CN101394443A - Method, system and device for in-band number receiving - Google Patents

The embodiment of the invention discloses an in-band number receiving method, which comprises the following steps: during the subscriber communication process, receiving messages which are sent by an application server, and contain the service access codes of the in-band DTMF service; receiving subscriber in-band dialing information and matching the subscriber in-band dialing information with the service access codes of the in-band DTMF service sent by the application server, if the matching is done, sending the in-band dialing information to the application server. In the embodiment of the invention, a service control network element AS sends numeral and picture information required by the service, an access network element or an access terminal sends numerals and pictures to a media network gateway which is matched with the subscriber in-band dialing information according to the numeral and picture information, therefore, the report is required only when the matching is done, so as to reduce the potential safety hazard.

A kind of with in the method, system and the equipment that collect the digits

Technical field

The present invention relates to communication technical field, relate in particular to a kind of with in the method, system and the equipment that collect the digits.

Background technology

At present a lot of business have all been used DTMF (Dual Tone Multi Frequency, dual-tone multifrequency) detection in the band, and detection mode all is to detect by terminal or access network element, reports AS (Application Server, application server) then and handles.

After terminal or access network element detect user's the interior dialing information of band in the prior art, report AS by turn, can transmit dtmf signal with the INFO method in the Session Initiation Protocol by out-band method.When AS need provide when detecting dtmf signaling in the band professional, generally be configuration decision by access network element or terminal, user's the interior dialing information of all bands is all reported AS by turn by INFO.

In the prior art, in IMS, start tracking on each network element, can easily obtain user's information such as card number password at particular number.Therefore, there is certain potential safety hazard in the existing out-band method mode of the interior dialing information of report of user band by turn of passing through.

Summary of the invention

The embodiment of the invention provide a kind of with in the method, system and the equipment that collect the digits, when network side requires to detect in the band dtmf signal, avoid of the leakage of user's private information in the signaling aspect.

For achieving the above object, the embodiment of the invention provide a kind of with in the method that collects the digits, comprising:

In the user's communication process, receive the message that application server sends, carry the service access code of DTMF business in the band in the described message;

Receive the user and be with interior dialing information, described user is mated with the service access code of DTMF business in the band of interior dialing information and application server transmission,, then dialing information in the described band is sent to described application server if the match is successful.

The embodiment of the invention provide a kind of with in the system that collects the digits, comprising:

Application server is used for the message of carrying the service access code of described application server needs to the media gateway transmission;

Media gateway, be used in the user's communication process, receive the user and be with interior dialing information, described user is mated with the service access code of DTMF business in the band of interior dialing information and application server transmission, if the match is successful, then dialing information in the described band is sent to described application server.

The embodiment of the invention provides a kind of application server, comprising:

Transmitting element, after being used for described inspection unit and confirming that signatory needs detect the business of dialing information in the band, with carry described application server need the message of service access code send to access device;

Receiving element is used to receive dialing information in the band with the service access code coupling of application server needs.

The embodiment of the invention provides a kind of access device, comprising:

Receiving element is used to receive the message that carries the service access code of DTMF business in the band from described application server;

Retransmission unit after being used for described message carried out format conversion, sends to media gateway.

The embodiment of the invention provides a kind of media gateway, comprising:

The access code receiving element is used to receive the message of the service access code that carries described application server needs that described application server sends;

Dialing information receiving element in the band is used in the user's communication process, receives the interior dialing information of band that the user sends;

Matching unit, be used for user that dialing information receiving element in the described band is received with in the service access code of dialing information and the reception of described access code receiving element mate, if the match is successful, then dialing information in the described band is sent to described application server.

Compared with prior art, there is following advantage at least in the embodiment of the invention:

In the embodiment of the invention, severals figure information that the service control network element AS issuing service requires, access network element or access terminal and issue number figure and give media gateway, by media gateway according to dialing information in the band of counting figure information matches user, having only just needs to report after the match is successful, has reduced potential safety hazard.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 be in the embodiment of the invention one a kind of with in the method flow diagram that collects the digits;

Fig. 2 is a conversation service switchover flow chart in the embodiment of the invention two;

Fig. 3 be in the embodiment of the invention a kind of with in the system construction drawing that collects the digits;

Fig. 4 is a kind of application server structure chart in the embodiment of the invention;

Fig. 5 is a kind of access device structure chart in the embodiment of the invention;

Fig. 6 is a kind of media gateway architectures figure in the embodiment of the invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.

The embodiment of the invention one provide a kind of with in the method that collects the digits, as shown in Figure 1, comprising:

Also comprise before the step 101:

The service access code that receives the application server transmission also comprises before:

Application server checks in calling procedure whether the calling subscriber has contracted needs to detect the business of dialing information in the band, if signatory, then to access device send carry this application server need the message of service access code.

