CN1997083A - Network system and selection method of call route - Google Patents
Network system and selection method of call route Download PDFInfo
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- CN1997083A CN1997083A CN 200610132461 CN200610132461A CN1997083A CN 1997083 A CN1997083 A CN 1997083A CN 200610132461 CN200610132461 CN 200610132461 CN 200610132461 A CN200610132461 A CN 200610132461A CN 1997083 A CN1997083 A CN 1997083A
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Abstract
This invention discloses one network system, which comprises the following steps: exchange device analyzes main call user information to get at least router selection conditions of main IP address information; then exchange device inquires the exchange device or position servo memory relationship to determine call router. This invention also discloses one relative network system exchange device, position servo and the said network system call router selection method.
Description
Technical field
The present invention relates to communication technical field, in particular, the present invention relates to the calling route selection method in a kind of network system and the network system.
Background technology
Next generation network (NGN, Next Generation Network) be a kind of network of business-driven type, it adopts network architecture comprehensive, open, that merge, separate with calling control by business, calling out control separates with service bearer, make professional independence and network, thereby realize relatively independent business system.
Be accompanied by the NGN networks development, the configuration of the routing iinformation in the NGN network and maintenance have become the key of NGN network development, for this reason, industry has proposed the soft switch routing architecture scheme and the location server targeting scheme of stratification, wherein the routing architecture scheme of stratification is to adopt similar traditional public switch telephone network (PSTN, Public Switched Telephone Network) routing mechanism adopts multistage route; The location server targeting scheme then is to utilize location server to provide route service for one or one group of soft switch, when the NGN network development to fairly large, the soft switch number more for a long time, location server can provide route service relatively more efficiently.
At present, call route selecting function more flexibly all can be provided in soft switch and location server, for example can select different routes according to different call source (as dialing number information), different calling subscriber's type (common, preferential, data, operator, test), different time sections, different called number, bearer service type etc.
But in the NGN network of soft switch control, the IP-based framework of network using, above-mentioned routing scheme adopt the calling routing mechanism of similar public switch telephone network, but can't realize IP address-based call route selecting.
Summary of the invention
The technical problem that the embodiment of the invention solves provides a kind of switching equipment, location server, network system and calling route selection method thereof, to be implemented in based on the call route selecting that realizes in the network system of IP framework based on the IP address information.
For addressing the above problem, a kind of switching equipment of the present invention comprises the calling routing processing unit, and described calling routing processing unit comprises:
Memory cell is used to store Route Selection condition that comprises the caller ip address information at least and the corresponding relation of calling out route;
Caller ip address information acquiring unit is used to resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
The route determining unit is determined corresponding calling route according to the described corresponding relation of the described Route Selection condition query cell stores of obtaining that comprises the caller ip address information at least.
Accordingly, a kind of location server of the present invention comprises:
Memory cell is used to store Route Selection condition that comprises the caller ip address information at least and the corresponding relation of calling out route;
The route determining unit is determined corresponding calling route according to the described corresponding relation of the Route Selection condition query cell stores that comprises the caller ip address information at least.
Accordingly, a kind of switching equipment of the present invention includes the calling routing processing unit, and described calling routing processing unit comprises:
Caller ip address information acquiring unit is used to resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
Call out the routing inquiry unit, be used for according to the Route Selection condition that comprises the caller ip address information at least to the corresponding calling route of location server inquiry.
Accordingly, a kind of network system of the present invention comprises switching equipment, and described switching equipment comprises the calling routing processing unit, and described calling routing processing unit comprises:
Memory cell is used to store Route Selection condition that comprises caller IP address at least and the corresponding relation of calling out route;
Caller ip address information acquiring unit is used to resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
The route determining unit is determined corresponding calling route according to the described corresponding relation of the described Route Selection condition query cell stores of obtaining that comprises the caller ip address information at least.
