CN101437047B - Method, system and media server for playback/ sound-recording for user terminal - Google Patents
Method, system and media server for playback/ sound-recording for user terminal Download PDFInfo
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- CN101437047B CN101437047B CN200810218283A CN200810218283A CN101437047B CN 101437047 B CN101437047 B CN 101437047B CN 200810218283 A CN200810218283 A CN 200810218283A CN 200810218283 A CN200810218283 A CN 200810218283A CN 101437047 B CN101437047 B CN 101437047B
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Abstract
The invention discloses a method, a system and a media server for sound reproducing and recording of a user terminal. The key points of the invention comprise: adding a media resource unit in the media server; during sound reproduction, if the media server does not have a media type matched with the user terminal, converting a media stream to be played by using the media source unit into a spare media type determined during media negotiation and then sending the media stream to the user terminal for playing the media stream; and during sound recording, when the media server does not have a media type matched with the user terminal, converting a media stream to be stored by using the media resource unit into a spare media type determined during media negotiation and then storing the media steam as an audio document. By adopting the invention, the media server can ensure successful sound reproducing and recording regardless of what media types the user terminal supports, thereby protecting the interests of users.
Description
Technical field
The present invention relates to a kind of method, system and media server that user terminal is carried out playback/recording.
Background technology
Application server (Application Server, APP), the logic of being responsible for various value-added services and IN service produces and management, and the API of various openings is provided, and the exploitation professional for the third party provides authoring platform.Application server is an independently assembly, and is irrelevant with the soft switch of key-course, thereby realized business and called out separating of control, helps the introducing of new business.
Media server (Media Server; MS); It is the autonomous device that the specialized media resource function is provided in the soft exchanging system; Also be the visual plant in the packet network, the media resource function in the fundamental sum enhancing business is provided, various resource functions and communication function and management maintenance functions such as conversion between the transmission of the collection that comprises dtmf signal and the generation of decoding, signal tone and transmission, recorded announcement, meeting, different code decode algorithm.
Media server can recorded speech and with the sound file storage of formulating form at local disk, also can play previously stored sound file, the convenient use to the user.But media server reads the fixing medium type that the Media Stream that sends behind the sound file is supported for this media server from local disk to the user terminal playback time; When media server was recorded to user terminal, the Media Stream that can receive also was necessary for the fixed medium type that this media server is supported.So for not having the user terminal of the medium type that is complementary with media server, media server can't provide the business of playback/recording to this user terminal, has satisfied not user's demand.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of user terminal being carried out playback/recording; And system, the media server of realizing this method, guarantee that media server is successfully to supporting the user terminal realization playback/recording of different media types.
For solving the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of method that user terminal is carried out playback comprises:
At first, said user terminal and media server carry out media negotiation, confirm medium type for use;
After media negotiation finished, said media server read sound file to be play, if the medium type and the said medium type for use of the Media Stream that obtains that reads are inconsistent, sent to user terminal after then said media stream transition being become medium type for use; If the medium type of the Media Stream that obtains that reads is consistent with said medium type for use, then said Media Stream is directly sent to user terminal and play.
Said method specifically may further comprise the steps:
A, said user terminal off-hook are also dialed the fixed service number and are used playback professional, and Softswitch is through application server notice media server, and the medium type of this user terminal being supported through application server sends to media server;
B, said media server judge whether this media server has and the user terminal media type matched, if having, then from media type matched, choose any one kind of them as medium type for use; Otherwise, from the medium type that user terminal is supported, choose any one kind of them as medium type for use; Then, media server is preserved said medium type for use, and it is sent to application server through the SIP response message, returns to user terminal by it;
C, said application server issue reproduction command to media server; Media server is received back application playback resource; Judge whether this media server supports said medium type for use; If do not support, redispatch to user terminal after then reading sound file to be play and its media stream transition being become medium type for use; If support, then said Media Stream directly sent to user terminal;
D, user terminal adopt corresponding coding/decoding method that received Media Stream is decoded and afterwards play according to said medium type for use.
A kind of method that user terminal is recorded comprises:
At first, said user terminal and media server carry out media negotiation, confirm medium type for use;
After media negotiation finishes; The Media Stream of the medium type for use that said media server reception user terminal sends over; If this media server do not support said medium type for use, be stored as the sound file behind the medium type of then said media stream transition cost media server being supported; If this media server is supported said medium type for use, then said Media Stream directly is stored as the sound file.
