CN101018194A

CN101018194A - End-to-end signaling tracking method, system, soft switching and media gateway device

Info

Publication number: CN101018194A
Application number: CN200710002472.0A
Authority: CN
Inventors: 王强
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2007-01-24
Filing date: 2007-01-24
Publication date: 2007-08-15
Also published as: WO2008092375A1; CN101222738A

Abstract

The disclosed P2P signaling track method in next network comprises: A. a signaling track platform sends track task message carried user number to a soft exchange device; and B. the latter transmits received message to corresponding media gateway device to trace the corresponding signaling message and send traced message back to the platform; and the soft exchange device also traces self-corresponding signaling message according to user number to report to the platform. This invention overcomes defect in prior art.

Description

The method of end-to-end signaling tracking, system, soft switch and media gateway device

Technical field

The present invention relates to the network communications technology, particularly the method for end-to-end signaling tracking, system, soft switch and media gateway device.

Background technology

Next generation network (NGN, Next Generation Network) is a kind of business-driven type network, because IP technology rapid development, conventional telecommunication network will progressively become the marginal portion of grouping backbone network, use in order to support that new multimedia is commercial, conventional telecommunication network will be more and more open, and introduce many new functions and physical unit, and NGN is exactly the network configuration of this new network environment of reflection.

The network architecture that the NGN system adopts is comprehensive, open, merge by business and call out control and separate, call out control fully and separate fully with carrying, thereby realizes relatively independent business system, makes business be independent of network.

The NGN system is based on packet carrying network, and it is online that signaling and Media Stream all are carried on packet switching.The network model of NGN network using layering is divided into service management, network control, core exchange, the edge inserts four layers usually.Soft switch (Soft Switch) is positioned at network control layer, and media gateway (MediaGateway) is positioned at edge access layer.

At present, NGN system network element device is many, and it is wider to distribute, and call will pass through a plurality of network element devices.Existing elements equipment only can be followed the tracks of the transmitting-receiving situation of the signaling message of self, and message related to calls can't link up in different network element devices, and the tracking message of each network element device can not be concentrated, the tracking intuitively of the whole network so just can't be provided for the user, as long as go wrong,, can not grasp message to the equipment location because various device is distributed in different regions, so can not in time know the problem of the signaling message that is what equipment, it is very loaded down with trivial details to make the location get up.

In sum, at present in the NGN system, call will pass through a plurality of network element devices, and each network element device only can be followed the tracks of the transmitting-receiving situation of the signaling message of self, thereby can not carry out the tracking of whole network to the signaling message of all network element devices of call process.

Summary of the invention

Embodiments of the invention provide method, system, soft switch and the media gateway device of end-to-end signaling tracking, in order to solve that prior art exists in the NGN network, can not carry out the problem of whole network trace to signaling message.

The method of end-to-end signaling tracking comprises in a kind of next generation network:

A, signaling tracing platform send the tracing task message that comprises Subscriber Number to Softswitch;

The described tracing task message that B, described Softswitch will be received sends to corresponding media gateway device; After described media gateway device is received described tracing task message, follow the tracks of corresponding signaling message, send the message that self traces into to described signaling tracing platform; And described Softswitch sends the message that self traces into according to the signaling message of described Subscriber Number tracking self correspondence to described signaling tracing platform.

A kind of communication system is applied to the end-to-end signaling tracking in the next generation network, and this system comprises:

The signaling tracing platform is used for sending the tracing task message that comprises Subscriber Number to Softswitch;

Softswitch, the described tracing task message that is used for receiving send to corresponding media gateway device, and the signaling message according to described Subscriber Number tracking self correspondence sends the message that self traces into to described signaling tracing platform;

More than one media gateway device, be used to receive described tracing task message after, follow the tracks of corresponding signaling message, send the message that self traces into to described signaling tracing platform.

A kind of signaling tracing platform comprises:

Sending module is used for sending the tracing task message that comprises Subscriber Number to Softswitch;

Display module is used to show the tracking message from Softswitch and media gateway device.

A kind of Softswitch comprises:

First judge module is used for the tracing task message from the signaling tracking console is sent to corresponding described media gateway device;

First tracking module is used for following the tracks of corresponding signaling message according to described Subscriber Number;

First reporting module is used for sending the message that self traces into to described signaling tracing platform.

A kind of media gateway device comprises:

Second tracking module, be used to receive tracing task message from Softswitch after, follow the tracks of corresponding signaling message;

Second reporting module is used for sending the message that self traces into to the signaling tracing platform.

The signaling tracing platform that embodiments of the invention provided sends the tracing task message that comprises Subscriber Number to Softswitch; Softswitch sends the tracing task message of receiving to media gateway device, and the signaling message according to described Subscriber Number tracking self correspondence sends the message that self traces into to the signaling tracing platform; After media gateway device is received tracing task message, follow the tracks of corresponding signaling message, send the message that self traces into to the signaling tracing platform.Realized the unified tracking of Softswitch and media gateway device, thereby can carry out the tracking of whole network signaling message.

Description of drawings

Fig. 1 is system's connection diagram of end-to-end tracking signaling in the next generation network in the embodiment of the invention;

Fig. 2 A is the structural representation of signaling tracing platform in the embodiment of the invention;

Fig. 2 B is the structural representation of Softswitch in the embodiment of the invention;

Fig. 3 is the structural representation of media gateway device in the embodiment of the invention;

Fig. 4 is the method flow schematic diagram of end-to-end tracking signaling in the next generation network in the embodiment of the invention;

Fig. 5 A is the trace flow schematic diagram of agreement H.248 in the embodiment of the invention;

Fig. 5 B is the task checking process schematic diagram of agreement H.248 in the embodiment of the invention;

Fig. 5 C be in the embodiment of the invention H.248 agreement set the schematic flow sheet of call identification;

Fig. 5 D be in the embodiment of the invention H.248 the protocol media gateway device initiatively stop the schematic flow sheet of tracing task;

Fig. 6 A is the trace flow schematic diagram of MGCP in the embodiment of the invention;

Fig. 6 B is the task checking process schematic diagram of MGCP in the embodiment of the invention;

Fig. 6 C is the schematic flow sheet that MGCP sets call identification in the embodiment of the invention;

Fig. 6 D is the schematic flow sheet that the MGCP media gateway device initiatively stops tracing task in the embodiment of the invention.

