CN100461968C - Method, system and media gateway for obtaining dialing number information - Google Patents
Method, system and media gateway for obtaining dialing number information Download PDFInfo
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- CN100461968C CN100461968C CNB2006101225188A CN200610122518A CN100461968C CN 100461968 C CN100461968 C CN 100461968C CN B2006101225188 A CNB2006101225188 A CN B2006101225188A CN 200610122518 A CN200610122518 A CN 200610122518A CN 100461968 C CN100461968 C CN 100461968C
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- media gateway
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Abstract
A method for obtaining information of calling number includes requesting to obtain calling number from interchange device at opposite end when detection number message of media gateway controller is received by media gateway, receiving calling number information feedback from interchange device at opposite end and reporting it to media gateway controller by media gateway, receiving calling number information reported from media gateway by media gateway controller.
Description
Technical field
(Next Generation Network, the treatment technology of channel associated signalling system relates in particular to a kind of method and system thereof that obtains dialing number information NGN) or in the 3G network to the present invention relates to next generation network.
Background technology
The channel associated signalling system is meant that signaling and user profile transmit on same channel, perhaps signaling channel and user information corresponding transfer channel signaling system one to one.
In down NGN or 3G network, defined a series of interface, with guarantee Media Gateway Controller (Media Gateway Controller, MGC) and media gateway (Media Gateway MG) can carry out normal call treatment in the channel associated signalling system.
H.248 stipulated the bag that channel associated signalling is used in the agreement, include basic channel associated signalling (the BasicChannel Associated Signaling of system, BCAS) bag, international channel associated signalling bag (the InternationalChannel Associated Signaling of system, ICAS) etc., in addition, its early stage, the R2 bag in the draft also was that channel associated signalling is formulated.
With reference to figure 1, this figure is the process schematic diagram that obtains the method for dialing number information in the prior art, and concrete process is as follows:
S101, MGC send to MG and detect number message;
S102, MG by channel associated signalling to opposite end switching equipment acquisition request dialing number information;
S103, the MG media gateway receives the dialing number information of the feedback of opposite end switching equipment, and judges whether comprised calling number in the described dialing number information, if, execution in step s105 then, otherwise, execution in step s104;
S104, MG does not report dialing number information to MGC;
S105, MG sends to MGC with the calling number of obtaining.
There is following shortcoming in above-mentioned prior art:
When the calling number request of obtaining of media gateway was rejected, MG can't report described calling number to MGC, then may prolong greatly owing to MGC wait-for-response overlong time causes call failure or connecting time.
Summary of the invention
Technical problem to be solved by this invention is, a kind of method and system thereof that obtains dialing number information is provided, can obtain under the unaccepted situation of request of calling number at MG, still can in time report dialing number information, the problem of avoiding the call failure that causes because of the MGC waits for too long or connecting time to prolong greatly to MGC.
In order to solve the problems of the technologies described above, the present invention proposes a kind of method of obtaining dialing number information, comprising:
(a) media gateway is after receiving the detection number message of Media Gateway Controller, to the switching equipment acquisition request calling number that is connected with media gateway;
(b) media gateway receives the dialing number information of the switching equipment feedback that is connected with media gateway, when the dialing number information of described feedback did not comprise calling number, described media gateway sent the dialing number information that comprises a null value at least by the channel associated signalling interface in the gateway control protocol to Media Gateway Controller;
Described Media Gateway Controller receives the described dialing number information of described medium gateway to report.
Wherein, the described Media Gateway Controller of step (c) also comprises after receiving the dialing number information of described medium gateway to report:
Media Gateway Controller judges whether the dialing number information of described medium gateway to report has comprised described null value, if then determine successfully not obtain calling number; Otherwise, determine successfully to obtain calling number.
Preferably, described channel associated signalling interface is null event or empty parameter.
Perhaps, described channel associated signalling interface is an expansion interface.
Accordingly, the invention also discloses a kind of media gateway, include:
Request unit is used for after receiving the detection number message of Media Gateway Controller, sends the dialing number information request of obtaining to the switching equipment that is connected with media gateway;
Transmitting element, the dialing number information that the switching equipment that is used for being connected with media gateway feeds back sends to Media Gateway Controller,
Important is that described transmitting element also includes:
The null value transmitting element, when the dialing number information that is used for the switching equipment feedback that is connected with media gateway when described did not comprise calling number, the channel associated signalling interface by gateway control protocol reported the dialing number information that comprises at least one null value to Media Gateway Controller.