Said method specifically may further comprise the steps:
A, said user terminal off-hook are also dialed the fixed service number and are used sound-recording business, and Softswitch is through application server notice media server, and the medium type of this user terminal being supported through application server sends to media server;
B, media server judge whether this media server has and the user terminal media type matched, if having, then from media type matched, choose any one kind of them as medium type for use; Otherwise, from the medium type that user terminal is supported, choose any one kind of them as medium type for use; Then, media server is preserved said medium type for use, and it is sent to application server through the SIP response message, returns to user terminal by it;
After c, user terminal were received said SIP response message, according to said medium type for use, employing respective coding mode sent to media server after its Media Stream is encoded;
D, application server issue the recording order to media server; Media server application recording resource; Judge whether this media server supports said medium type for use; If do not support, be stored as the sound file behind the medium type that then will be supported from the media stream transition cost media server at user terminal; If support, then said Media Stream directly be stored as the sound file.
A kind of system that user terminal is carried out playback/recording comprises user terminal, media server;
Said media server is used for carrying out media negotiation with said user terminal, confirms medium type for use; When receiving reproduction command; Judge whether this media server supports said medium type for use, if do not support, send to user terminal after then reading sound file to be play and its media stream transition being become medium type for use; If support, then this Media Stream is directly sent to user terminal and play; When receiving the recording order; Judge whether this media server supports said medium type for use, if do not support, then receive from the Media Stream of user terminal and after converting thereof into the medium type that this media server supports and be stored as the sound file; If support, then it directly be stored as the sound file.
Said system also comprises gateway, Softswitch, application server;
Said gateway is used for when user terminal is dialed the fixed service number and used playback/sound-recording business, this fixed service number being sent to Softswitch;
Said Softswitch is used to inquire about said user terminal and whether has opened playback/sound-recording business; If it is open-minded; Then carry out playback/recording, the medium type notice media server of simultaneously said user terminal being supported through application server notice media server;
Said application server after being used to receive the notice of Softswitch, issues playback/recording order through sip message to media server, wherein carries the medium type that said user terminal is supported; Also be used for the sip response message that carries medium type for use that the receiving media server returns, wherein medium type for use is returned to user terminal through Softswitch, gateway successively.
In the said system, said media server comprises: SIP coding/decoding module, Service Processing Unit, media store retransmission unit, media resource unit, database;
Said SIP coding/decoding module; Be used to receive sip message from application server; To its decoding, issue playback/recording order according to decoded result to Service Processing Unit, the medium type of simultaneously user terminal that carries in the said sip message being supported sends to Service Processing Unit; Also be used to receive the message that Service Processing Unit returns, generate sip response message in view of the above and return to application server;
Said Service Processing Unit is used for choosing from the medium type that said user terminal is supported a kind of as medium type for use, and it is stored in this unit and returns to application server through the SIP coding/decoding module; Also be used to apply for playback/recording resource, playback/recording is realized in control media store retransmission unit and media resource unit;
Said media store retransmission unit is used to store the sound file; When playback, if medium type for use is supported in this unit, then read sound file to be play, its Media Stream is directly sent to user terminal, if do not support, then this Media Stream is transferred to the media resource unit and carry out redispatching to user terminal behind the transcoding; When recording; Reception if this media store retransmission unit is supported medium type for use, then directly is stored as the sound file with its said Media Stream from the Media Stream of user terminal; If do not support, then it is transferred to the media resource unit and carry out being stored as the sound file again behind the transcoding;
Said media resource unit is used for the media stream transition of sound file to be play is become medium type for use; Also be used for the medium type that becomes said media store retransmission unit to be supported media stream transition from the user terminal;
Said database is used to store playback/recording resource.