Embodiment

At present prior art exist in the NGN network, can not carry out the problem of whole network trace to signaling message, the signaling tracing platform that embodiments of the invention provided sends the tracing task message that comprises Subscriber Number to Softswitch; Softswitch sends the tracing task message of receiving to media gateway device, and the signaling message according to Subscriber Number tracking self correspondence sends the message that self traces into to the signaling tracing platform; After media gateway device is received tracing task message, follow the tracks of corresponding signaling message, send the message that self traces into to the signaling tracing platform.Realize the unified tracking of Softswitch and media gateway device, thereby solved the problems referred to above.

As shown in Figure 1, end-to-end tracking system comprises in the next generation network in the embodiment of the invention: signaling tracing platform 10, Softswitch 20 and more than one media gateway device 30.

Signaling tracing platform 10 is connected with media gateway device 30 with Softswitch 20, is used for sending the tracing task message that comprises Subscriber Number to Softswitch 10.

Softswitch 20, be connected with media gateway device 30 with signaling tracing platform 10, be used for to receive that the tracing task message from signaling tracing platform 10 sends to corresponding media gateway device 30, signaling message according to Subscriber Number tracking self correspondence sends the message that self traces into to signaling tracing platform 10.

Media gateway device 30 is connected with Softswitch 20 with signaling tracing platform 10, be used to receive tracing task message from Softswitch 20 after, follow the tracks of corresponding signaling message, send the message that self traces into to signaling tracing platform 10.

Softswitch 20 and media gateway device 30 are after receiving tracing task message, can generate call identification, and the value of call identification is made as 1, and then Softswitch 20 and media gateway device 30 send to the signaling tracing platform together with call identification and the message that self traces into.

Can also comprise the protocol extension bag in the task tracking message that signaling tracing platform 10 sends, the protocol extension bag comprises: tracking mode, reference identification, file transfer protocol (FTP) address, tracing task checking time interval, tracing task report the time interval, inside story and tracking RTP Media Stream.

Protocol extension bag type is H.248 agreement or MGCP, and Softswitch 10 sends the corresponding protocols expanding packet according to the protocol type of media gateway device 30 to media gateway device 30.

If the protocol type of media gateway device is agreement H.248, then Softswitch is modification destination node request command (MOD REQ) or interpolation destination node order (ADD REQ) to the tracing task message that media gateway device sends, and tracing task is set up success message and followed the tracks of failed message is notice request event command (NOTIFY REQ).

If the protocol type of media gateway device is MGCP, then Softswitch is endpoint configurations order (EPCF) or the order that connects (CRCX) to the tracing task message that media gateway device sends, and tracing task is set up success message and followed the tracks of failed message is notification command (NTFY).

Shown in Fig. 2 A, signaling tracing platform 10 comprises in the embodiment of the invention: sending module 100 and display module 110.

Sending module 100 is connected with Softswitch 20, is used for sending the tracing task message that comprises Subscriber Number to Softswitch 20.

Display module 100 is connected with media gateway device 30 with Softswitch 20, is used to show the tracking message from the Subscriber Number correspondence of Softswitch 20 and media gateway device 30.

Shown in Fig. 2 B, Softswitch 20 comprises in the embodiment of the invention: first judge module 200, first tracking module 210, first reporting module 220, verification module 230 and first finish module 240.

First judge module 200, be connected with verification module 230 with signaling tracing platform 10, media gateway device 30, first tracking module 210, first reporting module 220, after being used to receive tracing task message from signaling tracing platform 10, give first tracking module 210, first reporting module 220 and verification module 230 with the tracing task forwards of receiving, determine media gateway device 30 according to the Subscriber Number in the tracing task message, tracing task message is sent to this media gateway device 30.

First tracking module 210 finishes module 240 with media gateway device 30, first judge module 200, first reporting module 220, verification module 230 and first and is connected, and is used for following the tracks of corresponding signaling message according to the Subscriber Number of tracing task message.

If tracing task message comprises the file transfer protocol (FTP) address, then first tracking module 210 is followed the tracks of corresponding signaling message according to Subscriber Number after receiving that tracing task is set up success message.

First reporting module 220 is connected with signaling tracing platform 10, first judge module 200 and first tracking module 210, is used for sending the message that first tracking module 210 traces into to signaling tracing platform 10.

If tracing task message comprises that tracking message reports the time interval, then first reporting module 220 reports the time interval according to tracking message, sends the message that first tracking module 210 traces into to signaling tracing platform 10.

Verification module 230, with media gateway device 30, first judge module 200 is connected with first tracking module 210, be used for when tracing task message comprises that the tracing task checking time at interval, in tracing task message, add tracking handle, and preserve reference identification in this tracking handle and the tracing task message, behind the tracking handle and reference identification received from media gateway device 30, check tracking handle and reference identification whether with preserve tracking handle and reference identification identical, if, then send verification succeeds message to Softswitch 30, otherwise, finish the tracing task of reference identification correspondence in first tracking module 210, and send the verification failed message to media gateway device 30.

First finishes module 240, be connected with signaling tracing platform 10, media gateway device 30 and first tracking module 210, be used for receiving that tracking mode from the tracing task message of signaling tracing platform 10 is for after closing, finish the tracing task of reference identification correspondence in first tracking module 210, and send tracing task message to the media gateway device 30 of correspondence according to Subscriber Number.

Wherein, first judge module 200 also comprises: modified module 2000, selection module 2010 and physical port sending module 2020.

Modified module 2000 is used for adding and revise the value of call identification in tracing task message when the signaling message that first tracking module 210 is followed the tracks of carries out talk business, and sends tracing task message to all media gateway devices 30 of talk business process.

Select module 2010, be used for determining the physical port of media gateway device 30 according to Subscriber Number.

Physical port sending module 2020, the tracing task message that is used for receiving send to the media gateway device corresponding physical port of selecting module 2010 to determine.

First tracking module 210 also comprises: first module 2100.

First module 2100, be used for when tracing task message comprises inside story and follows the tracks of the RTP Media Stream, judge the state of inside story and tracking RTP Media Stream, when the state of inside story and/or tracking RTP Media Stream is unlatching, follow the tracks of inside story and/or RTP Media Stream.

First finishes module 240 also comprises: receiver module 2400.

Receiver module 2400, be used to receive tracking failed message from media gateway device 30 after, finish corresponding tracing task.

As shown in Figure 3, media gateway device 30 comprises in the embodiment of the invention: second judge module 300, second tracking module 310, second reporting module 320, the 3rd reporting module 330, second finish module 340 and processing module 350.

Second judge module 300, be connected with the 3rd reporting module 330 with signaling tracing platform 10, Softswitch 20, second tracking module 310, second reporting module 320, after being used to receive tracing task message from the include file transmission protocol address of Softswitch 20, according to the file transfer protocol (FTP) address, connect with signaling tracing platform 10, after connection is set up successfully, send tracking message to second tracking module 310, the protocol extension bag is sent to second reporting module 320 and the 3rd reporting module 330.