Wherein, receive the message that application server sends and comprise: access device receives the message that application server sends, and the service access code of DTMF business in the band that carries in this message is converted to the form that media gateway is supported, is handed down to media gateway.

In the embodiment of the invention one, service control network element AS issuing service corresponding service access code, the access network element or the issuing service access code that accesses terminal are given media gateway, and according to dialing information in the band of service access code match user, having only just needs to report after the match is successful by media gateway.

In the embodiment of the invention two, with the conversation service switchover be example explanation AS with access device (for example access network element or access terminal) between cooperate, flow process collects the digits in realizing being with.For IMS (IP MultimediaSubsystem, IP Multimedia System), accessing terminal is PCSCF (Proxy Call Session ControlFunction, proxy-call session control function) Xia Mian SIP (Session Initiated Protocol, Session initiation Protocol) IAD (Integrated Access Device, integrated access equipment), sip terminal, software terminal etc., access network element is meant MGCF (Media Gateway Control Function, MGCF), AGCF (Access Gateway Control Function, AGCF) etc.

At first, user A (calling subscriber) sets up the conversation with user B (called subscriber), and concrete path is user A 〉-access device A 〉-AS (A) 〉-AS (B) 〉-access device B 〉-user B.The conversation service switchover is in calling subscriber and called subscriber's communication process, the direct button of calling subscriber or called subscriber switches to the 3rd user with calling, professional main application scenarios is that the user will call out in communication process between mobile phone and fixed line, software terminal and switch arbitrarily, in the whole handoff procedure, original conversation does not need to interrupt.

As shown in Figure 2, the access code of supposing the conversation service switchover is * 17, before calling subscriber and called subscriber set up calling, calling subscriber or called subscriber can bind the 3rd user, when needs switch, calling subscriber or called subscriber are switched to " access code * 17+ the 3rd user's number ", detailed process may further comprise the steps, and has wherein omitted the description of callee side:

Step 201, AS (A) judges the signatory conversation of calling subscriber service switchover (called subscriber whether judged by the AS under the called subscriber (B) by signatory conversation service switchover), can be according to calling subscriber's the identification information judgment conversation service switchover of whether having contracted, can also can utilize existing bit not have the combination sign of using by the new logo bit representation is set.

Content in the concrete script is not limit, as long as can carry the severals figure information that comprise service access code, and * 17*x.|*17# for example, several figure information examples are as follows:

Content-Type：application/dtmfinfo+xml

<？xml?version＝＂1.0＂encoding＝＂UT1?F-8＂？>

<dtmf_detect>

＜tt〉0＜/tt〉the T timer

＜lt〉10＜/lt〉long timer

＜st〉5＜/st〉short timer

＜digit〉* 17#|*17*x.#＜/digit〉number figure information

</dtmf_detect>

Step 203, after access device is received the INFO that carries several figure information, according to the media gateway ability, with number figure information translation is the form that media gateway can be supported, be handed down to media gateway, make dialing information in the band of the service access code match user that media gateway can comprise according to number figure information, having only fully, coupling just can report dialing information in the band.

Step 207 after AS receives, sends 200 to gateway.

Step 208, AS carries out Business Processing.For example, switch for conversation, AS can initiate to the calling of user C (number be the user import 888888), connect after the C, discharge A, enter conversation between B and the C, thereby realize the switching between user A and the C.

In addition, AS can send an access code to gateway, and then gateway mates DTMF information in the comfortable band of user according to this access code; If AS sends two above access codes (DTMF business in two kinds of bands being arranged such as the user is signatory) to gateway, then gateway can carry out matching operation to DTMF information in the band of user's input according to these access codes, if with one of them access code coupling, then the match is successful, dialing information in AS reports band, if all it fails to match, then do not report dialing information in the band, gateway is sent to the opposite end with DTMF information according to normal media path.

In the embodiment of the invention two, service control network element AS issues the several figure information that comprise service access code, access network element or terminal issue number figure and give media gateway, according to dialing information in the band of the service access code match user that comprises in the number figure information, having only just needs to report after the match is successful by media gateway.

Wherein, access device can comprise access network element or access terminal.

In the embodiment of the invention, severals figure information that the service control network element AS issuing service requires, access device issues number figure and gives media gateway, according to dialing information in number figure information matches user's the band, has only that the match is successful just needs to report afterwards by media gateway.Promptly only detect the particular number information of AS demand,,, directly be suppressed at the medium aspect, in signaling, do not embody, thereby prevent user's the leakage of private information in IMS such as card number password of user's input etc. for other dialing informations of user.In the medium aspect, dtmf signal can be encrypted transmission in the band, such as 2833 modes, if therefore can accomplish with these private informations be suppressed at the medium aspect just can guarantee in IMS can be end-to-end the solution telephone bank problem of divulging a secret.

Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize based on such understanding by the mode that software adds necessary general hardware platform, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.