Preferably, when described dialing number information comprised described null value, described channel associated signalling interface was null event or empty parameter.
Perhaps, described channel associated signalling interface is an expansion interface.
Correspondingly, the invention also discloses a kind of system that obtains dialing number information, comprise media gateway, Media Gateway Controller and the switching equipment that is used for sending to media gateway calling number that links to each other with media gateway, described media gateway includes:
Request unit is used for after receiving the detection number message of Media Gateway Controller, sends the calling number request of obtaining to the switching equipment that is connected with media gateway;
Transmitting element, the dialing number information that the switching equipment that is used for being connected with media gateway feeds back sends to Media Gateway Controller,
Emphasis is that described transmitting element also includes:
The null value transmitting element, when the dialing number information that is used for the switching equipment feedback that is connected with media gateway when described did not comprise calling number, the channel associated signalling interface by gateway control protocol reported the dialing number information that comprises at least one null value to Media Gateway Controller.
Wherein, described Media Gateway Controller comprises:
Detecting unit is used for sending described detection number message to media gateway;
Receive recognition unit, be used for the dialing number information that the receiving media gateway reports, and judge whether this dialing number information has comprised described null value, if then determine successfully not obtain calling number; Otherwise, determine successfully to obtain calling number.
Preferably, described channel associated signalling interface is null event or empty parameter.
Perhaps, described channel associated signalling interface is an expansion interface.
Implement the present invention, have following beneficial effect:
The present invention sends dialing number information from the opposite end switching equipment by MG to MGC, no matter whether comprised calling number in the described dialing number information, MG all reports described dialing number information to MGC, and whether the dialing number information that MGC reports by inspection MG comprises null value judges whether successfully to obtain calling number.Like this, even under the situation of request calling number failure, MG also can in time report the testing result of calling number to MGC, thereby has avoided causing call failure or the long problem of connecting time because of MGC wait-for-response overlong time.
Description of drawings
Fig. 1 is the schematic flow sheet that obtains calling number in the prior art;
Fig. 2 is the schematic flow sheet that the present invention obtains the method for dialing number information;
Fig. 3 is the structural representation that the present invention obtains the system of dialing number information;
Embodiment
This core is that MG sends dialing number information from the opposite end switching equipment to MGC, no matter whether comprised calling number in the described dialing number information, MG all reports described dialing number information to MGC, and whether the dialing number information that MGC reports by inspection MG comprises null value judges whether successfully to obtain described calling number.Because under the situation of request calling number failure, MG also can in time report the testing result of calling number to MGC, thereby has avoided causing call failure or the long problem of connecting time because of MGC wait-for-response overlong time.
With reference to figure 2, this figure is the schematic flow sheet that obtains the method for dialing number information provided by the invention.Obtain calling number among the present invention and be specifically related to entity and mainly comprise MGC, MG and opposite end switching equipment, its idiographic flow is as follows:
Among the step s201, MGC issues number detection event to MG, has comprised the information of request calling number in the number detection event,
During specific implementation, the bag that the channel associated signalling system that MGC defines in the detection number message that MG sends can be used agreement H.248 uses.
Among the step s202, MG by channel associated signalling to opposite end switching equipment acquisition request calling number.
Among the step s203, MG is to the feedback information of MGC transmission opposite end switching equipment, if the dialing number information of opposite end switching equipment feedback does not comprise calling number, media gateway sends the dialing number information that comprises a null value at least to Media Gateway Controller; If the dialing number information of opposite end switching equipment feedback comprises calling number, media gateway sends the dialing number information that comprises described calling number to Media Gateway Controller, during specific implementation, MG uses the channel associated signalling interface in the agreement H.248 to send this dialing number information, and when described dialing number information comprises described null value, described channel associated signalling interface is null event or empty parameter, comprises the calling number incident or the calling number parameter of described null value herein for the calling number content, for example:
If MGC sends detection number message by the ADDR incident of ICASC bag, then MG sends described dialing number information by the SI parameter of ADDR incident to MGC, and when described dialing number information comprised described null value, its message format can be:
notify{icasc/addr{di＝xx，sc＝x，si＝N}}，
Wherein, N represents null value;
If MGC sends detection number message by the R2ADDR incident of R2 bag, then MG sends described dialing number information by the SI parameter of R2ADDR incident to MGC, and when described dialing number information comprised described null value, its message format can be:
notify{r2/r2addr{di＝xx，sc＝x，si＝N}}，
Wherein, N represents null value;
If MGC sends detection number message by the SI incident of R2 bag, then MG sends described dialing number information by this incident to MGC, and when described dialing number information comprised described null value, its message format can be:
notify{r2/si{si＝N}}，
Wherein, N represents null value,
In addition, when described dialing number information comprised described null value, MG also can report this dialing number information in expansion incident in the agreement H.248 or spreading parameter.
