CN1870702B - Method and system for controlling connecting - Google Patents
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- CN1870702B CN1870702B CN2005101183119A CN200510118311A CN1870702B CN 1870702 B CN1870702 B CN 1870702B CN 2005101183119 A CN2005101183119 A CN 2005101183119A CN 200510118311 A CN200510118311 A CN 200510118311A CN 1870702 B CN1870702 B CN 1870702B
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Abstract
This invention discloses a method for controlling barrette connections including: A, a MGC obtains the current supporting ability of said MG to the barrette connection from the parameter showing the supporting ability of the MG to the connection of barrettes at the present, B, the MGC decides the control mode based on the supporting ability of the MG to the barrette connection and sends related control parameters. This invention also provides a system for controlling the barrette connection and a method for controlling it.
Description
Technical field
The present invention relates to the communications field, particularly relate to the method and system that the control hair clip connects.
Background technology
Media Gateway Controller (MGC) and media gateway (MG) are two key members in the packet network.MGC is responsible for CCF, and MG is responsible for the service bearer function, and the two cooperates in order to realization calls out separating of control plane and service bearer plane, thus abundant shared network resource, and simplified apparatus upgrading and business expansion reduce development and maintenance cost greatly.
Referring to shown in Figure 1, MGCP be MG with MGC between the main agreement of communicating by letter, H.248/MeGaCo at present widely used have and two kinds of agreements of MGCP.Wherein, MGCP protocol version 1 is worked out and is revised in January, 2003 in October, 1999 by the Internet engineering duty group (IETF), H.248/MeGaCo protocol version 1 is revised in common formulation of in November, 2000 and in June, 2003 by IETF and International Telecommunication Union, H.248 protocol version 2 is worked out and is revised in March, 2004 in May, 2002 by ITU, and H.248 protocol version 3 is worked out just to be released by ITU in July, 2005.
With agreement H.248 is example, and the various resources on the MG are terminal (Termination) by abstract representation.
Terminal is divided into physics (Physical) terminal and interim (Ephemeral) terminal again, on behalf of some, the former have the physical entity of semipermanent existence, for example: Time Division Multiplexing passage etc., the public resource that on behalf of some provisional application, the latter discharge with the back, for example: real-time transport protocol (rtp) stream etc.Combination between the terminal is context (Context) by abstract representation.Context can comprise a plurality of terminals, therefore describes the correlation of terminal room with topology (Topology).For also related terminal not taking place, be called the contextual special context of sky (Null) by one and comprise with other terminal.
Based on this abstract model of agreement, in fact continuing of calling be exactly to terminal and contextual operation.This operation is finished by the order between MGC and the MG (Command) request and response.Command type comprises interpolation (Add), revises (Modify), deletes (Subtract), moves (Move), audit value (AuditValue), auditability (AuditCapabilities), circular (Notify), service change (ServiceChange).Command parameter is also referred to as descriptor (Descriptor), is classified as attribute (Property), signal (Signal), incident (Event), statistics (Statistic).Parameter with professional correlation polymerization in logic becomes bag (Package).
A typical ip voice call model is to comprise two terminals in a context, one is the physical terminal of representing the TDM passage, another is an ephemeral terminations of representing rtp streaming, and these two terminals interconnect in context and also just mean between a TDM passage and a rtp streaming and carry out media conversion.In addition, such context is arranged respectively on two MG, and they interconnecting based on IP network by above-mentioned rtp streaming, also is that its media conversion is that TDM arrives the form of TDM again to RTP, calls out so also just set up an ip voice between above-mentioned two TDM passages.
Yet when above-mentioned two TDM passages are on same MG, if so in fact MG can not need these two TDM passage direct interconnection to transmit by rtp streaming again.Be reflected to directly comprise two physical terminals of all representing the TDM passage on the call model exactly in a context, these two terminals interconnect in context and also just mean interconnection between the TDM passage.The resource consumption of media conversion not only can be reduced like this, and the service quality of media delivery can be improved.The calling of setting up between this terminal (for example TDM passage) on a MG is called local the connection or hair clip (Hairpin) connection.
