CN101557398A - Method for establishing transparent channel and SIP terminal and SIP server - Google Patents
Method for establishing transparent channel and SIP terminal and SIP server Download PDFInfo
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- CN101557398A CN101557398A CNA2009100847638A CN200910084763A CN101557398A CN 101557398 A CN101557398 A CN 101557398A CN A2009100847638 A CNA2009100847638 A CN A2009100847638A CN 200910084763 A CN200910084763 A CN 200910084763A CN 101557398 A CN101557398 A CN 101557398A
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Abstract
The invention discloses a method for establishing a transparent channel, and an SIP terminal and an SIP server. The method comprises the following steps of: determining a transparent channel mark when a first SIP terminal wants to establish a transparent channel with a second SIP terminal; sending a request for establishing the transparent channel to the SIP server, wherein the request carries both the transparent channel mark and a second SIP terminal mark; adopting the SIP server to transmit the request to the second SIP terminal and preserve the mapping relations between the transparent channel mark and the first SIP terminal mark and also between the transparent channel mark and the second SIP terminal mark; adopting the second SIP terminal to receive the request and return response of establishing the transparent channel to the SIP server; utilizing the SIP server to transmit the response to the first SIP terminal; and establishing the transparent channel between the first SIP terminal and the second SIP terminal after the first SIP terminal receives the response. The invention realizes the establishment of a point-to-point transparent channel.
Description
Technical field
The present invention relates to technical field of data transmission, be specifically related to method for establishing transparent channel and sip terminal, sip server.
Background technology
In the multi-media network with conversation initialized protocol (SIP, Session Initiation Protocol) protocol construction, Session Initiation Protocol has been stipulated the control signaling of session and the transport process of medium.But in addition, in using, multimedia service also have the transmission of some data except that control signaling and medium to need, such as: between the alarm host machine of the alarm of supervisory control system front end and supervisory control system rear end, need the non-medium class of the non-SIP signaling of transmission data usually, at present, adopt transparent channel to bear the work of front end alarm serial ports and alarm host machine serial ports by IP network transmission data.
Fig. 1 has provided the schematic diagram of transparent channel, and shown in the part of the solid line among Fig. 1, it is mutual to carry out signaling control by Session Initiation Protocol between sip terminal in the SIP network and the sip server.Shown in the dotted portion among Fig. 1, between two sip terminals if will transmit data, these data refer to non-SIP signaling, non-audio-video frequency media class data as: 2 system data from serial ports is gathered then need to set up earlier a data passage.Can transmit the non-SIP signaling of any kind, non-audio-video frequency media class data in this data channel, but not have correlation between the foundation of passage, demolishing process and the data type that will in this passage, transmit.In other words, the type of the data of channel transfer is transparent for passage itself, so this data-transmission channel is called " transparent channel ".
Though prior art has provided the notion of transparent channel, do not provide the process of setting up of transparent channel; In addition, existing transparent channel is only limited to the transmission of single-point to single-point, and in actual networking is used, can have the situation of mutual communication between a plurality of front ends and a plurality of rear end, does not also provide transparent channel at present and realizes the solution of multiple spot to multicast communication.
Summary of the invention
The invention provides method for establishing transparent channel and sip terminal, sip server, to realize the foundation of transparent channel.
Technical scheme of the present invention is achieved in that
A kind of method for establishing transparent channel, this method comprises:
First sip terminal is wanted to set up transparent channel with second sip terminal, determines transparent channel sign, this transparent channel sign and second sip terminal sign is carried at transparent channel sets up and send to sip server in asking; Sip server is transmitted to second sip terminal with this request, and preserves the mapping relations of transparent channel sign between identifying with first sip terminal sign, second sip terminal;
Second sip terminal receives described request, returns transparent channel to sip server and sets up response, and sip server is transmitted to first sip terminal with this response, and first sip terminal receives described response, and the transparent channel between first and second sip terminal is set up.
Transparent channel between described first sip terminal and second sip terminal further comprises after setting up:
First sip terminal is determined and will be sent data to second sip terminal, these data and described transparent channel sign are sent to sip server, sip server is according to described transparent channel sign and first sip terminal sign, in described mapping relations, find second sip terminal sign, send the data to second sip terminal;
Perhaps, second sip terminal is determined and will be sent data to first sip terminal, these data and described transparent channel sign are sent to sip server, sip server is according to described transparent channel sign and second sip terminal sign, in described mapping relations, find first sip terminal sign, send the data to first sip terminal.
