CN101336002B - Method and system for dual-tone multi-frequency signal parameter negotiation between media gateways - Google Patents
Method and system for dual-tone multi-frequency signal parameter negotiation between media gateways Download PDFInfo
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- CN101336002B CN101336002B CN2008101426773A CN200810142677A CN101336002B CN 101336002 B CN101336002 B CN 101336002B CN 2008101426773 A CN2008101426773 A CN 2008101426773A CN 200810142677 A CN200810142677 A CN 200810142677A CN 101336002 B CN101336002 B CN 101336002B
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- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
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Abstract
The invention discloses a parameter consulting method of dual tone multifrequency signals between media gateways and a system, comprising: A. arranging configuration parameters of dual tone multifrequency signals in IP loading control protocol tunnel information; B. alternating between media gateways through the IP loading control protocol tunnel information, performing consulting process according to the configuration parameters of the dual tone multifrequency signals. The system includes a dual tone multifrequency signal parameter configuration module, for arranging configuration parametersof the dual tone multifrequency signals in the IP loading control protocol tunnel information; the media gateways is alternated through IP loading control protocol tunnel information, to perform consulting process according to the configuration parameters of the dual tone multifrequency signals. The consulting implement method of the configuration parameters of the dual tone multifrequency signals in the invention is simple, which is in favor of system maintenance.
Description
Technical field
The present invention relates to communication technical field, especially relate to the parameter consultation method and the system of the touch-tone signal between a kind of media gateway.
Background technology
At wireless third generation communication network (WCDMA, CDMA2000, TD-SCDMA) and in the core net circuit domain of next generation network (NGN), the thought and the networking mode that have all adopted carrying to separate with control, its main network element are media gateway (MGW) and gateway controller (MGC).
Media gateway provides the controlled function of Media Stream, is mainly the foundation and the maintenance of carrying, the control that continues, speech coding processing and conversion or the like.Gateway controller provides functions such as calling out control and mobile management, mainly comprises calling control flow, subscription authentication, charging etc.
H.248/Megaco agreement contact MGC and MGW are the MGCPs of present main flow; By call-independent control protocol bearing (BICC) flow processs such as call establishment, modification and release are controlled between the MGC; The maximum of the present usefulness of medium face transfer of data between the MGW are the RTP/IP carryings; IP Bearer Control Protocol (IPBCP) is the major control agreement of RTP/IP carrying between WCDMA and the TD-SCDMA core net MGW; A kind of principle framework of typical IPBCP tunnel message mechanism as shown in Figure 1, MGC1 is connected by Nc interface (support Bearer Independent Call Control Protocol) with MGC2, MGW1 is connected by Nb interface with MGW2, then connects by Mc interface (supporting H.248 agreement) between MGC and the MGW.IP Bearer Control Protocol be by by H.248 and the tunneling mechanism that provides of Bearer Independent Call Control Protocol between MGW, transmit the RTP/IP bearing parameter, to finish carrying control.
DTMF (Dual Tone Multi-Frequency: dual-tone multifrequency) be widely used in the traditional communication field, the transmission means of DTMF has: 1, by communication protocol transmission, and as H.323, MGCP, SIP etc.; 2, by RTP (Real-time Transport Protocol: data content transmission RTP), DTMF is modeled to voice; 3,, use the bag transmission of RTP according to RFC2833.The first method major defect is because control signaling and media delivery (RTP) are separately transmission, is easy to cause dtmf signal asynchronous with the medium bag.Other two kinds of methods are to carry dtmf signal in the RTP media delivery, thereby do not have dtmf signal and the nonsynchronous problem of Media Stream.
Dtmf signal just can learn that in the header field of RTP bag this bag is the DTMF bag, and know it is what dtmf signal that normal structure IETF has formulated the RFC2833 standard, specially this is had definition with special RTP bag transmission.Dtmf signal is indicated by SDP at the relevant parameter of media flow transmission with the RFC2833 frame.
But because the BICC signaling that is used for call manager between the MGC does not have the negotiation ability of SDP, therefore whether the MGW that relates to of calling supports the RFC2833 frame transmission of DTMF and relevant parameter can't obtain consulting between MGC.Can only lean against the relevant configuration of RFC2833 frame transmittability that DTMF is set on the relevant MGW at present solves; This had both reduced flexibility ratio, had also increased the maintenance difficulties of system simultaneously greatly; Because, will cause transfer of data incorrect in case configuration is inconsistent between two MGW.