Under MG can support prerequisite with TDM passage direct interconnection, if MGC can differentiate relate to calling both sides on same MG, MGC can set up according to the call model indication MG that comprises two physical terminals in a context and call out so, and the hair clip that is called controlled way connects; If MGC can't judge, but MG can differentiate relate to calling both sides on same MG, MGC can set up according to the call model indication MG that comprises a physical terminal and an ephemeral terminations in two contexts separately and call out so, and by these two physical terminals of the own direct interconnection of MG non-Resources allocation (for example: digital signal processor DSP) do media conversion between TDM and the RTP, the hair clip that is called autonomous mode connects.MGC distinguishes both of these case with the mutual present also shortage that MG is connected at hair clip and takes the mechanism of corresponding measure.
Some business may need to avoid MG to set up the hair clip connection again simultaneously, and for example: IP loopback conduction detection business just requires to avoid hair clip to connect.When supporting the hair clip of above-mentioned autonomous mode, MG connects, but need avoid setting up hair clip and connect the time the mutual mechanism that also lacks the hair clip connection capacity of self-government of controlling MG at present that MGC and MG are connected at hair clip.
Summary of the invention
The invention provides the method and system that the control hair clip connects, can't connect the problem of controlling to hair clip according to the hair clip concatenation ability of media gateway in order to solve prior art.
The inventive method comprises step:
A, media gateway controller MGC obtain the current tenability that hair clip is connected of this MG from the parameter that is used for reflecting the current tenability that hair clip is connected of media gateway MG;
B, MGC be according to the current tenability decision control mode that hair clip is connected of described MG, and issue the control corresponding parameter and control.
The parameter configuration of the current tenability that hair clip is connected of described reflection MG is on MG.
Define the parameter of the current tenability that hair clip is connected of described reflection MG by the extended medium gateway control protocol.
MGC obtains described tenability by the audit value order in the MGCP in the described steps A.
The parameter of the current tenability that hair clip is connected of described reflection MG is also configurable on MGC.
The parameter value of the current tenability that hair clip is connected of described reflection MG is controlled, autonomous or invalid; The described MG of wherein said controlled expression supports to judge that by MGC setting up hair clip with indication is connected; The described MG of described autonomous expression supports independently to judge and sets up hair clip and be connected; The described MG of described invalid representation does not support to set up hair clip and connects.
Among the described step B, if the current tenability that hair clip is connected of described MG is controlled, then MGC judges that setting up hair clip with indication is connected; If the current tenability that hair clip is connected of described MG be autonomous, then MGC indication MG sets up common ip voice calling, and perhaps MG independently judges and sets up hair clip and be connected; If the current tenability that hair clip is connected of described MG is invalid, then MGC need not to judge that setting up hair clip with indication is connected.
The present invention's another kind method is used for when precognition media gateway MG has hair clip connection capacity of self-government, and the hair clip of the autonomous mode of control MG connects, and comprises the following steps:
A, on MG, be provided for controlling the Control Parameter that the MG hair clip connects capacity of self-government;
The corresponding unlatching of value of the described Control Parameter that B, MG issue according to MGC or close the capacity of self-government that hair clip is connected.
Define the parameter that described control MG hair clip connects capacity of self-government by the extended medium gateway control protocol.
The value of the parameter of control MG hair clip connection capacity of self-government issues to described MG by media gateway controller MGC in the described steps A.
The value that described control MG hair clip connects the parameter of capacity of self-government is provided with by the MG backstage.
Described control MG hair clip connects the parameter value of capacity of self-government for opening or closing; Wherein said game clock shows that enabling described MG hair clip connects capacity of self-government; Described pass represent to deenergize described MG hair clip connects capacity of self-government.
The system of control connection of the present invention is used to control hair clip and connects, and comprising: interconnective media gateway MG and media gateway controller MGC; Described MG is used to carry out the hair clip attended operation, and described MGC is used for issuing the hair clip attended operation of control MG and the Control Parameter of the capacity of self-government that hair clip connects to described MG.
Described MG reports described MGC with its current tenability that hair clip is connected, the described MGC control mode that the current tenability decision that hair clip is connected connects hair clip according to described MG, and the Control Parameter that issues the hair clip attended operation of control MG is controlled.
The MG hair clip that described MG issues according to described MGC connects the capacity of self-government Control Parameter, corresponding unlatching or close the capacity of self-government that it connects hair clip.
