CN104320403B - Communication means and device - Google Patents
Communication means and device Download PDFInfo
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- CN104320403B CN104320403B CN201410606943.9A CN201410606943A CN104320403B CN 104320403 B CN104320403 B CN 104320403B CN 201410606943 A CN201410606943 A CN 201410606943A CN 104320403 B CN104320403 B CN 104320403B
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- 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
- H04L65/75—Media network packet handling
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- 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
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1023—Media gateways
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- 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
- H04L65/10—Architectures or entities
- H04L65/1053—IP private branch exchange [PBX] functionality entities or arrangements
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- Computer Networks & Wireless Communication (AREA)
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- Telephonic Communication Services (AREA)
Abstract
The present invention, which provides communication means and device, this method, to be included：TG sends the first coding/decoding capability collection of calling party device support to encoding and decoding conversion equipment, and the first object encoding and decoding obtained are concentrated to return to calling party device from the first coding/decoding capability through consultation encoding and decoding conversion equipment, and the coding/decoding capability common factor of local coding/decoding capability collection and the second coding/decoding capability collection of called party instrument support that encoding and decoding conversion equipment is supported is sent to called party instrument, and the second target encoding and decoding that called party instrument is obtained from coding/decoding capability common factor through consultation return to encoding and decoding conversion equipment.The embodiment of the present invention is interacted by TG and encoding and decoding conversion equipment, during so that coding/decoding capability collection being communicated without the calling party device and called party instrument to occur simultaneously, can be by target encoding and decoding of the encoding and decoding conversion equipment based on negotiation, encoding and decoding conversion is carried out to the data flow of communicating pair transmission, to ensure to communicate successfully between calling party device and called party instrument.
Description
Technical field
The present invention relates to network communication technology field, more particularly to communication means and device.
Background technology
With the development of IP (Internet Protocol, Internet protocol) technology, increasing enterprise's deployment is based on
SIP (Session Initiation Protocol, Session initiation Protocol) IP-PBX (Private Branch
Exchange, user class interchanger).Based on this, there is SIP trunk technology, also referred to as SIP TRUNK, it passes through offer
VoIP (Voice over Internet Protocol, IP-based voice) is relayed, it is possible to achieve the IP-PBX of corporate intranet
IP-based interconnection is mutual between PSTN (Public Switched Telephone Network, PSTN)
It is logical.But in the prior art, communicated in corporate intranet by TG (Trunk Gateway, Tandem Gateway) between PSTN
When, if the code/decode type that the equipment of communicating pair is supported is different, communication failure can be caused.
The content of the invention
The present invention provides a kind of communication means and device, and code/decode type is supported to solve the equipment of existing communication both sides
When different, the problem of easily causing communication failure.
First aspect according to embodiments of the present invention, there is provided a kind of communication means, methods described is applied to be turned with encoding and decoding
On the Tandem Gateway TG of exchange device connection, methods described includes：
The first call request message is sent to the encoding and decoding conversion equipment, master is included in the first call request message
The the first coding/decoding capability collection for making method, apparatus support；
Receive local coding/decoding capability collection and first coding/decoding capability that the encoding and decoding conversion equipment is supported at it
After collection is consulted successfully, the return call request message for including the local coding/decoding capability collection of transmission；
The second call request message is sent to called party instrument, the local volume is included in the second call request message
The coding/decoding capability for the second coding/decoding capability collection that decoding capability collection is supported with the called party instrument occurs simultaneously；
The first request response message is returned to the calling party device, the volume is included in first request response message
Decoding conversion equipment concentrates the first object encoding and decoding obtained from first coding/decoding capability；And turn to the encoding and decoding
Exchange device returns to the second request response message, in second request response message comprising the called party instrument through consultation from
The second target encoding and decoding that the coding/decoding capability obtains in occuring simultaneously.
Second aspect according to embodiments of the present invention, there is provided another communication means, methods described is applied to be connected with TG
Encoding and decoding conversion equipment on, methods described includes：
The first call request message that the TG is sent is received, calling party device is included in the first call request message
The the first coding/decoding capability collection supported；
Consult in the local coding/decoding capability collection that the encoding and decoding conversion equipment is supported and the first coding/decoding capability collection
After success, sent to the TG and include the return call request message of the local coding/decoding capability collection, so that the TG is to institute
State called party instrument and send the second call request message, the local coding/decoding capability is included in the second call request message
The coding/decoding capability for the second coding/decoding capability collection that collection is supported with the called party instrument occurs simultaneously；
Concentrated from first coding/decoding capability and obtain first object encoding and decoding, so that the TG is to the calling party device
Send the first request response message for including the first object encoding and decoding；
The second request response message that the TG is sent is received, the callee is included in second request response message
The second target encoding and decoding that equipment obtains from coding/decoding capability common factor through consultation.
The third aspect according to embodiments of the present invention, there is provided a kind of communicator, described device is applied to be turned with encoding and decoding
On the TG of exchange device connection, described device includes：
Request message transmitting element, for sending the first call request message to the encoding and decoding conversion equipment, described the
The the first coding/decoding capability collection supported in one call request message comprising calling party device；
Receiving unit, the local coding/decoding capability collection supported at it for receiving the encoding and decoding conversion equipment and described the
After one coding/decoding capability collection is consulted successfully, the return call request message for including the local coding/decoding capability collection of transmission；
The request message transmitting element, it is additionally operable to send the second call request message to the called party instrument, it is described
The the second encoding and decoding energy supported in second call request message comprising the local coding/decoding capability collection with the called party instrument
The coding/decoding capability of power collection occurs simultaneously；
Response message transmitting element, for returning to the first request response message to the calling party device, described first please
Ask in response message concentrates the first object obtained to compile solution comprising the encoding and decoding conversion equipment from first coding/decoding capability
Code；And the second request response message is returned to the encoding and decoding conversion equipment, include institute in second request response message
State the second target encoding and decoding that called party instrument obtains from coding/decoding capability common factor through consultation.
