CN101917302B - Method and system for reducing call disconnection caused by transient interruption of terminal media - Google Patents
Method and system for reducing call disconnection caused by transient interruption of terminal media Download PDFInfo
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- CN101917302B CN101917302B CN201010219204.6A CN201010219204A CN101917302B CN 101917302 B CN101917302 B CN 101917302B CN 201010219204 A CN201010219204 A CN 201010219204A CN 101917302 B CN101917302 B CN 101917302B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0604—Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time
- H04L41/0622—Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time based on time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/102—Gateways
- H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention provides a method and a system for reducing call connection caused by transient interruption of terminal media. The method comprises the following steps that: a media gateway receives a newly added network failure detection event which carries a transient interruption judging time and is transmitted by a media gateway controller, and performs the newly added network failure detection event; the media gateway detects a network failure and monitors the network recovery condition in the transient interruption judging time; and when detecting network recovery in the transient interruption judging time, the media gateway judges the transient interruption of a network and restarts to perform the newly added network failure detection event. According to the method and the system of the invention, when detecting the network failure, the media gateway waits for a certain time according to time parameters in the detection event and then encodes to report if the network failure does not recover in a time range specified by the media gateway controller, so the number of increased exchanged messages due to network failure detection is reduced, and the burden of the network is reduced.
Description
Technical field
The present invention relates in the communication field of employing control and the networking of bearing separation structure thought, provide a kind of method and system of effective minimizing call disconnection caused by transient interruption of terminal media.
Background technology
Along with communication system is in the increasingly extensive application of the every field such as economic and social life, communication system technology itself is also among fast development, no matter be the No.3 generation mobile communication system progressively spread out, or increasingly mature perfect IMS (IP Multimedia Subsystem, IP multimedia system) system, technical development is meeting the demand of user for communication system day by day.Current industry is extensively admitted, follow-on communication system controls being one and carrying the network be separated, its essential characteristic is MGC (Media Gateway Controller by the device separates of traditional control and call packing, Media Gateway Controller) and MGW (Media Gateway, media gateway) two parts, Media Gateway Controller wherein can pass through MGCP (H.248/MEGACO) and complete control to media gateway, carries out the realization of basic call and new business thereof.
MGCP (H.248/MEGACO) is exactly be used widely as the main medium gateway protocol between gateway controller and gateway.It define context Context, terminal Termination, stream Stream, signal Signals, the descriptor concepts such as event Event, wherein event descriptor (Event) comprises the event of one group of Media Gateway Controller request detection and report.In order to media gateway can be controlled flexibly, various event is detected, MGCP (H.248/MEGACO) also allows constantly to define new bag Package or the event of expanding existing bag is used as the event of Media Gateway Controller request detection, requires that media gateway triggers and reports.
Controlling in the network be separated with carrying, due to reasons such as network qualities, in conversation procedure, the interruption of media may be there is, for this situation, but also occur in the situation of permanent calculation of fees if do not take appropriate means process that user will be caused cannot to have conversed, and due to invalid call continue take resource, also cause the waste of resource.Current H.248 agreement, for this situation presented above, takes following solution:
Media Gateway Controller use Network Fault Detection event (nt/netfail) detects the network state in media gateway, to grasp the upper network failure situation of media gateway in time, thus the infecctive call problem that solution media break of adopting an effective measure causes.Main handling process is as follows, and Media Gateway Controller customized Network Fault Detection event (nt/netfail) can require that media gateway is to perform detection when call setup.When media gateway finds current network failure, can by Network Fault Detection event (nt/netfail) notice reporting to Media Gateway Controller, Media Gateway Controller receives this notification message, learn that bottom-layer network breaks down, the session of correspondence directly can be discharged, in accompanying drawing 1, we describe the idiographic flow of above-mentioned detection event.
