otherwise, prompt outside call users to select the extension numbers recorded; whether the outside call users select the extension numbers recorded or not is further judged; if the outside call users select the extension numbers recorded, the system automatically dials and connects the recorded extension numbers selected by the outside call users and ends the current dial-back process; otherwise, enter the normal calling process. The present invention is convenient for users, and suitable for IP voice gates or group telephones.

A kind of method and system of automatic extension dial-back

Technical field

The present invention relates to the ip voice technology of relaying, particularly the technology of the ip voice extension telephone of clawback relaying.

Background technology

Current at use ip voice gateway, group telephone (Private Automatic Branch eXchange; Abbreviation PABX) E1 interface or FXO interface (Foreign Exchange Office; During abbreviation FXO) as relaying; Can distribute extension to give different internal users, but after internal user is dialed outside line key, in callee's caller identification, generally only show general number.With the ip voice gateway is example, and when IP network was dialed the PSTN (Public Switched TelephoneNetwork PSTN) phone, PSTN callee's caller identification can only show general number; Can't show extension; When the callee calls back to missed call or received calls according to caller identification record, generally can hear the prompt tone of exchange like " request extension number, directory enquiry requests 0 "; Yet the callee but can not know correct extension.Same this problem that the exists when callee is the mobile subscriber.Because carrier network does not have well to solve the problem that extension set shows, causes callee user to call back can not achieve the goal because of no extension, the waste social resources.

Summary of the invention

Technical problem to be solved by this invention is user when using above-mentioned extension set to dial outside line, and the problem that is difficult to reply behind callee's missed call or the incoming call answering provides a kind of method and system of automatic extension dial-back.

The present invention solves its technical problem, and the technical scheme of employing is that a kind of method of automatic extension dial-back is characterized in that, may further comprise the steps:

A. system writes down the relevant information of outside line that each extension set is dialed respectively and is stored in the call information record;

B. system is retrieved the call information record according to the outside line number that the outside line user dials in, and judges in the call information record whether the relevant information of this outside line is arranged, and then gets into the c step if having, if then do not get into the f step;

C. the system prompt outside line user extension selecting to be write down is dialed;

D. judge whether the outside line user has selected the extension that is write down, if then get into the f step, if then do not get into the g step;

E. the extension that is write down that system dials automatically and the telephone subscriber that gives connection to external call selects also gets into the g step;

F. get into the normal call flow process;

G. finish this clawback flow process.

Concrete, step a may further comprise the steps:

A1. the user uses extension set to dial the outside line number;

A2. whether system judges that this is dialed and connects, if then get into the a3 step, does not then operate if not;

A3. writing down this dials the relevant information of outside line and is stored in the call information record.

Further, the relevant information of said outside line comprises called outside line number, caller extension and makes a call the time.

Further again, the information record strip number that each extension is dialed outside line in the described call information record can be provided with as required.

The present invention provides a kind of system of automatic extension dial-back, it is characterized in that, comprises call information processing module and IVR (Interactive Voice Response, interactive voice answering is also referred to as automatic-answering back device) automatic-answering back device module,

Said call information processing module is used for stored calls information record;

Said IVR automatic-answering back device module is used to search the call information record and is prompted to the outside line user.

The invention has the beneficial effects as follows; Through above-mentioned steps can be when the outside line telephone subscriber clawback general number correct obtain the branch machine information; And can not waste communication cost one time because finding correct extension number, and make things convenient for the user, promote the efficient that office is handled affairs.

Description of drawings

Fig. 1 is the flow chart of the automatic redialing method of embodiment.

Fig. 2 is the system construction drawing of the automatic ACCB of embodiment.

Fig. 3 is the call information processing module workflow diagram of the automatic ACCB of embodiment.

Fig. 4 is the IVR automatic-answering back device module workflow diagram of the automatic ACCB of embodiment.

Embodiment

The present invention is applied in the ip voice gateway or group telephone of analog junction, digital junction; When solution has the completely restricted extension user to dial outside line (like PSTN or mobile network) phone, the correct problem of clawback in the time will replying this extension subscriber behind callee's missed call or the connecting incoming call.The present invention is through automatic metered call information; In conjunction with the IVR automatic speech prompting, when called outside line user clawback, system searches the record relevant with this calling number automatically; And pointing out many nearest record details, the user can select the recorded information numbering to dial extension number.

Below in conjunction with accompanying drawing and embodiment, describe technical scheme of the present invention in detail.

The invention provides a kind of method of automatic extension dial-back; At first system writes down the relevant information of outside line that each extension set is dialed respectively and is stored in the call information record; Then when outside line is dialled in; System is retrieved the call information record according to the outside line number of dialling in, and judges in the call information record whether the relevant information of this outside line is arranged, if then do not get into the normal call flow process and finish this clawback flow process; If the extension that has then system prompt outside line user selection to be write down is dialed; Judge again whether the outside line user has selected the extension that is write down, if the extension that is write down that then system dials automatically and the telephone subscriber that gives connection to external call selects and finish this clawback flow process then gets into the normal call flow process if not and finishes this clawback flow process.

Embodiment

This example is an example with the ip voice gateway, its method flow diagram such as Fig. 1.

At first system writes down the relevant information of outside line that each extension set is dialed respectively and is stored in the call information record, and the flow process of record is for when the user uses extension set to dial the outside line number, and whether system judges this and dial outside line and connect; If then writing down this dials the relevant information of outside line and is stored in the call information record; If not then do not operate, wherein, the relevant information of outside line comprises outside line number, caller extension and the time that makes a call; Then when outside line is dialled in main frame; System is retrieved the call information record according to the outside line number of dialling in, and judges in the call information record whether the relevant information of this outside line is arranged, if then do not get into the normal call flow process and finish this clawback flow process; If then system utilizes the automatic speech prompting of IVR to point out the outside line user extension that selection is write down to dial; Automatically point out " you have three called records, write down 1 extension set 101, write down 2 extension sets 103; write down 3 extension set 010-104; please select record number, and system will connect corresponding extension set automatically for you " like system, and then judge whether the outside line user has selected the extension that is write down; If the extension that is write down that then system dials automatically and the telephone subscriber that gives connection to external call selects also finishes this clawback flow process, then get into the normal call handling process if not and finish this clawback flow process.

Automatically system construction drawing such as Fig. 2 of ACCB are main with being applied on the ip voice gateway, comprise call information processing module and IVR automatic-answering back device module.The call information processing module of ip voice gateway is mainly used in the call-related information of record extension set when dialing outside line key, its workflow diagram such as Fig. 3; IVR automatic-answering back device module is mainly used in searches the call information record and is prompted to outside line user, its workflow diagram such as Fig. 4.Dial the recorded information quantity of outside line for single extension set; Can regulate automatically or manually be provided with according to the record memory capacity of selecting for use; Consider ageing; The suggestion default setting is 10, covers the oldest record when surpassing 10 automatically, and essential record information is called outside line number, caller extension and makes a call the time.

Through implementing present technique, improved the practicality of clawback to ip voice system extension set, improve practical value greatly.Present technique also can be utilized in traditional key system phone.And when internal network is dialed pstn telephone, can be to PSTN play cuing " xx " extension number and your conversation when connecting.