CN104901929B - A kind of way of recording, call control server and recording system - Google Patents

A kind of way of recording, call control server and recording system Download PDF

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Publication number
CN104901929B
CN104901929B CN201410084244.2A CN201410084244A CN104901929B CN 104901929 B CN104901929 B CN 104901929B CN 201410084244 A CN201410084244 A CN 201410084244A CN 104901929 B CN104901929 B CN 104901929B
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terminal
multicast group
address
sent
recording
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CN104901929A (en
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张凯
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201410084244.2A priority Critical patent/CN104901929B/en
Priority to PCT/CN2014/090789 priority patent/WO2015131533A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/185—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast with management of multicast group membership
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5069—Address allocation for group communication, multicast communication or broadcast communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of way of recording, call control server and recording system, this method includes：Receive the recording request that the first terminal to be communicated with second terminal is sent；The first multicast group address is distributed for first terminal, notice first terminal adds the first multicast group and sending the first multicast group address to second terminal makes second terminal send to the first multicast group address the media for being communicated with first terminal；The second multicast group address is distributed for second terminal, notice second terminal adds the second multicast group and sending the second multicast group address to first terminal makes first terminal send to the second multicast group address the media for being communicated with second terminal；First, second multicast group address is sent to recording server, so that recording server adds first, second multicast group to receive and record the media of first, second terminal transmission.Above-mentioned technical proposal is recorded by multicast group, in the presence of the technical problem for taking MCU media resources when solving prior art calling record.

Description

A kind of way of recording, call control server and recording system
Technical field
The present invention relates to communication technical field, the more particularly to a kind of way of recording, call control server and recording system.
Background technology
With the continuous development of the communication technology, people can not only be communicated by electronic equipment, can also be to communication Content is recorded, and such as usually requires call to specific user based on supervision, record demand for some enterprises and individuals Recorded.
Fig. 1 is refer to, call control server is generally comprised in calling record system of the prior art（Call Control Manager）, recording server（Recording Server）, media control unit（Multipoint Control Unit, MCU）And terminal（User Equipment, UE）.Point-to-point calling record is realized between UE1 and UE2, it is necessary to logical Cross call control server and meeting-place is created on MCU, both sides UE1, UE2 and recording server of call will be added to meeting-place In.The data that MCU can send UE1 and UE2 in calling record are sent to recording server after carrying out audio mixing.
Because the calling record of prior art needs to create meeting-place and carries out audio mixing by MCU, it is therefore desirable to take MCU's Media resource, it is seen that prior art is when carrying out calling record in the presence of the technical problem for the media resource for taking MCU.
The content of the invention
The embodiment of the present invention provides a kind of way of recording and call control server, is being led to for solving prior art The technical problem of MCU media resource is taken during words recording.
In a first aspect, the present invention provides the first way of recording, applied to call control server, methods described includes：
The call control server receives the recording request that the first terminal to be communicated with second terminal is sent；
The call control server is that the first terminal distributes the first multicast group address, notifies the first terminal to add Enter the first multicast group corresponding to first multicast group address, and first multicast group address sent to the second terminal, The media for being communicated with the first terminal are sent to first multicast group address in order to the second terminal；
The call control server is that the second terminal distributes the second multicast group address, notifies the second terminal to add Enter the second multicast group corresponding to second multicast group address, and second multicast group address sent to the first terminal, The media for being communicated with the second terminal are sent to second multicast group address in order to the first terminal；
First multicast group address and second multicast group address are sent to recording by the call control server Server, so that the recording server adds first multicast group and second multicast group to receive and record described the The media that one terminal and the second terminal are sent.
With reference in a first aspect, in the first mode that may implement, in the call control server by described first Multicast group address and second multicast group address are sent to after recording server, and methods described also includes：
The call control server is recorded in the stopping that being used for for receiving the first terminal or second terminal transmission During the request of sound, the unicast address of the first terminal is sent to the second terminal, in order to which the second terminal is to described The unicast address of first terminal sends the media for being communicated with the first terminal, and described second is sent to the first terminal The unicast address of terminal, it is used in order to which the first terminal is sent to the unicast address of the second terminal with described second eventually Hold the media of communication.
With reference to the first mode that may implement of first aspect, in second of possible embodiment, methods described Also include：
The call control server receive it is described be used to stop the request of recording when, notify the first terminal to move back Go out first multicast group, notify the second terminal to exit second multicast group, notify the recording server to stop record Sound simultaneously exits first multicast group and second multicast group, and it is determined that the first terminal and the recording server are equal First multicast address is reclaimed when having dropped out the first multicast group, it is determined that the second terminal and the recording server Second multicast address is reclaimed when exiting the second multicast group.
Second aspect, the present invention provide second of way of recording, and applied to call control server, methods described includes：
The call control server receives the calling that the request that the first terminal is sent is communicated with second terminal Request, the first multicast group address of the first multicast group where the first terminal is included in the call request；
The call control server is described second whole when it is determined that the first terminal has turned on automatic recording business The second multicast group address of end distribution, adds the call request by second multicast group address and is sent to the second terminal Amended call request, with cause the second terminal add the second multicast group corresponding to second multicast group address and to First multicast group address sends the media for being communicated with the first terminal；
The call control server includes second multicast group address by what the second terminal of reception was sent Call is transmitted to the first terminal, is used for and institute in order to which the first terminal is sent to second multicast group address State the media of second terminal communication；
First multicast group address and second multicast group address are sent to recording by the call control server Server, so that the recording server adds first multicast group and second multicast group to receive and record described the The media that one terminal and the second terminal are sent.
With reference to second aspect, in the mode that the first may be implemented, described the is received in the call control server Before the call request that the request that one terminal is sent is communicated with second terminal, methods described also includes：Described first eventually When automatic recording business is opened at end, the call control server is that the first terminal distributes the first multicast group address and notified The first terminal adds first multicast group.
The mode that may implement with reference to the first of second aspect or second aspect, in the mode that second may implement In, first multicast group address and second multicast group address are sent to recording service in the call control server After device, methods described also includes：
The call control server is sent for carrying when detecting the first terminal on-hook to the second terminal Show that the second terminal exits the prompting message of multicast group；
The call control server receives feedback message corresponding to the prompting message, with reclaiming second multicast group Location, wherein, the feedback message is used to show that the second terminal has dropped out second multicast group.
With reference to second of mode that may implement of second aspect, in the mode that the third may be implemented, the calling control After the first terminal on-hook is detected, methods described also includes control server：
The call control server is when the first terminal closes the automatic recording business, described first group of recovery Broadcast group address.
The third aspect, the present invention provide the first call control server, and the call control server includes：
Receiving module, the recording request sent for receiving the first terminal to be communicated with second terminal；
Multicast address management module, for distributing the first multicast group address for the first terminal, notify described first eventually End adds the first multicast group corresponding to first multicast group address, and to the second terminal with sending first multicast group Location, the media for being communicated with the first terminal are sent to first multicast group address in order to the second terminal；For The second terminal distributes the second multicast group address, notifies the second terminal to add corresponding to second multicast group address the Two multicast groups, and second multicast group address is sent to the first terminal, in order to which the first terminal is to described second Multicast group address sends the media for being communicated with the second terminal；
Sending module, for first multicast group address and second multicast group address to be sent into recording service Device, so that the recording server adds first multicast group and second multicast group to receive and record described first eventually The media that end and the second terminal are sent.