A kind of media server comprises: SIP coding/decoding module, Service Processing Unit, media store retransmission unit, database also comprise the media resource unit;
Said SIP coding/decoding module; Be used to receive sip message from application server; To its decoding, issue playback/recording order according to decoded result to Service Processing Unit, the medium type of simultaneously user terminal that carries in the said sip message being supported sends to Service Processing Unit; Also be used to receive the message that Service Processing Unit returns, generate sip response message in view of the above and return to application server;
Said Service Processing Unit is used for choosing from the medium type that said user terminal is supported a kind of as medium type for use, and it is stored in this unit and returns to application server through the SIP coding/decoding module; Also be used to apply for playback/recording resource, playback/recording is realized in control media store retransmission unit and media resource unit;
Said media store retransmission unit is used to store the sound file; When playback, if medium type for use is supported in this unit, then read sound file to be play, its Media Stream is directly sent to user terminal, if do not support, then this Media Stream is transferred to the media resource unit and carry out redispatching to user terminal behind the transcoding; When recording; Reception if this media store retransmission unit is supported medium type for use, then directly is stored as the sound file with its said Media Stream from the Media Stream of user terminal; If do not support, then it is transferred to the media resource unit and carry out being stored as the sound file again behind the transcoding;
Said media resource unit is used for the media stream transition of sound file to be play is become medium type for use; Also be used for the medium type that becomes said media store retransmission unit to be supported media stream transition from the user terminal;
Said database is used to store playback/recording resource.
The present invention has following beneficial effect:
Among the present invention; User terminal is before using playback/sound-recording business; Need and media server carries out media negotiation, when the medium type of being supported two sides was inconsistent, media server can be accomplished playback and recording through the conversion of medium type according to the structure of media negotiation; Thereby no matter which kind of medium type user terminal supports, media server can both guarantee this user terminal is successfully carried out playback and recording, has safeguarded user's interests.
Description of drawings
Fig. 1 is the structural representation of media server of the present invention;
Fig. 2 is a system construction drawing of the present invention;
Fig. 3 is the method flow diagram that user terminal is carried out playback of the present invention;
Fig. 4 is the method flow diagram that user terminal is recorded of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
See also Fig. 1, this figure is depicted as the structure of media server proposed by the invention, comprising: SIP coding/decoding module, Service Processing Unit, MSTU (media store retransmission unit), MRU (media resource unit), database; Wherein,
The SIP coding/decoding module; Be used to receive sip message from application server; To its decoding, issue playback/recording order according to message content to Service Processing Unit, the medium type of simultaneously user terminal that carries in the said sip message being supported sends to Service Processing Unit; Also be used to receive the message that Service Processing Unit returns, generate sip response message in view of the above and return to application server;
Service Processing Unit is used for choosing from the medium type that said user terminal is supported a kind of as medium type for use, and it is stored in this unit and returns to application server through the SIP coding/decoding module; Also be used to apply for playback/recording resource, control MSTU and MRU realize playback/recording;
MSTU is used to store the sound file; When playback, if medium type for use is supported in this unit, then read sound file to be play, its Media Stream is directly sent to user terminal, otherwise being transferred to MRU, this Media Stream carries out redispatching to user terminal behind the transcoding; When recording, receive Media Stream from user terminal, if medium type for use is supported in this unit, then said Media Stream directly is stored as the sound file, otherwise being transferred to MRU, it carries out being stored as the sound file again behind the transcoding;
MRU is used for the media stream transition of sound file to be play is become medium type for use; Also be used for the medium type that becomes MSTU to support media stream transition from the user terminal;
Database is used to store playback/recording resource.
