CN100563219C - Realize the system and method for click to dial - Google Patents
Realize the system and method for click to dial Download PDFInfo
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- CN100563219C CN100563219C CNB2006100758537A CN200610075853A CN100563219C CN 100563219 C CN100563219 C CN 100563219C CN B2006100758537 A CNB2006100758537 A CN B2006100758537A CN 200610075853 A CN200610075853 A CN 200610075853A CN 100563219 C CN100563219 C CN 100563219C
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Abstract
The invention discloses a kind of system and method for click to dial, described system comprises: the calling and called equipment that connects by internet and telephone network, PC terminal, presence server that links to each other successively by the internet and the application server with third party call controlled function.Described method comprises: instant message client the user transfer immediate news to presence server, comprises the calling and called number information in this instant message; Send the calling and called number information to application server by presence server; Set up session between the caller and called users by application server controls.Utilize the present invention, the simple session protocol client computer that can use any one that instant message is presented professional expansion realizes the function of click to dial, the carrying out of convenient for users to use and this business.
Description
Technical field
The present invention relates to computer, network service and telephony field, be specifically related to a kind of system and method for realizing click to dial.
Background technology
3PCC (third party call control) refers to by the third party effector setting up a session in addition between the two, is responsible for session both sides' media negotiation by the effector.3PCC is a kind of control mode very flexibly, and in PSTN (public switch telephone network) net, third party call control is generally used for meeting, wiring business (operator creates a calling that connects other both sides).Equally, use SIP (simple session protocol) agreement also can finish many business by 3PCC, for example playback or the like in click to dial, the communication process, and implement very convenient.A kind of providing/answer-mode has been provided among the RFC3264, has made and to use (offer/answer) pattern that provides/reply of SDP (Session Description Protocol) to carry out session negotiation between two entities.The application of 3PCC is very extensive, for example can be easy to realize business of playing in CTD (click to dial), Early media playback, the communication process verbal announcement or the like conveniently to the control of signaling.
Click To Dial is the application example of most typical 3PCC, is to set up conversation between other two sides by the third party by the internet.When the user browsed web sites, directly the chained address on the webpage clicking used HTTP (HTML (Hypertext Markup Language)) start-up control person that the third party call between customer service representative and the sip user is controlled.The effector just can use the said method between to set up media session then.
In the prior art, click to dial connects the calling and called phone by Web server and realizes usually based on a thin/thick (thin/fat) client computer.As shown in Figure 1:
The terminal use lands the website by dialing, and the link by means of Web (webpage) provides realizes the conversation of user A and user B.
As seen, in order to realize Click To Dial, the user must land provides this professional private server (this server is equivalent to a private client), could set up and being connected of 3PCC.This implementation is not easy to professional carrying out, and simultaneously also for the user has brought the inconvenience of using, and needs the higher system cost.
Summary of the invention
Another object of the present invention provides a kind of system that realizes click to dial, to overcome the shortcoming that must could realize click to dial in the prior art by the 3PCC interface of link specific server, improves the versatility of system, reduces system cost.
The purpose of this invention is to provide a kind of method that realizes click to dial, to overcome the shortcoming that must could realize click to dial in the prior art, on all presence servers or access server, realize the function of click to dial by the convenient ground of client by the 3PCC special purpose interface.
For this reason, the invention provides following technical scheme:
A kind of system that realizes click to dial, comprise: by the calling and called equipment of internet and telephone network connection, described calling and called equipment is computer or is plain old telephone or the mobile phone of receiving telephone number network by gateway device, described system also comprises: PC terminal, presence server that links to each other successively by the internet and the application server with third party call controlled function, wherein
Described PC terminal is used for the calling subscriber and transfers immediate news to described presence server, comprises the calling and called number information in this instant message;
Described presence server is used for sending the calling and called number information of described instant message to application server;
Described application server is used for setting up session between the calling and called equipment according to described calling and called number information.
The embedded instant message client of described PC terminal makes calling subscriber or third party user carry out interacting message by this instant message client and described presence server.
Carry out interacting message by the Session Initiation Protocol interface between described presence server and the described application server.
A kind of method that realizes click to dial, described method comprises step:
A, instant message client user transfer immediate news to presence server, comprise the calling and called number information in this instant message;
B, send described calling and called number information to application server with third party call controlled function by described presence server;
C, set up session between the caller and called users by described application server controls.