With reference to the third aspect, in the mode that the first may be implemented, the sending module is additionally operable to：
It is described to connect after first multicast group address and second multicast group address are sent into recording server Receive module and receive the first terminal or when being used to stop the request of recording of second terminal transmission, to described second eventually End sends the unicast address of the first terminal, is used in order to which the second terminal is sent to the unicast address of the first terminal In the media to be communicated with the first terminal, to the unicast address of the first terminal transmission second terminal, in order to institute State first terminal and media for being communicated with the second terminal are sent to the unicast address of the second terminal.
With reference to the first mode that may implement of the third aspect, in the mode that second may implement, the transmission Module is additionally operable to：When being used to stop the request of recording in the receiving module described in receiving, the first terminal is notified to exit First multicast group, notify the second terminal to exit second multicast group, notify the recording server to stop recording And exit first multicast group and second multicast group；
The multicast address management module is additionally operable to：It is determined that the first terminal and the recording server have dropped out First multicast address is reclaimed during the first multicast group, it is determined that the second terminal and the recording server have dropped out Second multicast address is reclaimed during two multicast groups.
Fourth aspect, the present invention provide second of call control server, and the call control server includes：
Receiving module, the call request to be communicated for receiving the request that the first terminal is sent with second terminal, The first multicast group address of the first multicast group where the first terminal is included in the call request；
Multicast address management module, for when it is determined that the first terminal has turned on automatic recording business, for described the Two the second multicast group address of terminal distribution, second multicast group address is added into the call request and to the second terminal Amended call request is sent, to cause the second terminal to add the second multicast group corresponding to second multicast group address And the media for being communicated with the first terminal are sent to first multicast group address；
Sending module, what the second terminal for the receiving module to be received was sent includes second multicast group The call of address is transmitted to the first terminal, is used in order to which the first terminal is sent to second multicast group address In the media to be communicated with the second terminal；First multicast group address and second multicast group address are sent to recording Server, so that the recording server adds first multicast group and second multicast group to receive and record described the The media that one terminal and the second terminal are sent.
With reference to fourth aspect, in the mode that the first may be implemented, the multicast address management module is additionally operable to：
In the call request that the request that the receiving module reception first terminal is sent is communicated with second terminal Before, when the first terminal opens automatic recording business, distribute the first multicast group address for the first terminal and notify institute State first terminal and add first multicast group.
The mode that may implement with reference to the first of fourth aspect and fourth aspect, in the mode that second may implement In, the sending module is additionally operable to：First multicast group address and second multicast group address are being sent to recording clothes It is engaged in after device, when detecting the first terminal on-hook, is sent to the second terminal for prompting the second terminal to exit The prompting message of multicast group；
Feedback message corresponding to the sending module reception prompting message, triggers the multicast address management module and returns Second multicast group address is received, wherein, the feedback message is used to show that the second terminal has dropped out second multicast Group.
With reference to second of mode that may implement of fourth aspect, in the mode that the third may be implemented, the multicast Address management module is additionally operable to：After the first terminal on-hook is detected, the first terminal closes the automatic recording During business, first multicast group address is reclaimed.
5th aspect, the present invention provide the first recording system, and the system includes：
Call control server, the recording request sent for receiving the first terminal to be communicated with second terminal；For The first terminal distributes the first multicast group address, notifies the first terminal to add corresponding to first multicast group address the One multicast group, and first multicast group address is sent to the second terminal, in order to which the second terminal is to described first Multicast group address sends the media for being communicated with the first terminal；The second multicast group address is distributed for the second terminal, Notify the second terminal to add the second multicast group corresponding to second multicast group address, and institute is sent to the first terminal The second multicast group address is stated, is used for and the second terminal in order to which the first terminal is sent to second multicast group address The media of communication；First multicast group address and second multicast group address are sent to recording server；
The recording server, for adding first multicast group and second multicast group, receive and record described First terminal sends to the media of second multicast group and the second terminal and sent to the media of first multicast group.
With reference to the 5th aspect, in the mode that the first may be implemented, the system also includes：The first terminal and institute State second terminal.
With reference to the 5th aspect and the first mode that may implement of the 5th aspect, in the mode that second may implement In, the call control server is additionally operable to：
After first multicast group address and second multicast group address are sent into recording server, receive The first terminal or the second terminal send when being used to stop the request of recording, send described the to the second terminal The unicast address of one terminal, it is used for and described first in order to which the second terminal is sent to the unicast address of the first terminal The media of terminal communication, the unicast address of the second terminal is sent to the first terminal, in order to the first terminal to The unicast address of the second terminal sends the media for being communicated with the second terminal.
With reference to the 5th aspect and the first mode that may implement of the 5th aspect, in the mode that the third may be implemented In, the call control server is additionally operable to：
Receive it is described be used to stop the request of recording when, notify the first terminal to exit first multicast group, Notify the second terminal to exit second multicast group, notify the recording server to stop recording and exiting described first group Group and second multicast group are broadcast, and when it is determined that the first terminal and the recording server have dropped out the first multicast group First multicast address is reclaimed, is returned when it is determined that the second terminal and the recording server have dropped out the second multicast group Receive second multicast address.
6th aspect, the present invention provide second of recording system, and the system includes：
Call control server, the calling to be communicated for receiving the request that the first terminal is sent with second terminal Request, the first multicast group address of the first multicast group where the first terminal is included in the call request；It is determined that institute When stating first terminal and having turned on automatic recording business, the second multicast group address is distributed for the second terminal, by described second group Broadcast group address to add the call request and send amended call request to the second terminal, to cause described second eventually End add the second multicast group corresponding to second multicast group address and to first multicast group address send for it is described The media of first terminal communication；The call for including second multicast group address that the second terminal of reception is sent The first terminal is transmitted to, is used in order to which the first terminal is sent to second multicast group address with described second eventually Hold the media of communication；First multicast group address and second multicast group address are sent to recording server；
The recording server, for adding first multicast group and second multicast group, receive and record described First terminal sends to the media of second multicast group and the second terminal and sent to the media of first multicast group.
With reference to the 6th aspect, in the mode that the first may be implemented, the system also includes the first terminal and institute State second terminal.
With reference to the 6th aspect and the first mode that may implement of the 6th aspect, in the mode that second may implement In, the call control server is additionally operable to：
Before the call request that the request for receiving the first terminal transmission is communicated with second terminal, described first When terminal opens automatic recording business, the call control server is that the first terminal distributes the first multicast group address and led to Know that the first terminal adds first multicast group.