Fourth aspect according to embodiments of the present invention, there is provided another communicator, described device is applied to be connected with TG
Encoding and decoding conversion equipment on, described device includes：
Receiving unit, the first call request message sent for receiving the TG, in the first call request message
The the first coding/decoding capability collection supported comprising calling party device；
Transmitting element, the local coding/decoding capability collection for being supported in the encoding and decoding conversion equipment is compiled with described first to be solved
After code capability set is consulted successfully, the return call request message for including the local coding/decoding capability collection is sent to the TG, with
The TG is sent the second call request message to the called party instrument, described is included in the second call request message
The coding/decoding capability for the second coding/decoding capability collection that ground coding/decoding capability collection is supported with the called party instrument occurs simultaneously；
Obtaining unit, for from first coding/decoding capability concentrate obtain first object encoding and decoding so that the TG to
The calling party device sends the first request response message for including the first object encoding and decoding；
The receiving unit, it is additionally operable to receive the second request response message that the TG is sent, second request-reply
The the second target encoding and decoding obtained through consultation from coding/decoding capability common factor comprising the called party instrument in message.
In the embodiment of the present invention, the first coding/decoding capability of calling party device support is sent from TG to encoding and decoding conversion equipment
Collection, and concentrate the first object encoding and decoding obtained to return to master from the first coding/decoding capability through consultation encoding and decoding conversion equipment
Method, apparatus is, and local the coding/decoding capability collection and called party instrument of the support of encoding and decoding conversion equipment are sent to called party instrument
The coding/decoding capability for the second coding/decoding capability collection supported occurs simultaneously, and called party instrument is occured simultaneously from coding/decoding capability through consultation
Second target encoding and decoding of middle acquisition return to encoding and decoding conversion equipment.Using the embodiment of the present invention, turned by TG and encoding and decoding
The interaction of exchange device so that coding/decoding capability collection is without the calling party device and called party instrument to occur simultaneously, and with encoding and decoding
The encoding and decoding conversion equipment of translation function negotiates target encoding and decoding respectively, so as to be carried out in calling party device and called party instrument
During communication, by target encoding and decoding of the encoding and decoding conversion equipment based on negotiation, encoding and decoding are carried out to the data flow of communicating pair transmission
Conversion, to ensure to communicate successfully between calling party device and called party instrument.
Brief description of the drawings
Fig. 1 is the application scenarios schematic diagram of communication means embodiment of the present invention；
Fig. 2 is one embodiment flow chart of communication means of the present invention；
Fig. 3 is another embodiment flow chart of communication means of the present invention；
Fig. 4 A are another embodiment flow charts of communication means of the present invention；
Fig. 4 B are the RTP Media Stream connection diagrams established based on Fig. 4 A embodiments；
Fig. 5 A are another embodiment flow charts of communication means of the present invention；
Fig. 5 B are the RTP Media Stream connection diagrams established based on Fig. 5 A embodiments；
Fig. 6 is a kind of hardware structure diagram of equipment where communicator of the present invention；
Fig. 7 is one embodiment block diagram of communicator of the present invention；
Fig. 8 is another embodiment block diagram of communicator of the present invention.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the embodiment of the present invention, and make of the invention real
Apply the above-mentioned purpose of example, feature and advantage can be more obvious understandable, below in conjunction with the accompanying drawings to the technology in the embodiment of the present invention
Scheme is described in further detail.
Referring to Fig. 1, for the application scenarios schematic diagram to be communicated using the embodiment of the present invention：
In Fig. 1, audio call is realized by TG (Trunk Gateway, Tandem Gateway) between corporate intranet and PSTN.Its
In, corporate intranet includes some IP terminals, and these IP terminals can be directly accessed TG, can also pass through VG (Voice
Gateway, voice gateways) access TG；Include some access TG ITSP (Internet Telephony Service in PSTN
Provider, internet telephony service provider) equipment.It should be noted that the embodiment of the present invention can be applied in TG both sides
Communicating pair there is no encoding and decoding common factor, and TG does not have any application scenarios of encoding and decoding conversion ability, is not restricted to Fig. 1 institutes
The application-specific scene to be communicated between the corporate intranet shown and PSTN, Fig. 1 are only to illustrate that one kind of the embodiment of the present invention should
Use Sample Scenario.
In the prior art, the ITSP equipment branch in code/decode type and PSTN supported due to the IP terminals in corporate intranet
The code/decode type held is different, therefore when being called between both sides, easily causes communication failure.Referring to Fig. 1, the present invention is implemented
In example, the encoding and decoding conversion equipment being connected with TG is added, when the code/decode type that IP terminals are supported and ITSP equipment are supported
Code/decode type do not occur simultaneously, TG by the encoding and decoding conversion equipment respectively with communicating pair complete coding/decoding capability consult,
The encoding and decoding negotiated are then based on, the data flow transmitted by encoding and decoding conversion equipment to communicating pair carries out encoding and decoding and turned
Change, so as to realize the communication between IP terminals and ITSP equipment.
In the embodiment of the present invention, it is assumed that the collection for the encoding and decoding that encoding and decoding conversion equipment is supported is collectively referred to as local coding/decoding capability
Collection, the collection for the encoding and decoding that the calling party device to be communicated is supported are collectively referred to as the first coding/decoding capability collection, and what is communicated is called
The collection for the encoding and decoding that method, apparatus is supported is collectively referred to as the second coding/decoding capability collection, wherein, the first coding/decoding capability collection and second compiles solution
It is not present and occurs simultaneously between code capability set, and local coding/decoding capability collection and the first coding/decoding capability collection and the second coding/decoding capability
Collection is respectively present common factor.It should be noted that in Fig. 1, when being communicated between IP terminals and ITSP equipment, the one of calling is initiated
Side is calling party device, and a called side is called party instrument.Reality with reference to specific embodiment to the present invention
Existing process is described in detail.
Referring to Fig. 2, for one embodiment flow chart of communication means of the present invention, the embodiment is retouched from TG gateway sides
State, comprise the following steps：
Step 201：The first call request message is sent to encoding and decoding conversion equipment, is included in the first call request message
First coding/decoding capability collection.
In the present embodiment, the upper IP address and port numbers that can be pre-configured with encoding and decoding conversion equipment of TG, follow-up TG can be with
Message is sent to encoding and decoding conversion equipment based on the IP address and port numbers.