Described presence server sends described calling and called number information to described application server by the REFER message of Session Initiation Protocol.
Preferably, described method further comprises:
On described presence server, carry out Click To Dial user registration in advance.
Preferably, described method further comprises:
After described presence server is received described instant message, described instant message client user is carried out authentication according to described user's registration information.
Preferably, described method further comprises:
When described presence server carries out authentication to described instant message client user, this user is carried out cipher authentication.
Preferably, described instant message client user is calling subscriber or third party user.
By above technical scheme provided by the invention as can be seen, the present invention sends SIP (initial session protocol) message of specific format by the terminal use, the calling and called number is sent to presence server, and then send this calling and called number in the application server 3PCC functive, thereby make 3PCC control set up calling and called both sides' session by the sip message of presence server by expansion.The function that the present invention will transmit the calling and called number is transferred to presence server from client and is realized, thereby can use any one SIMPLE (SIP presents professional expansion to instant message) client computer to realize the function of click to dial, the carrying out of convenient for users to use and this business.The present invention realizes simply, and system's highly versatile, cost are low.
Description of drawings
Fig. 1 is the schematic network structure that realizes click to dial in the prior art;
Fig. 2 is the theory diagram of system of the present invention;
Fig. 3 is the flow process that Session Initiation Protocol is realized 3PCC;
Fig. 4 is the message flow that system of the present invention realizes click to dial;
Fig. 5 is the realization flow figure of the inventive method.
Embodiment
Core of the present invention is to make the user to set up and being connected of the application server with third party call controlled function by presence server, send the calling and called number to application server, control caller and called users and carry out session negotiation by the 3PCC on it (third party call control) functional entity then.For this reason, system of the present invention can realize based on the PC terminal of traditional presence server and embedded instant message client.The PC terminal use carries out interacting message by instant message and presence server, and presence server and 3PCC are undertaken by Session Initiation Protocol alternately.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
With reference to Fig. 2, Fig. 2 is the theory diagram of system of the present invention:
Caller equipment S1 is connected by internet and telephone network with called equipment S2, and wherein, caller equipment and called equipment can be computers, also can be plain old telephone or the mobile phone of receiving telephone number network by gateway device.
PC terminal S3, presence server S4 link to each other by the internet successively with the application server S5 with third party call controlled function.PC terminal S3 is undertaken carrying out interacting message by the Session Initiation Protocol interface between presence server S4 and the application server S5 alternately by short message and presence server S4.
The present technique field personnel know, instant message is a kind of technology near real time communication, can allow people greatly increase work efficiency.And the instant message service is used simple.
In order to realize the interacting message between PC terminal and the presence server, an instant message client S31 can be installed on the PC terminal, such as, the MSN Messenger Service client of Microsoft, perhaps Tencent QQ etc.After instant message client is installed, the user can by this client sign in to presence server and with other instant message client communications.
When the PC terminal use need control the connection of setting up between other two other users, S4 transferred immediate news to presence server, and the caller and called users number information is added in this instant message, sent presence server S4 to.After presence server is received this instant message, extract caller and called users number information wherein, REFER (turning to other addresses) message by SIP (initial session protocol) agreement sends the caller and called users number to application server S5 then.Application server S5 controls the session connection of setting up between the caller and called users by its third party call controller.
Such as, the PC terminal use transfers immediate news " Connect 9845012345to 5217152 ", after presence server is received this message, parses calling number and be " 9845012345 " from this message, and called number is " 5217152 ".Then, presence server sends to the calling and called number that parses the 3PCC of application server by sip message.
The present technique field personnel know, SIP is the application layer control protocol that carries out multimedia communication on IP network, can be used for initiating, sets up and discharge session.The flexibly simple characteristic of Session Initiation Protocol with and the function of powerful flexibly calling control attracted increasing manufacturer and operator.Session Initiation Protocol can also be used with SDP (Session Description Protocol) agreement, is used for the medium property of consulting session, therefore is easier to realize third party call control.URL (uniform resource locator) sign of sip user by being similar to the e-mail address, for example: sip:myname@mycompany.com, in this way can be with a different terminal and a communication mode of unified name identification, for using, network service and user provide sufficient flexibility.