Described method further comprises:
First sip terminal is wanted Three S's IP terminal is added in the transparent channel of having set up, this transparent channel of having set up sign and Three S's IP terminal iidentification are carried at transparent channel to be set up and sends to sip server in asking, sip server is transmitted to Three S's IP terminal with this request, and preserves the mapping relations between this transparent channel of having set up sign and first and third sip terminal sign;
Three S's IP terminal receives described request, returns transparent channel to sip server and sets up response, and sip server is transmitted to first sip terminal with this response, and the transparent channel between first and third sip terminal is set up.
Transparent channel between described first and third sip terminal further comprises after setting up:
First sip terminal sends to sip server with data and the described transparent channel sign of having set up, sip server is searched and the described transparent channel sign of having set up and all corresponding sip terminal signs of first sip terminal sign, number according to all sip terminal signs that find, copy data sends to the sip terminal that all find respectively with data.
Transparent channel between described first and second sip terminal further comprises after setting up:
First sip terminal determine to discharge and second sip terminal between transparent channel, transparent channel sign and second sip terminal sign are carried at transparent channel to be discharged and sends to sip server in asking, sip server is transmitted to second sip terminal with this request, second sip terminal receives this request, and return transparent channel to sip server and discharge response, sip server receives this response, deletes the mapping relations of the transparent channel sign of self preserving between identifying with first and second sip terminal;
Perhaps, second sip terminal determine to discharge and first sip terminal between transparent channel, transparent channel sign and first sip terminal sign are carried at transparent channel to be discharged and sends to sip server in asking, sip server is transmitted to first sip terminal with this request, first sip terminal receives this request, and return transparent channel to sip server and discharge response, sip server receives this response, deletes the transparent channel sign of self preserving and first and second sip terminal mapping relations between identifying.
Transparent channel between described first and third sip terminal further comprises after setting up:
First sip terminal determines to discharge the transparent channel with Three S's IP terminal room, transparent channel sign and Three S's IP terminal iidentification are carried at transparent channel to be discharged and sends to sip server in asking, sip server is transmitted to Three S's IP terminal with this request, Three S's IP terminal receives this request, and return transparent channel to sip server and discharge response, sip server receives this response, deletes the mapping relations of the transparent channel sign of self preserving between identifying with first and third sip terminal;
Perhaps, Three S's IP terminal determine to discharge and first sip terminal between transparent channel, transparent channel sign and first sip terminal sign are carried at transparent channel to be discharged and sends to sip server in asking, sip server is transmitted to first sip terminal with this request, first sip terminal receives this request, and return transparent channel to sip server and discharge response, sip server receives this response, deletes the transparent channel sign of self preserving and the first and third sip terminal mapping relations between identifying.
Described data are non-SIP signaling, non-audio-video frequency media data.
A kind of sip terminal, this sip terminal comprises:
Passage is set up request module, wants to set up transparent channel with second sip terminal, determines transparent channel sign, this transparent channel sign and second sip terminal sign is carried at transparent channel sets up and send to sip server in asking;
Passage is set up the affirmation module, receives the transparent channel foundation response of carrying the transparent channel sign that sip server is sent, and determines transparent channel foundation.
Described sip terminal further comprises:
Data transmission module is determined and will be sent data to second sip terminal, and the sign of the transparent channel between these data and this sip terminal and second sip terminal is sent to sip server.
Described sip terminal further comprises:
The passage module that joins request is wanted Three S's IP terminal is added in the transparent channel of having set up, this transparent channel of having set up sign and Three S's IP terminal iidentification is carried at transparent channel sets up and send to sip server in asking.
Described sip terminal further comprises:
Passage discharges request module, want to discharge and other sip terminal between transparent channel, this transparent channel sign and this other sip terminal sign are carried at transparent channel discharge in the request and send to sip server.