In this step, calling party device can be initiated to call by sending call request message to called party instrument, and this is exhaled
The first coding/decoding capability collection that calling party device support is carried in request message is, after TG receives the call request message,
If can not consult encoding and decoding with the first coding/decoding capability collection, for example, the TG does not possess encoding and decoding conversion function, then TG can be with
Dynamic routing between encoding and decoding conversion equipment is created according to the IP address and port numbers being pre-configured with, and passes through the dynamic road
From sending the first call request message to encoding and decoding conversion equipment, the first coding/decoding capability is included in the first call request message
Collection, the volume solution used with will pass through the encoding and decoding conversion equipment with encoding and decoding conversion function to consult between calling party device
Code.
Wherein, encoding and decoding conversion can also be included in the first call request message to identify, to represent that first calling please
Message is sought to carry out the message of encoding and decoding conversion.For example, when the first call request message is specially the INVITE messages based on SIP
When, can be in the Request-Line (request row) of INVITE messages Request-URI (Uniform Resource
Identifier, universal resource identifier) field user (user) domain in add " transcoding- ".
Step 202：Receive encoding and decoding conversion equipment local coding/decoding capability collection and the first coding/decoding capability collection negotiation into
After work(, the return call request message for including local coding/decoding capability collection of transmission.
After encoding and decoding conversion equipment receives the first call request message, if encoding and decoding conversion equipment determines the first volume
Decoding capability collection and local coding/decoding capability, which exist, to occur simultaneously, then the two is consulted successfully, and local encoding and decoding conversion equipment is by local volume
Decoding capability collection is sent to TG by returning to call request message.
Return call request message in this step can also be specially the INVITE reports for carrying encoding and decoding conversion mark
Text, the particular content of INVITE messages may refer to the description in step 201.
Step 203：The second call request message is sent to called party instrument, is included in the second call request message local
The coding/decoding capability of coding/decoding capability collection and the second coding/decoding capability collection occurs simultaneously.
When TG from return obtain local coding/decoding capability collection in call request message after, the can be sent to called party instrument
Two call request messages, local coding/decoding capability collection and the second encoding and decoding energy can be comprised at least in the second call request message
The coding/decoding capability of power collection occurs simultaneously.In one implementation, local volume can directly be carried in the second call request message
Decoding capability collection, the local coding/decoding capability, which is concentrated, contains coding/decoding capability common factor；In another implementation, this
The union of local coding/decoding capability collection and the first coding/decoding capability collection can be carried in two call request messages, removal and should be concentrated
Local coding/decoding capability concentrates the encoding and decoding that the first coding/decoding capability included is concentrated, but still includes the coding/decoding capability and hand over
Collection.
Step 204：The first request response message is returned to calling party device, volume solution is included in first request response message
Code conversion equipment concentrates the first object encoding and decoding that obtain from the first coding/decoding capability, and returns to the to encoding and decoding conversion equipment
Two request response messages, obtained through consultation from coding/decoding capability common factor comprising called party instrument in second request response message
The the second target encoding and decoding obtained.
, can be successful from consulting after encoding and decoding conversion equipment receives the first call request message in step 201
First coding/decoding capability concentrates the encoding and decoding for selecting a calling party device to be supported with encoding and decoding conversion equipment as the first mesh
Encoding and decoding are marked, and first object encoding and decoding are returned into TG, TG is returned comprising the first object encoding and decoding to calling party device
First request response message, so as to complete the coding/decoding capability negotiations process between calling party device and encoding and decoding conversion equipment；
After called party instrument receives the second call request message in step 203, it can occur simultaneously from coding/decoding capability
One called party instrument of middle selection and the encoding and decoding supported of encoding and decoding conversion equipment are as the second target encoding and decoding, and by second
Target encoding and decoding return to TG, and TG is returned to encoding and decoding conversion equipment and included the second target encoding and decoding the second request-reply report
Text, so as to complete the coding/decoding capability negotiations process between called party instrument and encoding and decoding conversion equipment.
After above-mentioned coding/decoding capability negotiations process is completed, calling party device and quilt can be established using the following two kinds mode
The data flow connection between method, apparatus is, so as to transmit the data flow between communicating pair by the data flow connection：
First way：TG is established between calling party device and encoding and decoding conversion equipment compile solution based on first object respectively
The data flow connection of code；Also, TG is established between called party instrument and encoding and decoding conversion equipment compiled based on the second target respectively
The data flow connection of decoding.Follow-up TG, can be first by data stream transmitting to volume when receiving the data flow of calling party device transmission
Conversion equipment is decoded, is transmitted further to TG after completing encoding and decoding conversion by encoding and decoding conversion equipment, and callee is transferred to by TG and set
It is standby.
The second way：When also including the IP address of encoding and decoding conversion equipment in the first request response message, calling party
Equipment can connect according to the data flow based on first object encoding and decoding is directly established between the IP address and encoding and decoding conversion equipment
Connect；When also including the IP address of encoding and decoding conversion equipment in the second call request message, called party instrument can be according to the IP
The data flow connection based on the second target encoding and decoding is directly established between address and encoding and decoding conversion equipment.Follow-up calling party device
Can directly it be transmitted after completing encoding and decoding conversion by encoding and decoding conversion equipment directly by data stream transmitting to encoding and decoding conversion equipment
To called party instrument, above-mentioned data flow interaction needs not move through TG, so as to save TG resources.
As seen from the above-described embodiment, the embodiment interacting by TG and encoding and decoding conversion equipment so that coding/decoding capability
Collection is distinguished without the calling party device and called party instrument to occur simultaneously with the encoding and decoding conversion equipment with encoding and decoding conversion function
Target encoding and decoding are negotiated, so as to when calling party device and called party instrument are communicated, be based on by encoding and decoding conversion equipment
The target encoding and decoding of negotiation, encoding and decoding conversion is carried out to the data flow of communicating pair transmission, to ensure calling party device with being called
Communicated successfully between method, apparatus.
It is another embodiment flow chart of communication means of the present invention referring to Fig. 3, the embodiment is from encoding and decoding conversion equipment
Side is described, and comprises the following steps：
Step 301：The first call request message that TG is sent is received, compiles and solves comprising first in the first call request message
Code capability set.
Step 302：After local coding/decoding capability collection and the first coding/decoding capability collection are consulted successfully, sent to TG comprising this
The return call request message of ground coding/decoding capability collection, so that TG sends the second call request message to called party instrument, this
Coding/decoding capability comprising local coding/decoding capability collection and the second coding/decoding capability collection in two call request messages occurs simultaneously.