See also Fig. 2, this figure is depicted as the complete system construction drawing that user terminal is carried out playback/recording of the present invention, comprises user terminal, gateway, SS (soft switch), APP (application server), media server.Wherein, the gateway fixed service number that is used for user terminal is dialed is informed SS; SS is used for whether having opened relevant playback/sound-recording business according to fixed service number inquiry user terminal, if open-minded, the medium type notice APP that then notifies APP and user terminal is supported; APP is mainly used in to media server and sends sip message, issues playback/recording order to media server, carries the medium type that user terminal is supported simultaneously.The process that this system realizes playback and recording will be described respectively below:
See also Fig. 3, this figure is depicted as the said system realization to the method flow that user terminal carries out playback, specifically may further comprise the steps:
301, user terminal off-hook and dial the fixed service number and use playback professional, gateway reports SS with this fixed service number; It is professional whether this user terminal of SS inquiry has opened playback, if open-minded, then through APP notice media server, and the medium type of this user terminal being supported through APP sends to media server;
302, after the SIP coding/decoding module of media server is received the sip message of APP; To this sip message decoding; Issue reproduction command according to the sip message content to Service Processing Unit, and the medium type of taking-up user terminal sends to Service Processing Unit from this sip message;
303, Service Processing Unit judges whether MSTU has and the user terminal media type matched, if having, then changes step 305 over to; Otherwise, change step 304 over to;
304, Service Processing Unit is chosen any one kind of them as medium type for use from the medium type that user terminal is supported, and changes step 306 over to;
305, Service Processing Unit is chosen any one kind of them from media type matched as medium type for use, and changes step 306 over to;
306, Service Processing Unit is preserved said medium type for use; And send it to the SIP coding/decoding module; Generate sip response message in view of the above by the SIP coding/decoding module and return to APP, return to user terminal through SS and gateway again, so far accomplish media negotiation between user terminal and the media server;
307, Service Processing Unit application playback resource; If MSTU does not support said medium type for use; After then controlling MSTU and reading sound file to be play; Its Media Stream is sent to MRU, and MRU returns to MSTU after media stream transition is become said medium type for use, sends to user terminal by it through collar extension; If MSTU supports said medium type for use, after then controlling MSTU and reading sound file to be play, its Media Stream is directly sent to user terminal through collar extension;
308, user terminal adopts corresponding coding/decoding method that received Media Stream is decoded and afterwards plays according to medium type for use.
See also Fig. 4, this figure is depicted as the method flow that the said system realization is recorded to user terminal, specifically may further comprise the steps:
401, user terminal off-hook and dial the fixed service number and use sound-recording business, gateway reports SS with this fixed service number; Whether this user terminal of SS inquiry has opened sound-recording business, if open-minded, then through APP notice media server, and the medium type of this user terminal being supported through APP sends to media server;
402, after the SIP coding/decoding module of media server is received the sip message of APP; To this sip message decoding; Issue the recording order according to the sip message content to Service Processing Unit, and the medium type of taking-up user terminal sends to Service Processing Unit from this sip message;
403, Service Processing Unit judges whether MSTU has and the user terminal media type matched, if having, then changes step 405 over to; Otherwise, change step 404 over to;
404, Service Processing Unit is chosen any one kind of them as medium type for use from the medium type that user terminal is supported, and changes step 406 over to;
405, Service Processing Unit is chosen any one kind of them from media type matched as medium type for use, and changes step 406 over to;
406, Service Processing Unit is preserved said medium type for use; And send it to the SIP coding/decoding module; Generate sip response message in view of the above by the SIP coding/decoding module and return to APP, return to user terminal through SS and gateway again, so far accomplish media negotiation between user terminal and the media server;
407, after user terminal was received said response message, according to said medium type for use, employing respective coding mode sent to media server after its Media Stream is encoded;
408, Service Processing Unit application recording resource; If MSTU does not support said medium type for use; Then control MSTU the Media Stream of received user terminal is sent to MRU, convert thereof into by MRU and transfer to MSTU again behind the medium type that MSTU supports and be stored as the sound file; If MSTU supports said medium type for use, then control MSTU and directly will be stored as the sound file from the Media Stream at user terminal.
In Recording Process; If user terminal finishes recording through button; Then no matter whether local terminal supports said medium type for use; All take storing behind the Media Stream transcoding from user terminal,, and can shield the sound of button through transcoding recording because recording can receive the influence of keypad tone.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is specified.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and the scope of technical scheme of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. the method that user terminal is carried out playback is characterized in that, comprising:
At first, said user terminal and media server carry out media negotiation, confirm medium type for use;
After media negotiation finished, said media server read sound file to be play, if the medium type and the said medium type for use of the Media Stream that obtains that reads are inconsistent, sent to user terminal after then said media stream transition being become medium type for use; If the medium type of the Media Stream that obtains that reads is consistent with said medium type for use, then said Media Stream is directly sent to user terminal and play.