With reference to the 6th aspect and the first mode that may implement of the 6th aspect, in the mode that the third may be implemented In, the call control server is additionally operable to：
After first multicast group address and second multicast group address are sent into recording server, detect During the first terminal on-hook, send to the second terminal and disappear for prompting the second terminal to exit the prompting of multicast group Breath；Feedback message corresponding to the prompting message is received, reclaims second multicast group address, wherein, the feedback message is used In showing that the second terminal has dropped out second multicast group.
With reference to the third mode that may implement of the 6th aspect, in the mode that the 4th kind may implement, the calling Control server is additionally operable to：After the first terminal on-hook is detected, the first terminal closes the automatic recording industry During business, first multicast group address is reclaimed.
Said one or multiple technical schemes in the embodiment of the present application, at least have the following technical effect that：
During first terminal is communicated with second terminal, first terminal is responded by call control server and sent out The recording request sent, the first multicast group address and the second multicast group address are distributed for first terminal and second terminal respectively, make the One terminal and second terminal are separately added into the first multicast group and the second multicast group；Call control server is also by the first multicast group Location and the second multicast group address are sent to recording server, so that recording server adds the first multicast group and the second multicast group, So as to be recorded to the call between first terminal and second terminal.Point that call control server passes through multicast group address Match somebody with somebody, be added to using recording server as multicast member in the multicast group of first terminal and second terminal, so as to realize recording clothes Business device is recorded to the call between first terminal and second terminal, avoids and meeting-place is created on MCU, existing so as to solve The technical problem for thering is technology to take MCU media resource when carrying out calling record, the technology effect for saving media resource is reached Fruit.
Brief description of the drawings
Fig. 1 is the system schematic of calling record in the prior art；
Fig. 2 is the block diagram for the recording system that the embodiment of the present invention one provides；
Fig. 3 is the schematic flow sheet for the first way of recording that the embodiment of the present invention one provides；
Fig. 4 is the schematic flow sheet by consulting realization recording again that the embodiment of the present invention one provides；
Fig. 5 is the schematic flow sheet for second of way of recording that the embodiment of the present invention one provides；
Fig. 6 is the automatic recording schematic flow sheet that the embodiment of the present invention one provides；
Fig. 7 is the block diagram for the first call control server that the embodiment of the present application two provides；
Fig. 8 is the block diagram for second of call control server that the embodiment of the present application two provides；
Fig. 9 is the block diagram for the first call control server that the embodiment of the present application three provides；
Figure 10 is the block diagram for second of call control server that the embodiment of the present application three provides.
Embodiment
In the technical scheme that the embodiment of the present application provides, call control server, will by the distribution of multicast group address Recording server is added to as multicast member in the multicast group of first terminal and second terminal, so as to realize recording server pair Call between first terminal and second terminal is recorded, and avoids and meeting-place is created on MCU, is existed so as to solve prior art Taken during calling record the technical problem of MCU media resource.
Below in conjunction with the accompanying drawings to the main realization principle of the embodiment of the present application technical scheme, embodiment and its correspondingly The beneficial effect that can reach is explained in detail.
Embodiment one
Fig. 2 is refer to, the embodiment of the present application provides a kind of recording system, and the system includes：First terminal, second terminal, Call control server, recording server and router (Router).Wherein, first terminal is used to send media to second terminal Second multicast group at place, second terminal are used to send the first multicast group where media to first terminal；Call Control Service Device is used to realize call signaling processing and Service control, is responsible for the recording authority of user, sound-recording business flow is consulted；Recording Server can be docked with call control server by Web Service interfaces, for adding first multicast group and institute The second multicast group is stated to receive and record the media of first terminal and second terminal transmission；Router is used to replicate forwarding first eventually The media that end and second terminal are sent.
Refer to Fig. 3, to should recording system the embodiment of the present application the first way of recording is provided, applied to Call- Control1 Server.The first way of recording can apply in the scene that first terminal does not open automatic recording business.Specifically, first The kind way of recording includes：
S301：The call control server receives the recording that the first terminal to be communicated with second terminal is sent please Ask；
S302：The call control server is that the first terminal distributes the first multicast group address, notifies described first Terminal adds the first multicast group corresponding to first multicast group address, and sends first multicast group to the second terminal Address, the media for being communicated with the first terminal are sent to first multicast group address in order to the second terminal；
S303：The call control server is that the second terminal distributes the second multicast group address, notifies described second Terminal adds the second multicast group corresponding to second multicast group address, and sends second multicast group to the first terminal Address, the media for being communicated with the second terminal are sent to second multicast group address in order to the first terminal；
S304：First multicast group address and second multicast group address are sent to by the call control server Recording server, so that the recording server adds first multicast group and second multicast group to receive and record institute State first terminal and the media of second terminal transmission.
In specific implementation process, first terminal dials the communicating number of second terminal, by call control server with Second terminal establishes communication connection, and first terminal is communicated with second terminal using unicast communication address, i.e. described first eventually The unicast address that end passes through the second terminal（Such as the IP address of second terminal）Media are sent to the second terminal, described the The unicast address that two terminals pass through the first terminal（Such as the IP address of first terminal）Media are sent to the first terminal.
Fig. 4 is refer to, during first terminal is communicated with second terminal, step P2：User 1 manually boots record Sound（Such as click on " recording " button on first terminal interface）, triggering first terminal sends recording to call control server please Ask.
First terminal to call control server send recording request after, call control server perform S301 receive with The recording request that the first terminal that second terminal is communicated is sent.Call control server is after recording request is received by the Communication mode between one terminal and second terminal is adjusted to cast communication.
Lead to specifically, the communication mode between first terminal and second terminal is adjusted to multicast by call control server For letter, it is necessary to after the recording request that first terminal is initiated is received, it is that first terminal distributes the first multicast group address to perform S302, is led to Know that first terminal adds the first multicast group corresponding to the first multicast group address, and first multicast is sent to the second terminal Group address, the matchmaker for being communicated with the first terminal is sent to first multicast group address in order to the second terminal Body.Wherein, call control server can send the while notifying first terminal to add the first multicast group to second terminal One multicast group address, the first multicast group can also be added in notice first terminal and confirm that first terminal has been added to the first multicast After group the first multicast group address is sent to second terminal.
After call control server notice first terminal adds the first multicast group, first terminal performs P3：Receive calling Control server notice to add the notification message of the first multicast group, add the first multicast group corresponding to the first multicast group address, and Confirmation message, which is sent, to call control server informs that it has added the first multicast group.
Call control server can be after the confirmation message of first terminal be received, or is performed while execution S302 S303 is that the second terminal distributes the second multicast group address, notifies the second terminal to add second multicast group address pair The second multicast group answered, and second multicast group address is sent to the first terminal, in order to which the first terminal is to institute State the second multicast group address and send media for being communicated with the second terminal.It should be noted that the first multicast group address With the second multicast group address by call control server dynamically distributes, and the first multicast group address and the second multicast group address It will be recycled after End of Tape, and be this effective utilization rate for improving multicast group address.