In this step, encoding and decoding conversion equipment can obtain the first call request message source IP address and port numbers (i.e.
TG IP address and port numbers), the dynamic routing between TG is created according to the source IP address and port numbers, and pass through the dynamic
It route the return call request message for being sent to TG and including local coding/decoding capability collection.
Step 303：Concentrated from the first coding/decoding capability and obtain first object encoding and decoding, so that TG is sent to calling party device
The first request response message comprising first object encoding and decoding.
Step 304：The second request response message that TG is sent is received, is set in second request response message comprising callee
Standby the second target encoding and decoding obtained through consultation from coding/decoding capability common factor.
The difference of the present embodiment and embodiment illustrated in fig. 2 is that the present embodiment is described from encoding and decoding conversion equipment side,
And Fig. 2 is described from TG sides, but the specific implementation process of the present embodiment is consistent with Fig. 2 descriptions, will not be repeated here.
In the present embodiment, encoding and decoding conversion equipment can use hardware conversion mode when carrying out encoding and decoding conversion, i.e., logical
Cross DSP (Digital Signal Processing, Digital Signal Processing) resource and carry out encoding and decoding conversion, can also use soft
Part conversion regime, i.e., encoding and decoding are carried out by CPU (Central Processing Unit, central processing unit) and memory source
Conversion, is not limited to this embodiment of the present invention, is set as long as having independently of TG, and the volume solution that can be communicated with the TG
Code conversion equipment can realize encoding and decoding conversion.
As seen from the above-described embodiment, the embodiment interacting by TG and encoding and decoding conversion equipment so that coding/decoding capability
Collection is distinguished without the calling party device and called party instrument to occur simultaneously with the encoding and decoding conversion equipment with encoding and decoding conversion function
Target encoding and decoding are negotiated, so as to when calling party device and called party instrument are communicated, be based on by encoding and decoding conversion equipment
The target encoding and decoding of negotiation, encoding and decoding conversion is carried out to the data flow of communicating pair transmission, to ensure calling party device with being called
Communicated successfully between method, apparatus.
Referring to Fig. 4 A, for another embodiment flow chart of communication means of the present invention, the net shown in embodiment combination Fig. 1
Communication process between ITSP equipment and IP device is described in detail network framework, wherein consulting to complete in coding/decoding capability
Afterwards, TG establishes data flow connection between ITSP equipment, IP terminals and encoding and decoding conversion equipment respectively：
Step 401：The INVITE that ITSP equipment sends the first coding/decoding capability collection supported comprising ITSP equipment to TG is reported
Text.
In the present embodiment, ITSP equipment is as calling party device, when it will be to the IP terminals initiation as called party instrument
During calling, the INVITE messages as call request message, first supported in the INVITE messages comprising ITSP equipment are sent
Coding/decoding capability collection, it is assumed that the first coding/decoding capability is concentrated and includes encoding and decoding { G711a, G711u }.
Step 402：The INVITE messages received are transmitted to encoding and decoding conversion equipment by TG.
Due to accessing TG in network, and it is multiple by TG to realize that the communication equipment of calling has, therefore is pre-saved on TG
The number of all communication equipments for being connected to the TG.In the present embodiment, when TG receives the INVITE messages of ITSP equipment transmission
Afterwards, the number (i.e. calling number) of the ITSP equipment carried in the INVITE messages and number (the i.e. called number of IP terminals are obtained
Code), above-mentioned calling number and called number are matched with the number pre-saved, if the match is successful, illustrate that ITSP is set
Standby and IP terminals are to access the TG, and the equipment that communication can be realized by the TG, therefore can be turned by outside encoding and decoding
Exchange device consults the coding/decoding capability with ITSP equipment and IP terminals.
The IP address and port numbers of encoding and decoding conversion equipment can be pre-configured with the present embodiment, in TG equipment, when TG will
, can be according to the IP address and port numbers being pre-configured with after calling number and called number and the numbers match success pre-saved
The dynamic routing between encoding and decoding conversion equipment is created, INVITE messages are transmitted to by encoding and decoding conversion by the dynamic routing
Equipment, wherein, TG can add " transcoding- " as encoding and decoding conversion mark in the INVITE messages, should
" transcoding- " can be carried in the user domains of the Request-Line of INVITE messages Request-URI fields.
Step 403：Encoding and decoding conversion equipment returns to the local coding/decoding capability supported comprising encoding and decoding conversion equipment to TG
The INVITE messages of collection.
Assuming that the local coding/decoding capability supported in encoding and decoding conversion equipment concentrate comprising encoding and decoding G711a, G711u,
G729, G722 ... }, when encoding and decoding conversion equipment receives INVITE messages, and encoding and decoding conversion mark is identified from the message
After knowing " transcoding- ", local coding/decoding capability collection and the first coding/decoding capability collection are held consultation, obtained after consulting successfully
Obtain during the coding/decoding capability of the two occurs simultaneously and include encoding and decoding { G711a, G711u }.
After consulting successfully, encoding and decoding conversion equipment can obtain source IP address and the port of the INVITE messages of TG transmissions
Number, the dynamic routing between TG is created according to the source IP address and port numbers, and returned to TG by the dynamic routing
INVITE messages, local coding/decoding capability collection { G711a, G711u, G729, G722 ... } is included in the INVITE messages, and
Encoding and decoding conversion identifies " transcoding- ".
Step 404：TG sends the INVITE messages for including local coding/decoding capability collection to IP terminals.
When TG receives INVITE messages, and identify that encoding and decoding conversion identifies " transcoding- " from the message
Afterwards, with can first comparing the IP of the source IP address in the INVITE messages and port numbers and the encoding and decoding conversion equipment being pre-configured with
Whether location is consistent with port numbers, sends INVITE messages to IP terminals when consistent, is solved in the INVITE messages comprising local compile
Code capability set { G711a, G711u, G729, G722 ... }.
Step 405：IP terminals return to the 200OK messages for including the second target encoding and decoding to TG.
Assuming that the second coding/decoding capability that IP terminals are supported is concentrated and includes encoding and decoding { G729, G722 }, then IP terminals receive
After the INVITE messages sent to TG, the second coding/decoding capability collection and local coding/decoding capability collection are held consultation, consulted successfully
Obtain afterwards during the coding/decoding capability of the two occurs simultaneously and include encoding and decoding { G729, G722 }.IP terminals select second from above-mentioned common factor
Target encoding and decoding, it is assumed that be encoding and decoding G729, then IP terminals return to the 200OK messages for including encoding and decoding G729 to TG.