A kind of sip server, this sip server comprises:
Passage is set up processing module, receive the transparent channel foundation request of carrying transparent channel sign and second sip terminal sign that first sip terminal is sent, this request is transmitted to second sip terminal, and in the channel information logging modle mapping relations between record transparent channel sign and first sip terminal sign, second sip terminal sign, the transparent channel that second sip terminal is returned is set up to respond and is transmitted to first sip terminal;
The channel information logging modle is preserved the mapping relations that the transparent channel of having set up identifies and the sip terminal at passage two ends identifies.
Described sip server further comprises:
The data transmission and processing module, receive transparent channel sign and data that first sip terminal is sent, in the channel information logging modle, search all sip terminal signs corresponding with transparent channel sign and first sip terminal sign, number according to all sip terminal signs that find, copy data sends to the sip terminal that each finds respectively with data.
Described sip server further comprises:
Passage discharges processing module, the transparent channel that receives the sip terminal sign of carrying the transparent channel sign and will discharge that first sip terminal sends discharges request, this request is transmitted to the sip terminal that will discharge, the transparent channel that the sip terminal that reception will discharge returns discharges response, the mapping relations between the transparent channel sign that writes down in the deletion channel information logging modle and first terminal iidentification, the sip terminal that will discharge identify.
Compared with prior art, among the present invention, when first sip terminal wants to set up transparent channel with second sip terminal, determine a transparent channel sign, this transparent channel sign and second sip terminal sign are carried at transparent channel set up and send to sip server in asking; Sip server is transmitted to second sip terminal with this request, and preserves the mapping relations of transparent channel sign between identifying with first sip terminal sign, second sip terminal; Second sip terminal receives described request, returns transparent channel to sip server and sets up response, and sip server is transmitted to first sip terminal with this response, and first sip terminal receives described response, and the transparent channel between first and second sip terminal is set up.The present invention has realized the foundation of the transparent channel of point-to-point.
In addition, among the present invention, the restriction that the process that transparent channel is set up is not subjected to the Network Transmission mode directly utilizes Session Initiation Protocol in the SIP development environment, additionally do not use other agreement, as long as terminal supports that SIP just can carry out transfer of data, reduces development and maintenance cost; Utilize SIP mature protocol and recognised standard, improve reliability of data transmission.
In addition, in the embodiment of the invention, when first sip terminal is wanted to add Three S's IP terminal in the transparent channel of having set up, this transparent channel of having set up sign and Three S's IP terminal iidentification are carried at transparent channel to be set up and sends to sip server in asking, sip server is transmitted to Three S's IP terminal with this request, and preserves the mapping relations between this transparent channel of having set up sign and first and third sip terminal sign; Three S's IP terminal receives described request, returns transparent channel to sip server and sets up response, and sip server is transmitted to first sip terminal with this response, and the transparent channel between first and third sip terminal is set up.The embodiment of the invention has realized putting the foundation of the transparent channel of multiple spot.And data are duplicated distribution on sip server, have reduced the burden of terminal.
Description of drawings
Fig. 1 is the schematic diagram of existing transparent channel;
The flow chart of the transparent channel of setting up point-to-point that Fig. 2 provides for the embodiment of the invention;
The flow chart of the transparent channel of multiple spot is put in the foundation that Fig. 3 provides for the embodiment of the invention;
The flow chart of the release transparent channel that Fig. 4 provides for the embodiment of the invention;
Fig. 5 sets up system schematic for the transparent channel that the embodiment of the invention provides;
The structural representation of the sip terminal that Fig. 6 provides for the embodiment of the invention;
The structural representation of the sip server that Fig. 7 provides for the embodiment of the invention.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The flow chart of the transparent channel of setting up point-to-point that Fig. 2 provides for the embodiment of the invention, as shown in Figure 2, its concrete steps are as follows:
Step 201: first sip terminal is wanted to set up transparent channel with second sip terminal, according to preset rule, determine a transparent channel sign, be made as transparent channel sign 1, send transparent channel to sip server and set up request message, this message is carried the second sip terminal address and transparent channel sign 1.
In order to guarantee the transparent channel unique mark, can set: transparent channel sign comprises to be initiated transparent channel and sets up the IP address of sip terminal of request or device number etc.