Summary of the invention
In view of this, the present invention proposes the parameter consultation method and the system of the touch-tone signal between a kind of media gateway, can between MGC, carry out the negotiation of transmission of RFC2833 frame and relevant parameter easily.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
The parameter consultation method of the touch-tone signal between a kind of media gateway comprises following steps:
A, the configuration parameter of touch-tone signal is set in the IP Bearer Control Protocol tunnel message;
Undertaken alternately by the IP Bearer Control Protocol tunnel message between B, media gateway, according to the processing of holding consultation of the configuration parameter of wherein touch-tone signal.
Described step B specifically carries out in the IP loading establishing process as follows:
B11, first media gateway are obtained the configuration parameter of local terminal touch-tone signal, set up the request tunnel message by the carrying of IP Bearer Control Protocol and send to second media gateway;
B12, second media gateway be the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects according to comparative result: support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, do not support three kinds of touch-tone signal transmission one of to reply to respond to first media gateway; And the IP carrying that the transmission means that second media gateway is selected by comparative result is set up local terminal connects;
B13, first media gateway are selected according to the response result of second media gateway: the IP carrying of support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, not supporting one of three kinds of modes of touch-tone signal transmission to set up local terminal connects.
Described step B specifically carries out in IP bearing modification process as follows:
B21, caller media gateway are obtained the configuration parameter of local terminal touch-tone signal, and the bearing modification request tunnel message by IP Bearer Control Protocol sends to called media gateway;
B22, called media gateway be the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects according to comparative result: support the touch-tone signal transmission accept support accepting tunnel message, not supporting three kinds of the refusal tunnel message of touch-tone signal transmission one of to reply to respond of touch-tone signal transmission behind tunnel message, the parameter modification to the caller media gateway; And the transmission means that called media gateway is selected by comparative result is carried out the IP bearing modification of local terminal;
B23, caller media gateway are selected according to the response result of called media gateway: support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, do not support one of three kinds of modes of touch-tone signal transmission to carry out the IP bearing modification of local terminal.
The configuration parameter of described touch-tone signal comprises that the RFC2833 frame of whether supporting touch-tone signal transmits and the load type of touch-tone signal, and described parameter modification is meant makes amendment to the load type of touch-tone signal.
Described steps A is provided with the configuration parameter of touch-tone signal and realizes by media holding statement and the medium property parameter that the information of session description protocol in the IP Bearer Control Protocol tunnel message is set.
The invention also discloses the parameter negotiation system of the touch-tone signal between a kind of media gateway, comprise the touch-tone signal parameter configuration module that is used for being provided with the configuration parameter of touch-tone signal at the IP Bearer Control Protocol tunnel message; And, be used for being undertaken alternately by the IP Bearer Control Protocol tunnel message between media gateway the module of handling through consultation of holding consultation and handling according to the configuration parameter of wherein touch-tone signal.
Described parameter negotiation system, the mode of handling through consultation between media gateway in the IP loading establishing process is: first media gateway is obtained the configuration parameter of local terminal touch-tone signal, sets up the request tunnel message by the carrying of IP Bearer Control Protocol and sends to second media gateway; Second media gateway is the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects according to comparative result: support the touch-tone signal transmission accept support accepting tunnel message, not supporting three kinds of the refusal tunnel message of touch-tone signal transmission one of to reply to respond of touch-tone signal transmission behind tunnel message, the parameter modification to first media gateway; And the IP carrying that the transmission means that second media gateway is selected by comparative result is set up local terminal connects; First media gateway is selected according to the response result of second media gateway: the IP carrying of support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, not supporting one of three kinds of modes of touch-tone signal transmission to set up local terminal connects.
Described parameter negotiation system, the mode of handling through consultation between media gateway in IP bearing modification process: for the caller media gateway is obtained the configuration parameter of local terminal touch-tone signal, the bearing modification request tunnel message by IP Bearer Control Protocol sends to called media gateway; Called media gateway is the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects according to comparative result: support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, do not support three kinds of touch-tone signal transmission one of to reply to respond to the caller media gateway; And the transmission means that called media gateway is selected by comparative result is carried out the IP bearing modification of local terminal; The caller media gateway is selected according to the response result of called media gateway: support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, do not support one of three kinds of modes of touch-tone signal transmission to carry out the IP bearing modification of local terminal.