Step 406：200OK messages comprising the second target encoding and decoding are sent to encoding and decoding conversion equipment by TG.
After the 200OK messages comprising the second target encoding and decoding G729 are sent to encoding and decoding conversion equipment by TG, encoding and decoding
Conversion equipment can record the corresponding relation between the mark of the IP terminals and encoding and decoding G729, so as to subsequently through encoding and decoding
G729 carries out encoding and decoding conversion to the data flow of IP terminal transmissions.
Step 407：Encoding and decoding conversion equipment returns to the 200OK messages for including first object encoding and decoding to TG.
Encoding and decoding conversion equipment has obtained its coding/decoding capability between ITSP equipment and occured simultaneously in step 403
{ G711a, G711u }, encoding and decoding conversion equipment select first object encoding and decoding from above-mentioned common factor, it is assumed that and it is encoding and decoding G711a,
Then encoding and decoding conversion equipment returns to the 200OK messages for including encoding and decoding G729 to TG.Also, encoding and decoding conversion equipment can be remembered
The corresponding relation between the mark of the ITSP equipment and encoding and decoding G711a is recorded, to be set subsequently through encoding and decoding G711a to ITSP
The data flow of standby transmission carries out encoding and decoding conversion.
Step 408：200OK messages comprising first object encoding and decoding are sent to ITSP equipment by TG.
TG, will after the 200OK messages comprising first object encoding and decoding G711a of encoding and decoding conversion equipment transmission are received
The 200OK messages are sent to ITSP equipment, to inform that ITSP equipment uses encoding and decoding G711a transmitting data streams.
Step 409：ITSP equipment sends ACK messages to TG.
Step 410：TG returns to ACK messages to encoding and decoding conversion equipment.
Step 411：Encoding and decoding conversion equipment returns to ACK messages to TG.
Step 412：TG returns to ACK messages to IP terminals.
Step 413：The data flow connection based on the second target encoding and decoding is established between IP terminals and TG.
Step 414：The data flow connection based on the second target encoding and decoding is established between TG and encoding and decoding conversion equipment.
Step 415：The data flow connection based on first object encoding and decoding is established between encoding and decoding conversion equipment and TG.
Step 416：The data flow connection based on first object encoding and decoding is established between TG and ITSP equipment.
Above-mentioned steps 413 create data flow to step 416 for the coding/decoding negotiation result based on step 401 to step 412
The process of connection.The data flow transmitted in the present embodiment can be specially RTP (Real-time Transport Protocol,
RTP) Media Stream, referring to Fig. 4 B, for the configuration diagram for the RTP Media Streams connection established, wherein TG respectively with
The connection of RTP Media Streams is established between ITSP equipment, IP terminals and encoding and decoding conversion equipment.
As seen from the above-described embodiment, the embodiment interacting by TG and encoding and decoding conversion equipment so that coding/decoding capability
Collection is distinguished without the calling party device and called party instrument to occur simultaneously with the encoding and decoding conversion equipment with encoding and decoding conversion function
Target encoding and decoding are negotiated, so as to when calling party device and called party instrument are communicated, be based on by encoding and decoding conversion equipment
The target encoding and decoding of negotiation, encoding and decoding conversion is carried out to the data flow of communicating pair transmission, to ensure calling party device with being called
Communicated successfully between method, apparatus.
Referring to Fig. 5 A, for another embodiment flow chart of communication means of the present invention, the net shown in embodiment combination Fig. 1
Communication process between ITSP equipment and IP device is described in detail network framework, wherein consulting to complete in coding/decoding capability
Afterwards, encoding and decoding conversion equipment establishes data flow connection with ITSP equipment and IP terminals respectively：
Step 501：The INVITE that ITSP equipment sends the first coding/decoding capability collection supported comprising ITSP equipment to TG is reported
Text.
Step 502：The INVITE messages received are transmitted to encoding and decoding conversion equipment by TG.
Step 503：Encoding and decoding conversion equipment returns to the local coding/decoding capability supported comprising encoding and decoding conversion equipment to TG
The INVITE messages of collection.
Step 504：TG sends the INVITE messages for including local coding/decoding capability collection to IP terminals.
Step 505：IP terminals return to the 200OK messages for including the second target encoding and decoding to TG.
Step 506：200OK messages comprising the second target encoding and decoding are sent to encoding and decoding conversion equipment by TG.
Step 507：Encoding and decoding conversion equipment returns to the 200OK messages for including first object encoding and decoding to TG.
Step 508：200OK messages comprising first object encoding and decoding are sent to ITSP equipment by TG.
Step 509：ITSP equipment sends ACK messages to TG.
Step 510：TG returns to ACK messages to encoding and decoding conversion equipment.
Step 511：Encoding and decoding conversion equipment returns to ACK messages to TG.
Step 512：TG returns to ACK messages to IP terminals.
Above-mentioned steps 501 are to the coding/decoding negotiation process shown in step 512, with step 401 in Fig. 4 to step 412 show
The difference of coding/decoding negotiation process be, except including local in the INVITE messages that TG is sent to IP terminals in step 504
Outside coding/decoding capability collection, also include the IP address of encoding and decoding conversion equipment, and TG is sent to ITSP equipment in step 508
In 200OK messages in addition to comprising first object encoding and decoding, the IP address of encoding and decoding conversion equipment is also included, in addition, its
His negotiations process is consistent with shown in Fig. 4, will not be repeated here.
Step 513：The data flow connection based on the second target encoding and decoding is established between IP terminals and encoding and decoding conversion equipment.
Step 514：The data flow based on first object encoding and decoding is established between encoding and decoding conversion equipment and ITSP equipment to connect
Connect.
Above-mentioned steps 513 and step 514 create data flow for the coding/decoding negotiation result based on step 501 to step 512
The process of connection.The data flow transmitted in the present embodiment can be specially RTP Media Streams, referring to Fig. 5 B, for the RTP matchmaker established
The configuration diagram of body stream connection, wherein encoding and decoding conversion equipment establish RTP Media Streams with ITSP equipment and IP terminals respectively
Connection, compared with Fig. 4 B, the RTP Media Streams transmitted between ITSP equipment and IP terminals can be without TG, therefore can enter one
Step saves TG resources；Meanwhile TG still can pass through SIP messages between encoding and decoding conversion equipment, ITSP equipment and IP terminals
Interactive controlling signaling.