Accordingly, second terminal performs P4：Receiving the notice of call control server notice the second multicast group of addition After message, the second multicast group corresponding to the second multicast group address is added, and send confirmation message to call control server and inform It has added the second multicast group.Further, call control server has added the first multicast group, second in confirmation first terminal After terminal has added the second multicast group, it is P5 to perform S304：First multicast group address and the second multicast group address are sent to record Sound server, so that recording server adds the first multicast group and the second multicast group to receive and record first terminal and second eventually Hold the media sent.
Specifically, after recording server adds the first multicast group and the second multicast group, second terminal performs P6：Pass through first Multicast group address sends media to the first multicast group.Due to including group member's first terminal and recording server in the first multicast group, Medium replication is forwarded to first terminal and recording server when receiving the media to the transmission of the first multicast group for this router.Phase Answer, first terminal performs P7：Media are sent to the second multicast group by the second multicast group address.Also because in the second multicast group Comprising group member's second terminal and recording server, medium replication is forwarded when router receives the media to the transmission of the second multicast group To second terminal and recording server., can be with so by the way that recording server is added into the first multicast group and the second multicast group Receive recording server and record that first terminal is sent to the media of second terminal and second terminal is sent to first terminal Media.It can be seen that meeting-place need not be created on MCU by multicast recording has saved media resource, also, recorded by multicast The media that the media and second terminal that need not be sent to first terminal are sent carry out audio mixing, prolong caused by reducing meeting-place audio mixing When, improve the voice quality under recording scene.
The above-mentioned way of recording is described in detail below by a complete example, it is assumed that first terminal UE1 is not opened Automatic recording business；UE1 and second terminal UE2 is the user being registered under call control server；Call control server Docked with recording server by Web Service interfaces.UE1 and UE2 Recording Process is as follows：
First, UE1 dials UE2 number, establishes call.Then, UE1 initiates recording request in call.Call- Control1 Server distributes multicast group address maddr_1 after the recording request of UE1 transmissions is received, for UE1, for UE2 with distributing multicast group Location maddr_2, then, SIP is sent to UE1（Session Initiation Protocol, session initiation protocol） Reinvite weight invitation messages, and in the SDP of weight invitation message（Session Description Protocol, conversation description Agreement）Mailing addresses of the maddr_2 as UE2 is carried in message body, in the header field of SIP Reinvite message（Such as callinfo Field）Maddr_1 is carried to notify UE1 to add multicast group corresponding to maddr_1；SIP Reinvite message is sent to UE2, Mailing addresses of the maddr_1 as UE1 is carried in the SDP message bodies of SIP Reinvite message, in SIP Reinvite message Header field（Such as callinfo fields）Maddr_2 is carried to notify UE2 to add multicast group corresponding to maddr_2.Accordingly, UE1 After the Reinvite message is received, then multicast group corresponding to maddr_1 can be added, using maddr_2 as Correspondent Node Mailing address sends media to maddr_2, and sends confirmation message to call control server and inform that it has added maddr_1 pairs The multicast group answered；UE2 then can add multicast group corresponding to maddr_2, make maddr_1 after Reinvite message is received Media are sent to maddr_1 for the mailing address of Correspondent Node, and sends confirmation message to call control server and informs it Add multicast group corresponding to maddr_2.Next, call control server receives the confirmation message that UE1 and UE2 is sent, and lead to Cross Web Service interfaces notice recording server and add the first multicast group and the second multicast.Recording server is adding first Received after multicast group and the second multicast group and record that UE1 is sent to the media of the first multicast group address and UE2 is sent to second group Broadcast the media of group address.
, can be by first terminal or second terminal to calling if user wants to stop recording in specific implementation process Control server sends the request for stopping recording.Call control server is receiving first terminal or second terminal transmission When being used to stop the request of recording, the unicast address of first terminal is sent to second terminal, in order to which second terminal is to first The unicast address of terminal sends the media for being communicated with first terminal, and the unicast address of second terminal is sent to first terminal, The media for being communicated with second terminal are sent to the unicast address of second terminal in order to first terminal.
For example, P8 user 1 performs the operation for stopping recording in Fig. 4, sent by first terminal to call control server For stopping the request of recording.Accordingly, call control server is when receiving the request for stopping recording, to first eventually End sends weight invitation message and is used to continue the unicast address of first terminal that communicates with second terminal after stopping recording to obtain. First terminal performs P9 and receives the heavy invitation message that call control server is sent, and is sent to call control server for the Two terminals continue the unicast address 1 of communication；Such as：The IP address of first terminal itself.Next, call control server receives the The unicast address 1 of one terminal, perform P10 to second terminal send weight invitation message with obtain stop record after be used for and first Terminal continues the unicast address of the second terminal of communication and informs the unicast address 1 of second terminal Correspondent Node, so that second is whole The unicast address 2 of itself is fed back to call control server after weight invitation message is received in end；Such as：The IP of second terminal itself Address.Then, call control server receives unicast address 2, and the unicast address 2 is sent into first terminal.Hereafter, first Terminal and second terminal perform P11 and P12 and exit the first multicast group and the second multicast group respectively, pass through unicast address 1 and unicast Address 2 continues point-to-point unicast communication.
Accordingly, call control server by the unicast address 2 of second terminal after first terminal is sent to, first terminal Can be to be communicated by unicast address 2 with second terminal, second terminal can also be entered by unicast address 1 with first terminal Row communication, then call control server can directly reclaim the first multicast group address and the second multicast group address.Certainly, call Control server can also receive first terminal or when being used to stop the request of recording of second terminal transmission, notify first Terminal exits the first multicast group, and notice second terminal exits the second multicast group, and notice recording server stops recording and exit the One multicast group and the second multicast group, and it is determined that first terminal and recording server reclaim first when having dropped out the first multicast group Multicast address, it is determined that second terminal and recording server reclaim the second multicast address when having dropped out the second multicast group.It can be seen that Call control server is by dynamically distributes multicast group address and recovery multicast group address, so that idle multicast group address can Utilization rate for other business, thus raising multicast address.
Fig. 5 is refer to, when first terminal has automatic recording authority, the recording system of corresponding the embodiment of the present application offer The embodiment of the present application also provides second of way of recording, applied to call control server.Second of way of recording can be applied In the scene that first terminal opens automatic recording business.Specifically, second of way of recording includes：
S501：The call control server receives what the request that the first terminal is sent was communicated with second terminal Call request, the first multicast group address of the first multicast group where the first terminal is included in the call request；
S502：The call control server is described when it is determined that the first terminal has turned on automatic recording business Second terminal distributes the second multicast group address, and second multicast group address is added into the call request and to the described second end End sends amended call request, to cause the second terminal to add the second multicast corresponding to second multicast group address Group simultaneously sends the media for being communicated with the first terminal to first multicast group address；
S503：The call control server by the second terminal of reception send with including second multicast group The call of location is transmitted to the first terminal, is used in order to which the first terminal is sent to second multicast group address The media to be communicated with the second terminal；
S504：First multicast group address and second multicast group address are sent to by the call control server Recording server, so that the recording server adds first multicast group and second multicast group to receive and record institute State first terminal and the media of second terminal transmission.