Described parameter negotiation system, the configuration parameter of described touch-tone signal comprises the RFC2833 frame transmission of whether supporting touch-tone signal and the load type of touch-tone signal, described parameter modification is meant makes amendment to the load type of touch-tone signal.
Described parameter negotiation system, the configuration parameter that described touch-tone signal parameter configuration module is provided with touch-tone signal is to realize by media holding statement that the information of session description protocol in the IP Bearer Control Protocol tunnel message is set and medium property parameter.
The present invention is by being provided with the configuration parameter of touch-tone signal in the IP Bearer Control Protocol tunnel message; Thereby make media gateway can utilize the IP Bearer Control Protocol tunnel message to carry out the handling through consultation of configuration parameter of touch-tone signal.The negotiation implementation method is simple, helps system maintenance.
Description of drawings
Fig. 1 is the principle configuration diagram of typical IPBCP tunnel message mechanism;
Fig. 2 is the schematic diagram of the RFC2833 frame transmission parameter negotiation of the DTMF in the IP loading establishing process of the specific embodiment of the invention;
Fig. 3 is the schematic diagram of the RFC2833 frame transmission parameter negotiation of the DTMF in the IP bearing modification process of the specific embodiment of the invention.
Embodiment
Contrast accompanying drawing and the present invention is elaborated below in conjunction with embodiment.
To be solved by this invention is the problem that the relevant parameter of the RFC2833 frame transmission mechanism of DTMF between the circuit domain media gateway can't be consulted between media gateway.
Since the IPBCP agreement by H.248 with Bearer Independent Call Control Protocol in the tunneling mechanism that provides, make the tunnel message that can send IPBCP between two MGW of interoffice mutually to reach the purpose of transmitting bearer related information.This parameter negotiation that also transmits between MGW for the RFC2833 frame of DTMF provides may.
For this reason, the present invention has mainly adopted the processing of the following aspects:
1. the tunnel message at IPBCP is provided with the requirement of support RFC2833 to the SDP form.
2. carrying the RFC2833 parameter in the tunnel message of the IP of IPBCP carrying foundation (IP Bearer establishment) process holds consultation.
3. carrying the RFC2833 parameter in the tunnel message of the IP of IPBCP bearing modification (IP Bearer modification) process holds consultation.
4.MGW on the IPBCP protocol processes part RFC2833 relevant parameter after will consulting be handed down to the RTP/IP protocol stack and handle RFC2833 frame transfer function with support corresponding D TMF.
Respectively above-mentioned several aspects are described below:
1.IPBCP tunnel message formal definition
For realizing the parameter negotiation of RFC2833, at first need to define clearly the SDP information format in the IPBCP tunnel message.The RFC2833 relevant information only influence SDP in the IPBCP tunnel message with the lower part:
● media holding statement (Media Announcement)
m＝<media><port><transport><fmt?list>
Wherein,＜and fmt list〉can be the statement tabulation of a plurality of load type (Payload Type).
● medium property (Media attributes)
Each＜fmt list in the dynamic load type need the explanation of medium property, form is as follows:
a＝rtpmap:<payload><encoding?name>/<clock?rate>[/<encodingparameters>]
Also need support the DTMF tabulation statement of RFC2833 in addition:
a＝fmtp:<format><list?of?values>
Wherein,＜format〉be the dynamic load types value of DTMF, must be at media holding statement＜fmtlist stated.＜list of values〉for needing the incident of detection, 0～15 incident all must be supported to detect, and can omit.
2. as shown in Figure 2, the RFC2833 in the IP loading establishing process consults to comprise:
1.. according to the demand of call business, the IPBCP on the MGW1 begins to initiate the foundation of MGW interoffice RTP/IP carrying, reserves resource requirement, obtains the RFC2833 frame transmittability configuration information whether this MGW supports DTMF.