Among the step s204, MGC receives the dialing number information that MG reports, and judges whether this dialing number information comprises described null value, if, then determine successfully not obtain this calling number, otherwise, determine successfully to obtain this calling number.
With reference to figure 3, this figure be the system that obtains dialing number information provided by the invention the composition structure chart.As shown in the figure, in the present invention, this system includes opposite end switching equipment 1, and is same as the prior art, and described opposite end switching equipment 1 links to each other with MG, is used for sending dialing number information to MG.
Also include MG 2 in the system that obtains dialing number information provided by the invention, its major function is after receiving the detection number information of MGC3, send the calling number request of obtaining to described opposite end switching equipment 1, and receive the dialing number information of described opposite end switching equipment 1 feedback, and to the described dialing number information of MGC 3 transmissions, when comprising calling number in the feedback information of opposite end switching equipment 1, then send the dialing number information that comprises calling number to MGC 3, when not comprising calling number in the feedback information of opposite end switching equipment 1, then send the dialing number information that comprises at least one null value to MGC 3.
Also include MGC 3 in the system that obtains dialing number information provided by the invention, its major function is to send described detection number message to MG 2, receive the dialing number information that MG 2 reports, and judge whether the dialing number information that MG2 reports comprises described null value, if, then determine successfully not obtain this calling number, otherwise, determine successfully to obtain this calling number.
Describe the MG in the system that obtains dialing number information provided by the invention below in detail, with reference to figure 3, MG mainly includes in the system that obtains dialing number information provided by the invention:
Transmitting element 22 is used for the dialing number information of opposite end switching equipment feedback is sent to Media Gateway Controller, and during specific implementation, described transmitting element also specifically comprises:
Null value transmitting element 221 is used for when the dialing number information of described opposite end switching equipment feedback does not comprise calling number, and the channel associated signalling interface by gateway control protocol reports the dialing number information that comprises at least one null value to Media Gateway Controller.
Describe the MGC in the system that obtains dialing number information provided by the invention below in detail, with reference to figure 3, MGC mainly includes in the system that obtains dialing number information provided by the invention:
Detecting unit 31 is used for sending described detection number message to MG;
Receive recognition unit 32, be used to judge whether the dialing number information that described MG transmitting element reports comprises described null value, if, then determine successfully not obtain this calling number, otherwise, determine successfully to obtain this calling number.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also are considered as protection scope of the present invention.
Claims (11)
1. a method of obtaining dialing number information is characterized in that, comprising:
(a) media gateway is after receiving the detection number message of Media Gateway Controller, to the switching equipment acquisition request calling number that is connected with media gateway;
(b) media gateway receives the dialing number information of the switching equipment feedback that links to each other with media gateway, when the dialing number information of described feedback did not comprise calling number, described media gateway sent the dialing number information that comprises a null value at least by the channel associated signalling interface in the gateway control protocol to Media Gateway Controller;
(c) described Media Gateway Controller receives the described dialing number information of described medium gateway to report.
2. the method for obtaining dialing number information as claimed in claim 1 is characterized in that, the dialing number information that the described Media Gateway Controller of step (c) receives described medium gateway to report also comprises afterwards:
Media Gateway Controller judges whether the dialing number information of described medium gateway to report has comprised described null value, if then determine successfully not obtain calling number; Otherwise, determine successfully to obtain calling number.
3. the method for obtaining dialing number information as claimed in claim 2 is characterized in that, described channel associated signalling interface is null event or empty parameter.
4. the method for obtaining dialing number information as claimed in claim 2 is characterized in that, described channel associated signalling interface is an expansion interface.