Fig. 6 is refer to, because first terminal opens automatic recording business, so call control server is receiving first During the message for the unlatching automatic recording business that terminal is sent, mark first terminal has turned on automatic recording business such as：“record= On ", and the first multicast group address maddr_1 is distributed for first terminal, and notify first terminal to add the first multicast group.Such as： Call control server can be by performing P2：By sending signaling message to first terminal（Such as carry maddr_1 SIP Info message）First terminal is notified to add the first multicast group.First terminal will equally send and confirm after the first multicast group is added Message informs call control server, and it has added the first multicast group.So, first terminal is needing to lead to second terminal foundation During letter connection, perform P3 and send call request to call control server, request is established with second terminal and communicated to connect, and wherein should The first multicast group address maddr_1 corresponding to the first multicast group where first terminal is included in call request.
Therefore, call control server, which performs S501, receives what the request that first terminal is sent was communicated with second terminal Call request.When it is determined that the first terminal has turned on automatic recording business, it is P4 then to perform S502：For described second eventually The second multicast group address of end distribution, adds the call request by second multicast group address and is sent to the second terminal Amended call request, with cause the second terminal add the second multicast group corresponding to second multicast group address and to First multicast group address sends the media for being communicated with the first terminal.
After S502, second terminal receives the amended call request that call control server is sent, please from calling The second multicast group address of middle acquisition is sought, and adds the second multicast group.Then, second terminal sends to call control server and responded The call of call request, the call include the second multicast group address and are used to notify first by call control server Second multicast group address corresponding to terminal Correspondent Node.And then, it is whole by the second of reception to perform S503 for call control server The call including second multicast group address that end is sent is transmitted to the first terminal, in order to the first terminal The media for being communicated with the second terminal are sent to second multicast group address.Accordingly, first terminal performs P6 and connect Second multicast group address of the call acquisition as Correspondent Node is received, and passes through call control server and second terminal confirmation Communication.
Further, call control server then performs S504 by first multicast group address and second multicast Group address is sent to recording server so that the recording server add first multicast group and second multicast group with Receive and record the first terminal and the second terminal send media.Specifically, call control server can connect After receiving the response message that the confirmation that first terminal is sent communicates with second terminal, by the first multicast group address and the second multicast Group address is sent to recording server, can also receive the call of second terminal transmission, exhaled to first terminal forwarding Cry and the first multicast group address and the second multicast group address are sent to recording server while response, accelerate recording process.
Because the communication of first terminal and second terminal is cast communication, first terminal performs P9 when sending Media Stream：It is logical Cross the group member that medium replication is transmitted to the second multicast group by router：Second terminal and recording server.Likewise, second terminal P10 is performed when sending media：Medium replication is transmitted to the group member of the first multicast group by router：First terminal and recording take Business device.Therefore recording server can receive and record first terminal and media that second terminal is sent, so as to first terminal Call with second terminal is recorded.It can be seen that meeting-place need not be created on MCU by multicast recording has saved media money Source, it is not necessary to audio mixing is carried out to Media Stream, delay caused by reducing meeting-place audio mixing, improves the voice matter under recording scene Amount.
For example, it is assumed that UE1 opens automatic recording business；UE1 and UE2 is the use being registered under call control server Family；Call control server is docked with recording server by Web Service interfaces.UE1 and UE2 Recording Process is as follows：
First, first terminal UE1 dials second terminal UE2 number and sends call request to call control server（SIP Invite message）, first group corresponding to the first multicast group where carrying itself in the SDP message bodies in SIP invite message Broadcast group address（maddr_1）.Then, call control server distributes after the call request of UE1 transmissions is received for second terminal Second multicast group address（maddr_2）, and maddr_2 is added in SIP invite message and obtains amended call request And it is sent to UE2.Then, UE2 obtains MPTY UE1 mailing address according to the SIP invite message received（maddr_ 1）；UE2 is second group according to corresponding to the second multicast group that second terminal addition is required in the amended call request received Broadcast group address maddr_2, second terminal adds the second multicast group, and notify call control server its added the second multicast group （maddr_2）, and call is returned to UE1 by call control server（Such as Temporary Response message, 200OK response messages Deng）, and maddr_2 is carried as the mailing address of itself in the SDP message bodies of call.First terminal is controlled by calling The mailing address that control server acknowledges receipt of second terminal to second terminal confirms foundation communication connection, and then UE1 sends media To the second multicast group, UE2 sends media to the first multicast group, realizes UE1 and UE2 communication.Next, call control server By Web Service interfaces recording server can be notified to add the first multicast group (maddr_1) and the second multicast group (maddr_2).Recording server can be with to the first multicast group and the second multicast in the first multicast group of addition and the second multicast group The media that group receives are recorded.
In specific implementation process, the first multicast group address and the second multicast group address are sent to by call control server After recording server, if call control server detects first terminal on-hook, sent to second terminal for prompting the Two terminals exit the prompting message of multicast group；Then, call control server receives feedback message corresponding to prompting message, recovery Second multicast group address, wherein, feedback message is used to show that second terminal has dropped out the second multicast group.Certainly, calling control After control server may also detect that first terminal on-hook, directly perform P12 and reclaim the second multicast group address.It can be seen that When one terminal opens automatic recording business, call control server distributes the first multicast address to first terminal in advance, and logical Words make first terminal retain the first multicast address after terminating, reduce first terminal signaling negotiation step when carrying out calling record.
Certainly, when first terminal closes automatic recording business, call control server then reclaims the first multicast accordingly Group address.Specifically, after first terminal on-hook is detected, user can close automatic recording business by first terminal, For this after first terminal on-hook is detected, call control server also receive first terminal transmission be used for close automatic record The request message of sound business, reclaim the first multicast group address.
Embodiment two
Fig. 7 is refer to, the embodiment of the present application provides the first call control server, the call control server bag Include：
Receiving module 701, the recording request sent for receiving the first terminal to be communicated with second terminal；
Multicast address management module 702, for distributing the first multicast group address for the first terminal, notify described first Terminal adds the first multicast group corresponding to first multicast group address, and sends first multicast group to the second terminal Address, the media for being communicated with the first terminal are sent to first multicast group address in order to the second terminal； The second multicast group address is distributed for the second terminal, notifies the second terminal to add corresponding to second multicast group address Second multicast group, and second multicast group address is sent to the first terminal, in order to which the first terminal is to described the Two multicast group address send the media for being communicated with the second terminal；
Sending module 703, for first multicast group address and second multicast group address to be sent into recording clothes Business device, so that the recording server adds first multicast group and second multicast group to receive and record described first The media that terminal and the second terminal are sent.
In specific implementation process, the sending module 703 is additionally operable to：By first multicast group address and described Two multicast group address are sent to after recording server, and the receiving module 701 receives the first terminal or described second When what terminal was sent is used for the request of stopping recording, the unicast address of the first terminal is sent to the second terminal, so as to The media for being communicated with the first terminal are sent to the unicast address of the first terminal in the second terminal, to described First terminal sends the unicast address of the second terminal, in order to which the first terminal is to the unicast address of the second terminal Send the media for being communicated with the second terminal.