2.. if IPBCP finds that this MGW supports the RFC2833 frame transmission of DTMF, then sets up in the tunnel message of asking in carrying and carries RFC2833 information.Tunnel message among WCDMA CN is exemplified below:
v＝0
o＝-0?1?IN?IP4?1.2.3.4
s＝0
c＝IN?IP4?1.2.3.4
t＝0?0
a＝ipbcp:1?Request
m＝audio?5304?RTP/AVP?96?100
a＝rtpmap:96?VND.3GPP.IUFP/16000
a＝fmtp:100?0-15
3. after the IPBCP on the .MGW2 receives the tunnel message that sends, resolve message and find that the opposite end requires this time to call out the RFC2833 frame of supporting DTMF.In this case, IPBCP at first obtains the ability configuration of this MGW, sees the RFC2833 frame transfer function of whether supporting DTMF.According to the support situation, following three kinds of processing are arranged:
I.MGW2 supports consistent in the RFC2833 function of DTMF and load type and the MGW1 tunnel message: IPBCP sends request to the RTP/IP protocol processes, carries the RFC2833 information in parameter such as IP address and the MGW1 tunnel message, sets up the carrying connection.
Ii.MGW2 supports inconsistent in the RFC2833 function of DTMF and load type and the MGW1 tunnel message: IPBCP sends request to the RTP/IP protocol processes, carries the RFC2833 information among parameter such as IP address and the MGW2, sets up the carrying connection.
Iii.MGW2 does not support the RFC2833 transfer function of DTMF: IPBCP to send request to the RTP/IP protocol processes, carries parameters such as IP address, sets up carrying and connects.Do not transmit RFC2833 information.
4. the RTP/IP protocol processes that requires of .IPBCP success has been set up after carrying connects, and sends to MGW1 and replys tunnel message.Whether support that according to this MGW2 the RFC22833 frame transfer function of DTMF and MGW2 support whether consistent in DTMF load type and the MGW1 tunnel message following three kinds of dispositions to be arranged:
I.MGW2 supports consistent in the RFC2833 frame transfer function of DTMF and DTMF load type and the MGW1 tunnel message: IPBCP is sent back to MGW1 with media holding statement in the tunnel message of receiving and medium property information former state in replying tunnel message.For example:, reply tunnel message and be for request message example in 2.:
v＝0
o＝-0?1?IN?IP4?1.2.3.5
s＝0
c＝IN?IP4?1.2.3.5
t＝0?0
a＝ipbcp:1?Accept
m＝audio?5004?RTP/AVP?96?100
a＝rtpmap:96?VND.3GPP.IUFP/16000
a＝fmtp:100?0-15
Ii.MGW2 supports media holding statement and the medium property correct in the tunnel message that inconsistent in the RFC2833 transfer function of DTMF and DTMF load type and the MGW1 tunnel message: IPBCP sends MGW1, the DTMF load type that MGW2 is supported is as medium property information, other media holding statements and medium property information remain unchanged, and beam back tunnel acknowledgment to MGW1.For example:, reply tunnel message and be for request message example in 2.:
v＝0
o＝-0?1?IN?IP4?1.2.3.5
s＝0
c＝IN?IP4?1.2.3.5
t＝0?0
a＝ipbcp:1?Accept
m＝audio?5004?RTP/AVP?96?127
a＝rtpmap:96?VND.3GPP.IUFP/16000
a＝fmtp:127?0-15
Iii.MGW2 does not support media holding statement and the medium property correct in the tunnel message that the RFC2833 transfer function of DTMF: IPBCP sends MGW1, removes RFC2833 information, only passes other coding/decoding informations back MGW1 with replying tunnel message.For example:, reply tunnel message and be for request message example in 2.:
v＝0
o＝-0?1?IN?IP4?1.2.3.5
s＝0
c＝IN?IP4?1.2.3.5
t＝0?0
a＝ipbcp:1?Accept
m＝audio?5004?RTP/AVP?96
a＝rtpmap:96?VND.3GPP.IUFP/16000
As can be seen, it is 100 that MGW1 indicates the load type of self by " m=audio 5004 RTP/AVP 96 100 ", and MGW2 produces different replying at different support situations, in first kind of processing, be that former state is beamed back, MGW2 is 127 by the load type that " m=audio 5004 RTP/AVP96 127 " respond self then in second kind of processing, in the third was handled, the response message of MGW2 was then removed parameter and " the a=fmtp:100 0-15 " of this reflection load type.