2. the method that user terminal is carried out playback as claimed in claim 1 is characterized in that, this method specifically may further comprise the steps:
A, said user terminal off-hook are also dialed the fixed service number and are used playback professional, and Softswitch is through application server notice media server, and the medium type of this user terminal being supported through application server sends to media server;
B, said media server judge whether this media server has and the user terminal media type matched, if having, then from media type matched, choose any one kind of them as medium type for use; Otherwise, from the medium type that user terminal is supported, choose any one kind of them as medium type for use; Then, media server is preserved said medium type for use, and it is sent to application server through the SIP response message, returns to user terminal by it;
C, said application server issue reproduction command to media server; Media server is received back application playback resource; Judge whether this media server supports said medium type for use; If do not support, redispatch to user terminal after then reading sound file to be play and its media stream transition being become medium type for use; If support, then said Media Stream directly sent to user terminal;
D, user terminal adopt corresponding coding/decoding method that received Media Stream is decoded and afterwards play according to said medium type for use.
3. the method that user terminal is recorded is characterized in that, comprising:
At first, said user terminal and media server carry out media negotiation, confirm medium type for use;
After media negotiation finishes; The Media Stream of the medium type for use that said media server reception user terminal sends over; If this media server do not support said medium type for use, be stored as the sound file behind the medium type of then said media stream transition cost media server being supported; If this media server is supported said medium type for use, then said Media Stream directly is stored as the sound file.
4. the method that user terminal is recorded as claimed in claim 3 is characterized in that, this method specifically may further comprise the steps:
A, said user terminal off-hook are also dialed the fixed service number and are used sound-recording business, and Softswitch is through application server notice media server, and the medium type of this user terminal being supported through application server sends to media server;
B, media server judge whether this media server has and the user terminal media type matched, if having, then from media type matched, choose any one kind of them as medium type for use; Otherwise, from the medium type that user terminal is supported, choose any one kind of them as medium type for use; Then, media server is preserved said medium type for use, and it is sent to application server through the SIP response message, returns to user terminal by it;
After c, user terminal were received said SIP response message, according to said medium type for use, employing respective coding mode sent to media server after its Media Stream is encoded;
D, application server issue the recording order to media server; Media server application recording resource; Judge whether this media server supports said medium type for use; If do not support, be stored as the sound file behind the medium type that then will be supported from the media stream transition cost media server at user terminal; If support, then said Media Stream directly be stored as the sound file.
5. the system that user terminal is carried out playback/recording comprises user terminal, media server, it is characterized in that,
Said media server is used for carrying out media negotiation with said user terminal, confirms medium type for use; When receiving reproduction command; Judge whether this media server supports said medium type for use, if do not support, send to user terminal after then reading sound file to be play and its media stream transition being become medium type for use; If support, then this Media Stream is directly sent to user terminal and play; When receiving the recording order; Judge whether this media server supports said medium type for use, if do not support, then receive from the Media Stream of user terminal and after converting thereof into the medium type that this media server supports and be stored as the sound file; If support, then it directly be stored as the sound file.
6. the system that user terminal is carried out playback/recording as claimed in claim 5 is characterized in that, also comprises gateway, Softswitch, application server;
Said gateway is used for when user terminal is dialed the fixed service number and used playback/sound-recording business, this fixed service number being sent to Softswitch;
Said Softswitch is used to inquire about said user terminal and whether has opened playback/sound-recording business; If it is open-minded; Then carry out playback/recording, the medium type notice media server of simultaneously said user terminal being supported through application server notice media server;
Said application server after being used to receive the notice of Softswitch, issues playback/recording order through sip message to media server, wherein carries the medium type that said user terminal is supported; Also be used for the sip response message that carries medium type for use that the receiving media server returns, wherein medium type for use is returned to user terminal through Softswitch, gateway successively.
7. the system that user terminal is carried out playback/recording as claimed in claim 6 is characterized in that, said media server comprises: SIP coding/decoding module, Service Processing Unit, media store retransmission unit, media resource unit, database;
Said SIP coding/decoding module; Be used to receive sip message from application server; To its decoding, issue playback/recording order according to decoded result to Service Processing Unit, the medium type of simultaneously user terminal that carries in the said sip message being supported sends to Service Processing Unit; Also be used to receive the message that Service Processing Unit returns, generate sip response message in view of the above and return to application server;
Said Service Processing Unit is used for choosing from the medium type that said user terminal is supported a kind of as medium type for use, and it is stored in this unit and returns to application server through the SIP coding/decoding module; Also be used to apply for playback/recording resource, playback/recording is realized in control media store retransmission unit and media resource unit;
Said media store retransmission unit is used to store the sound file; When playback, if medium type for use is supported in this unit, then read sound file to be play, its Media Stream is directly sent to user terminal, if do not support, then this Media Stream is transferred to the media resource unit and carry out redispatching to user terminal behind the transcoding; When recording, receive Media Stream from user terminal, if this media store retransmission unit is supported medium type for use, then said Media Stream directly is stored as the sound file, if do not support, then it is transferred to the media resource unit and carry out being stored as the sound file again behind the transcoding;
Said media resource unit is used for the media stream transition of sound file to be play is become medium type for use; Also be used for the medium type that becomes said media store retransmission unit to be supported media stream transition from the user terminal;
Said database is used to store playback/recording resource.