Network Fault Detection event flow process (shown in Fig. 1):
101: Media Gateway Controller issues customized Network Fault Detection event (nt/netfail) in Add or Modify Req order;
102: this detection event of media gateway handles, start to perform this detection event, return corresponding response message Add/Modify rpl to Media Gateway Controller;
103: media gateway detects network failure;
104: media gateway coding notification message Notfy Req reports Media Gateway Controller;
105: after Media Gateway Controller receives the notification message of media gateway, releasing session;
106: Media Gateway Controller returns notice response message Nodify rpl to media gateway;
107: Media Gateway Controller issues Subtract order, require media gateway releasing session;
108: media gateway release local data district, returns Subtract command response.
The program can Sampling network fault effectively, thus discharges the infecctive call caused because media are obstructed in time, has both avoided the loss that user keeps infecctive call, and has released resource again, and reduced the wasting of resources, improve the utilization rate of resource.But IP (Internet Protocol, the Internet protocol) network of reality is often along with the factor such as time delay, shake, and recover again normal situation in the very short time of having no progeny in often having and occur, we are referred to as hit this situation.The area deficienter at some Internet resources or network condition is poor, this situation may be relatively more frequent, but reality does not affect the carrying out of call, if adopt existing mode, call can be caused directly to be released cannot be continued.
Visible, Media Gateway Controller have subscribed Network Fault Detection event (nt/netfail) when setting up calling, when media gateway detects network failure, coding Notify notification message carries network failure and observes event (nt/netfail), reports Media Gateway Controller, after Media Gateway Controller receives the notification message of media gateway, learn that bottom-layer network breaks down, the session of correspondence directly can be discharged, user conversation terminates, and broken words occur.If but current network state is unstable, after there is network failure, within user's acceptable time, network is recovered, in this case session is affected hardly, if and now Media Gateway Controller has customized Network Fault Detection event (nt/netfail) when setting up session, after media gateway detects and network failure occurs, can notify Media Gateway Controller, after Media Gateway Controller is notified, the direct releasing session of meeting, causes unnecessary broken words.The reason that situation described above occurs is, for Network Fault Detection, Network Fault Detection event is only there is in agreement, but not about the processing spec of hit, when Media Gateway Controller receives the notice reporting of media gateway for network failure, closedown session that can be simple and crude, has no idea to determine whether hit.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method and system reducing call disconnection caused by transient interruption of terminal media, effectively differentiates process hit, reduces the broken words caused because of hit, effectively increase customer satisfaction degree.
In order to solve the problems of the technologies described above, the invention provides a kind of method reducing call disconnection caused by transient interruption of terminal media, described method comprises:
Media gateway receives the newly-increased Network Fault Detection event carrying transient interruption judging time that Media Gateway Controller issues, and performs described newly-increased Network Fault Detection event;
Media gateway detects and there occurs network failure, monitor network recovery in described transient interruption judging time;
When media gateway detects network recovery in described transient interruption judging time, then think that network hit, media gateway restart to perform described newly-increased Network Fault Detection event.
Furthermore, media gateway also comprises step after monitor network recovery in described transient interruption judging time:
Also network recovery do not detected when media gateway exceedes transient interruption judging time, then think the non-hit of network, and the network failure notice Media Gateway Controller of non-hit that will detect.
Furthermore, the newly-increased Network Fault Detection event of transient interruption judging time that what described Media Gateway Controller issued carry, specifically refers to that Media Gateway Controller orders by increasing (Add) order or revising (Modify) the newly-increased Network Fault Detection process event carrying transient interruption judging time issued to media gateway.
Furthermore, described media gateway is following any one:
Based on the media gateway of the Ia interface between the strategy decisive function (SPDF) of service and borde gateway (BGF) in IP Multimedia System (IMS) territory, the media of IMS domain inside control the media gateway of the Mp between resource function (MRFC) and the media resource function (MRFP) of IMS domain inside, and in IMS domain, MGCF (MGCF) is to the media gateway for the control interface of media gateway in the intercommunication control interface of legacy public switched telephone net/lattice network exchange (PSTN/CS) network and soft switch.