5. media gateway includes:
Request unit is used for after receiving the detection number message of Media Gateway Controller, sends the dialing number information request of obtaining to the switching equipment that is connected with media gateway;
Transmitting element, the dialing number information that the switching equipment that is used for being connected with media gateway feeds back sends to Media Gateway Controller,
It is characterized in that described transmitting element also includes:
The null value transmitting element, when the dialing number information that is used for the switching equipment feedback that is connected with media gateway when described did not comprise calling number, the channel associated signalling interface by gateway control protocol reported the dialing number information that comprises at least one null value to Media Gateway Controller.
6. media gateway as claimed in claim 5 is characterized in that, when described dialing number information comprised described null value, described channel associated signalling interface was null event or empty parameter.
7. media gateway as claimed in claim 5 is characterized in that, described channel associated signalling interface is an expansion interface.
8. a system that obtains dialing number information comprises media gateway, Media Gateway Controller and the switching equipment that is used for sending to media gateway calling number that links to each other with media gateway, and described media gateway includes:
Request unit is used for after receiving the detection number message of Media Gateway Controller, sends the calling number request of obtaining to the switching equipment that is connected with media gateway;
Transmitting element, the dialing number information that the switching equipment that is used for being connected with media gateway feeds back sends to Media Gateway Controller,
It is characterized in that described transmitting element also includes:
The null value transmitting element, when the dialing number information that is used for the switching equipment feedback that is connected with media gateway when described did not comprise calling number, the channel associated signalling interface by gateway control protocol reported the dialing number information that comprises at least one null value to Media Gateway Controller.
9. the system that obtains dialing number information as claimed in claim 8 is characterized in that, described Media Gateway Controller comprises:
Detecting unit is used for sending described detection number message to media gateway;
Receive recognition unit, be used for the dialing number information that the receiving media gateway reports, and judge whether this dialing number information has comprised described null value, if then determine successfully not obtain calling number; Otherwise, determine successfully to obtain calling number.
10. obtain the system of dialing number information as claimed in claim 8 or 9, it is characterized in that, described channel associated signalling interface is null event or empty parameter.
11. obtain the system of dialing number information as claimed in claim 8 or 9, it is characterized in that described channel associated signalling interface is an expansion interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101225188A CN100461968C (en) | 2006-09-29 | 2006-09-29 | Method, system and media gateway for obtaining dialing number information |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101225188A CN100461968C (en) | 2006-09-29 | 2006-09-29 | Method, system and media gateway for obtaining dialing number information |
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| Publication Number | Publication Date |
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| CN1933671A CN1933671A (en) | 2007-03-21 |
| CN100461968C true CN100461968C (en) | 2009-02-11 |
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| CNB2006101225188A Expired - Fee Related CN100461968C (en) | 2006-09-29 | 2006-09-29 | Method, system and media gateway for obtaining dialing number information |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101796800B (en) * | 2007-12-29 | 2014-09-10 | 中兴通讯股份有限公司 | Method for media gateway obtaining calling information |
| CN102739878B (en) * | 2011-04-12 | 2015-01-28 | 中兴通讯股份有限公司 | Method for acquiring calling information under soft switching architecture and next generation network (NGN) system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002067559A1 (en) * | 2001-02-16 | 2002-08-29 | Cp8 | Method and apparatus for anonymous call set up |
| CN1402520A (en) * | 2001-08-15 | 2003-03-12 | 华为技术有限公司 | Method for carrying calling number by calling PC client terminal in medium gateway control protocol |
| CN1411225A (en) * | 2001-09-29 | 2003-04-16 | 华为技术有限公司 | Realizing method of calling forwarding |
| CN1501650A (en) * | 2002-11-14 | 2004-06-02 | 华为技术有限公司 | A call flow setting up method |
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- 2006-09-29 CN CNB2006101225188A patent/CN100461968C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002067559A1 (en) * | 2001-02-16 | 2002-08-29 | Cp8 | Method and apparatus for anonymous call set up |
| CN1402520A (en) * | 2001-08-15 | 2003-03-12 | 华为技术有限公司 | Method for carrying calling number by calling PC client terminal in medium gateway control protocol |
| CN1411225A (en) * | 2001-09-29 | 2003-04-16 | 华为技术有限公司 | Realizing method of calling forwarding |
| CN1501650A (en) * | 2002-11-14 | 2004-06-02 | 华为技术有限公司 | A call flow setting up method |
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| CN1933671A (en) | 2007-03-21 |
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