Beneficial effect of the present invention is as follows:
The present invention makes MGC can obtain the current hair clip concatenation ability of MG by being provided for reflecting the parameter of the current hair clip concatenation ability of this MG, and determines the control mode that hair clip connects in view of the above.The parameter of the current hair clip concatenation ability of this MG of described reflection can dispose on MG by the extended medium gateway control protocol, and is obtained by MGC by the audit order of MGCP, also can dispose on MGC and is directly understood by MGC.
The present invention makes and is knowing that in advance MG has under the situation of autonomous hair clip concatenation ability by being provided for controlling the parameter that the MG hair clip connects capacity of self-government, can control as required and whether enable described autonomous hair clip concatenation ability.The parameter that described control MG hair clip connects capacity of self-government is arranged on the MG, and its value can be handed down to MG by MGC by the extended medium gateway control protocol, also can directly be provided with by the backstage on MG.
The present invention also provides the system of control connection, is used to support the inventive method.
Description of drawings
Fig. 1 is existing networking schematic diagram;
Fig. 2 is a system schematic of the present invention;
Fig. 3 is the inventive method flow chart of steps.
Embodiment
In order to control the hair clip concatenation ability of media gateway MG, the invention provides a kind of system, referring to shown in Figure 2, it comprises: be used to carry out the media gateway MG of hair clip attended operation, and coupled, be used to control the media gateway controller MGC of hair clip attended operation.
Described MG reports described MGC with its current tenability that hair clip is connected, the described MGC control mode that the current tenability decision that hair clip is connected connects hair clip according to described MG, and issue the control corresponding parameter and control.The MG hair clip that described MG issues according to described MGC connects the capacity of self-government Control Parameter, corresponding unlatching or close the capacity of self-government that it connects hair clip.
Use said system, the invention provides a kind of method that hair clip connects of controlling,, comprise the following steps: referring to shown in Figure 3
S0, preparation process are used to be provided with relevant parameter.
S1, MGC obtain the current hair clip concatenation ability parameter value of MG, and determine hair clip to connect control mode in view of the above.
S2, MG enable according to hair clip connection capacity of self-government control parameter value or its hair clip that deenergizes connects capacity of self-government.
S3, finish connection.
In order to make MGC can know the hair clip concatenation ability that MG is current, the inventive method has been expanded a property parameters in MGCP (for example H.248), in order to the hair clip concatenation ability that reflects that described MG is current.This property parameters definable is in the existing bag of described agreement, and also definable is in one of described agreement new bag.
For example: described new bag called after hair clip is connected (Hairpin Connection), and with described property parameters called after hair clip concatenation ability (Hairpin Connection Capability), this parameter is for enumerating (Enumerate) type, its parameter value can be controlled (Controlled), autonomous (Autonomic) or invalid (Invalid), and this parameter of definable does not have default value and read-only.
If wherein said parameter value is controlled, represent that then MG supports to judge that by MGC setting up hair clip with indication is connected; If value is autonomous, represent that then MG supports independently to judge and sets up hair clip and be connected; If value is invalid, represent that then MG does not support to set up hair clip and connects.
For described MGC where necessary (for example: IP loopback conduction detection business need avoids hair clip to connect) can control MG and independently judge and set up the ability that hair clip is connected, the inventive method has been expanded a property parameters in addition in MGCP (for example H.248), be used for when described MG supports described capacity of self-government, control described capacity of self-government and whether enable.This property parameters definable is in the existing bag of described agreement, and also definable is in one of described agreement new bag.
For example: in above-mentioned same Hairpin Connection bag, this property parameters called after is enabled autonomy (Enable Autonomy), and this parameter is an enumeration type, and its parameter value can be out (On) or closes (Off), and the definable default value is On, and this parameter is readable writes.
This property parameters value is On, and then the capacity of self-government (promptly enabling) that MG connects hair clip is opened in expression.
This property parameters value is Off, and then the capacity of self-government (promptly deenergizing) that MG connects hair clip is closed in expression.
Below specifically describe the inventive method by three examples.
The parameter value of the current hair clip concatenation ability of method example one: MG is controlled.
S100, be provided for reflecting the parameter of the current hair clip concatenation ability of this MG on MG, this is worth for controlled in this example.This step is the preparation process before flow process begins.
