WO2011150694A1 - Recording control method and system based on session initiation protocol, and media server - Google Patents

Abstract

The present invention discloses a recording control method and system based on the Session Initiation Protocol (SIP) and a Media Server (MS), and belongs to the communication field. Wherein, the method includes: the MS initiates recording, and receives key-press instructions from users (S102); the MS determines the control corresponding to the key-press instruction according to the control key-press information received from an Application Server (AS) in advance (S104), and the MS performs the control corresponding to the key-press instruction for the recording (S106). The present invention solves the problem that the function for recording services is single in relevant technologies, improves recording operability and enhances user experience.

Description

The present invention relates to the field of communications, and in particular to a SIP (Session Initiation Protocol) based recording control method, system and media server. BACKGROUND OF THE INVENTION In a traditional IMS (IP Multimedia Subsystem, IP Multimedia Subsystem) or NGN (Next Generation Network) SIP-based control signaling recording service, only basic recording functions are implemented, due to AS ( Application Server, Application Server) Control signaling and MS (Media Server, Media Server) limitations, can not achieve basic control of recording streaming media, such as simple pause, resume, restart, etc., resulting in The recording service has a single function, and the operability and user experience are not strong. SUMMARY OF THE INVENTION A primary object of the present invention is to provide a SIP-based recording control method, system, and media server to solve at least one of the above problems. According to an aspect of the present invention, a SIP-based recording control method is provided, including: a media server MS starts recording, and receives a user's key indication; and the MS determines a key indication according to control button information received in advance from the application server AS. Corresponding control, the control button information includes at least one of the following: the first operation corresponding to the control is to pause the recording; the second operation corresponding to the control is to continue recording; the third operation corresponding to the control is to restart recording; MS to the recording execution button Indicate the corresponding control. Preferably, the control performed by the MS to perform a button indication on the recording comprises: when the button indicates that the first operation is performed, the MS pauses recording; when the button indicates that the second operation is performed, the MS continues to record; when the button indicates the third operation, before the MS is deleted Record the file and start recording again. Preferably, when the button indicates that the recording operation is ended, the MS ends the recording message to the AS, and the AS ends the recording. Preferably, the AS carries key control information to the MS through initial recording control signaling. Preferably, the first operation is to press the first button; the second operation is to press the second button; and the third operation is to press the third button. Preferably, the first operation is to press the first button; the second operation is to press the first button twice in a specified time; the third operation is to press the third button. According to another aspect of the present invention, a media server is provided, comprising: a recording activation module configured to initiate recording and receive a user's button indication; and a control determination module configured to receive control button information received from an application server AS in advance Determining the corresponding control of the button indication, the control button information includes at least one of the following: the control corresponding to the first operation is to pause the recording; the control corresponding to the second operation is to continue recording; the control corresponding to the third operation is to restart recording; The module is set to perform the corresponding control of the button indication for the recording. Preferably, the control execution module comprises: a recording pause unit, configured to pause the recording when the button indicates the first operation; and the recording continuation unit, when the button is set to indicate the second operation, continue recording; the re-recording unit is set as a button When the third operation is indicated, delete the previous recording file and restart recording. Preferably, the media server further includes: ending the recording and reporting module, and setting the button to end the recording operation, reporting the ending recording message to the AS, so that the AS ends the recording. According to still another aspect of the present invention, a recording control system based on a Session Initiation Protocol (SIP) is provided, comprising: an application server, configured to send recording control button information to a media server; and the media server described above. Through the invention, after the MS receives the user's button indication, the recording control is directly controlled according to the corresponding control operation of the button indication, which solves the problem that the recording service function in the related art is single, and improves the operability of the recording and Enhanced user experience. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flow chart of a SIP-based recording control method according to Embodiment 1 of the present invention; FIG. 2 is a flow chart of a SIP-based recording control method according to Embodiment 2 of the present invention; 3 is a block diagram showing the structure of a media server according to Embodiment 3 of the present invention; and FIG. 4 is a block diagram showing the structure of a SIP-based recording control system according to Embodiment 4 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The SIP signaling-based communication system includes an MS, an AS, and a terminal, where the terminal in the embodiment of the present invention may be a mobile phone, a fixed telephone, or another softswitch device; the connection between the MS, the AS, and the terminal is a wired or wireless connection, and the connection is Follow relevant communication standards. The following embodiments of the present invention will be described by taking the communication system as an example. Embodiment 1 FIG. 1 is a flowchart of a SIP-based recording control method according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps: Step S102, the MS starts recording, and receives a button indication of a user; Step S 104. The MS determines, according to the control button information received in advance from the AS, the control corresponding to the button indication, where the control button information includes at least one of the following: the control corresponding to the first operation is to pause recording; the control corresponding to the second operation is to continue Recording; The control corresponding to the third operation is to restart recording; wherein, the AS carries the button control information to the MS through the initial recording control signaling. In the initial recording control signaling sent by the AS in this embodiment, the recording request and the receiving number control signaling are combined, and the receiving function of the MS is used to implement the support of the recording button control, and the request signal of the recording between the AS and the MS is performed. In addition to carrying the recording file path related to the recording, the file format, the maximum and minimum recording time, and other related control information, the AS edits the recording stream control button information provided by the service into a fixed format receiving request information and sends the information. To the MS, after the MS receives the recording request of the AS with streaming control signaling, the MS extracts the recording stream media button control information and stores it. Step S106, the MS performs the corresponding control of the button indication on the recording; For example, when the button indicates the first operation, the MS pauses the recording; when the button indicates the second operation, the MS continues the recording; when the button indicates the third operation, the MS deletes the previous recording file and restarts the recording. In the above three operations, the first operation is to press the first button, for example, press "Γ, key on the mobile phone; the second operation is to press the second button, for example, press the "2" button on the mobile phone; the third operation is according to the first Three buttons, for example, press the "3" button on the phone; or, the first operation is to press the first button, for example, press the "1" button on the phone; the second operation is within a specified time after receiving the first operation The second operation is received for the second time, that is, the first button is pressed twice within a specified time, for example, pressing "Γ, key" within 20 minutes after the first "1" button is pressed; the third operation is pressing The third button, for example, press the "2" button on the phone. In order to maintain the processing flow in the related art, the end operation of the recording is still completed by the AS, and the performance is as follows: The button indication received by the MS is not the above three operations, but ends the recording operation (for example, when pressing the "#" key on the mobile phone) The MS reports the end recording message to the AS, and the recording ends by the AS. The MS and the AS in the related art can perform the recording function only through the signaling interaction, and the control function for the recording cannot be realized. In this embodiment, the receiving function of the MS (ie, receiving the button indication from the terminal) is used to implement the recording control. The recording control is completed by the MS, which weakens the control function on the AS. In this embodiment, it is considered that the recording stream media control does not require the thousands of pre-processes of the business process. Therefore, after the MS receives the button indication of the user, the MS directly controls the recording according to the corresponding control operation of the button indication, and solves the related art. The single function of the recording business function improves the operability of the recording, enhances the practicability of the system, and the user's body-risk. At the same time, the MS in this embodiment does not report the operation of suspending, continuing, and restarting the recording, and further enhances the timeliness and reliability of the recording stream media control. Embodiment 2 FIG. 2 is a flowchart of a SIP signaling-based recording control method according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps: Step S201: A user terminal passes an SS (Software Switch, Softswitch) Initiating a SIP call request INVITE to the AS, and carrying the media information SDP 1 of the user side; Step S202, the AS returns a temporary response 100 Trying to the SS; Step S203: After triggering the recording service, the AS initiates a call request INVITE to the MS, and carries the media information SDP1 of the user. Step S204, the MS returns a temporary response 100 Trying to the AS. Step S205, the MS receives the INVITE request, and returns 200 OK to the AS. Answering, carrying its own media information SDP2; step S206, the AS sends a response message ACK after the 200 OK response to the MS; step S207, the AS returns to the SS 200 OK to receive the INVITE request, and transparently transmits the media information SDP2 from the MS; Step S208, the SS sends a response message ACK after the 200 OK to the AS; Step S209, after the SIP session is established, the service initiates, and the AS sends a recording request to the MS.