Corresponding with aforementioned communication embodiment of the method, present invention also offers the embodiment of communicator.
The embodiment of communicator of the present invention can be applied in TG equipment or encoding and decoding conversion equipment.The device embodiment
It can be realized, can also be realized by way of hardware or software and hardware combining by software.Exemplified by implemented in software, as one
Device on individual logical meaning, it is by corresponding computer program in nonvolatile memory by the processor of equipment where it
Instruction reads what operation in internal memory was formed.For hardware view, as shown in fig. 6, the equipment where communicator of the present invention
A kind of hardware structure diagram, in addition to the processor shown in Fig. 6, network interface, internal memory and nonvolatile memory, implement
Equipment in example where device can also generally include other hardware, to being no longer shown specifically in this Fig. 6.
Be one embodiment block diagram of communicator of the present invention referring to Fig. 7, the device can apply with encoding and decoding conversion
On the TG of equipment connection, the device includes：Request message transmitting element 710, receiving unit 720 and response message transmitting element
730。
Wherein, the request message transmitting element 710, for sending the first call request to the encoding and decoding conversion equipment
Message, the first coding/decoding capability collection supported comprising calling party device in the first call request message；
The receiving unit 720, the local coding/decoding capability collection supported for receiving the encoding and decoding conversion equipment at it
After consulting successfully with the first coding/decoding capability collection, the return call request for including the local coding/decoding capability collection of transmission
Message；
The request message transmitting element 710, it is additionally operable to send the second call request message, institute to the called party instrument
State the second encoding and decoding supported in the second call request message comprising the local coding/decoding capability collection with the called party instrument
The coding/decoding capability of capability set occurs simultaneously；
The response message transmitting element 730, it is described for returning to the first request response message to the calling party device
Concentrate the first mesh obtained in first request response message from first coding/decoding capability comprising the encoding and decoding conversion equipment
Mark encoding and decoding；And the second request response message is returned to the encoding and decoding conversion equipment, in second request response message
The the second target encoding and decoding obtained through consultation from coding/decoding capability common factor comprising the called party instrument.
In an optional implementation：
The device can also include (not shown in Fig. 7)：Dispensing unit, for being pre-configured with the encoding and decoding conversion equipment
IP address and port numbers；
The request message transmitting element 710, can be specifically used for according to the IP address and port numbers create with it is described
Dynamic routing between encoding and decoding conversion equipment, and sent the first call request message to institute by the dynamic routing
State encoding and decoding conversion equipment.
In another optional implementation：
The encoding and decoding can also be included in the first request response message that the response message transmitting element 730 returns to turn
The IP address of exchange device, so that the calling party device establishes base according between the IP address and the encoding and decoding conversion equipment
In the data flow connection of the first object encoding and decoding；
The encoding and decoding can also be included in the second call request message that the request message transmitting element 710 is sent to turn
The IP address of exchange device, so that the called party instrument establishes base according between the IP address and the encoding and decoding conversion equipment
In the data flow connection of the second target encoding and decoding.
In another optional implementation：
Described device can also include (not shown in Fig. 7)：Establish unit, for respectively with the calling party device and institute
State and the data flow connection based on the first object encoding and decoding is established between encoding and decoding conversion equipment；And respectively with the quilt
It is data flow connection of the foundation based on the second target encoding and decoding between method, apparatus and the encoding and decoding conversion equipment.
In another optional implementation：
The request message transmitting element 710, receiving unit 720 and response message transmitting element 730 and the encoding and decoding
Encoding and decoding conversion can also be included between conversion equipment in the message of interaction to identify, the encoding and decoding conversion is identified for representing institute
Message is stated to carry out the message of encoding and decoding conversion.
Referring to Fig. 8, it is another embodiment block diagram of communicator of the present invention, the device can be applied to be connected with TG
In encoding and decoding conversion equipment, wherein, the local coding/decoding capability collection that the encoding and decoding conversion equipment is supported is set with calling party respectively
Common factor, the device be present in standby the first coding/decoding capability collection supported, and the second coding/decoding capability collection that called party instrument is supported
Including：Receiving unit 810, transmitting element 820 and obtaining unit 830.
Wherein, the receiving unit 810, the first call request message sent for receiving the TG, described first exhales
It is the first coding/decoding capability collection supported in request message comprising calling party device；
The transmitting element 820, for the local coding/decoding capability collection supported in the encoding and decoding conversion equipment with it is described
After first coding/decoding capability collection is consulted successfully, the return call request for including the local coding/decoding capability collection is sent to the TG
Message, so that the TG sends the second call request message to the called party instrument, wrapped in the second call request message
The coding/decoding capability for the second coding/decoding capability collection supported containing the local coding/decoding capability collection and the called party instrument occurs simultaneously；
The obtaining unit 830, first object encoding and decoding are obtained for being concentrated from first coding/decoding capability, so that institute
State TG and the first request response message for including the first object encoding and decoding is sent to the calling party device；
The receiving unit 810, it is additionally operable to receive the second request response message that the TG is sent, second request should
Answer the second target encoding and decoding obtained through consultation from coding/decoding capability common factor comprising the called party instrument in message.
In an optional implementation：
The transmitting element 820, source IP address and the port for obtaining the first call request message can be specifically used for
Number, create the dynamic routing between the TG according to the source IP address and port numbers, and by the dynamic routing to institute
State TG and send the return call request message for including the local coding/decoding capability collection.
In another optional implementation：
The device can also include (not shown in Fig. 8)：Establish unit, for when in first request response message also
During IP address comprising the encoding and decoding conversion equipment, established with the calling party device according to the IP address based on described the
The data flow connection of one target encoding and decoding；And when also being set in the second call request message comprising the encoding and decoding conversion
During standby IP address, the data flow based on the second target encoding and decoding is established according to the IP address with searching book called party instrument
Connection.
The function of unit and the implementation process of effect specifically refer to and step are corresponded in the above method in said apparatus
Implementation process, it will not be repeated here.