S101, MGC obtain the current hair clip concatenation ability parameter value of MG, and determine hair clip to connect control mode in view of the above.
MGC sends audit value (Audit Value) request command to MG, requires the audit hair clip to connect the currency of the hair clip concatenation ability parameter in the bag.
After MG receives described audit value request command, send the audit value response command, carry the currency that hair clip connects the hair clip concatenation ability parameter in the bag in the described audit value response command to MGC.This is worth for controlled in this example.
After MGC receives described audit response message, know that therefrom the current hair clip concatenation ability parameter value of described MG is controlled.Judge that in view of the above described MG can set up hair clip according to the indication of MGC and connect.
Learn that by judgement current calling is a hair clip when connecting as MGC like this, need not to issue hair clip and connect the capacity of self-government Control Parameter and indicate MG to enable or close its hair clip and connect capacity of self-government, be i.e. skips steps S102, directly execution in step 103.
S102, MG enable according to hair clip connection capacity of self-government control parameter value or its hair clip that deenergizes connects capacity of self-government.
S103, finish connection.
MGC sends the Add request command to MG, and indication MG sets up hair clip according to the call model that comprises two physical terminals in a context and connects;
MG sets up hair clip according to the indication of MGC with the Time Division Multiplexing passage direct interconnection of these two physical terminal representatives and connects, and sends the Add response command to MGC.
So far finish to call out and connect.
The parameter value of the current hair clip concatenation ability of method example two: MG is autonomous.
S200, be provided for reflecting the parameter of the current hair clip concatenation ability of this MG on MG, this is worth and is autonomy in this example.(this step is identical with example one except that parameter value)
S201, MGC obtain the current hair clip concatenation ability parameter value of MG, and determine hair clip to connect control mode in view of the above.
MGC sends audit value (Audit Value) request command to MG, requires the audit hair clip to connect the currency of the hair clip concatenation ability parameter in the bag.
After MG receives described audit value request command, send the audit value response command, carry the currency that hair clip connects the hair clip concatenation ability parameter in the bag in the described audit value response command to MGC.This is worth and is autonomy in this example.
After MGC receives described audit response message, know that therefrom the current hair clip concatenation ability parameter value of described MG is for autonomous.Judge that in view of the above described MG can independently judge and sets up hair clip and be connected.
Here in two kinds of situation:
If MGC judges the hair clip connection capacity of self-government (for example: judge that current business need not to avoid hair clip to connect) that need not to limit MG, then described MGC need not to judge whether current calling is that hair clip connects, but skips steps S202, directly execution in step S203.
If MGC requires to avoid independently to be judged and set up hair clip and (for example: require to set up the hair clip connection by MGC control is connected by MG, perhaps some service application need avoid setting up the hair clip connection), then described MGC issues to described MG and contains the order that hair clip connects the capacity of self-government Control Parameter, and described hair clip connects the value of capacity of self-government Control Parameter for deenergizing.
S202, MG enable according to hair clip connection capacity of self-government control parameter value or its hair clip that deenergizes connects capacity of self-government.
MG obtained described hair clip and connects the capacity of self-government parameter value for deenergizing from described containing the order that hair clip connects the capacity of self-government Control Parameter, and closed the hair clip connection capacity of self-government of this MG in view of the above.
S203, finish connection.
Two kinds of situations among the corresponding step S201:
If MGC judges the hair clip connection capacity of self-government that need not to limit MG, then send the Add request message, and set up common ip voice according to the call model indication MG that in two contexts, all comprises a physical terminal and an ephemeral terminations separately and call out to MG.Judge that current calling is that hair clip connects (for example: find that the both sides that relate to calling use same IP address) if described MG is autonomous, then do not distribute between TDM and the RTP the media conversion resource (for example: DSP) and directly two TDM lane interconnect are realized that hair clips are connected.
Connect if MGC requires to avoid independently to set up hair clip by MG, then connect the capacity of self-government control parameter value according to hair clip and judge no longer independently for deenergizing whether hair clip connects in current calling, but distribute related resource according to the MGC indication at MG described in the step 202.So whether to set up the hair clip connection and just controlled by MGC fully, connect if need set up hair clip, then described MGC sends the Add request command to described MG, indicates MG to set up hair clip according to the call model that comprises two physical terminals in a context and connects; Do not connect if need not set up hair clip, then described MGC sends the Add request command to described MG, and indication MG sets up common ip voice according to the call model indication MG that comprises a physical terminal and an ephemeral terminations in two contexts separately and calls out.