In order to solve the problems of the technologies described above, present invention also offers a kind of system reducing call disconnection caused by transient interruption of terminal media, comprising:
Media Gateway Controller, for issuing newly-increased Network Fault Detection event, wherein carries transient interruption judging time;
Media gateway, for the newly-increased Network Fault Detection event that receiving media gateway controller issues, performs described newly-increased Network Fault Detection event; Network failure is there occurs, monitor network recovery in transient interruption judging time when detecting; When network recovery being detected in transient interruption judging time, then think and restart network hit to perform newly-increased Network Fault Detection event.
Furthermore,
Described media gateway, also for also network recovery not detected when exceeding transient interruption judging time, notice Media Gateway Controller detects the network failure of non-hit.
Furthermore,
Described Media Gateway Controller, for issuing Network Fault Detection process event in Add or Modify order.
In order to solve the problems of the technologies described above, present invention also offers a kind of media gateway reducing call disconnection caused by transient interruption of terminal media, comprising:
Receiver module, for the newly-increased Network Fault Detection event carrying transient interruption judging time that receiving media gateway controller issues;
Executive Module, for performing described newly-increased Network Fault Detection event, if network failure detected, then monitor network recovery in described transient interruption judging time;
Judge module, for network recovery being detected when Executive Module in described transient interruption judging time, then thinks and notifies that Executive Module restarts monitor network recovery in described transient interruption judging time by network hit.
Furthermore,
Described judge module also for exceeding transient interruption judging time also network recovery do not detected when Executive Module, then thinks the non-hit of network, and the network failure notice Media Gateway Controller of non-hit that will detect.
Furthermore,
Described receiver module, for the newly-increased Network Fault Detection process event carrying transient interruption judging time that receiving media gateway controller is issued to media gateway by Add order or Modify order.
The method of the invention and system, when media gateway detects the generation of network failure, direct coding notification message does not report, but according to the time parameter in detection event, wait for certain duration, just can encode when network failure does not recover within the scope of the duration that Media Gateway Controller specifies and report, which reduces the interacting message quantity increased by Network Fault Detection, reduce network burden.The present invention is by the method for the expanding packet of an expansion nt bag, effective identification hit, reduce the broken words because hit causes, scheme is simple, flexible, reach the judgement of network hit and the detection of network failure by minimum interacting message, be conducive to Media Gateway Controller and more effectively control media gateway, the further development promoting control and the networking of bearing separation structure thought, effectively improves user satisfaction.
Accompanying drawing explanation
Fig. 1 is the network fault detecting method flow chart of prior art.
Fig. 2 is network fault detecting method flow chart of the present invention.
The process flow figure of the present invention that Fig. 3 is network condition when being hit.
The process flow figure of the present invention that Fig. 4 is network condition when being fault.
Fig. 5 is the structural representation of media gateway of the present invention.
Embodiment
Main thought of the present invention is: in order to improve current process, by the method for expanding packet, provide a kind of network fault detecting method, can effectively differentiate and process hit and general network failure, thus reduces the broken words caused because of hit.In order to realize this function, make media gateway can judge network failure character, in time by the network fault reporting of non-hit to Media Gateway Controller, nt bag can be extended, the basis of nt bag proposes the conception of newly-increased Network Fault Detection pack processing, and the duration determining whether hit in Media Gateway Controller is brought media gateway by a design parameter in this bag.
Below in conjunction with the drawings and specific embodiments, the method for the invention is described further.
With reference to shown in Fig. 2, it is the method flow diagram of minimizing call disconnection caused by transient interruption of terminal media of the present invention.Main realization flow is divided into two kinds of situations, namely network failure user can accept within time range recover and network failure can accept to recover outside time range user, said method comprising the steps of:
Step 201: Media Gateway Controller issues the newly-increased Network Fault Detection event that the present invention proposes in Add (increase) or Modify (amendment) order, wherein carries transient interruption judging time T;
Step 202: the newly-increased Network Fault Detection event that media gateway handles Media Gateway Controller issues, starts to perform this detection event;
Step 203: media gateway detects the generation of network failure, record network state, stand-by period T carrys out monitor network recovery;
Step 204: judge whether to have exceeded waiting time T, if exceeded waiting time T also network recovery do not detected, has performed step 206; In T time, if network recovery detected, then think and enter step 205 by network hit;
Step 205: media gateway restarts to perform newly-increased Network Fault Detection event, repeats step 202;
Step 206: show that now media gateway has detected the network failure of non-hit, then notification message notice of encoding Media Gateway Controller, flow process terminates.