5. the IPBCP of .MGW1 receives the tunnel message of replying that MGW2 sends.Whether change according to the load type of wherein whether having carried back RFC2833 information and DTMF, divide following three kinds of processing:
I. having carried back RFC2833 information and DTMF load type in the tunnel message does not have to change: illustrate that MGW2 supports the RFC2833 frame transmission of DTMF.IPBCP sends request to the RTP/IP protocol processes, carries the RFC2833 information in parameter such as IP address and the MGW2 tunnel message, sets up carrying and connects.
Ii. having carried back RFC2833 information and DTMF load type in the tunnel message changes: illustrate that MGW2 supports the RFC2833 frame transfer function of DTMF, but load type is different with MGW1.IPBCP sends request to the RTP/IP protocol processes, carries the RFC2833 information in parameter such as IP address and the MGW2 tunnel message, sets up carrying and connects.
Iii. do not carry RFC2833 information in the tunnel message: illustrate that MGW2 does not support the RFC2833 frame transfer function of DTMF.IPBCP sends request to the RTP/IP protocol processes, carries parameters such as IP address, sets up carrying and connects.Do not support the RFC2833 frame transfer function of DTMF.
3. as shown in Figure 3, the RFC2833 in the IP bearing modification process consults to comprise:
1.. according to the demand of call business, IPBCP on the MGW1 judges needs to change the on off state that this calls out the RFC2833 transfer function of DTMF, then begin to initiate the modification of MGW interoffice RTP/IP carrying, reserve resource requirement, obtain the RFC2833 transmittability configuration information whether this MGW supports DTMF.For preventing that two MGW from initiating to revise request simultaneously, the originating end when the present invention is set up by carrying (being MGW1 in this example) is initiated this kind bearing modification.
2.. send the bearing modification request message according to different situations:
I. call out the current RFC2833 transfer function of not opening DTMF, IPBCP is according to the RFC2833 frame transmission of judging needs support DTMF, and this MGW support RFC2833 frame transfer function, sends the bearing modification request message to MGW2, carries RFC2833 information.
Ii. call out the current RFC2833 frame transfer function of having opened DTMF, IPBCP then sends the bearing modification request message to MGW2 according to judging that no longer needs support the RFC2833 frame of DTMF to transmit, and does not carry RFC2833 information, only carries the physical medium coding/decoding information.
3. after the IPBCP on the .MGW2 receives the tunnel message that sends,, following different disposal is arranged according to wherein whether having carried RFC2833 information:
I. do not have RFC2833 information: IPBCP to send request in the tunnel message, close the RFC2833 frame transfer function of DTMF to the RTP/IP protocol processes.
Ii. carry RFC2833 information: IPBCP in the tunnel message and check this MGW configuration:
1., then send request, the RFC2833 frame transfer function of unlatching DTMF to the RTP/IP protocol processes if this MGW supports the load type of the RFC2833 frame transfer function of DTMF and DTMF consistent with DTMF load type in the tunneled requests message of receiving.
2. if the load type of the RFC2833 frame transfer function of this MGW support DTMF and DTMF is inconsistent with the DTMF load type in the tunneled requests message of receiving, then send request, open the RFC2833 frame transfer function (wherein the DTMF load type is a MGW2 end load type) of DTMF to the RTP/IP protocol processes.
3., then do not do any action if do not support.
4. the IPBCP on the .MGW2 sends to MGW1 and replys tunnel message, and following several situation is arranged:
I.MGW1 has carried RFC2833 information in tunnel message, but the configuration of MGW2 does not support that perhaps configuration support initiates to revise but not success, and then the IPBCP of MGW2 replys a refusal (Reject) tunnel message to MGW1.
Ii.MGW1 has carried RFC2833 information in tunnel message, MGW2 is configured to support and revise successfully, then the IPBCP of MGW2 replys an acceptance (Accept) tunnel message to MGW1, and wherein the DTMF load type is the load type of MGW2 side DTMF in the RFC2833 frame.
Iii.MGW1 does not carry RFC2833 information in tunnel message, and MGW2 closes the RFC2833 transfer function success of DTMF, and then the IPBCP of MGW2 replys an acceptance (Accept) tunnel message to MGW1, does not wherein carry RFC2833 information.