Step 202:SIP server receives transparent channel and sets up request message, according to the second sip terminal address in this message, transparent channel is set up request message be transmitted to second sip terminal, preserve the mapping relations between transparent channel sign 1 and first and second sip terminal address simultaneously.
Usually, what preserve on first sip terminal is the number of second sip terminal, at this moment, it is the second sip terminal number that the transparent channel that first sip terminal sends is set up what carry in the request message, and sip server can be according to this second sip terminal number inquiry to the second sip terminal address.
Step 203: second sip terminal receives transparent channel and sets up request message, returns to sip server and carries the successfully 200ok message of indication, carries transparent channel sign 1 in this message.
When following situation took place, transparent channel was set up and can be failed:
One, the transparent channel that will set up exists;
Two, sip terminal is not supported transparent channel.
When transparent channel was set up failure, second sip terminal can carry the failure indication in 200ok message, perhaps returned 487 responses to sip server.
Step 204:SIP server receives and carries the successfully 200ok message of indication, according to the sign of the transparent channel in the message 1 and second sip terminal address, find the first sip terminal address, give first sip terminal with forwards, first sip terminal receives message, and the transparent channel between first and second sip terminal is set up.
If sip server is found 200ok message and carried the failure indication, then can delete the transparent channel sign 1 of preservation in the step 202 and the mapping relations between first and second sip terminal address.
Step 205: first sip terminal sends data transmission message to sip server, carries data and transparent channel sign 1 in this message.
Step 206:SIP server receives data transmission message, according to the sign of the transparent channel in the message 1 and first sip terminal address, finds the second sip terminal address, and data transmission message is transmitted to second sip terminal.
Step 207: second sip terminal receives data transmission message, returns 200ok message to sip server, and this message is carried transparent channel sign 1.
Step 208:SIP server receives 200ok message, according to the sign of the transparent channel in the message 1 and second sip terminal address, finds the first sip terminal address, gives first sip terminal with forwards.
Be example still below with first sip terminal in embodiment illustrated in fig. 2, if first sip terminal after setting up transparent channel with second sip terminal, is also wanted Three S's IP terminal is added this transparent channel, the point of promptly realizing transparent channel is to multicast communication, at this moment, it is implemented as follows:
The flow chart of the transparent channel of multiple spot is put in the foundation that Fig. 3 provides for the embodiment of the invention, and as shown in Figure 3, its concrete steps are as follows:
Step 301: first sip terminal is after setting up transparent channel with second sip terminal, want Three S's IP terminal is added this transparent channel, send transparent channel to sip server and set up request message, this message is carried Three S's IP terminal address, and the transparent channel that carries simultaneously between first and second sip terminal identifies promptly: transparent channel sign 1.
Step 302:SIP server receives transparent channel and sets up request message, according to the Three S's IP terminal address in this message, gives Three S's IP terminal with forwards, preserves the mapping relations of transparent channel sign 1 and first and third sip terminal address simultaneously.
Step 303: Three S's IP terminal receives transparent channel and sets up request message, returns to sip server and carries the successfully 200ok message of indication, carries transparent channel sign 1 in this message.
Step 304:SIP server receives and carries the successfully 200ok message of indication, according to sign 1 of the transparent channel in the message and Three S's IP terminal address, find the first sip terminal address, give first sip terminal with forwards, first sip terminal receives message, and the transparent channel between first and third sip terminal is set up.
Step 305: first sip terminal sends data transmission message, carries data and transparent channel sign 1 in this message.
Step 306:SIP server receives data transmission message, according to the sign of the transparent channel in the message 1 and first sip terminal address, find second and third sip terminal address, then from data transmission message, take out data, duplicate this data, data carry is transmitted to second and third sip terminal respectively in data transmission message.
Step 307: second and third sip terminal receives data transmission message, return 200ok message to sip server respectively, sip server receives 200ok message, according to the transparent channel in message sign 1, second or Three S's IP terminal address, find the first sip terminal address, give first sip terminal forwards.
It is to be noted, a sip terminal can be according to self application need, set up many transparent channels, for example: the data of transmission are identical between sip terminal 1 and the sip terminal 2,3, identical with the data of transmission between the sip terminal 4,5, then sip terminal 1 can be set up two transparent channels: the opposite end of a transparent channel is a sip terminal 2,3, and the opposite end of another transparent channel is a sip terminal 4,5.