For device embodiment, because it corresponds essentially to embodiment of the method, so related part is real referring to method
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described be used as separating component
The unit of explanation can be or may not be physically separate, can be as the part that unit is shown or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Need to select some or all of module therein to realize the purpose of the present invention program.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and implement.
As seen from the above-described embodiment, the embodiment of the present invention sends what calling party device was supported from TG to encoding and decoding conversion equipment
First coding/decoding capability collection, and encoding and decoding conversion equipment is concentrated to the first object obtained from the first coding/decoding capability through consultation
Encoding and decoding return to calling party device, and the local coding/decoding capability of encoding and decoding conversion equipment support is sent to called party instrument
Collection with called party instrument support the second coding/decoding capability collection coding/decoding capability occur simultaneously, and by called party instrument through consultation from
The second target encoding and decoding that coding/decoding capability obtains in occuring simultaneously return to encoding and decoding conversion equipment.Using the embodiment of the present invention, lead to
Cross interacting for TG and encoding and decoding conversion equipment so that coding/decoding capability collection is set without the calling party device and callee to occur simultaneously
It is standby, target encoding and decoding are negotiated respectively with the encoding and decoding conversion equipment with encoding and decoding conversion function, so as in calling party device
When being communicated with called party instrument, by target encoding and decoding of the encoding and decoding conversion equipment based on negotiation, to communicating pair transmission
Data flow carries out encoding and decoding conversion, to ensure to communicate successfully between calling party device and called party instrument.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including undocumented common knowledges in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (14)
1. a kind of communication means, it is characterised in that methods described is applied in the Tandem Gateway TG being connected with encoding and decoding conversion equipment
On, methods described includes：
The first call request message is sent to the encoding and decoding conversion equipment, calling party is included in the first call request message
The first coding/decoding capability collection that equipment is supported, the first call request message also identifies comprising encoding and decoding conversion, to represent
State the message that the first call request message is pending encoding and decoding conversion；
The encoding and decoding conversion equipment is received to assist with the first coding/decoding capability collection in its local coding/decoding capability collection supported
After business's success, the return call request message for including the local coding/decoding capability collection of transmission, the return call request report
Text carries the encoding and decoding conversion mark, to represent report of the return call request message as pending encoding and decoding conversion
Text；
The second call request message is sent to called party instrument, the local encoding and decoding are included in the second call request message
The coding/decoding capability for the second coding/decoding capability collection that capability set is supported with the called party instrument occurs simultaneously；
The first request response message is returned to the calling party device, the encoding and decoding are included in first request response message
Conversion equipment concentrates the first object encoding and decoding obtained from first coding/decoding capability；And set to the encoding and decoding conversion
It is standby to return to the second request response message, the called party instrument is included in second request response message through consultation from described
The second target encoding and decoding that coding/decoding capability obtains in occuring simultaneously.
2. according to the method for claim 1, it is characterised in that described to send the first calling to the encoding and decoding conversion equipment
Before request message, in addition to：It is pre-configured with the internet protocol address and port numbers of the encoding and decoding conversion equipment；
It is described to include to the encoding and decoding conversion equipment the first call request message of transmission：
The dynamic routing between the encoding and decoding conversion equipment is created according to the IP address and port numbers；
The first call request message is sent to the encoding and decoding conversion equipment by the dynamic routing.
3. according to the method for claim 2, it is characterised in that
The IP address of the encoding and decoding conversion equipment is also included in first request response message, so that the calling party device
According to data flow connection of the foundation based on the first object encoding and decoding between the IP address and the encoding and decoding conversion equipment；
The IP address of the encoding and decoding conversion equipment is also included in the second call request message, so that the called party instrument
According to data flow connection of the foundation based on the second target encoding and decoding between the IP address and the encoding and decoding conversion equipment.
4. according to the method for claim 1, it is characterised in that methods described also includes：
Established respectively between the calling party device and the encoding and decoding conversion equipment based on the first object encoding and decoding
Data flow connection；
Established respectively between the called party instrument and the encoding and decoding conversion equipment based on the second target encoding and decoding
Data flow connection.
5. a kind of communication means, it is characterised in that methods described is applied in the encoding and decoding conversion equipment being connected with TG, the side
Method includes：
The first call request message that the TG is sent is received, is supported in the first call request message comprising calling party device
The first coding/decoding capability collection, the first call request message also comprising encoding and decoding conversion identify, to represent that described first exhales
It is the message that request message is pending encoding and decoding conversion；
Consult successfully with the first coding/decoding capability collection in the local coding/decoding capability collection that the encoding and decoding conversion equipment is supported
Afterwards, sent to the TG and include the return call request message of the local coding/decoding capability collection, so that the TG is to callee
Equipment sends the second call request message, in the second call request message comprising the local coding/decoding capability collection with it is described
The coding/decoding capability for the second coding/decoding capability collection that called party instrument is supported occurs simultaneously, and the return call request message carries institute
Encoding and decoding conversion mark is stated, to represent message of the return call request message as pending encoding and decoding conversion；
Concentrated from first coding/decoding capability and obtain first object encoding and decoding, so that the TG is sent to the calling party device
Include the first request response message of the first object encoding and decoding；
The second request response message that the TG is sent is received, the called party instrument is included in second request response message
The the second target encoding and decoding obtained through consultation from coding/decoding capability common factor.
6. according to the method for claim 5, it is characterised in that described sent to the TG includes the local encoding and decoding energy
The return call request message of power collection includes：
Obtain the source IP address and port numbers of the first call request message；
The dynamic routing between the TG is created according to the source IP address and port numbers；
The return call request message for including the local coding/decoding capability collection is sent to the TG by the dynamic routing.
7. the method according to claim 5 or 6, it is characterised in that methods described also includes：
When also including the IP address of the encoding and decoding conversion equipment in first request response message, set with the calling party
It is standby that the data flow connection based on the first object encoding and decoding is established according to the IP address；
When also including the IP address of the encoding and decoding conversion equipment in the second call request message, set with the callee
It is standby that the data flow connection based on the second target encoding and decoding is established according to the IP address.