Accordingly, another kind of network system of the present invention comprises switching equipment, and described switching equipment includes the calling routing processing unit, and described network system also comprises:
Location server stores Route Selection condition that comprises the caller ip address information at least and the corresponding relation of calling out route, and the calling routing inquiry request of response soft switch is returned corresponding calling route;
Described calling routing processing unit comprises:
Caller ip address information acquiring unit is used to resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
Call out the routing inquiry unit, be used for according to the Route Selection condition that comprises the caller ip address information at least to the corresponding calling route of described location server inquiry.
Accordingly, a kind of calling route selection method of the present invention, this method comprises:
Resolve call user information to obtain the Route Selection condition that comprises the caller ip address at least;
Determine and this corresponding calling route of obtaining of the Route Selection condition that comprises the caller ip address information at least according to the described Route Selection condition query that comprises the caller ip address information at least that obtains.
According to embodiments of the invention, storage comprises the Route Selection condition and the corresponding relation of calling out route of caller ip address information at least in switching equipment or location server; Resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least by switching equipment; Switching equipment can be determined corresponding calling route according to the described corresponding relation of described this switching equipment of Route Selection condition query that comprises the caller ip address information at least that obtains or location server storage then, thereby in based on the network of IP framework, realize call route selecting based on the IP address information, can further improve the flexibility of route, satisfy NGN route characteristics of high efficiency.
Description of drawings
Fig. 1 is the system configuration schematic diagram of network system first preferred embodiment of the present invention;
Fig. 2 is that the preferred embodiment of the calling routing processing unit of switching equipment in the network system shown in Figure 1 is formed schematic diagram;
Fig. 3 is the system configuration schematic diagram of network system second preferred embodiment of the present invention;
Fig. 4 is that the preferred embodiment of location server in the network system shown in Figure 3 is formed schematic diagram;
Fig. 5 is the first preferred embodiment schematic flow sheet of calling route selection method of the present invention;
Fig. 6 is the second preferred embodiment schematic flow sheet of calling route selection method of the present invention.
Embodiment
The present invention is described in detail with preferred embodiment below in conjunction with accompanying drawing.
With reference to figure 1, this figure is the system configuration schematic diagram of network system first preferred embodiment of the present invention.
The described network system of present embodiment comprises calling/called user, IAD, Tandem Gateway and switching equipment, wherein said calling/called user can adopt the session initiation protocol (SIP of direct access switching equipment, Session Initiation Protocol) terminal, also can adopt other to insert the terminal of switching equipment by IAD, pstn telephone terminal for example, perhaps insert the telephone terminal of switching equipment, repeat no more here by the PSTN switch.
Described switching equipment is as call control device, it directly influences the quality of speech quality to the selection of calling out route, the described switching equipment of present embodiment is realized jumping the intercommunication of a plurality of PSTN switch with next by described Tandem Gateway, in addition in the present embodiment in switching equipment pre-configured and Route Selection condition that storage comprises the caller ip address information at least and the corresponding relation of calling out route, wherein, described caller ip address information can be calling party's access gateway address information, it also can be calling party's Tandem Gateway address information, can also be calling terminal device address information, perhaps other can identify calling party's IP address information, repeat no more here.
In addition, can also adopt the Route Selection condition and the corresponding relation of calling out route of the caller ip address information of supporting IP address wildcard in the described switching equipment, for example, the caller ip address is 10.11.xx.xx, and switching equipment can be supported the calling route with 10.11 address of the IP arbitrarily correspondences of taking the lead.
After switching equipment receives call user information, switching equipment is resolved described calling user information to obtain the Route Selection condition that comprises caller IP address information at least, can determine corresponding calling route according to the described described Route Selection condition that comprises the caller ip address information at least pre-configured and storage of Route Selection condition query of caller ip address information that comprises at least with the corresponding relation of calling out route.
Need illustrate, for realizing IP address-based call route selecting, the Route Selection condition of being obtained in the present embodiment comprises the caller ip address information at least, in addition according to practical business service needs, described Route Selection condition can also comprise: call source, Caller Category, call time section, called number and/or bearer service type etc., repeat no more here.