Fig. 2,3 illustrated embodiments provide be first sip terminal and second and third sip terminal set up point-to-point, o'clock to the specific implementation of 2 o'clock transparent channel, point to the transparent channel of multi-point set up process can by Fig. 2,3 illustrated embodiments directly, the reasoning of beyond all doubt ground obtains, do not repeat them here.
After setting up transparent channel between a sip terminal and a plurality of sip terminal, if and the transfer of data between one of them sip terminal finishes, then need to discharge and this sip terminal between transparent channel, below be example with first and third sip terminal in Fig. 2,3 illustrated embodiments, the dispose procedure of transparent channel is described:
The flow chart of the release transparent channel that Fig. 4 provides for the embodiment of the invention, as shown in Figure 4, its concrete steps are as follows:
Step 401: first sip terminal determines to discharge the transparent channel with Three S's IP terminal room, sends transparent channel to sip server and discharges request message, and this message is carried transparent channel sign 1 and Three S's IP terminal address.
In actual applications, the restriction that the direction that transparent channel discharges is not set up direction, any end of transparent channel all can send transparent channel and discharge request.
Step 402:SIP server receives transparent channel and discharges request message, according to the Three S's IP terminal address in the message, transmits this message to Three S's IP terminal.
Step 403: Three S's IP terminal receives transparent channel and discharges request message, returns to sip server and carries the successfully 200ok message of indication.
Step 404:SIP server receives and carries the successfully 200ok message of indication, according to sign 1 of the transparent channel in the message and Three S's IP terminal address, find the mapping relations of transparent channel sign 1 and first and third sip terminal address, delete this mapping relations, and give first sip terminal forwards.
Because transparent channel two ends may have a plurality of sip terminals, when a sip terminal discharged from this transparent channel, if also there is other sip terminal in these transparent channel two ends, then this transparent channel still existed, and still continues as this other sip terminal service.
Fig. 5 sets up system schematic for the transparent channel that the embodiment of the invention provides, and as shown in Figure 5, it mainly comprises: first sip terminal 51, sip server 52 and second sip terminal 53, wherein:
First sip terminal 51: want to set up transparent channel, determine transparent channel sign, this transparent channel sign and second sip terminal sign are carried at transparent channel set up and send to sip server 52 in asking with second sip terminal 53; Receive the transparent channel foundation response of carrying the transparent channel sign that sip server 52 is sent, determine that the transparent channel between first and second sip terminal is set up.
Sip server 52: the transparent channel that first sip terminal 51 the is sent request of setting up is transmitted to second sip terminal 53, and preserves the mapping relations of transparent channel sign between identifying with first sip terminal sign, second sip terminal; The transparent channel foundation response that second sip terminal 53 is returned is transmitted to first sip terminal 51.
Second sip terminal 53: receive the transparent channel foundation request of carrying the transparent channel sign that sip server 52 is sent, return the transparent channel that carries the transparent channel sign to sip server 52 and set up response.
As shown in Figure 6, first sip terminal 51 can comprise: passage is set up request module 511, passage and is set up and confirm that join request module 513, data transmission module 514 and passage of module 512, passage discharges request module 515, wherein:
Passage is set up request module 511: want to set up transparent channel with second sip terminal 53, determine a transparent channel sign, set up to confirm the mapping relations between this transparent channel sign of record and second sip terminal sign in the module 512 at passage, this transparent channel sign and second sip terminal sign are carried at transparent channel foundation send to sip server 52 in asking.
Passage is set up and confirmed module 512: transparent channel sign that record has been set up and the mapping relations between this transparent channel opposite end sip terminal, the transparent channel that carries the transparent channel sign that reception sip server 52 is sent is set up response.
The passage module 513 that joins request: want Three S's IP terminal is added in the transparent channel of having set up, from passage set up to be confirmed module 512, obtain this transparent channel of having set up sign, this transparent channel of having set up sign and Three S's IP terminal iidentification are carried at transparent channel set up and send to sip server 52 in asking.