MG keeps the consistent of context and terminal with MGC under the both of these case, and sends the Add response command to MGC.
The parameter value of the current hair clip concatenation ability of method example three: MG is invalid.
S300, be provided for reflecting the parameter of the current hair clip concatenation ability of this MG on MG, this is worth and is autonomy in this example.(this step is identical with example one except that parameter value)
S301, MGC obtain the current hair clip concatenation ability parameter value of MG, and determine hair clip to connect control mode in view of the above.
MGC sends audit value (AuditValue) request command to MG, requires the audit hair clip to connect the currency of the hair clip concatenation ability parameter in the bag.
After MG receives described audit value request command, send the audit value response command, carry the currency that hair clip connects the hair clip concatenation ability parameter in the bag in the described audit value response command to MGC.This is worth for invalid in this example.
After MGC receives described audit value response command, know that therefrom the current hair clip concatenation ability parameter value of described MG is invalid.Judge that in view of the above described MG does not support to set up hair clip and connects.
Whether do not connect because MG does not support to set up hair clip, be that hair clip connects so MGC need not to judge current calling, but skips steps S302, directly execution in step S303.
S302, MG enable according to hair clip connection capacity of self-government control parameter value or its hair clip that deenergizes connects capacity of self-government.
S303, finish connection.
Because MGC knows that by the currency of described hair clip concatenation ability parameter described MG does not support to set up hair clip and connects in this example, so no matter whether described MGC learns that by judgement current calling is that hair clip connects, all can only send the Add request message, and set up common ip voice according to the call model indication MG that in two contexts, all comprises a physical terminal and an ephemeral terminations separately and call out to described MG.
MG keeps the consistent of context and terminal with MGC, is that TDM creates the ip voice calling to the form that RTP arrives TDM again according to media conversion promptly, and sends the Add response command to MGC.
The related reflection hair clip concatenation ability parameter of foregoing invention method is connected the capacity of self-government Control Parameter with hair clip can use (as above-mentioned three examples) together, also can use separately.For example MGC can understand the current hair clip concatenation ability of MG by described reflection hair clip concatenation ability parameter, but does not interfere the hair clip of MG to connect capacity of self-government (if any).
And when precognition MG had hair clip connection capacity of self-government, MGC also can connect the capacity of self-government Control Parameter by described hair clip control its hair clip connection capacity of self-government, and whether the corresponding control of instruction that issues according to MGC sets up the hair clip connection then.
The related reflection hair clip concatenation ability parameter of foregoing invention method can be configured on the MG, and obtain (as above-mentioned example) by the audit value order from MG by MGC as an extended attribute of media gateway protocols (for example H.248), also can be configured in MGC and go up and be directly acquainted with by MGC.
The related hair clip of foregoing invention method connect the capacity of self-government Control Parameter can be used as by media gateway protocols (for example H.248) an extended attribute be handed down to MG by MGC (as above-mentioned example) be set, also can directly on MG, dispose by the backstage.
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 (14)
1. the method for a control connection is used to control hair clip and connects, and it is characterized in that, comprises the following steps:
A, media gateway controller MGC obtain the current tenability that hair clip is connected of this MG from the parameter that is used for reflecting the current tenability that hair clip is connected of media gateway MG;
B, MGC be according to the current tenability decision control mode that hair clip is connected of described MG, and issue the control corresponding parameter and control.
2. method according to claim 1 is characterized in that, the parameter configuration of the current tenability that hair clip is connected of described reflection MG is on MG.
3. as method as described in the claim 2, it is characterized in that, define the parameter of the current tenability that hair clip is connected of described reflection MG by the extended medium gateway control protocol.
4. as method as described in the claim 3, it is characterized in that MGC obtains described tenability by the audit value order in the MGCP in the described steps A.
5. method according to claim 1 is characterized in that, the parameter configuration of the current tenability that hair clip is connected of described reflection MG is on MGC.