8. media server comprises: SIP coding/decoding module, Service Processing Unit, media store retransmission unit, database, it is characterized in that, and also comprise the media resource unit;
Said SIP coding/decoding module; Be used to receive sip message from application server; To its decoding, issue playback/recording order according to decoded result to Service Processing Unit, the medium type of simultaneously user terminal that carries in the said sip message being supported sends to Service Processing Unit; Also be used to receive the message that Service Processing Unit returns, generate sip response message in view of the above and return to application server;
Said Service Processing Unit is used for choosing from the medium type that said user terminal is supported a kind of as medium type for use, and it is stored in this unit and returns to application server through the SIP coding/decoding module; Also be used to apply for playback/recording resource, playback/recording is realized in control media store retransmission unit and media resource unit;
Said media store retransmission unit is used to store the sound file; When playback, if medium type for use is supported in this unit, then read sound file to be play, its Media Stream is directly sent to user terminal, if do not support, this Media Stream is transferred to the media resource unit carry out redispatching to user terminal behind the transcoding; When recording, receive Media Stream from user terminal, if this media store retransmission unit is supported medium type for use, then said Media Stream directly is stored as the sound file, if do not support, then it is transferred to the media resource unit and carry out being stored as the sound file again behind the transcoding;
Said media resource unit is used for the media stream transition of sound file to be play is become medium type for use; Also be used for the medium type that becomes said media store retransmission unit to be supported media stream transition from the user terminal;
Said database is used to store playback/recording resource.
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| CN200810218283A CN101437047B (en) | 2008-12-09 | 2008-12-09 | Method, system and media server for playback/ sound-recording for user terminal |
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| CN200810218283A CN101437047B (en) | 2008-12-09 | 2008-12-09 | Method, system and media server for playback/ sound-recording for user terminal |
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| CN102231734B (en) * | 2011-06-22 | 2017-10-03 | 南京中兴新软件有限责任公司 | Realize audio code-transferring method, the apparatus and system from Text To Speech TTS |
| CN102420815B (en) * | 2011-11-25 | 2014-08-06 | 迈普通信技术股份有限公司 | VOIP (Voice Over Internet Protocol) recording and playing system and method |
| CN102523260A (en) * | 2011-12-02 | 2012-06-27 | 中兴通讯股份有限公司 | Media transmitting method and media transmitting device |
| CN103151041B (en) * | 2013-01-28 | 2016-02-10 | 中兴通讯股份有限公司 | A kind of implementation method of automatic speech recognition business, system and media server |
| CN103973655A (en) * | 2013-02-04 | 2014-08-06 | 中兴通讯股份有限公司 | Method and device for playing prompt tone and method and device for controlling prompt tone playing |
| CN106161407A (en) * | 2015-04-23 | 2016-11-23 | 中兴通讯股份有限公司 | Service trigger method, device, system and media server |
| CN105632541B (en) * | 2015-12-23 | 2019-01-29 | 惠州Tcl移动通信有限公司 | A kind of method, system and the mobile phone of recording mobile phone output audio |
| CN108881180B (en) * | 2018-05-30 | 2021-11-09 | 中国联合网络通信集团有限公司 | Recording method and recording system |
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| CN101217430A (en) * | 2007-01-04 | 2008-07-09 | 中兴通讯股份有限公司 | Resource controlling method and device for media server |
| CN101123824A (en) * | 2007-09-12 | 2008-02-13 | 华为技术有限公司 | Multimedia communication method and network element device |
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| CN101437047A (en) | 2009-05-20 |
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