And, described sip server 52 also can be used for, the transparent channel of transparent channel sign that carrying of receiving that first sip terminal 51 sends set up and Three S's IP terminal iidentification set up ask after, this request is transmitted to Three S's IP terminal, preserves the mapping relations of this transparent channel of having set up sign and first and third sip terminal sign simultaneously.
Data transmission module 514: determine and to send data to second sip terminal 53, set up from passage and confirm to obtain the module 512 the corresponding transparent channel sign of second sip terminal sign, these data, transparent channel sign are sent to sip server 52.
And described sip server 52 also can be used for, and transparent channel sign and first sip terminal sign according to first sip terminal 51 is sent find second sip terminal sign, give second sip terminal 53 with the data forwarding that first sip terminal 51 is sent.
Passage discharges request module 515: want to discharge and other sip terminal between transparent channel, from passage set up to be confirmed module 512, obtain the corresponding transparent channel sign of sip terminal sign that will discharge, this transparent channel sign and this sip terminal that will discharge sign are carried at transparent channel discharge in the request and send to sip server 52; Receive the transparent channel release response of carrying the transparent channel sign that sip server 52 is sent, the deletion passage is set up the mapping relations of confirming between this transparent channel sign that writes down in the module 512 and the sip terminal sign that will discharge.
And, described sip server 52 also can be used for, described transparent channel is discharged request be transmitted to the sip terminal that will discharge, and after receiving that transparent channel that the sip terminal that will discharge returns discharges response, the mapping relations between the described transparent sign of deletion self record and first sip terminal sign, the sip terminal that will discharge identify.
As shown in Figure 7, sip server 52 can comprise: passage is set up processing module 521, channel information logging modle 522, data transmission and processing module 523 and passage and is discharged processing module 524, wherein:
Passage is set up processing module 521: receive the transparent channel foundation request of carrying transparent channel sign and second sip terminal sign that first sip terminal 51 is sent, this request is transmitted to second sip terminal 53, and the mapping relations between record transparent channel sign identifies with first sip terminal sign, second sip terminal in channel information logging modle 522; The transparent channel foundation response that second sip terminal 53 is returned is transmitted to first sip terminal 51.
Channel information logging modle 522: preserve the mapping relations that the transparent channel of having set up identifies and the sip terminal at passage two ends identifies.
Data transmission and processing module 523: receive transparent channel sign and data that first sip terminal 51 is sent, in channel information logging modle 522, search all sip terminal signs corresponding with transparent channel sign and first sip terminal sign, number according to all sip terminal signs that find, copy data sends to the sip terminal that each finds respectively with data.
Passage discharges processing module 524: the transparent channel that receives the sip terminal sign of carrying the transparent channel sign and will discharge that first sip terminal 51 sends discharges request, this request is transmitted to the sip terminal that will discharge; The transparent channel release response that the sip terminal that reception will discharge returns, the mapping relations between the transparent channel sign that writes down in the deletion channel information logging modle 522 and first terminal iidentification, the sip terminal that will discharge identify.
Transparent channel among the present invention is set up request message, transparent channel discharges request message, data transmission message, can be by the realizations such as INFO, NOTIFY or MESSAGE message in the Session Initiation Protocol.Can carry the transparent channel relevant information in the message body (SIPBody) by INFO, NOTIFY or MESSAGE message, wherein:
Available command field is represented the type of this message: as: when being worth for TC_Setup, represent that this message is that transparent channel is set up request message, when value is TC_Release, represent that this message is that transparent channel discharges request message, when value is TC_Transmit, represent that this message is data transmission message; Available Tag field is represented the transparent channel sign; Available Context field is represented the data type transmitted.
Transparent channel among the present invention is set up response message, transparent channel discharges response message, transfer of data response message, can realize by the 200ok message in the Session Initiation Protocol, 487 message.
Among the present invention, the data of transmitting in transparent channel are non-SIP signaling, non-audio-video frequency media data.
The above only is process of the present invention and method embodiment, in order to restriction the present invention, all any modifications of being made within the spirit and principles in the present invention, is not equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1, a kind of method for establishing transparent channel is characterized in that, this method comprises:
First sip terminal is wanted to set up transparent channel with second sip terminal, determines transparent channel sign, this transparent channel sign and second sip terminal sign is carried at transparent channel sets up and send to sip server in asking; Sip server is transmitted to second sip terminal with this request, and preserves the mapping relations of transparent channel sign between identifying with first sip terminal sign, second sip terminal;
Second sip terminal receives described request, returns transparent channel to sip server and sets up response, and sip server is transmitted to first sip terminal with this response, and first sip terminal receives described response, and the transparent channel between first and second sip terminal is set up.