In described step 201, when Media Gateway Controller issues the newly-increased Network Fault Detection event of the present invention's proposition, carry transient interruption judging time, this duration issues control by Media Gateway Controller simultaneously, can, according to different scenes and network demand amendment, control relatively flexible.
With reference to shown in Fig. 3, be the process flow figure of the present invention when network condition is hit.Show the flow process by newly-increased Network Fault Detection event handling network hit, comprise the following steps:
301: Media Gateway Controller passes through Add or Modify order, the newly-increased Network Fault Detection event that customized the present invention simultaneously proposes, and carry transient interruption judging time parameter T;
302: newly-increased Network Fault Detection event described in media gateway handles, starts to perform customized detection event;
303: media gateway successfully processes the backward Media Gateway Controller of Add or Modify order and returns successful response message;
304: media gateway detects network failure, wait for whether transient interruption judging time T arrives;
305: in transient interruption judging time T, media gateway detects network disaster recovery, stops waiting for;
306: media gateway restarts to detect customized newly-increased Network Fault Detection event, and repeated execution of steps 304, process terminates.
The process flow figure of the present invention that Fig. 4 is network condition when being fault.Show the flow process by newly-increased Network Fault Detection event handling network failure, comprise the following steps:
401: Media Gateway Controller passes through Add or Modify order, the newly-increased Network Fault Detection event that customized the present invention simultaneously proposes, and carry transient interruption judging time parameter T;
402: newly-increased Network Fault Detection event described in media gateway handles, starts to perform customized detection event;
403: media gateway successfully processes the backward Media Gateway Controller of Add or Modify order and returns successful response message;
404: media gateway detects network failure, wait for whether transient interruption judging time T arrives;
405: when transient interruption judging time T arrives, network failure does not also recover, the newly-increased Network Fault Detection notification message that the invention of media gateway code book proposes;
406: this newly-increased Network Fault Detection notification message of Media Gateway Controller process, requires releasing session;
407: Media Gateway Controller returns notice response message to media gateway;
408: Media Gateway Controller releasing session, issue Subtract request;
409: after media gateway receives the Subtract request of Media Gateway Controller, successfully process, return response message to Media Gateway Controller, process terminates.
Application of the present invention is extensive, comprise as (the Service-based PolicyDecision Function of SPDF in IMS domain, based on service strategy decisive function) and BGF (borde gateway) between Ia interface, Mp between MRFC (media of IMS domain inside control resource function) and MRFP (media resource function of IMS domain inside), MGCF (Media Gateway ControlFunction in IMS domain, MGCF) to being all realize based on MGCP for the control of media gateway etc. interface in the intercommunication control interface of traditional PSTN/CS (public switch telephone network/lattice network exchange) network and soft switch, all be suitable for the method for the invention.
Present invention also offers a kind of system reducing call disconnection caused by transient interruption of terminal media, comprising:
Media Gateway Controller, for issuing newly-increased Network Fault Detection event, wherein carries transient interruption judging time;
Media gateway, for the newly-increased Network Fault Detection event that receiving media gateway controller issues, performs described newly-increased Network Fault Detection event; Network failure is there occurs, record network state, monitor network recovery in transient interruption judging time when detecting; When network recovery being detected in transient interruption judging time, then think and restart network hit to perform newly-increased Network Fault Detection event.
Described media gateway, also for also network recovery not detected when exceeding transient interruption judging time, coding notification message notice Media Gateway Controller detects the network failure of non-hit.
Described Media Gateway Controller, for issuing Network Fault Detection process event in Add or Modify order.
Described Media Gateway Controller, according to different scene and network demand amendment transient interruption judging time.