Sip message is used for the foundation and the modification of session connection, be divided into request and respond two classes, request message has 6 fundamental types, comprise: INVITE (making a call), ACK (giving a response replying), BYE (remove and connect), CANCLE (cancellation midway), OPTIONS (inquiry the other side's ability), REGISTER (registration), the enactor of Session Initiation Protocol is also defining new type as required.Response message has multiple coding, the concrete response that indication session reciever is made.
Sip message comprises three parts:
Initial row is positioned at beginning most of message, comprises substances such as the type of message and protocol version.
Message header, the attribute of describing message is similar to the syntax and semantics of HTTP (HTML (Hypertext Markup Language)) message header, and form is:, in a message, head can have multirow.
Message body, message body mainly are the descriptions of the session that will set up message.Typical message body is SDP (Session Description Protocol) form, is used for the session that will set up is described, and for example sets up the description that comprises information such as audio frequency, video coding and sampling frequency in the message body of a Multimedia session.The type of message body adopts the defined code of MIME (expansion of many purposes internet mail) to identify, and is application/SDP as the type identification of SDP.Except SDP, message body also can be other various types of texts or binary data.
In order to increase the sip message function, can expand the sip message type, such as, REFER message is used to realize the function of calling transfer.Sip message has comprised a series of message headers, and message is carried out necessary description, and the head of 35 kinds of standards is arranged now.Equally, can increase new head as required supporting new characteristic, can be in conjunction with new type definition new head also can replenish the content in original type.For example, the above-mentioned REFFER kind of message that increases newly that shifts for support call.
In the present invention, can send the calling and called number information to 3PCC by the REFER message that expands.
Such as, the REFER message format that can be set as follows:
REFER?sip:a@example.com?SIP/2.0
Via:SIP/2.0/UDP?example.com；branch＝z9hG4bK2494930422
To:<sip:a@example.com>
From:<sip:a@presense.example.com>；tag＝193432243
Call-ID:1234@example.com
CSeq:1?REFER
Max-Forwards:70
Refer-To:<sip:b@example.com>
Contact:<sip:a@presense.example.com>
According to the mechanism of Session Initiation Protocol, can realize 3PCC by flow process shown in Figure 3:
Offer in this flow chart and answer are SDP (Session Description Protocol) message.
The effector at first sends an INVITE (invitation) who does not have SDP to user A, the phone ringing of A, after A replys, to comprise an offerl in the 200OK response that produces, carry desired port and the IP address of setting up medium type, media formats, host-host protocol and the receiving media stream of session of user A.The effector will be included in from the offerl of A among the INVITE that issues B, produce the answerl that replys to offerl after the B ring is replied.Last effector comprises answer1 as replying in the ACK that user A sends.
This flow process advantage is very simple, does not need the effector to produce SDP, needn't consider the requirement of effector self to medium type.For example B is media server, Conference server an or the like situation.
Fig. 4 shows the message flow that system of the present invention realizes click to dial:
1. present service-user and transfer immediate news, in this instant message, comprise the user A of needs connection and the number information of user B to presenting service server;
2. presence server sends the 200OK response message to presenting service-user;
3. presence server sends REFER message to 3PCC, comprises the user A of needs connection and the number information of user B in this message;
4.3PCC send the 200OK response message to presence server;
5.3PCC send NOTIFY to presence server;
6. after presence server is received NOFITY, send the 200OK response message to 3PCC;
7.3PCC by this calling of CTD (click to dial) mode route of SIP standard, concrete grammar can be with reference to prior figures 3 to flow process shown in Figure 6;
8.3PCC send NOTIFY to presence server, notify this to call out the result;
9. after presence server is received NOFITY, send the 200OK response message to 3PCC;
10. presence server presents this calling result notification in service-user by short message;
Send the 200OK response message 11. present service-user to presence server.
So far, once complete dialing flow process finishes.
With reference to Fig. 5, Fig. 5 is the realization flow of the inventive method, may further comprise the steps:
Step 501: instant message client the user transfer immediate news to presence server, comprises the calling and called number information in this instant message.Both sides can preestablish the form of this instant message, so that can discern.
In order to guarantee benefits of operators, can allow and use this professional user on presence server, to carry out the Click To Dial registration in advance, like this, have only the user after the registration could use this function, and can realize authentication effectively according to user's log-on message to this user, to guarantee the safety of network.If desired the user is carried out authentication, after then presence server is received instant message, according to this user's registration information this instant message client user is carried out authentication, can also require this user to import the encrypted message of oneself, make system carry out password authentification this user.