6. as claim 1 to 5 method as described in each, it is characterized in that the parameter value of the current tenability that hair clip is connected of described reflection MG is controlled, autonomous or invalid;
The described MG of wherein said controlled expression supports to judge that by MGC setting up hair clip with indication is connected;
The described MG of described autonomous expression supports independently to judge and sets up hair clip and be connected;
The described MG of described invalid representation does not support to set up hair clip and connects.
7. method according to claim 1 is characterized in that, among the described step B,
If the current tenability that hair clip is connected of described MG is controlled, then MGC judges that setting up hair clip with indication is connected;
If the current tenability that hair clip is connected of described MG be autonomous, then MGC indication MG sets up common ip voice calling, and perhaps MG independently judges and sets up hair clip and be connected;
If the current tenability that hair clip is connected of described MG is invalid, then MGC need not to judge that setting up hair clip with indication is connected.
8. the method for a control connection is used for when precognition media gateway MG has hair clip connection capacity of self-government, and the hair clip of the autonomous mode of control MG connects, and it is characterized in that, comprises the following steps:
A, on MG, be provided for controlling the Control Parameter that the MG hair clip connects capacity of self-government;
The corresponding unlatching of value of the described Control Parameter that B, MG issue according to MGC or close the capacity of self-government that hair clip is connected.
9. as method as described in the claim 8, it is characterized in that, define the parameter that described control MG hair clip connects capacity of self-government by the extended medium gateway control protocol.
10. as method as described in the claim 9, it is characterized in that the value that control MG hair clip connects the parameter of capacity of self-government in the described steps A issues to described MG by media gateway controller MGC.
11., it is characterized in that described control MG hair clip connects the parameter value of capacity of self-government for opening or closing as claim 8 to 10 method as described in each;
Wherein said game clock shows that enabling described MG hair clip connects capacity of self-government;
Described pass represent to deenergize described MG hair clip connects capacity of self-government.
12. the system of a control connection is used to control hair clip and connects, and it is characterized in that, comprising: interconnective media gateway MG and media gateway controller MGC;
Described MG is used to carry out the hair clip attended operation, and described MGC is used for issuing the hair clip attended operation of control MG and the Control Parameter of the capacity of self-government that hair clip connects to described MG.
13. as system as described in the claim 12, it is characterized in that, described MG reports described MGC with its current tenability that hair clip is connected, the described MGC control mode that the current tenability decision that hair clip is connected connects hair clip according to described MG, and the Control Parameter that issues the hair clip attended operation of control MG is controlled.
14., it is characterized in that described MG connects the capacity of self-government Control Parameter according to the MG hair clip that described MGC issues as system as described in the claim 12, corresponding unlatching or close the capacity of self-government that it connects hair clip.
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| ES2509349T3 (en) * | 2006-06-26 | 2014-10-17 | Huawei Technologies Co., Ltd. | Method and system and device to instruct a media gateway to establish connections between terminals |
| CN101316264B (en) * | 2007-06-02 | 2011-05-04 | 华为技术有限公司 | Resource control method and apparatus under service and bearing separation structure |
| CN101867575B (en) * | 2010-05-31 | 2015-08-19 | 中兴通讯股份有限公司 | A kind of media hairpin connection method of inter-network element and system |
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| US6754180B1 (en) * | 1999-12-15 | 2004-06-22 | Nortel Networks Limited | System, method, and computer program product for support of bearer path services in a distributed control network |
| CN1612564A (en) * | 2003-10-31 | 2005-05-04 | 华为技术有限公司 | Media gateway control protocol compatible method |
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|---|---|---|---|---|
| US6754180B1 (en) * | 1999-12-15 | 2004-06-22 | Nortel Networks Limited | System, method, and computer program product for support of bearer path services in a distributed control network |
| CN1612564A (en) * | 2003-10-31 | 2005-05-04 | 华为技术有限公司 | Media gateway control protocol compatible method |
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| N. Greene, M. Ramalho, B. Rosen.RFC2805 - Media Gateway Control Protocol Architecture and Requirements.Network Working Group,2000,章节3-章节5.2. |
| N. Greene, M. Ramalho, B. Rosen.RFC2805-Media Gateway Control Protocol Architecture and Requirements.Network Working Group,2000,章节3-章节5.2. * |
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