Second tracking module 310, finish module 340 and be connected with Softswitch 20, second judge module 300, second reporting module 320, the 3rd reporting module 330, second with processing module 350, be used for behind the tracking message of receiving from second judge module 300, send tracing task to Softswitch 20 and set up success message, and follow the tracks of corresponding signaling message.

Second reporting module 320, be connected with signaling tracing platform 10, second judge module 300 and second tracking module 310, be used for when the tracing task message of receiving from second judge module 300 comprises that tracking message reports the time interval, report the time interval according to tracking message, send message that second tracking module 310 traces into and the reference identification in the protocol extension bag to signaling tracing platform 10.

The 3rd reporting module 330, be connected with Softswitch 20, second judge module 300 and second tracking module 310, be used for when the tracing task message of receiving from second judge module 300 comprises that the tracing task checking time at interval, according to the tracing task checking time at interval, tracking handle and reference identification are sent to Softswitch 20, behind the 20 verification failed messages of receiving from Softswitch, finish tracing task corresponding in second tracking module 310.

Second finishes module 340, is connected with second tracking module 310 with Softswitch 20, is used for after the tracing task message of receiving from Softswitch 20, when closing, finishes the tracing task of correspondence in second tracking module 310 in tracking mode.

Processing module 350 connects with second tracking module 310 with Softswitch 20, is used for when second tracking module 310 can not be followed the tracks of corresponding signaling message, sends to Softswitch 20 and follows the tracks of failed message.

Wherein, second tracking module 310 also comprises: second module 3100, physical port receiver module 3110 and trace port module 3120.

Second module 3100, be used for when tracing task message comprises inside story and follows the tracks of the RTP Media Stream, judge the state of inside story and tracking RTP Media Stream, when the state of inside story and/or tracking RTP Media Stream is unlatching, follow the tracks of inside story and/or RTP Media Stream.

Physical port receiver module 3110 is used for by the tracing task message of physical port reception from Softswitch 20.

Trace port module 3120 is used for following the tracks of the signaling message of corresponding physical port after physical port receiver module 3110 is received tracing task message.

As shown in Figure 4, in the embodiment of the invention in the next generation network method flow of end-to-end tracking comprise the following steps:

Step 400, signaling tracing platform send the tracing task message that comprises Subscriber Number to Softswitch.

Step 401, Softswitch are determined the physical port of media gateway device according to the Subscriber Number in the tracing task message after receiving tracing task message, and send tracing task message to the physical port of this media gateway device.

Step 402, Softswitch are followed the tracks of the signaling message of self corresponding physical port according to Subscriber Number, send the message that self traces into to the signaling tracing platform.

After step 403, media gateway device are received tracing task message, follow the tracks of the signaling message of corresponding physical port, send the message that self traces into to the signaling tracing platform.

Shown in Fig. 5 A, in the embodiment of the invention H.248 the trace flow of agreement comprise the following steps:

Step 500, signaling tracing platform send the tracing task message that comprises Subscriber Number and protocol extension bag to Softswitch.

The protocol extension bag comprises: tracking mode, reference identification, file transfer protocol (FTP) address, tracing task checking time interval, tracing task report the time interval, inside story and tracking RTP Media Stream.Wherein, inside story and tracking RTP Media Stream can not carry in the protocol extension bag, and then Softswitch and media gateway device are not followed the tracks of the inside story of physical port and followed the tracks of the RTP Media Stream; If inside story and tracking RTP Media Stream carry in the protocol extension bag, then Softswitch and media gateway device are checked the state of inside story or tracking RTP Media Stream, when state is unlatching, carries out corresponding tracking, otherwise do not follow the tracks of.

After step 501, Softswitch are received tracing task message, when the tracking mode of the protocol extension bag in tracking message is unlatching, the protocol type of checking corresponding media gateway device according to the Subscriber Number in the tracking message is agreement H.248, comprises the modification destination node request command of protocol extension bag to the physical port transmission of this media gateway device.

After step 502, media gateway device are received and revised the destination node request command, send modification destination node request response command to Softswitch.

When step 503, media gateway device are unlatching in the tracking mode of protocol extension bag, the end-to-end tracing task that starts corresponding physical port is set up incident, according to the file transfer protocol (FTP) address of the signaling tracing platform in the protocol extension bag, send the message that connects to the signaling tracing platform.

After step 504, signaling tracing platform are received the message that connects from media gateway device, send to this media gateway and to set up success message.

Step 505, media gateway device send the notice request event command to Softswitch after receiving the success message that connects, generate call identification, and the value of call identification is made as default value, and follow the tracks of the signaling message of corresponding physical port.

Step 506, media gateway device are after notified request event order, send the order of notice request event response to media gateway device, generate call identification, and the value of call identification is made as default value, follow the tracks of the signaling message of corresponding physical port according to Subscriber Number.

If the modification destination node request command in the step 501 is for adding the destination node order, then the modification destination node request response command in the step 502 is for adding the destination node response command.

If Softswitch need need to carry out the task verification in tracing process, then carry out in the embodiment of the invention the H.248 flow process of the task verification of agreement.

If in tracing process, the physical port of tracking need carry out talk business, then carries out in the embodiment of the invention flow process that agreement is H.248 set call identification.

If in tracing process, media gateway device can not normally be followed the tracks of physical port, then carries out in the embodiment of the invention flow process that protocol media gateway device H.248 initiatively stops tracing task.

If the signaling tracing platform need finish tracing task, then execution in step 507.

Step 507, signaling tracing platform send the tracing task message that comprises Subscriber Number and protocol extension bag to Softswitch.

After step 508, Softswitch are received tracing task message, the tracking mode of the protocol extension bag in tracking message is when closing, the protocol type of checking corresponding media gateway device according to the Subscriber Number in the tracking message is agreement H.248, send the modification destination node request command that comprises the protocol extension bag to the physical port of this media gateway device, and finish all or part of tracing task on the corresponding physical port according to Subscriber Number.

After step 509, media gateway device are received and are revised the destination node request command, send modification destination node request response command to Softswitch, the tracking mode of the protocol extension bag in tracking message finishes all or part of tracing task on the signaling message of corresponding physical port when closing.

Shown in Fig. 5 B, in the embodiment of the invention H.248 the task checking process of agreement comprise the following steps:

Step 520, media gateway device start the timed task verification incident of corresponding physical port according to the tracing task checking time in the protocol extension bag at interval, and the cycle sends the notice request event command that comprises reference identification and tracking handle to Softswitch.