8. a kind of communicator, it is characterised in that described device is applied on the TG being connected with encoding and decoding conversion equipment, the dress
Put including：
Request message transmitting element, for sending the first call request message to the encoding and decoding conversion equipment, described first exhales
The the first coding/decoding capability collection supported in request message comprising calling party device is, the first call request message is also comprising volume
Switch signs are decoded, to represent message of the first call request message as pending encoding and decoding conversion；
Receiving unit, compiled for receiving the encoding and decoding conversion equipment in its local coding/decoding capability collection supported with described first
After decoding capability collection is consulted successfully, the return call request message for including the local coding/decoding capability collection of transmission is described to return
Callback carries the encoding and decoding conversion request message and identified, to represent that the return call request message solves as pending compile
The message of code conversion；
The request message transmitting element, it is additionally operable to send the second call request message, second calling to called party instrument
The volume for the second coding/decoding capability collection supported in request message comprising the local coding/decoding capability collection with the called party instrument
Decoding capability occurs simultaneously；
Response message transmitting element, for returning to the first request response message to the calling party device, first request should
Answer the first object encoding and decoding concentrated and obtained from first coding/decoding capability comprising the encoding and decoding conversion equipment in message；With
And the second request response message is returned to the encoding and decoding conversion equipment, include the quilt in second request response message
The the second target encoding and decoding for making method, apparatus be obtained through consultation from coding/decoding capability common factor.
9. device according to claim 8, it is characterised in that described device also includes：
Dispensing unit, for being pre-configured with the IP address and port numbers of the encoding and decoding conversion equipment；
The request message transmitting element, set specifically for being created according to the IP address and port numbers with the encoding and decoding conversion
Dynamic routing between standby, and sent the first call request message to the encoding and decoding conversion by the dynamic routing
Equipment.
10. device according to claim 9, it is characterised in that
The IP of the encoding and decoding conversion equipment is also included in the first request response message that the response message transmitting element returns
Address, so that the calling party device is established based on described first according between the IP address and the encoding and decoding conversion equipment
The data flow connection of target encoding and decoding；
The IP of the encoding and decoding conversion equipment is also included in the second call request message that the request message transmitting element is sent
Address, so that the called party instrument is established based on described second according between the IP address and the encoding and decoding conversion equipment
The data flow connection of target encoding and decoding.
11. device according to claim 8, it is characterised in that described device also includes：
Unit is established, described first is based on for being established respectively between the calling party device and the encoding and decoding conversion equipment
The data flow connection of target encoding and decoding；And establish respectively between the called party instrument and the encoding and decoding conversion equipment
Data flow connection based on the second target encoding and decoding.
12. a kind of communicator, it is characterised in that described device is applied in the encoding and decoding conversion equipment being connected with TG, described
Device includes：
Receiving unit, for receiving the first call request message of the TG transmissions, included in the first call request message
The first coding/decoding capability collection that calling party device is supported, the first call request message also identify comprising encoding and decoding conversion, with
Represent the message that the first call request message is pending encoding and decoding conversion；
Transmitting element, for local coding/decoding capability collection and the first encoding and decoding energy supported in the encoding and decoding conversion equipment
After power collection is consulted successfully, the return call request message for including the local coding/decoding capability collection is sent to the TG, so that institute
State TG and send the second call request message to called party instrument, the local encoding and decoding are included in the second call request message
The coding/decoding capability for the second coding/decoding capability collection that capability set is supported with the called party instrument occurs simultaneously, the return call request
Message carries the encoding and decoding conversion mark, to represent report of the return call request message as pending encoding and decoding conversion
Text；
Obtaining unit, first object encoding and decoding are obtained for being concentrated from first coding/decoding capability, so that the TG is to described
Calling party device sends the first request response message for including the first object encoding and decoding；
The receiving unit, it is additionally operable to receive the second request response message that the TG is sent, second request response message
In include the called party instrument the second target encoding and decoding for obtaining from coding/decoding capability common factor through consultation.
13. device according to claim 12, it is characterised in that the transmitting element, specifically for obtaining described first
The source IP address and port numbers of call request message, the dynamic between the TG is created according to the source IP address and port numbers
Route, and the return call request report for including the local coding/decoding capability collection is sent to the TG by the dynamic routing
Text.
14. device according to claim 12, it is characterised in that described device also includes：
Establish unit, for when in first request response message also include the encoding and decoding conversion equipment IP address when,
The data flow connection based on the first object encoding and decoding is established according to the IP address with the calling party device；And when
In the second call request message also include the encoding and decoding conversion equipment IP address when, with the called party instrument according to
The IP address establishes the data flow connection based on the second target encoding and decoding.
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| CN105765937B (en) * | 2014-06-30 | 2019-11-08 | 北京新媒传信科技有限公司 | A kind of communication means and signal server |
| CA3016848C (en) * | 2016-03-28 | 2024-01-09 | Panasonic Intellectual Property Corporation Of America | User equipment, base station and codec mode switching method |
| CN109429068B (en) * | 2017-09-01 | 2020-09-29 | 成都鼎桥通信技术有限公司 | Video coding and decoding service processing method and device |
| CN110662186B (en) * | 2018-06-29 | 2022-03-04 | 中国电信股份有限公司 | Media negotiation method, media gateway control apparatus, and computer-readable storage medium |
| CN112291568B (en) * | 2020-11-13 | 2022-12-20 | Oppo广东移动通信有限公司 | Data processing method, device, medium, network access equipment and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052154A (en) * | 2007-05-11 | 2007-10-10 | 华为技术有限公司 | IP multimedia sub system and its coding and decoding switching control method |
| CN101616157A (en) * | 2009-07-21 | 2009-12-30 | 中兴通讯股份有限公司 | A kind of coding-decoding switch system and method based on media gateway device |
| CN102025715A (en) * | 2010-05-17 | 2011-04-20 | 华中科技大学 | SIP (Session Initiation Protocol) protocol-based multimedia network communication method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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-
2014
- 2014-10-31 CN CN201410606943.9A patent/CN104320403B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052154A (en) * | 2007-05-11 | 2007-10-10 | 华为技术有限公司 | IP multimedia sub system and its coding and decoding switching control method |
| CN101616157A (en) * | 2009-07-21 | 2009-12-30 | 中兴通讯股份有限公司 | A kind of coding-decoding switch system and method based on media gateway device |
| CN102025715A (en) * | 2010-05-17 | 2011-04-20 | 华中科技大学 | SIP (Session Initiation Protocol) protocol-based multimedia network communication method |
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