2, the method for claim 1 is characterized in that, the transparent channel between described first sip terminal and second sip terminal further comprises after setting up:
First sip terminal is determined and will be sent data to second sip terminal, these data and described transparent channel sign are sent to sip server, sip server is according to described transparent channel sign and first sip terminal sign, in described mapping relations, find second sip terminal sign, send the data to second sip terminal;
Perhaps, second sip terminal is determined and will be sent data to first sip terminal, these data and described transparent channel sign are sent to sip server, sip server is according to described transparent channel sign and second sip terminal sign, in described mapping relations, find first sip terminal sign, send the data to first sip terminal.
3, the method for claim 1 is characterized in that, described method further comprises:
First sip terminal is wanted Three S's IP terminal is added in the transparent channel of having set up, this transparent channel of having set up sign and Three S's IP terminal iidentification are carried at transparent channel to be set up and sends to sip server in asking, sip server is transmitted to Three S's IP terminal with this request, and preserves the mapping relations between this transparent channel of having set up sign and first and third sip terminal sign;
Three S's IP terminal receives described request, returns transparent channel to sip server and sets up response, and sip server is transmitted to first sip terminal with this response, and the transparent channel between first and third sip terminal is set up.
4, method as claimed in claim 3 is characterized in that, the transparent channel between described first and third sip terminal further comprises after setting up:
First sip terminal sends to sip server with data and the described transparent channel sign of having set up, sip server is searched and the described transparent channel sign of having set up and all corresponding sip terminal signs of first sip terminal sign, number according to all sip terminal signs that find, copy data sends to the sip terminal that all find respectively with data.
5, the method for claim 1 is characterized in that, the transparent channel between described first and second sip terminal further comprises after setting up:
First sip terminal determine to discharge and second sip terminal between transparent channel, transparent channel sign and second sip terminal sign are carried at transparent channel to be discharged and sends to sip server in asking, sip server is transmitted to second sip terminal with this request, second sip terminal receives this request, and return transparent channel to sip server and discharge response, sip server receives this response, deletes the mapping relations of the transparent channel sign of self preserving between identifying with first and second sip terminal;
Perhaps, second sip terminal determine to discharge and first sip terminal between transparent channel, transparent channel sign and first sip terminal sign are carried at transparent channel to be discharged and sends to sip server in asking, sip server is transmitted to first sip terminal with this request, first sip terminal receives this request, and return transparent channel to sip server and discharge response, sip server receives this response, deletes the transparent channel sign of self preserving and first and second sip terminal mapping relations between identifying.
6, method as claimed in claim 3 is characterized in that, the transparent channel between described first and third sip terminal further comprises after setting up:
First sip terminal determines to discharge the transparent channel with Three S's IP terminal room, transparent channel sign and Three S's IP terminal iidentification are carried at transparent channel to be discharged and sends to sip server in asking, sip server is transmitted to Three S's IP terminal with this request, Three S's IP terminal receives this request, and return transparent channel to sip server and discharge response, sip server receives this response, deletes the mapping relations of the transparent channel sign of self preserving between identifying with first and third sip terminal;
Perhaps, Three S's IP terminal determine to discharge and first sip terminal between transparent channel, transparent channel sign and first sip terminal sign are carried at transparent channel to be discharged and sends to sip server in asking, sip server is transmitted to first sip terminal with this request, first sip terminal receives this request, and return transparent channel to sip server and discharge response, sip server receives this response, deletes the transparent channel sign of self preserving and the first and third sip terminal mapping relations between identifying.
As claim 2 or 4 described methods, it is characterized in that 7, described data are non-SIP signaling, non-audio-video frequency media data.
8, a kind of sip terminal is characterized in that, this sip terminal comprises:
Passage is set up request module, wants to set up transparent channel with second sip terminal, determines transparent channel sign, this transparent channel sign and second sip terminal sign is carried at transparent channel sets up and send to sip server in asking;
Passage is set up the affirmation module, receives the transparent channel foundation response of carrying the transparent channel sign that sip server is sent, and determines transparent channel foundation.