After step 521, the notified request event order of Softswitch, check reference identification and tracking handle whether with the protocol extension bag in tracking handle and reference identification identical, if then the physical port to media gateway device sends the notice request event response order that comprises verification succeeds; Otherwise, finish the tracing task on the signaling message of reference identification correspondence, and send the notice request event response order that comprises the verification failure to the physical port of media gateway device.

Behind step 522, the notified request event response command of media gateway device, if verification succeeds, then the signaling message of corresponding physical port is followed the tracks of in continuation; Otherwise the signaling message of corresponding physical port is followed the tracks of in end.

Shown in Fig. 5 C, in the embodiment of the invention H.248 the agreement flow process of setting call identification comprise the following steps:

When step 530, Softswitch carry out talk business at the signaling message of the physical port of following the tracks of, revise the value of the call identification in the protocol extension bag, send the modification destination node request command that comprises amended protocol extension bag to the physical port of all media gateway devices of talk business process.

After step 531, media gateway device are received and revised the destination node request command, send modification destination node request response command to Softswitch.

Step 532, media gateway device are connected to the signaling tracing platform according to the file transfer protocol (FTP) address in the protocol extension bag of receiving.

Shown in Fig. 5 D, in the embodiment of the invention H.248 the protocol media gateway device flow process that initiatively stops tracing task comprise the following steps:

Step 540, media gateway device are in the time can not following the tracks of the signaling message of physical port, and the tracing task that starts corresponding physical port is forced the cancellation incident, send to Softswitch to comprise the notice request event command of following the tracks of failure cause.

After step 541, the notified request event order of Softswitch, to the physical port transmission notice request event response order of media gateway device.

Step 542, Softswitch finish the tracing task of corresponding physical port.

Start and revise destination node request command statement in the flow process:

MODIFY＝Physical-TerminationID{M{TS{E2ETrc/status＝ON，...}}，E＝××{E2ETrc/*}}

Start notice request event command statement in the flow process:

Notify＝Physical-TerminationID{OE＝××{E2ETrc/or{rid＝×××，th＝×××，ec＝OK}}}

Start and add the destination node command statement in the flow process:

ADD＝Physical-TerminationID{M{TS{E2ETrc/status＝ON，...}}，E＝××{E2ETrc/*}}

Finish the modification destination node request command statement of the whole tasks on the physical port in the process ends:

MODIFY＝Physical-TerminationID{M{TS{E2ETrc/status＝OFF}}，E＝××{E2ETrc/*}}

Finish the modification destination node request command statement of the part task on the physical port in the process ends:

MODIFY＝Physical-TerminationID{M{TS{E2ETrc/status＝OFF，E2ETrc/rid＝×××}}，E＝××{E2ETrc/*}}

Notice request event command statement in the task checking process:

Notify＝Physical-TerminationID{OE＝××{E2ETrc/totc{rid＝×××，th＝×××}}}

Set and revise destination node request command statement in the call identification flow process:

MODIFY＝Physical-TerminationID{M{TS{E2ETrc/status＝ON，E2ETrc/rid＝×××，E2ETrc/sid＝×××，...}}，E＝××{E2ETrc/*}}

Media gateway device initiatively stops notice request event command statement in the tracing task flow process:

Notify＝Physical-TerminationID{OE＝××{E2ETrc/fc{rid＝×××，th＝×××，cause＝USER}}}

Below be the concrete scheme of protocol extension bag H.248:

Bag name: end-to-end signaling tracking bag

Bag ID:E2ETrc (0x8100)

Describe:

Version: 1

Attribute-name: tracking task conditions

Property ID: status (0x0001)

Describe: tracking task conditions is set

Type: enumerate

Value: " ON " (0x0001) begins tracing task

" OFF " (0x0002) stops tracing task

Be defined in: the endpoint status descriptor

Characteristic: read-write

Attribute-name: reference identification

Property ID: rid (0x0002)

Describe: end-to-end track reference sign

Type: 32 bit sign integers

Value: integer more than or equal to 1

Be defined in: the endpoint status descriptor

Characteristic: read-write

Attribute-name: call identification

Property ID: sid (0x0003)

Describe: gateway uses call identification to represent that one is called out or session

Type: 32 bit sign integers

Value: integer more than or equal to 1

Be defined in: the endpoint status descriptor

Characteristic: read-write

Attribute-name: tracking handle

Property ID: th (0x0004)

Describe: to gateway only is to preserve, nonsensical, and MGC uses tracking handle to search ginseng

Examine sign

Type: 32 bit sign integers

Value: integer more than or equal to 1

Be defined in: the endpoint status descriptor

Characteristic: read-write

Attribute-name; Url

Property ID: url (0x0005)

Describe: FTP URL, the FTP URL of end-to-end tracking console

Type: character string

Value: the character string of maximum 512 characters.

Be defined in: the endpoint status descriptor

Characteristic: read-write

Attribute-name: tracking message reports the time interval

Property ID: rpint (0x0006)

Describe: tracking message reports the time interval of end-to-end tracking console

Type: 32 bit sign integers

Value: more than or equal to 30s

Be defined in: the endpoint status descriptor

Characteristic: read-write

Attribute-name: the tracing task checking time at interval

Property ID: ci (0x0007)

Describe: the tracing task checking time at interval

Type: 32 bit sign integers

Value: more than or equal to 30s

Be defined in: the endpoint status descriptor

Characteristic: read-write

Attribute-name: whether follow the tracks of inside story

Property ID: im (0x0008)

Describe: whether the indication gateway follows the tracks of inside story, and default value is " OFF ".

Type: enumerate

Value: " ON " (0x0001) follows the tracks of inside story

" OFF " (0x0002) do not follow the tracks of inside story

Be defined in: the endpoint status descriptor

Characteristic: read-write

Attribute-name: RTP Media Stream

Property ID: rtp (0x0009)

Describe: whether the indication gateway follows the tracks of the RTP Media Stream, and default value is " OFF ".