Present invention also offers a kind of media gateway reducing call disconnection caused by transient interruption of terminal media, Fig. 5 is the structural representation of media gateway of the present invention.Described media gateway comprises:
Receiver module 50, for the newly-increased Network Fault Detection event carrying transient interruption judging time that receiving media gateway controller issues;
Executive Module 51, for performing described newly-increased Network Fault Detection event, if network failure detected, then monitor network recovery in described transient interruption judging time; ;
Judge module 52, for network recovery being detected when Executive Module 51 in described transient interruption judging time, then thinks and notifies that Executive Module restarts monitor network recovery in described transient interruption judging time by network hit.
In a preferred embodiment of the invention, described judge module 52 is not also for also network recovery being detected when Executive Module 51 exceedes transient interruption judging time, then think the non-hit of network, and the network failure notice Media Gateway Controller of non-hit that will detect.
In a preferred embodiment of the invention, described receiver module 50, for the newly-increased Network Fault Detection process event carrying transient interruption judging time that receiving media gateway controller is issued to media gateway by Add order or Modify order.
Adopt method and system of the present invention, can effectively reduce the broken words caused due to media hit, greatly improve the Experience Degree of client.Simultaneously the method expands again the bag in H.248 agreement, H.248 agreement is made can more effectively to apply to Media Gateway Controller and media gateway, also make Media Gateway Controller better can control media gateway, control and the networking of bearing separation structure thought are further developed.
Certainly; the present invention is not confined to apply in the hit occasion of media gateway; other multiple example can also be had; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make corresponding change and distortion according to the present invention, but these change and are out of shape the protection range of the claim all belonged to appended by the present invention.
Claims (10)
1. reduce a method for call disconnection caused by transient interruption of terminal media, it is characterized in that, described method comprises:
Media gateway receives the newly-increased Network Fault Detection event carrying transient interruption judging time that Media Gateway Controller issues, and performs described newly-increased Network Fault Detection event;
Media gateway detects and there occurs network failure, monitor network recovery in described transient interruption judging time;
When media gateway detects network recovery in described transient interruption judging time, then think that network hit, media gateway restart to perform described newly-increased Network Fault Detection event;
Described transient interruption judging time, is revised according to different scenes and network demand by described Media Gateway Controller.
2. the method for claim 1, is characterized in that, media gateway also comprises step after monitor network recovery in described transient interruption judging time:
Also network recovery do not detected when media gateway exceedes transient interruption judging time, then think the non-hit of network, and the network failure notice Media Gateway Controller of non-hit that will detect.
3. the method for claim 1, it is characterized in that, the newly-increased Network Fault Detection event of transient interruption judging time that what described Media Gateway Controller issued carry, specifically refers to that Media Gateway Controller orders by increasing (Add) order or revising (Modify) the newly-increased Network Fault Detection process event carrying transient interruption judging time issued to media gateway.
4. the method for claim 1, is characterized in that, described media gateway, is following any one:
Based on the media gateway of the Ia interface between the strategy decisive function (SPDF) of service and borde gateway (BGF) in IP Multimedia System (IMS) territory, the media of IMS domain inside control the media gateway of the Mp between resource function (MRFC) and the media resource function (MRFP) of IMS domain inside, and in IMS domain, MGCF (MGCF) is to the media gateway for the control interface of media gateway in the intercommunication control interface of legacy public switched telephone net/lattice network exchange (PSTN/CS) network and soft switch.
5. reduce a system for call disconnection caused by transient interruption of terminal media, it is characterized in that, comprising:
Media Gateway Controller, for issuing newly-increased Network Fault Detection event, wherein carries transient interruption judging time;
Media gateway, for the newly-increased Network Fault Detection event that receiving media gateway controller issues, performs described newly-increased Network Fault Detection event; Network failure is there occurs, monitor network recovery in transient interruption judging time when detecting; When network recovery being detected in transient interruption judging time, then think and restart network hit to perform newly-increased Network Fault Detection event;
Described transient interruption judging time, is revised according to different scenes and network demand by described Media Gateway Controller.