In specific implementation process, the sending module 703 is additionally operable to：The use is received in the receiving module 701 When the request of recording is stopped, notifying the first terminal to exit first multicast group, notify the second terminal to exit institute The second multicast group is stated, notifies the recording server to stop recording and exiting first multicast group and second multicast group；
The multicast address management module 702 is additionally operable to：It is determined that the first terminal and the recording server First multicast address is reclaimed when exiting the first multicast group, it is determined that the second terminal and the recording server have moved back Second multicast address is reclaimed when going out the second multicast group.
It should be noted that the first call control server that the embodiment of the present application provides is：With scheming in embodiment one 3rd, virtual bench corresponding to the way of recording that Fig. 4 is provided, the recording that its specific implementation process provides with Fig. 3, Fig. 4 in embodiment one Method is identical.
Fig. 8 is refer to, the embodiment of the present application also provides second of call control server, the call control server bag Include：
Receiving module 801, please for receiving the calling that the request that the first terminal is sent is communicated with second terminal Ask, the first multicast group address of the first multicast group where the first terminal is included in the call request；
Multicast address management module 802, for being described when it is determined that the first terminal has turned on automatic recording business Second terminal distributes the second multicast group address, and second multicast group address is added into the call request and to the described second end End sends amended call request, to cause the second terminal to add the second multicast corresponding to second multicast group address Group simultaneously sends the media for being communicated with the first terminal to first multicast group address；
Sending module 803, what the second terminal for the receiving module 801 to be received was sent includes described second The call of multicast group address is transmitted to the first terminal, in order to which the first terminal is to second multicast group address Send the media for being communicated with the second terminal；First multicast group address and second multicast group address are sent To recording server, so that the recording server adds first multicast group and second multicast group to receive and record The media that the first terminal and the second terminal are sent.
In specific implementation process, the multicast address management module 802 is additionally operable to：Received in the receiving module 801 Before the call request that the request that the first terminal is sent is communicated with second terminal, the first terminal opens automatic record During sound business, distribute the first multicast group address for the first terminal and notify the first terminal to add first multicast Group.
In specific implementation process, the sending module 803 is additionally operable to：By first multicast group address and described Two multicast group address are sent to after recording server, when detecting the first terminal on-hook, are sent to the second terminal For prompting the second terminal to exit the prompting message of multicast group；
The sending module 803 receive the prompting message corresponding to feedback message, trigger the multicast address management mould Block 802 reclaims second multicast group address, wherein, the feedback message is used to show that the second terminal has dropped out described the Two multicast groups.
Further, the multicast address management module 802 is additionally operable to：After the first terminal on-hook is detected, When the first terminal closes the automatic recording business, first multicast group address is reclaimed.
It should be noted that second of call control server that the embodiment of the present application provides is：With scheming in embodiment one 5th, virtual bench corresponding to the way of recording that Fig. 6 is provided, the recording that its specific implementation process provides with Fig. 5, Fig. 6 in embodiment one Method is identical.And the first call control server and second of call control server that Fig. 7 and Fig. 8 is provided can be same One server.
Embodiment three
Fig. 9 is refer to, the embodiment of the present application also provides the first call control server for the first way of recording.The A kind of call control server includes：Transmitter 901, receiver 902, processor（CPU）903rd, memory 904 etc., wherein sending out Device 901 is sent to be used to send message to first terminal, second terminal, recording server etc., receiver 902 is used to receive first eventually The message that end, second terminal, recording server etc. are sent, memory 904 are used to store the message for needing to send or receive, place Reason device 903 is used to handle corresponding pending message.
Specifically, receiver 902 is used to receive the recording request that the first terminal to be communicated with second terminal is sent；Place Manage device 903 to be used to distribute the first multicast group address for the first terminal, notify the first terminal to add first multicast First multicast group corresponding to group address, and first multicast group address is sent to the second terminal, in order to described second Terminal sends the media for being communicated with the first terminal to first multicast group address；For second terminal distribution the Two multicast group address, notify that the second terminal adds the second multicast group corresponding to second multicast group address, and to described First terminal sends second multicast group address, is used in order to which the first terminal is sent to second multicast group address The media to be communicated with the second terminal；Transmitter 901 is used for by first multicast group address and second multicast group Location is sent to recording server, so that the recording server adds first multicast group and second multicast group to receive And record the first terminal and the media of second terminal transmission.
In specific implementation process, the transmitter 901 is additionally operable to：By first multicast group address and described second Multicast group address is sent to after recording server, and the receiver 902 receives the first terminal or the second terminal When what is sent is used for the request of stopping recording, the unicast address of the first terminal is sent to the second terminal, in order to institute State second terminal and send media for being communicated with the first terminal to the unicast address of the first terminal, to described first Terminal sends the unicast address of the second terminal, in order to which the first terminal is sent to the unicast address of the second terminal For the media to be communicated with the second terminal.
In specific implementation process, the transmitter 901 is additionally operable to：Received in the receiver 902 described for stopping During the request only recorded, notify the first terminal to exit first multicast group, notify the second terminal to exit described Two multicast groups, the recording server is notified to stop recording and exiting first multicast group and second multicast group；
The processor 903 is additionally operable to：It is determined that the first terminal and the recording server have dropped out first group First multicast address is reclaimed when broadcasting group, it is determined that the second terminal and the recording server have dropped out the second multicast Second multicast address is reclaimed during group.
It should be noted that the first call control server that the embodiment of the present application provides is：With scheming in embodiment one 3rd, entity apparatus corresponding to the way of recording that Fig. 4 is provided, the recording that its specific implementation process provides with Fig. 3, Fig. 4 in embodiment one Method is identical.
Figure 10 is refer to, the embodiment of the present application also provides second of call control server for second of way of recording. Second of call control server includes transmitter 1001, receiver 1002, processor（CPU）1003rd, memory 1004 etc., its Middle transmitter 1001 is used to send message to first terminal, second terminal, recording server etc., and receiver 1002 is used to receive the The message that one terminal, second terminal, recording server etc. are sent, memory 1004, which is used to store, to be needed to send or what is received disappears Breath, processor 1003 are used to handle corresponding pending message.
Specifically, receiver 1002, what the request for receiving the first terminal transmission was communicated with second terminal Call request, the first multicast group address of the first multicast group where the first terminal is included in the call request；
Processor 1003, for when it is determined that the first terminal has turned on automatic recording business, being the second terminal The second multicast group address is distributed, second multicast group address is added the call request and sent to the second terminal and is repaiied Call request after changing, to cause the second terminal to add the second multicast group corresponding to second multicast group address and to institute State the first multicast group address and send media for being communicated with the first terminal；
Transmitter 1001, what the second terminal for the receiver 1002 to be received was sent includes described second group The call for broadcasting group address is transmitted to the first terminal, in order to which the first terminal is sent out to second multicast group address Send the media for being communicated with the second terminal；First multicast group address and second multicast group address are sent to Recording server, so that the recording server adds first multicast group and second multicast group to receive and record institute State first terminal and the media of second terminal transmission.