Type: enumerate

Value: " ON " (0x0001) follows the tracks of the RTP Media Stream

" OFF " (0x0002) do not follow the tracks of the RTP Media Stream

Be defined in: the endpoint status descriptor

Characteristic: read-write

Below be the tracking incident of the media gateway device of H.248 agreement:

Event name: end-to-end tracing task starts the result

Event id: or (0x0001)

Describe: end-to-end tracing task starts the result

Event descriptor parameter: none

The observed event descriptor parameters:

Parameter name: reference identification

Parameter I D:rid (0x0001)

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: tracking handle

Parameter I D:th (0x0002)

Describe: tracking handle

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: return code

Parameter I D:ec (0x0003)

Type: enumerate

Value: " 0K " (0x0001) starts tracing task successfully

" ERR " (0x0002) starts tracing task and fails

Event name: the overtime verification of tracing task

Event id: totc (0x0002)

Describe: the overtime verification of tracing task

Event descriptor parameter: none

The observed event descriptor parameters:

Parameter name: reference identification

Parameter I D:rid (0x0001)

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: tracking handle

Parameter I D:th (0x0002)

Type: 32 bit sign integers

Value: integer more than or equal to 1

Event name: end-to-end tracing task is forced cancellation

Event id: fc (0x0003)

Describe: end-to-end tracing task is forced cancellation

Event descriptor parameter: none

The observed event descriptor parameters:

Parameter name: reference identification

Parameter I D:rid (0x0001)

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: tracking handle

Parameter I D:th (0x0002)

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: cause value

Parameter I D:cause (0x0003)

Type: enumerate

Value: " USER " (0x0001) user's cancellation

" DIS " (0x0002) FTP connection failure

" OTHER " be other reasons (0x0003)

As shown in Figure 6A, the trace flow of MGCP comprises the following steps: in the embodiment of the invention

Step 600, signaling tracing platform send the tracing task message that comprises Subscriber Number and protocol extension bag to Softswitch.

The protocol extension bag comprises: tracking mode, reference identification, file transfer protocol (FTP) address, tracing task checking time interval, tracing task report the time interval, inside story and tracking RTP Media Stream.Wherein, inside story and tracking RTP Media Stream can not carry in the protocol extension bag, the then not inside story and tracking RTP Media Stream of tracking signaling message of Softswitch and media gateway device; If inside story and tracking RTP Media Stream carry in the protocol extension bag, then Softswitch and media gateway device are checked the state of inside story or tracking RTP Media Stream, when state is unlatching, carries out corresponding tracking, otherwise do not follow the tracks of.

After step 601, Softswitch are received tracing task message, when the tracking mode of the protocol extension bag in tracking message is unlatching, in expanding packet, add tracking handle and call identification, the protocol type of checking corresponding media gateway device according to the Subscriber Number in the tracking message is MGCP, comprises the endpoint configurations order of protocol extension bag to the physical port transmission of this media gateway device.

After step 602, media gateway device are received endpoint configurations order order, send the order of end points configuration response to Softswitch.

When step 603, media gateway device are unlatching in the tracking mode of protocol extension bag, the end-to-end tracing task that starts corresponding physical port is set up incident, according to the file transfer protocol (FTP) address of the signaling tracing platform in the protocol extension bag, send the message that connects to the signaling tracing platform.

After step 604, signaling tracing platform are received the message that connects from media gateway device, send to this media gateway and to set up success message.

Step 605, media gateway device send notification command to Softswitch after receiving the success message that connects, generate call identification, and the value of call identification is made as default value, and follow the tracks of the signaling message of corresponding physical port.

Step 606, media gateway device send the push-notification-answer order to media gateway device after notified order, generate call identification, and the value of call identification is made as default value, follow the tracks of the signaling message of corresponding physical port according to Subscriber Number.

If the endpoint configurations order in the step 601 is the order that connects, then the endpoint configurations response command in the step 602 is the connection response order.

If Softswitch need need to carry out the task verification in tracing process, then carry out the flow process of the task verification of MGCP in the embodiment of the invention.

If in tracing process, the physical port of tracking need carry out talk business, then carries out the flow process of MGCP setting call identification in the embodiment of the invention.

If in tracing process, media gateway device can not normally be followed the tracks of physical port, then carries out the flow process that MGCP media gateway device in the embodiment of the invention initiatively stops tracing task.

If the signaling tracing platform need finish tracing task, then execution in step 607.

Step 607, signaling tracing platform send the tracing task message that comprises Subscriber Number and protocol extension bag to Softswitch.

After step 608, Softswitch are received tracing task message, the tracking mode of the protocol extension bag in tracking message is when closing, the protocol type of checking corresponding media gateway device according to the Subscriber Number in the tracking message is MGCP, send the endpoint configurations order that comprises the protocol extension bag to the physical port of this media gateway device, and finish all or part of tracing task on the corresponding physical port according to Subscriber Number.

After step 609, media gateway device are received the endpoint configurations order, send the order of end points configuration response to Softswitch, the tracking mode of the protocol extension bag in tracking message finishes all or part of tracing task on the signaling message of corresponding physical port when closing.

If the endpoint configurations order in the step 608 is the deletion bind command, then Softswitch finishes whole tracing tasks of corresponding reference identification according to Subscriber Number.Endpoint configurations response command in the step 609 is the order of deletion connection response, and then media gateway device finishes the whole tracing tasks on the corresponding physical port.After Softswitch was received the order of deletion connection response, deletion was connected with media gateway device.

Shown in Fig. 6 B, the task checking process of MGCP comprises the following steps: in the embodiment of the invention

Step 620, media gateway device start the timed task verification incident of corresponding physical port according to the tracing task checking time in the protocol extension bag at interval, and the cycle sends the notification command that comprises reference identification and tracking handle to Softswitch.

After step 621, the notified event command of Softswitch, check reference identification and tracking handle whether with the protocol extension bag in tracking handle and reference identification identical, if then the physical port to media gateway device sends the push-notification-answer order that comprises verification succeeds; Otherwise, finish the tracing task of ginseng, and send the push-notification-answer order that comprises the verification failure to the physical port of media gateway device to the sign of taking an examination.

Behind step 622, the notified response command of media gateway device, if verification succeeds, then the signaling message of corresponding physical port is followed the tracks of in continuation; Otherwise the signaling message of corresponding physical port is followed the tracks of in end.

Shown in Fig. 6 C, the flow process of MGCP setting call identification comprises the following steps: in the embodiment of the invention

When step 630, Softswitch carry out talk business at the signaling message of the physical port of following the tracks of, revise the value of the call identification in the protocol extension bag, send the notice request order (RQNT) that comprises amended protocol extension bag to the physical port of all media gateway devices of talk business process.

Behind step 631, the notified request command of media gateway device, send the notice request response command to Softswitch.

Step 632, media gateway device are connected to the signaling tracing platform according to the file transfer protocol (FTP) address in the protocol extension bag of receiving.

Shown in Fig. 6 D, the flow process that the MGCP media gateway device initiatively stops tracing task in the embodiment of the invention comprises the following steps:

Step 640, media gateway device are in the time can not following the tracks of the signaling message of physical port, and the tracing task that starts corresponding physical port is forced the cancellation incident, send to Softswitch to comprise the notification command of following the tracks of failure cause.