Iv.MGW1 does not carry RFC2833 information in tunnel message, but MGW2 closes the RFC2833 transfer function failure of DTMF, and then the IPBCP of MGW2 replys a refusal (Reject) tunnel message to MGW1.
5. the IPBCP of .MGW1 receives the tunnel message of replying that MGW2 sends.According to this message is to accept or refuse to do following different processing:
I. tunnel message is " acceptance ": open the RFC2833 function if this is revised as, then require to open the RFC2833 frame transfer function of DTMF to the RTP/IP protocol processes, wherein the DTMF load type is a DTMF load type in the tunnel message of MGW2.If this is revised as the RFC2833 transfer function of closing DTMF, then send the request of closing this function to the RTP/IP protocol processes.Modification process finishes.
Ii. tunnel message is " refusal ": open the RFC2833 function if this is revised as, perhaps this is revised as and closes the RFC2833 function, does not then do any action, and modification process finishes.
The parameter consultation method of the touch-tone signal between the media gateway of the summary specific embodiment of the invention, it mainly is the configuration parameter that touch-tone signal at first is set in the IP Bearer Control Protocol tunnel message; Undertaken alternately by the IP Bearer Control Protocol tunnel message between media gateway then, according to the processing of holding consultation of the configuration parameter of wherein touch-tone signal.Thereby realized whether the MGW that a calling is related to supports the RFC2833 frame transmission of DTMF and the negotiation of relevant parameter.Implementation method is simple, is easy to the maintenance to system.
The parameter negotiation system of the touch-tone signal between a kind of media gateway of the specific embodiment of the invention, comprise the touch-tone signal parameter configuration module, the touch-tone signal parameter configuration module is used for being provided with at the IP Bearer Control Protocol tunnel message configuration parameter of touch-tone signal; Undertaken alternately by the IP Bearer Control Protocol tunnel message between media gateway, according to the processing of holding consultation of the configuration parameter of wherein touch-tone signal.
Described parameter negotiation system, the mode of handling through consultation between media gateway in the IP loading establishing process is: first media gateway is obtained the configuration parameter of local terminal touch-tone signal, sets up the request tunnel message by the carrying of IP Bearer Control Protocol and sends to second media gateway; Second media gateway is the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects to support to support to support in the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification three kinds of touch-tone signal transmission one of to reply response to first media gateway according to comparative result; First media gateway is selected to support to support in the touch-tone signal transmission one of three kinds of modes of touch-tone signal transmission to set up the IP carrying behind touch-tone signal transmission, the parameter modification according to the response result of second media gateway and is connected.
Described parameter negotiation system, the mode of handling through consultation between media gateway in IP bearing modification process is: the caller media gateway is obtained the configuration parameter of local terminal touch-tone signal, sets up the request tunnel message by the carrying of IP Bearer Control Protocol and sends to called media gateway; Called media gateway is the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects to support to support to support in the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification three kinds of touch-tone signal transmission one of to reply response to the caller media gateway according to comparative result; The caller media gateway is selected to support to support in the touch-tone signal transmission one of three kinds of modes of touch-tone signal transmission to carry out the IP bearing modification behind touch-tone signal transmission, the parameter modification according to the response result of called media gateway.
The configuration parameter of above-mentioned touch-tone signal comprises that the RFC2833 frame of whether supporting touch-tone signal transmits and the load type of touch-tone signal, and parameter modification is meant makes amendment to the load type of touch-tone signal.The configuration parameter that the touch-tone signal parameter configuration module is provided with touch-tone signal is to realize by media holding statement and the medium property parameter that the information of session description protocol in the IP Bearer Control Protocol tunnel message is set.
Need to understand, first media gateway above and caller media gateway all are to refer to MGW1, second media gateway and called media gateway all are to refer to MGW2, why two kinds of titles appear, mainly be in order to emphasize in the handling through consultation in IP bearing modification process, consult at first to initiate, initiate to revise request simultaneously to prevent two MGW by originating end.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. the parameter consultation method of the touch-tone signal between a media gateway is characterized in that, comprises following steps:
A, the configuration parameter of touch-tone signal is set in the IP Bearer Control Protocol tunnel message;
Undertaken alternately by the IP Bearer Control Protocol tunnel message between B, media gateway, according to the processing of holding consultation of the configuration parameter of wherein touch-tone signal.