In specific implementation process, the processor 1003 is additionally operable to：Described first is received in the receiver 1002 eventually Before the call request that the request that end is sent is communicated with second terminal, when the first terminal opens automatic recording business, The first multicast group address is distributed for the first terminal and notifies the first terminal to add first multicast group.
In specific implementation process, the transmitter 1001 is additionally operable to：By first multicast group address and described Two multicast group address are sent to after recording server, when detecting the first terminal on-hook, are sent to the second terminal For prompting the second terminal to exit the prompting message of multicast group；
The transmitter 1001 receive the prompting message corresponding to feedback message, trigger the processor 1003 and reclaim institute The second multicast group address is stated, wherein, the feedback message is used to show that the second terminal has dropped out second multicast group.
Further, the processor 1003 is additionally operable to：After the first terminal on-hook is detected, described first eventually When the automatic recording business is closed at end, first multicast group address is reclaimed.
It should be noted that second of call control server that the embodiment of the present application provides is：With scheming in embodiment one 5th, entity apparatus corresponding to the way of recording that Fig. 6 is provided, the recording that its specific implementation process provides with Fig. 5, Fig. 6 in embodiment one Method is identical.And the first call control server and second of call control server that Fig. 9 and Figure 10 is provided can be Same server.
By one or more of the embodiment of the present application technical scheme, following technique effect can be at least realized：
During first terminal is communicated with second terminal, first terminal is responded by call control server and sent out The recording request sent, the first multicast group address and the second multicast group address are distributed for first terminal and second terminal respectively, make the One terminal and second terminal are separately added into the first multicast group and the second multicast group；Call control server is also by the first multicast group Location and the second multicast group address are sent to recording server, so that recording server adds the first multicast group and the second multicast group, So as to be recorded to the call between first terminal and second terminal.Point that call control server passes through multicast group address Match somebody with somebody, be added to using recording server as multicast member in the multicast group of first terminal and second terminal, so as to realize recording clothes Business device is recorded to the call between first terminal and second terminal, avoids and meeting-place is created on MCU, existing so as to solve The technical problem for thering is technology to take MCU media resource when carrying out calling record, the technology effect for saving media resource is reached Fruit.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more Usable storage medium（Including but not limited to magnetic disk storage, CD-ROM, optical memory etc.）The computer program production of upper implementation The form of product.
The present invention is with reference to method according to embodiments of the present invention, equipment（System）And the flow of computer program product Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims (23)

1. a kind of way of recording, applied to call control server, it is characterised in that methods described includes：
The call control server receives the recording request that the first terminal to be communicated with second terminal is sent；
The call control server is that the first terminal distributes the first multicast group address, notifies the first terminal to add institute The first multicast group corresponding to the first multicast group address is stated, and first multicast group address is sent to the second terminal, so as to The media for being communicated with the first terminal are sent to first multicast group address in the second terminal；
The call control server is that the second terminal distributes the second multicast group address, notifies the second terminal to add institute The second multicast group corresponding to the second multicast group address is stated, and second multicast group address is sent to the first terminal, so as to The media for being communicated with the second terminal are sent to second multicast group address in the first terminal；
First multicast group address and second multicast group address are sent to recording service by the call control server Device, so that the recording server adds first multicast group and second multicast group to receive and record described first eventually The media that end and the second terminal are sent.
2. the method as described in claim 1, it is characterised in that in the call control server by first multicast group Location and second multicast group address are sent to after recording server, and methods described also includes：
The call control server stops recording in being used for of receiving that the first terminal or the second terminal send During request, the unicast address of the first terminal is sent to the second terminal, in order to which the second terminal is to described first The unicast address of terminal sends the media for being communicated with the first terminal, and the second terminal is sent to the first terminal Unicast address, in order to which the first terminal is sent for leading to the second terminal to the unicast address of the second terminal The media of letter.
3. method as claimed in claim 2, it is characterised in that methods described also includes：
The call control server receive it is described be used to stop the request of recording when, notify the first terminal to exit institute The first multicast group is stated, notifies the second terminal to exit second multicast group, notifies the recording server to stop recording simultaneously First multicast group and second multicast group are exited, and it is determined that the first terminal and the recording server have moved back First multicast address is reclaimed when going out the first multicast group, it is determined that the second terminal and the recording server have dropped out Second multicast address is reclaimed during the second multicast group.
4. a kind of way of recording, applied to call control server, it is characterised in that methods described includes：
The call control server receives the call request for being used to ask to be communicated with second terminal that first terminal is sent, The first multicast group address of the first multicast group where the first terminal is included in the call request；
The call control server is when it is determined that the first terminal has turned on automatic recording business, for the second terminal point With the second multicast group address, second multicast group address is added the call request and sent to the second terminal and is changed Call request afterwards, to cause the second terminal to add the second multicast group corresponding to second multicast group address and to described First multicast group address sends the media for being communicated with the first terminal；
The calling for including second multicast group address that the call control server sends the second terminal of reception Response is transmitted to the first terminal, in order to which the first terminal is sent for described the to second multicast group address The media of two terminals communication；
First multicast group address and second multicast group address are sent to recording service by the call control server Device, so that the recording server adds first multicast group and second multicast group to receive and record described first eventually The media that end and the second terminal are sent.
5. method as claimed in claim 4, it is characterised in that receive the first terminal hair in the call control server Before the call request for being used to ask to be communicated with second terminal sent, methods described also includes：
When the first terminal opens automatic recording business, the call control server is first terminal distribution first Multicast group address simultaneously notifies the first terminal to add first multicast group.
6. the method as described in claim 4 or 5, it is characterised in that in the call control server by first multicast Group address and second multicast group address are sent to after recording server, and methods described also includes：
The call control server is sent for prompting institute when detecting the first terminal on-hook to the second terminal State the prompting message that second terminal exits multicast group；
The call control server receives feedback message corresponding to the prompting message, reclaims second multicast group address, Wherein, the feedback message is used to show that the second terminal has dropped out second multicast group.
7. method as claimed in claim 6, it is characterised in that the call control server is detecting the first terminal After on-hook, methods described also includes：
The call control server reclaims first multicast group when the first terminal closes the automatic recording business Address.
8. a kind of call control server, it is characterised in that the call control server includes：
Receiving module, the recording request sent for receiving the first terminal to be communicated with second terminal；
Multicast address management module, for distributing the first multicast group address for the first terminal, the first terminal is notified to add Enter the first multicast group corresponding to first multicast group address, and first multicast group address sent to the second terminal, The media for being communicated with the first terminal are sent to first multicast group address in order to the second terminal；To be described Second terminal distributes the second multicast group address, notifies the second terminal to add corresponding to second multicast group address second group Broadcast group, and second multicast group address is sent to the first terminal, in order to which the first terminal is to second multicast Group address sends the media for being communicated with the second terminal；
Sending module, for first multicast group address and second multicast group address to be sent into recording server, with The recording server is added first multicast group and second multicast group with receive and record the first terminal and The media that the second terminal is sent.