After step 641, the notified order of Softswitch, to the physical port transmission push-notification-answer order of media gateway device.

Step 642, Softswitch finish the tracing task of corresponding physical port.

Start end points configuration order statement in the flow process:

EPCF?100?LocalEndpointName@DomainName?MGCP?1.0

B：e：mu

E2ETrc/status：ON

Start notification command statement in the flow process:

NTFY?1?LocalEndpointName@DomainName?MGCP?1.0

X：×××

O：E2ETrc/or(rid＝×××，th＝×××，ec＝OK)

Start the command statement that connects in the flow process:

CRCX?100?LocalEndpointName@DomainName?MGCP?1.0

X：×××

E2ETrc/status：ON

Finish the endpoint configurations command statement of the whole tasks on the physical port in the process ends:

EPCF?100?LocalEndpointName@DomainName?MGCP?1.0

B：e：mu

E2ETrc/status：OFF

Finish the endpoint configurations command statement of the part task on the physical port in the process ends:

EPCF?100?LocalEndpointName@DomainName?MGCP?1.0

B：e：mu

E2ETrc/status：OFF

E2ETrc/rid：×××

Deletion bind command statement in the process ends:

DLCX?100?LocalEndpointName@DomainName?MGCP?1.0

E2ETrc/status：OFF

E2ETrc/rid：×××

Notification command statement in the task checking process:

NTFY?1?LocalEndpointName@DomainName?MGCP?1.0

X：×××

O：E2ETrc/totc(rid＝×××，th＝×××)

Set notice request command statement in the call identification flow process:

RQNT?100?LocalEndpointName@DomainName?MGCP?1.0

X：×××

R：E2ETrc/*

E2ETrc/status：ON

E2ETrc/rid：×××

E2ETrc/sid：×××

Media gateway device initiatively stops notification command statement in the tracing task flow process:

NTFY?100?LocalEndpointName@DomainName?MGCP?1.0

X：×××

O：E2ETrc/fc(rid＝×××，th＝×××，cause＝USER)

Below be the concrete scheme of MGCP expanding packet:

Bag name: end-to-end signaling tracking bag

Bag ID:E2ETrc

Describe: the end-to-end signaling tracking bag

Version: 1

Expansion: None

Spreading parameter

Parameter name: tracking task conditions

Parameter I D:status

Describe: tracking task conditions is set

Type: enumerate

Value: " ON " begins tracing task

" OFF " finishes tracing task

Parameter name: reference identification

Parameter I D:rid

Describe: end-to-end track reference sign

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: call identification

Parameter I D:sid

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: tracking handle

Parameter I D:th

Describe: to gateway only is to preserve, nonsensical, and MGC uses tracking handle to search reference identification.

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: url

Parameter I D:url

Describe: FTP URL, the FTP URL of end-to-end tracking console

Type: character string

Value: the character string of maximum 512 characters

Parameter name: tracking message reports the time interval

Parameter I D:rpint

Type: 32 bit sign integers

Value: more than or equal to 30s

Parameter name: the tracing task checking time at interval

Parameter I D:ci

Describe: the tracing task checking time at interval

Type: 32 bit sign integers

Value: more than or equal to 30s

Parameter name: whether follow the tracks of inside story

Parameter I D:im

Describe: whether the indication gateway follows the tracks of inside story, and default value is " OFF "

Type: enumerate

Value:

" ON " follows the tracks of inside story

" OFF " do not follow the tracks of inside story

Parameter name: RTP Media Stream

Parameter I D:rtp

Describe: whether the indication gateway follows the tracks of the RTP Media Stream, and default value is " OFF "

Type: enumerate

Value: " ON " follows the tracks of the RTP Media Stream

" OFF " do not follow the tracks of the RTP Media Stream

Below be the tracking incident of the media gateway device of MGCP:

Event name: tracing task starts the result

Event id: or

Describe: tracing task starts the result

Request event parameter: none

The observed event parameter:

Parameter name: reference identification

Parameter I D:rid

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: tracking handle

Parameter I D:th

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: return code

Parameter I D:ec (0x0003)

Type: enumerate

Value: " OK " starts the tracing task success

" ERR " starts the tracing task failure

Event name: tracing task verification

Event id: totc

Request event parameter: none

The observed event parameter:

Parameter name: reference identification

Parameter I D:rid

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: tracking handle

Parameter I D:th

Type: 32 bit sign integers

Value: integer more than or equal to 1

Event name: tracing task is forced cancellation

Event id: fc

Request event parameter: none

The observed event parameter:

Parameter name: reference identification

Parameter I D:rid

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: tracking handle

Parameter I D:th

Type: 32 bit sign integers

Value: integer more than or equal to 1

Parameter name: tracing task cancellation reason

Parameter I D:cause

Type: enumerate

Value: " USER " user cancellation.

" DIS " FTP connects disconnection

" OTHER " other mistakes

From the invention described above embodiment as can be seen: the signaling tracing platform sends the tracing task message comprise Subscriber Number to Softswitch; Softswitch sends the tracing task message of receiving to media gateway device, and the signaling message according to Subscriber Number tracking self correspondence sends the message that self traces into to the signaling tracing platform; After media gateway device is received tracing task message, follow the tracks of corresponding signaling message, send the message that self traces into to the signaling tracing platform.Realized the unified tracking of Softswitch and media gateway device, thereby can carry out the tracking of whole network to signaling message, after going wrong, signaling message can know the problem of the signaling message appearance that is which equipment quickly and accurately, reduced difficulty, improved the speed of maintenance of equipment the equipment location.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1, the method for end-to-end signaling tracking in a kind of next generation network is characterized in that this method comprises:

2, the method for claim 1 is characterized in that, also comprises after the described step B:

Described signaling tracing platform shows the described tracking message of receiving.

3, the method for claim 1 is characterized in that, among the described step B, the described tracing task message that described Softswitch will be received comprises before sending to corresponding media gateway device:

Described Softswitch is determined the physical port of described media gateway device according to described Subscriber Number;

The described tracing task message that described Softswitch will be received sends to described media gateway device corresponding physical port;

Described media gateway device is followed the tracks of the signaling message of corresponding physical port.

4, the method for claim 1 is characterized in that, described tracing task message also comprises: the file transfer protocol (FTP) address among the then described step B, after described media gateway device is received described tracing task message, also comprises before the signaling message of tracking correspondence:

Connect according to described file transfer protocol (FTP) address and described signaling tracing platform, after connection is set up successfully, send tracing task to described Softswitch and set up success message;

Described Softswitch is after receiving that described tracing task is set up success message, according to the signaling message of described Subscriber Number tracking self correspondence.