Step 502: the calling and called number information is sent to application server with third party call controlled function by presence server.
Presence server sends described calling and called number information to described application server by the REFER message of Session Initiation Protocol.
Step 503: set up session between the caller and called users by application server controls.
At this moment, application server just can be set up session between two users by the CTD mode of SIP standard by its 3PCC.
In the process of above-mentioned realization click to dial, the instant message client user can be calling subscriber or third party user.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (9)
1, a kind of system that realizes click to dial, comprise: by the calling and called equipment of internet and telephone network connection, described calling and called equipment is computer or is plain old telephone or the mobile phone of receiving telephone number network by gateway device, it is characterized in that, described system also comprises: PC terminal, presence server that links to each other successively by the internet and the application server with third party call controlled function, wherein
Described PC terminal is used for the calling subscriber and transfers immediate news to described presence server, comprises the calling and called number information in this instant message;
Described presence server is used for sending the calling and called number information of described instant message to application server;
Described application server is used for setting up session between the calling and called equipment according to described calling and called number information.
2, system according to claim 1 is characterized in that, the embedded instant message client of described PC terminal makes calling subscriber or third party user carry out interacting message by this instant message client and described presence server.
3, system according to claim 1 is characterized in that, carries out interacting message by the Session Initiation Protocol interface between described presence server and the described application server.
4, a kind of method that realizes click to dial is characterized in that, described method comprises step:
A, instant message client user transfer immediate news to presence server, comprise the calling and called number information in this instant message;
B, send described calling and called number information to application server with third party call controlled function by described presence server;
C, set up session between the caller and called users by described application server controls.
5, method according to claim 4 is characterized in that, described presence server sends described calling and called number information to described application server by the REFER message of Session Initiation Protocol.
6, method according to claim 4 is characterized in that, described method further comprises:
On described presence server, carry out Click To Dial user registration in advance.
7, method according to claim 6 is characterized in that, described method further comprises:
After described presence server is received described instant message, described instant message client user is carried out authentication according to described user's registration information.
8, method according to claim 7 is characterized in that, described method further comprises:
When described presence server carries out authentication to described instant message client user, this user is carried out cipher authentication.
9, method according to claim 4 is characterized in that, described instant message client user is calling subscriber or third party user.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100758537A CN100563219C (en) | 2006-04-24 | 2006-04-24 | Realize the system and method for click to dial |
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| CNB2006100758537A CN100563219C (en) | 2006-04-24 | 2006-04-24 | Realize the system and method for click to dial |
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| CN1968218A CN1968218A (en) | 2007-05-23 |
| CN100563219C true CN100563219C (en) | 2009-11-25 |
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| CNB2006100758537A Active CN100563219C (en) | 2006-04-24 | 2006-04-24 | Realize the system and method for click to dial |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8320893B2 (en) * | 2007-09-28 | 2012-11-27 | General Motors Llc | Method and system for conference calling with vehicle occupant |
| CN101616158B (en) * | 2009-07-27 | 2014-07-02 | 中兴通讯股份有限公司 | Method and device for media consultation in third-party call control |
| CN102572754B (en) * | 2010-12-20 | 2015-03-11 | 中国移动通信集团公司 | System, method and relational device for achieving click-to-dial service |
| CN102255738A (en) * | 2011-07-21 | 2011-11-23 | 中兴通讯股份有限公司 | Method and system for realizing broadcasting and group calling in click-to-dial (CTD) service |
| TW201406125A (en) * | 2012-07-20 | 2014-02-01 | Nen-Fu Huang | Telephone communication method and system thereof |
| CN106034125A (en) * | 2015-03-17 | 2016-10-19 | 中国移动通信集团公司 | IP voice communication falling back method, apparatus, system and terminal equipment thereof |
| CN113766435B (en) * | 2020-06-05 | 2023-04-07 | 成都鼎桥通信技术有限公司 | Method, device and storage medium for establishing communication group |
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- 2006-04-24 CN CNB2006100758537A patent/CN100563219C/en active Active
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| "SIP协议第三方呼叫控制技术探讨". 时政.数据通信，第2004年第6期. 2004 |
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| CN1968218A (en) | 2007-05-23 |
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