The INFO message, in which the streaming media button control information is carried; the XML code stream shown below, is an XML stream of the recording request of a simple recording stream media control function provided by the embodiment.

1 <?xml version=" 1.0" encoding="UTF-8"?> 2 <msml version:" 1.1">

3 <dialog start target="conn: ..." type="application/moml+xml">

4 <group topology="parallel">

5 <record dest="file://mnt/51/40/0 l/69.wav"

Format="audio/vnd.wave;codec=83 " maxtime=" 100s"

 Cvd:termkey="#">

6 <recordexit>

7 <send target="source" event="app.record_0_64"

Namelist= "record. end record. len record. termkey"/>

8 <exit/> 9 </recordexit> 10 </record>

11 <dtmf iterate="forever">

12 <pattern digits=" l">

13 <send target: "record" event="toggle-state"/>

14 </pattern>

15 <pattern digits="2">

16 <send target= "record" event="restart"/>

17 </pattern>

18 </dtmf

19 </group>

20 </dialogstart>

21 </msml> where 1-21 is the tag <record> (line 5-10) is the basic information of the recording request, including the recording file path, recording file format, minimum and maximum recording duration, end button (for example, #号) Wait. The difference between this code stream and the normal recording request is as follows: In the < ₈ 0叩> tag, a sub-tag < ₍ 11 ₁₁ 1 (11-18 lines) added to the number-receiving function is added to the side-by-side column, which is in the <dtmf tag. key is stored in the control information to achieve the control of streaming media, the <(^ _(1> tag and <dtmf tags simultaneously to _<80 rapping> tab, indicating that the function is dtmf number receiving record recording function and services. in The <dtmf subtag <pattern> defines the control button information related to the recording, where the button "1" indicates pause and resume (press once to indicate pause, press again on the basis of pause to continue, thus conforming to the previous general recording) Control button operation habits), button "2" means restart, that is, MS will delete the previous recording file, start recording again, according to control signaling, when the MS receives the button "1" or "2" user terminal button The MS will not report to the AS, and directly operate the streaming media file to realize the recording stream media control function. When the user sends the "#" key, the signal of the end of the recording is triggered, and the MS will put this "#" To AS, while the end of this recording. In step S210, the MS accepts the recording request of the AS, and returns a 200 OK response of the INFO message. Thereafter, the user terminal officially starts recording, and by controlling the preset streaming media control button, for example, the MS receives a button indication from the terminal, when the button indicates the first operation, the MS pauses the recording; In the second operation, the MS continues the recording; when the button indicates the third operation, the MS deletes the previous recording file and restarts the recording. Through the above operation, the user can realize the control functions such as pause, resume, restart, etc. during the recording process, or directly end the recording by pressing the button. Step S211, when the recording duration ends, or when the MS receives the button information indicating the end of the recording except the video playback control button, the MS reports the message to the AS through the INFO message; in step S212, the AS returns a 200 OK response of the INFO message to the MS. Step S213, the MS completes the function of the recording service, and notifies the AS (through the INFO message;) the dialog exit message exiting the media session; Step S214, the AS returns a 200 OK response of the INFO message to the MS; After the other service function process, the AS can continue to send other related request messages to the MS through the AS. Step S215: After the entire service process is completed, the AS sends a BYE message to the MS to end the media session. Step S216, the MS returns the BYE to the AS. The 200 OK response of the message, the MS ends the media session; Step S217, after completing the call task, the AS sends a BYE message to the user terminal through the SS, and ends the current call flow; Step S218, the user terminal returns the BYE to the AS through the SS. The 200 OK response of the message, the call ends. In this embodiment, the control signaling of the SIP recording service is expanded, and the receiving function in the IVR (Interactive Voice Response System) service is combined with the recording service, so that the recording stream can be paused, continued, and the like by pressing a button on the terminal. The media control function simplifies the number of control signaling interactions between the AS and the MS, enhances the practicability and reliability of the streaming media control, and improves the user experience of the service. Example 3 The present embodiment provides a media server. FIG. 3 is a structural block diagram of a media server according to Embodiment 3 of the present invention. As shown in FIG. 3, the media server includes: a recording activation module 30, configured to start recording, and receive a user. The control determination module 32 is configured to determine, according to the control button information received in advance from the application server AS, the control corresponding to the button indication, wherein the control button information includes at least one of the following: the control corresponding to the first operation is to pause recording The control corresponding to the second operation is to continue recording; the control corresponding to the third operation is to restart recording; the control execution module 34 is set to perform corresponding control on the recording button indication. Preferably, the control execution module 34 includes: a recording pause unit, configured