9. call control server as claimed in claim 8, it is characterised in that the sending module is additionally operable to：
After first multicast group address and second multicast group address are sent into recording server, the reception mould Block receives the first terminal or when being used to stop the request of recording of second terminal transmission, is sent out to the second terminal Send the unicast address of the first terminal, in order to the second terminal to the unicast address of the first terminal send for The media of first terminal communication, the unicast address of the second terminal is sent to the first terminal, in order to described the The unicast address of one terminal to the second terminal sends the media for being communicated with the second terminal.
10. call control server as claimed in claim 9, it is characterised in that the sending module is additionally operable to：Connect described Receive module and receive described when being used to stop the request of recording, notify the first terminal to exit first multicast group, notify The second terminal exits second multicast group, notifies the recording server to stop recording and exiting first multicast group With second multicast group；
The multicast address management module is additionally operable to：It is determined that the first terminal and the recording server have dropped out first First multicast address is reclaimed during multicast group, it is determined that the second terminal and the recording server have dropped out second group Second multicast address is reclaimed when broadcasting group.
11. a kind of call control server, it is characterised in that the call control server includes：
Receiving module, it is described for receiving the call request for being used to ask to be communicated with second terminal of first terminal transmission The first multicast group address of the first multicast group where the first terminal is included in call request；
Multicast address management module, for when it is determined that the first terminal has turned on automatic recording business, being described second whole The second multicast group address of end distribution, adds the call request by second multicast group address and is sent to the second terminal Amended call request, with cause the second terminal add the second multicast group corresponding to second multicast group address and to First multicast group address sends the media for being communicated with the first terminal；
Sending module, what the second terminal for the receiving module to be received was sent includes second multicast group address Call be transmitted to the first terminal, in order to the first terminal to second multicast group address send for The media of the second terminal communication；First multicast group address and second multicast group address are sent to recording service Device, so that the recording server adds first multicast group and second multicast group to receive and record described first eventually The media that end and the second terminal are sent.
12. call control server as claimed in claim 11, it is characterised in that the multicast address management module is also used In：
The call request for being used to ask to be communicated with second terminal of the first terminal transmission is received in the receiving module Before, when the first terminal opens automatic recording business, distribute the first multicast group address for the first terminal and notify institute State first terminal and add first multicast group.
13. the call control server as described in claim 11 or 12, it is characterised in that the sending module is additionally operable to： After first multicast group address and second multicast group address are sent into recording server, described first is detected eventually When holding on-hook, the prompting message for prompting the second terminal to exit multicast group is sent to the second terminal；
Feedback message corresponding to the sending module reception prompting message, trigger the multicast address management module recovery institute The second multicast group address is stated, wherein, the feedback message is used to show that the second terminal has dropped out second multicast group.
14. call control server as claimed in claim 13, it is characterised in that the multicast address management module is also used In：
After the first terminal on-hook is detected, when the first terminal closes the automatic recording business, described in recovery First multicast group address.
15. a kind of recording system, it is characterised in that the system includes：
Call control server, the recording request sent for receiving the first terminal to be communicated with second terminal；To be described First terminal distributes the first multicast group address, notifies the first terminal to add corresponding to first multicast group address first group Broadcast group, and first multicast group address is sent to the second terminal, in order to which the second terminal is to first multicast Group address sends the media for being communicated with the first terminal；The second multicast group address, notice are distributed for the second terminal The second terminal adds the second multicast group corresponding to second multicast group address, and sends described the to the first terminal Two multicast group address, in order to which the first terminal is sent for being communicated with the second terminal to second multicast group address Media；First multicast group address and second multicast group address are sent to recording server；
The recording server, for adding first multicast group and second multicast group, receive and record described first Terminal sends to the media of second multicast group and the second terminal and sent to the media of first multicast group.
16. system as claimed in claim 15, it is characterised in that the system also includes：The first terminal and described Two terminals.
17. the system as described in claim 15 or 16, it is characterised in that the call control server is additionally operable to：
After first multicast group address and second multicast group address are sent into recording server, receive described When what first terminal or the second terminal were sent is used for the request of stopping recording, described first is sent eventually to the second terminal The unicast address at end, it is used for and the first terminal in order to which the second terminal is sent to the unicast address of the first terminal The media of communication, the unicast address of the second terminal is sent to the first terminal, in order to which the first terminal is to described The unicast address of second terminal sends the media for being communicated with the second terminal.
18. the system as described in claim 15 or 16, it is characterised in that the call control server is additionally operable to：
When receiving the request for stopping recording, notify that the first terminal exits first multicast group, described in notice Second terminal exits second multicast group, notifies the recording server to stop recording and exiting first multicast group and institute The second multicast group is stated, and when it is determined that the first terminal and the recording server have dropped out the first multicast group described in recovery First multicast address, it is determined that the second terminal and the recording server reclaim described when having dropped out the second multicast group Two multicast address.
19. a kind of recording system, it is characterised in that the system includes：
Call control server, the calling for being used to ask to be communicated with second terminal for receiving first terminal transmission please Ask, the first multicast group address of the first multicast group where the first terminal is included in the call request；It is determined that described When first terminal has turned on automatic recording business, the second multicast group address is distributed for the second terminal, by second multicast Group address adds the call request and sends amended call request to the second terminal, to cause the second terminal Add the second multicast group corresponding to second multicast group address and sent to first multicast group address for described the The media of one terminal communication；The call including second multicast group address that the second terminal of reception is sent turns The first terminal is issued, is used for and the second terminal in order to which the first terminal is sent to second multicast group address The media of communication；First multicast group address and second multicast group address are sent to recording server；
The recording server, for adding first multicast group and second multicast group, receive and record described first Terminal sends to the media of second multicast group and the second terminal and sent to the media of first multicast group.
20. system as claimed in claim 19, it is characterised in that the system also includes the first terminal and described second Terminal.
21. the system as described in claim 19 or 20, it is characterised in that the call control server is additionally operable to：
Before the call request for being used to ask to be communicated with second terminal that the first terminal is sent is received, described first When terminal opens automatic recording business, the call control server is that the first terminal distributes the first multicast group address and led to Know that the first terminal adds first multicast group.
22. the system as described in claim 19 or 20, it is characterised in that the call control server is additionally operable to：
After first multicast group address and second multicast group address are sent into recording server, detect described During first terminal on-hook, the prompting message for prompting the second terminal to exit multicast group is sent to the second terminal；Connect Feedback message corresponding to the prompting message is received, reclaims second multicast group address, wherein, the feedback message is used to show The second terminal has dropped out second multicast group.
23. the system as claimed in claim 22, it is characterised in that the call control server is additionally operable to：
After the first terminal on-hook is detected, when the first terminal closes the automatic recording business, described in recovery First multicast group address.
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