9, sip terminal as claimed in claim 8 is characterized in that, described sip terminal further comprises:
Data transmission module is determined and will be sent data to second sip terminal, and the sign of the transparent channel between these data and this sip terminal and second sip terminal is sent to sip server.
10, sip terminal as claimed in claim 8 or 9 is characterized in that described sip terminal further comprises:
The passage module that joins request is wanted Three S's IP terminal is added in the transparent channel of having set up, this transparent channel of having set up sign and Three S's IP terminal iidentification is carried at transparent channel sets up and send to sip server in asking.
11, sip terminal as claimed in claim 8 or 9 is characterized in that described sip terminal further comprises:
Passage discharges request module, want to discharge and other sip terminal between transparent channel, this transparent channel sign and this other sip terminal sign are carried at transparent channel discharge in the request and send to sip server.
12, a kind of sip server is characterized in that, this sip server comprises:
Passage is set up processing module, receive the transparent channel foundation request of carrying transparent channel sign and second sip terminal sign that first sip terminal is sent, this request is transmitted to second sip terminal, and in the channel information logging modle mapping relations between record transparent channel sign and first sip terminal sign, second sip terminal sign, the transparent channel that second sip terminal is returned is set up to respond and is transmitted to first sip terminal;
The channel information logging modle is preserved the mapping relations that the transparent channel of having set up identifies and the sip terminal at passage two ends identifies.
13, sip server as claimed in claim 12 is characterized in that, described sip server further comprises:
The data transmission and processing module, receive transparent channel sign and data that first sip terminal is sent, in the channel information logging modle, search all sip terminal signs corresponding with transparent channel sign and first sip terminal sign, number according to all sip terminal signs that find, copy data sends to the sip terminal that each finds respectively with data.
14, as claim 12 or 13 described sip servers, it is characterized in that described sip server further comprises:
Passage discharges processing module, the transparent channel that receives the sip terminal sign of carrying the transparent channel sign and will discharge that first sip terminal sends discharges request, this request is transmitted to the sip terminal that will discharge, the transparent channel that the sip terminal that reception will discharge returns discharges response, the mapping relations between the transparent channel sign that writes down in the deletion channel information logging modle and first terminal iidentification, the sip terminal that will discharge identify.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761442A (en) * | 2012-07-09 | 2012-10-31 | 中兴通讯股份有限公司 | Method, devices and system for creating and deleting management channel |
| CN103841140A (en) * | 2012-11-22 | 2014-06-04 | 北京百度网讯科技有限公司 | Inter-terminal information mutual-transmission method, system and device |
| CN105657368A (en) * | 2016-01-06 | 2016-06-08 | 福建星网智慧科技股份有限公司 | Method for rapidly switching IPC (Inter Process Communication) camera into IP (Internet Protocol) multimedia system IMS |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101217529B (en) * | 2007-01-05 | 2011-06-22 | 华为技术有限公司 | A method, device and system to realize ET.38 faxing business in the Internet |
| CN101394304B (en) * | 2007-09-18 | 2012-05-23 | 中兴通讯股份有限公司 | System and method for transparent maintenance of remote radio frequency unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761442A (en) * | 2012-07-09 | 2012-10-31 | 中兴通讯股份有限公司 | Method, devices and system for creating and deleting management channel |
| CN102761442B (en) * | 2012-07-09 | 2016-02-24 | 中兴通讯股份有限公司 | A kind of method, Apparatus and system creating and delete management channels |
| CN103841140A (en) * | 2012-11-22 | 2014-06-04 | 北京百度网讯科技有限公司 | Inter-terminal information mutual-transmission method, system and device |
| CN103841140B (en) * | 2012-11-22 | 2019-05-28 | 北京百度网讯科技有限公司 | A kind of mthods, systems and devices that terminal room information mutually passes |
| CN105657368A (en) * | 2016-01-06 | 2016-06-08 | 福建星网智慧科技股份有限公司 | Method for rapidly switching IPC (Inter Process Communication) camera into IP (Internet Protocol) multimedia system IMS |
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