6. system as claimed in claim 5, is characterized in that,
Described media gateway, also for also network recovery not detected when exceeding transient interruption judging time, notice Media Gateway Controller detects the network failure of non-hit.
7. system as claimed in claim 5, is characterized in that,
Described Media Gateway Controller, for issuing Network Fault Detection process event in Add or Modify order.
8. reduce a media gateway for call disconnection caused by transient interruption of terminal media, it is characterized in that, comprising:
Receiver module, for the newly-increased Network Fault Detection event carrying transient interruption judging time that receiving media gateway controller issues;
Executive Module, for performing described newly-increased Network Fault Detection event, if network failure detected, then monitor network recovery in described transient interruption judging time;
Judge module, for network recovery being detected when Executive Module in described transient interruption judging time, then thinks and notifies that Executive Module restarts monitor network recovery in described transient interruption judging time by network hit;
Described transient interruption judging time, is revised according to different scenes and network demand by described Media Gateway Controller.
9. media gateway as claimed in claim 8, is characterized in that,
Described judge module also for exceeding transient interruption judging time also network recovery do not detected when Executive Module, then thinks the non-hit of network, and the network failure notice Media Gateway Controller of non-hit that will detect.
10. media gateway as claimed in claim 8, is characterized in that,
Described receiver module, for the newly-increased Network Fault Detection process event carrying transient interruption judging time that receiving media gateway controller is issued to media gateway by Add order or Modify order.
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| CN201010219204.6A CN101917302B (en) | 2010-04-02 | 2010-06-25 | Method and system for reducing call disconnection caused by transient interruption of terminal media |
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| CN201010219204.6A CN101917302B (en) | 2010-04-02 | 2010-06-25 | Method and system for reducing call disconnection caused by transient interruption of terminal media |
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| CN101917302B (en) * | 2010-04-02 | 2015-06-10 | 中兴通讯股份有限公司 | Method and system for reducing call disconnection caused by transient interruption of terminal media |
| CN106792266B (en) * | 2015-11-23 | 2019-04-30 | 深圳市中兴微电子技术有限公司 | A kind of network detecting method and device and top box of digital machine |
| CN114089722B (en) * | 2021-11-17 | 2024-03-26 | 国家石油天然气管网集团有限公司 | Portable diagnosis method for industrial control network communication faults of gas transmission station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452347A (en) * | 2002-04-20 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | Method for detecting medium gateway controller and medium between-gateways link state |
| CN1716945A (en) * | 2004-06-30 | 2006-01-04 | 华为技术有限公司 | Method for detecting medium flow service quality |
| CN1725716A (en) * | 2004-07-21 | 2006-01-25 | 华为技术有限公司 | Method for detecting link failure between media getway and media gatway controller |
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| KR100564756B1 (en) * | 2003-12-03 | 2006-03-27 | 한국전자통신연구원 | MEAC protocol test apparatus and method |
| CN1281080C (en) * | 2004-06-08 | 2006-10-18 | 华为技术有限公司 | Method for realeasing terminal resource in media gateway |
| CN100342693C (en) * | 2005-04-15 | 2007-10-10 | 华为技术有限公司 | Method of medium gateway monitoring and uploading event |
| CN101166337A (en) * | 2007-09-18 | 2008-04-23 | 中兴通讯股份有限公司 | A signaling system and method for preventing signaling link from making instant on and off |
| CN101917302B (en) * | 2010-04-02 | 2015-06-10 | 中兴通讯股份有限公司 | Method and system for reducing call disconnection caused by transient interruption of terminal media |
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| CN1452347A (en) * | 2002-04-20 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | Method for detecting medium gateway controller and medium between-gateways link state |
| CN1716945A (en) * | 2004-06-30 | 2006-01-04 | 华为技术有限公司 | Method for detecting medium flow service quality |
| CN1725716A (en) * | 2004-07-21 | 2006-01-25 | 华为技术有限公司 | Method for detecting link failure between media getway and media gatway controller |
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| CN101917302A (en) | 2010-12-15 |
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