5, the method for claim 1, it is characterized in that, described tracing task message also comprises: tracking message reports the time interval, among the then described step B, described media gateway device and described Softswitch report the time interval according to described tracking message, send the message that self traces into to described signaling tracing platform.

6, the method for claim 1 is characterized in that, described tracing task message also comprises: tracking mode and reference identification,

If described tracking mode is for opening, among the then described step B, described media gateway device and described Softswitch send to described signaling tracing platform together with reference identification and the message that self traces into;

If described tracking mode is for closing, then described step B comprises:

After described Softswitch is received described tracing task message, finish the tracing task of described reference identification correspondence, and according to the media gateway device transmission tracing task message of described Subscriber Number to correspondence, after described media gateway device is received described tracing task message, finish the tracing task of described reference identification correspondence.

7, method as claimed in claim 6, it is characterized in that, described tracing task message also comprises the tracing task checking time at interval, and among the then described step B, the described tracing task message that described Softswitch will be received also comprises before sending to corresponding media gateway device:

In the described tracing task message of receiving, add tracking handle;

Then described media gateway device sends to described Softswitch with described tracking handle and corresponding described reference identification according to described tracing task checking time at interval, after receiving the verification failed message, finishes the tracing task of self correspondence;

Whether described Softswitch is checked from the described tracking handle of described media gateway device and described reference identification identical with tracking handle and reference identification in the described tracing task message, if, then send verification succeeds message to described Softswitch, otherwise, finish the tracing task of self correspondence, and send the verification failed message to described media gateway device.

8, the method for claim 1, it is characterized in that, described tracing task message also comprises: inside story and tracking RTP Media Stream, if the state of described inside story or tracking RTP Media Stream is for opening, among the then described step B, described Softswitch and described media gateway device are followed the tracks of corresponding inside story and/or RTP Media Stream, with inside story and/or RTP Media Stream, the message that traces into self sends to described signaling tracing platform together.

9, the method for claim 1 is characterized in that, if the signaling message that described Softswitch is followed the tracks of carries out talk business, also comprises after the then described step B:

C1, described Softswitch add and revise the value of call identification in described tracing task message, and send the tracing task message of the call identification that comprises described modification to the described media gateway devices of all of described talk business process, described call identification and the message that self traces into are sent to described signaling tracing platform together;

After C2, described media gateway device are received described tracing task message, described call identification and the message that self traces into are sent to described signaling tracing platform together.

10, the method for claim 1 is characterized in that, if described media gateway device can not be followed the tracks of corresponding signaling message, then described media gateway device sends to described Softswitch and follows the tracks of failed message;

Then described Softswitch stops corresponding tracing task after receiving that failed message is followed the tracks of at the institute family.

11, the method for claim 1, it is characterized in that, if the protocol type of media gateway device is agreement H.248, the described tracing task message that then described Softswitch sends to described media gateway device is for revising the destination node request command or adding the destination node order;

If the protocol type of media gateway device is MGCP MGCP, then described Softswitch is the endpoint configurations order or the order that connects to the described tracing task message that described media gateway device sends.

12, method as claimed in claim 5 is characterized in that, if the protocol type of media gateway device is agreement H.248, it is the notice request event command that then described tracing task is set up success message;

If the protocol type of media gateway device is MGCP, it is notification command that then described tracing task is set up success message.

13, method as claimed in claim 10 is characterized in that, if the protocol type of media gateway device is agreement H.248, then described tracking failed message is the notice request event command;

If the protocol type of media gateway device is MGCP, then described tracking failed message is a notification command.

14, a kind of communication system is applied to the end-to-end signaling tracking in the next generation network, it is characterized in that, this system comprises:

15, system as claimed in claim 14 is characterized in that, described Softswitch comprises:

First judge module, the described tracing task message that is used for receiving send to corresponding described media gateway device;

First reporting module is used for sending the message that self traces into to described signaling tracing platform;

Described media gateway device comprises:

Second tracking module, be used to receive described tracing task message after, follow the tracks of corresponding signaling message;

Second reporting module is used for sending the message that self traces into to described signaling tracing platform.

16, system as claimed in claim 14 is characterized in that, described signaling tracing platform also comprises:

Display module is used to show the described tracking message of receiving.

17, system as claimed in claim 15 is characterized in that, described first judge module comprises:

Select module, be used for determining the physical port of described media gateway device according to described Subscriber Number;

Physical port sending module, the described tracing task message that is used for receiving send to the described media gateway device corresponding physical port that described selection module is determined;

Then described second tracking module comprises:

The physical port receiver module is used for receiving described tracing task message by physical port;

The trace port module is used for following the tracks of the signaling message of corresponding physical port after described physical port receiver module is received described tracing task message.

18, system as claimed in claim 15 is characterized in that, described tracing task message also comprises: the file transfer protocol (FTP) address, and then described media gateway device comprises:

Second judge module, be used to receive described tracing task message after, according to described file transfer protocol (FTP) address, connect with described signaling tracing platform, connect sets up successfully after, set up success message to described Softswitch transmission tracing task;

Described first tracking module is followed the tracks of corresponding signaling message according to described Subscriber Number after receiving that described tracing task is set up success message.

19, system as claimed in claim 15, it is characterized in that, described tracing task message also comprises: tracking message reports the time interval, then described first reporting module and described second reporting module report the time interval according to described tracking message, send the message that traces into to described signaling tracing platform.

20, system as claimed in claim 15, it is characterized in that, described tracing task message also comprises: tracking mode and reference identification, if described tracking mode is for opening, then described first reporting module and described second reporting module send to described signaling tracing platform together with reference identification and the message that traces into;

If described tracking mode is for closing, then described Softswitch comprises:

First finishes module, is used to finish the tracing task of described reference identification correspondence, and sends tracing task message according to described Subscriber Number to the media gateway device of correspondence;

Then described media gateway device comprises:

Second finishes module, is used to finish the tracing task of described reference identification correspondence.

21, system as claimed in claim 20 is characterized in that, described tracing task message also comprises: tracing task checking time interval, and then described Softswitch also comprises:

The verification module, be used for adding tracking handle in described tracing task message, check receive whether identical with tracking handle and reference identification in the described tracing task message from the described tracking handle of described media gateway device and described reference identification, if, then send verification succeeds message to described Softswitch, otherwise, finish the tracing task of self correspondence, and send the verification failed message to described media gateway device;

Then described media gateway device also comprises:

The 3rd reporting module is used for according to described tracing task checking time at interval, and described tracking handle and corresponding described reference identification are sent to described Softswitch, after receiving the verification failed message, finishes the tracing task of self.