to pause the current recording when the button indicates the first operation; and the recording continuation unit, when the button is set to the second operation, continue the current recording; When the button is set to the third operation, the previous recording file is deleted and the recording is restarted. Preferably, the media server further includes: ending the recording and reporting module, and setting the end of the recording operation to end the recording operation to the AS, so that the AS ends the current recording. After receiving the button indication of the user, the media server of the embodiment directly controls the recording according to the corresponding control operation of the button indication, solves the problem that the recording service function in the related art is single, improves the operability of the recording, and enhances the recording. The practicality of the system and the user experience. At the same time, the media server of the embodiment does not report the operation of suspending, continuing, and restarting the recording, and further enhances the timeliness and reliability of the recording stream media control. Embodiment 4 This embodiment provides a SIP-based recording control system. FIG. 4 is a structural block diagram of a SIP-based recording control system according to Embodiment 4 of the present invention. As shown in FIG. 4, the system includes: an application server 40, It is set to send the recording control button information to the media server 42. The media server 42 is the media server shown in FIG. 3, and its function is the same as that of the third embodiment, and will not be described in detail herein. As can be seen from the above description, the present invention achieves the following technical effects: On the basis of the original simple SIP-based recording service, the streaming media control functions such as pause, resume, restart, etc. are realized, and the user is more flexible. The function is more. At the same time, the function is open to the service by the AS, and can be flexibly controlled by specific services. It has strong versatility and is conducive to the development and use of large-scale recording services. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim 1. A recording control method based on the SIP initial protocol, including:  The media server MS starts the recording and receives the user's button indication;  The MS determines the control corresponding to the button indication according to the control button information received in advance from the application server AS, and the control button information includes at least one of the following: the control corresponding to the first operation is to pause recording; The corresponding control is operated to continue recording; the corresponding control of the third operation is to restart recording;  The MS performs the corresponding control of the button indication on the recording. 2. The method of claim 1, wherein the performing, by the MS, the control corresponding to the key indication to the recording comprises:  When the button is in the first operation, the MS pauses the recording; when the button indicates the second operation, the MS continues the recording; when the button indicates the third operation, the MS deletes The previous recording file, restart recording. The method according to claim 1, wherein, when the button indicates that the recording operation is ended, the MS ends the recording message to the AS, and the recording is ended by the AS. 4. The method according to any one of claims 1-3, wherein the AS carries the button control information to the MS through initial recording control signaling. The method according to any one of claims 1-3, wherein the first operation is pressing a first button; the second operation is pressing a second button; and the third operation is pressing a third button. The method according to any one of claims 1-3, wherein the first operation is to press a first button; the second operation is to press the first button twice within a specified time; The third operation is to press the third button. 7. A type of media server, including: a recording start module, set to start recording, and receive a user's button indication; The control determining module is configured to determine, according to the control button information received in advance from the application server AS, the control corresponding to the button indication, where the control button information includes at least one of the following: the control corresponding to the first operation is to pause recording; the second operation The corresponding control is to continue recording; the corresponding control of the third operation is to restart recording;  And a control execution module configured to perform control corresponding to the button indication on the recording. The media server according to claim 7, wherein the control execution module comprises: a recording pause unit, configured to pause the recording when the button is instructed to be the first operation;  a recording continuation unit, configured to continue the recording when the button is indicated as the second operation;  Re-recording unit, set to indicate that the button is the third operation, delete the previous recording file, and start recording again. The media server according to claim 7, wherein the media server further comprises: ending the recording and reporting module, and setting the button to end the recording operation, reporting the ending recording message to the AS, so as to The AS ends the recording. 10. A recording control system based on the Session Initiation Protocol SIP, including:  The application server is configured to send the recording control button information to the media server; the media server is the media server according to any one of claims 7-9.