2. parameter consultation method as claimed in claim 1 is characterized in that, described step B specifically carries out in the IP loading establishing process as follows:
B11, first media gateway are obtained the configuration parameter of local terminal touch-tone signal, set up the request tunnel message by the carrying of IP Bearer Control Protocol and send to second media gateway;
B12, second media gateway be the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects according to comparative result: support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, do not support three kinds of touch-tone signal transmission one of to reply to respond to first media gateway; And the IP carrying that the transmission means that second media gateway is selected by comparative result is set up local terminal connects;
B13, first media gateway are selected according to the response result of second media gateway: the IP carrying of support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, not supporting one of three kinds of modes of touch-tone signal transmission to set up local terminal connects.
3. parameter consultation method as claimed in claim 1 is characterized in that, described step B specifically carries out in IP bearing modification process as follows:
B21, caller media gateway are obtained the configuration parameter of local terminal touch-tone signal, and the bearing modification request tunnel message by IP Bearer Control Protocol sends to called media gateway;
B22, called media gateway be the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects according to comparative result: support the touch-tone signal transmission accept support accepting tunnel message, not supporting three kinds of the refusal tunnel message of touch-tone signal transmission one of to reply to respond of touch-tone signal transmission behind tunnel message, the parameter modification to the caller media gateway; And the transmission means that called media gateway is selected by comparative result is carried out the IP bearing modification of local terminal;
B23, caller media gateway are selected according to the response result of called media gateway: support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, do not support one of three kinds of modes of touch-tone signal transmission to carry out the IP bearing modification of local terminal.
4. as claim 2 or 3 described parameter consultation methods, it is characterized in that, the configuration parameter of described touch-tone signal comprises that the RFC2833 frame of whether supporting touch-tone signal transmits and the load type of touch-tone signal, and described parameter modification is meant makes amendment to the load type of touch-tone signal.
5. as the arbitrary described parameter consultation method of claim 1 to 3, it is characterized in that described steps A is provided with the configuration parameter of touch-tone signal and realizes by media holding statement and the medium property parameter that the information of session description protocol in the IP Bearer Control Protocol tunnel message is set.
6. the parameter negotiation system of the touch-tone signal between a media gateway is characterized in that, comprises the touch-tone signal parameter configuration module that is used for being provided with at the IP Bearer Control Protocol tunnel message configuration parameter of touch-tone signal; And, be used for being undertaken alternately by the IP Bearer Control Protocol tunnel message between media gateway the module of handling through consultation of holding consultation and handling according to the configuration parameter of wherein touch-tone signal.
7. parameter negotiation as claimed in claim 6 system, it is characterized in that, the mode of handling through consultation between media gateway in the IP loading establishing process is: first media gateway is obtained the configuration parameter of local terminal touch-tone signal, sets up the request tunnel message by the carrying of IP Bearer Control Protocol and sends to second media gateway; Second media gateway is the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects according to comparative result: support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, do not support three kinds of touch-tone signal transmission one of to reply to respond to first media gateway; And the IP carrying that the transmission means that second media gateway is selected by comparative result is set up local terminal connects; First media gateway is selected according to the response result of second media gateway: the IP carrying of support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, not supporting one of three kinds of modes of touch-tone signal transmission to set up local terminal connects.
8. parameter negotiation as claimed in claim 6 system, it is characterized in that, the mode of handling through consultation between media gateway in IP bearing modification process is obtained the configuration parameter of local terminal touch-tone signal for the caller media gateway, and the bearing modification request tunnel message by IP Bearer Control Protocol sends to called media gateway; Called media gateway is the configuration parameter of local terminal and the touch-tone signal of opposite end relatively, and selects according to comparative result: support the touch-tone signal transmission accept support accepting tunnel message, not supporting three kinds of the refusal tunnel message of touch-tone signal transmission one of to reply to respond of touch-tone signal transmission behind tunnel message, the parameter modification to the caller media gateway; And the transmission means that called media gateway is selected by comparative result is carried out the IP bearing modification of local terminal; The caller media gateway is selected according to the response result of called media gateway: support to support the touch-tone signal transmission behind touch-tone signal transmission, the parameter modification, do not support one of three kinds of modes of touch-tone signal transmission to carry out the IP bearing modification of local terminal.