22, system as claimed in claim 15 is characterized in that, described tracing task message also comprises: inside story and tracking RTP Media Stream,

Then described first tracking module also comprises:

First module, the state that is used to judge inside story and follows the tracks of the RTP Media Stream when the state of inside story and/or tracking RTP Media Stream is unlatching, is followed the tracks of inside story and/or RTP Media Stream;

Then described second tracking module also comprises:

Second module, the state that is used to judge inside story and follows the tracks of the RTP Media Stream when the state of inside story and/or tracking RTP Media Stream is unlatching, is followed the tracks of inside story and/or RTP Media Stream.

23, system as claimed in claim 15 is characterized in that, if the signaling message that described first tracking module is followed the tracks of carries out talk business, then described first judge module also comprises:

Modified module is used for adding and revising in described tracing task message the value of call identification, and sends the tracing task message of the call identification that comprises described modification to all described media gateway devices of described talk business process;

Then described first reporting module sends to described signaling tracing platform together with described call identification and the message that traces into;

Then described second reporting module sends to described signaling tracing platform together with described call identification and the message that traces into.

24, system as claimed in claim 15 is characterized in that, if described second tracking module can not be followed the tracks of corresponding signaling message, then described media gateway device also comprises:

Processing module is used for sending the tracking failed message to described Softswitch;

Then described first finishes module also comprises:

Receiver module, be used to receive described tracking failed message after, finish corresponding tracing task.

25, system as claimed in claim 14, it is characterized in that, if the protocol type of media gateway device is agreement H.248, the described tracing task message that then described Softswitch sends to described media gateway device is for revising the destination node request command or adding the destination node order;

26, system as claimed in claim 18 is characterized in that, if the protocol type of media gateway device is agreement H.248, it is the notice request event command that then described tracing task is set up success message;

27, system as claimed in claim 24 is characterized in that, if the protocol type of media gateway device is agreement H.248, then described tracking failed message is the notice request event command;

28, a kind of signaling tracing platform is characterized in that, this signaling tracing platform comprises:

Display module is used to show the tracking message from the described Subscriber Number correspondence of Softswitch and media gateway device.

29, a kind of Softswitch is characterized in that, this Softswitch comprises:

30, Softswitch as claimed in claim 29 is characterized in that, described first judge module comprises:

Physical port sending module, the described tracing task message that is used for receiving send to the described media gateway device corresponding physical port that described selection module is determined.

31, Softswitch as claimed in claim 29, it is characterized in that, described tracing task message also comprises: corresponding signaling message is followed the tracks of according to described Subscriber Number in file transfer protocol (FTP) address, then described first tracking module after receiving that tracing task is set up success message.

32, Softswitch as claimed in claim 29, it is characterized in that, described tracing task message also comprises: tracking message reports the time interval, and then described first reporting module reports the time interval according to described tracking message, sends the message that traces into to described signaling tracing platform.

33, Softswitch as claimed in claim 29, it is characterized in that, described tracing task message also comprises: tracking mode and reference identification, if described tracking mode is for opening, then described first reporting module sends to described signaling tracing platform together with reference identification and the message that self traces into;

If described tracking mode is for closing, then described Softswitch comprises:

First finishes module, be used in described tracking mode finishing the tracing task of described reference identification correspondence when closing, and according to the media gateway device transmission tracing task message of described Subscriber Number to correspondence.

34, Softswitch as claimed in claim 33 is characterized in that, described tracing task message also comprises the tracing task checking time at interval, and then described Softswitch comprises:

The verification module, be used for adding tracking handle in tracing task message, check receive whether identical with tracking handle and reference identification in the described tracing task message from the described tracking handle of described media gateway device and described reference identification, if, then send verification succeeds message to described Softswitch, otherwise, finish the tracing task of self corresponding physical port, and send the verification failed message to described media gateway device.

35, Softswitch as claimed in claim 29 is characterized in that, described tracing task message also comprises: inside story and tracking RTP Media Stream, and then described first tracking module also comprises:

First module, the state that is used to judge inside story and follows the tracks of the RTP Media Stream when the state of inside story and/or tracking RTP Media Stream is unlatching, is followed the tracks of inside story and/or RTP Media Stream.

36, Softswitch as claimed in claim 29 is characterized in that, if the physical port that described first tracking module is followed the tracks of carries out talk business, then described first judge module also comprises:

Modified module is used for the value at described tracing task message interpolation and modification call identification, and sends the described tracing task message that comprises the call identification of described modification to all described media gateway devices of described talk business process;

Then described first reporting module sends to described signaling tracing platform together with described call identification and the message that self traces into.

37, Softswitch as claimed in claim 33 is characterized in that, described first finishes module also comprises:

38, a kind of media gateway device is characterized in that, this media gateway device comprises:

39, media gateway device as claimed in claim 38 is characterized in that, described second tracking module also comprises:

The physical port receiver module is used for by the tracing task message of physical port reception from described Softswitch;

40, media gateway device as claimed in claim 38 is characterized in that, described tracing task message also comprises: the file transfer protocol (FTP) address, and then described media gateway device comprises:

Second judge module, be used to receive described tracing task message after, according to described file transfer protocol (FTP) address, connect with described signaling tracing platform, connect sets up successfully after, set up success message to described Softswitch transmission tracing task.

41, media gateway device as claimed in claim 38, it is characterized in that, described tracing task message also comprises: tracking message reports the time interval, and then described second reporting module reports the time interval according to described tracking message, sends the message that traces into to described signaling tracing platform.

42, media gateway device as claimed in claim 38, it is characterized in that, described tracing task message also comprises: tracking mode and reference identification, if described tracking mode is unlatching, then second reporting module sends to described signaling tracing platform together with reference identification and the message that traces into;

If described tracking mode is for closing, then described media gateway device comprises:

43, media gateway device as claimed in claim 42 is characterized in that, described tracing task message also comprises: tracing task checking time interval, and then described media gateway device also comprises:

The 3rd reporting module is used for according to described tracing task checking time at interval, and described tracking handle and corresponding described reference identification are sent to described Softswitch, after receiving the verification failed message, finishes the tracing task of self correspondence.

44, media gateway device as claimed in claim 38 is characterized in that, described tracing task message also comprises: inside story and tracking RTP Media Stream, and then described second tracking module also comprises:

45, media gateway device as claimed in claim 38 is characterized in that, if comprise in the tracing task message from described Softswitch: and call identification,

46, media gateway device as claimed in claim 38 is characterized in that, if described second tracking module can not be followed the tracks of corresponding signaling message, then described media gateway device also comprises:

Processing module is used for sending the tracking failed message to described Softswitch.