9. as claim 7 or 8 described parameter negotiation systems, it is characterized in that, the configuration parameter of described touch-tone signal comprises that the RFC2833 frame of whether supporting touch-tone signal transmits and the load type of touch-tone signal, and described parameter modification is meant makes amendment to the load type of touch-tone signal.
10. as the arbitrary described parameter negotiation of claim 6 to 8 system, it is characterized in that the configuration parameter that described touch-tone signal parameter configuration module is provided with touch-tone signal is to realize by media holding statement that the information of session description protocol in the IP Bearer Control Protocol tunnel message is set and medium property parameter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008101426773A CN101336002B (en) | 2008-07-29 | 2008-07-29 | Method and system for dual-tone multi-frequency signal parameter negotiation between media gateways |
| PCT/CN2008/072444 WO2010012141A1 (en) | 2008-07-29 | 2008-09-22 | A method and a system for negotiating parameter of a dual tone multi-frequency signal between media gateways |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101426773A CN101336002B (en) | 2008-07-29 | 2008-07-29 | Method and system for dual-tone multi-frequency signal parameter negotiation between media gateways |
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| CN101336002B true CN101336002B (en) | 2011-11-30 |
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| CN2008101426773A Expired - Fee Related CN101336002B (en) | 2008-07-29 | 2008-07-29 | Method and system for dual-tone multi-frequency signal parameter negotiation between media gateways |
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| CN101860630B (en) * | 2010-06-22 | 2014-07-02 | 中兴通讯股份有限公司 | Transmission method and system of out-of-band dual tone multiple frequency (DTMF) signal |
| CN108964832B (en) * | 2017-05-18 | 2021-06-25 | 维沃移动通信有限公司 | Transmission method, related equipment and system |
| CN114172858B (en) * | 2020-11-16 | 2023-12-08 | 深圳市咪码科技有限公司 | Information transmission method and device, storage medium and electronic equipment |
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| US7065053B2 (en) * | 2001-05-25 | 2006-06-20 | Telefonaktiebolaget L M Ericsson (Publ) | Method, system and agent for third generation partnership project (3GPP) technical specification (TS) document number exchange |
| US7630488B2 (en) * | 2003-05-16 | 2009-12-08 | Alcatel-Lucent Usa Inc. | DTMF tone generation in a media gateway |
| CN100440765C (en) * | 2003-07-10 | 2008-12-03 | 华为技术有限公司 | A method for implementing channel establishment by call between packet networks |
| EP1712060B1 (en) * | 2004-02-06 | 2007-10-17 | Nokia Siemens Networks Gmbh & Co. Kg | Method for negotiating bearer properties in ip networks |
| CN1859339B (en) * | 2005-04-30 | 2010-07-07 | 华为技术有限公司 | Communication system and method for realizing IP cross-domain inter communication by edge media gateway |
| CN100413351C (en) * | 2005-08-31 | 2008-08-20 | 华为技术有限公司 | Processing method for bearing control |
| CN101094171B (en) * | 2006-06-22 | 2011-02-16 | 华为技术有限公司 | Method and system for implementing interaction of media streams, controller of media gateway, and media gateway |
| KR20080015298A (en) * | 2006-08-14 | 2008-02-19 | 엘지노텔 주식회사 | A method for establishing an ip bearer between media gateways in a wcdma communication system and a media gateway therefor |
| CN101166178B (en) * | 2006-10-16 | 2010-05-12 | 华为技术有限公司 | Session description protocol version negotiation method, system and network entity |
| CN101179535B (en) * | 2006-11-10 | 2010-12-22 | 华为技术有限公司 | Dual-tone multi-frequency signal processing method and system |
| KR100826742B1 (en) * | 2006-11-17 | 2008-04-30 | 엘지노텔 주식회사 | Apparatus and method for controlling media gateway serving user interaction in mobile communication system |
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| CN1265607C (en) * | 2003-12-08 | 2006-07-19 | 华为技术有限公司 | Method for building up service tunnel in wireless local area network |
| CN101001193A (en) * | 2006-01-11 | 2007-07-18 | 华为技术有限公司 | Group broadcast desposition method between IPv6 islet and its equipment |
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| WO2010012141A1 (en) | 2010-02-04 |
| CN101336002A (en) | 2008-12-31 |
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