With reference to figure 2, switching equipment described in the present embodiment is realized mainly including the calling routing processing unit based on the correlation function of the call route selecting of IP address information, for realizing IP address-based call route selecting, calling out routing processing unit described in the present embodiment mainly includes: memory cell 101, caller ip address information acquiring unit 102 and route determining unit 103, wherein
With reference to above stated specification, Route Selection condition described in the present embodiment comprises the caller ip address information at least in the specific implementation, simultaneously according to actual needs can also be in conjunction with call source, Caller Category, call time section, any of optional Route Selection condition such as called number (or called number prefix) and bearer service type or a plurality of combinations (only exemplify here, do not limit other combinative Route Selection conditions), for example, in a preferred embodiment, described Route Selection condition be the caller ip address information in conjunction with called number prefix information, the Route Selection condition that described memory cell 103 storages described comprises the caller ip address information at least and the corresponding relation of calling out route as shown in Table 1:
Table one
| The caller ip address information | The called number prefix | Call out route |
| 10.11.12.12 | 6540 | 1 |
| 10.11.12.13 | 6540 | 2 |
| …… | …… | …… |
Wherein, the caller ip address is that 10.11.12.12 calls out route 1 in conjunction with 6540 called number prefix correspondence, and the caller ip address is that 10.11.12.13 calls out route 2 in conjunction with 6540 called number prefix correspondence.
Caller ip address information acquiring unit 102, described caller ip address information acquiring unit 102 is mainly used in resolves call user information to obtain the Route Selection condition that comprises the caller ip address information at least, with reference to above stated specification, for realizing call route selecting based on the caller ip address, when resolving call user information, at least need to parse the caller ip address information, in addition, also can parse other different Route Selection conditional informations of this caller ip address information combination, repeat no more here.
For example, corresponding relation with aforementioned table one is an example, when the caller ip address be the calling subscriber A of 10.11.12.12 and calling subscriber B that the caller ip address is 10.11.12.13 to dial the called number prefix be 6540 called subscriber, switching equipment will select different routes (in the present embodiment switching equipment will be calling subscriber A and calling subscriber B respectively selective call route 1 and call out route 2).
In addition, same with reference to shown in Figure 2, as a kind of preferred realization, the described route determining unit 103 of present embodiment can comprise:
With reference to figure 3, this figure is the system configuration schematic diagram of network system second preferred embodiment of the present invention.
Network system described in the present embodiment mainly comprises calling/called user, IAD, Tandem Gateway, location server and switching equipment, identical with first embodiment, described calling/called user can adopt the conversation beginning protocol terminal of direct access switching equipment, also can adopt other to insert the terminal of switching equipment by IAD, pstn telephone terminal for example, perhaps insert the telephone terminal of switching equipment, repeat no more here by the PSTN switch.
For realizing call route selecting based on the IP address information, in the present embodiment in location server pre-configured and Route Selection condition that storage comprises the caller ip address information at least and the corresponding relation of calling out route, with reference to above stated specification, wherein, described caller ip address information can be calling party's access gateway address information equally, it also can be calling party's Tandem Gateway address information, perhaps also can be calling terminal device address information, in addition, can also adopt the Route Selection condition and the corresponding relation of calling out route of the caller ip address information of supporting IP address wildcard in the location server, repeat no more here.
After switching equipment received call user information, switching equipment was resolved described calling user information to obtain the Route Selection condition that comprises the caller ip address information at least; Switching equipment is according to the calling route of the described Route Selection condition of obtaining that comprises the caller ip address information at least to described location server inquiry correspondence; Route Selection condition that comprises the caller ip address information at least that described location server is stored in advance according to the described Route Selection condition query that comprises the caller ip address information at least and the corresponding relation of calling out route are determined corresponding calling route, and described definite call routing information is returned to switching equipment.
Need illustrate, realization is based on the call route selecting of IP address information, identical with first embodiment, the Route Selection condition of being obtained in the present embodiment comprises the caller ip address information at least, in addition according to practical business service needs, described Route Selection condition can also comprise: call source, Caller Category, call time section, called number and/or bearer service type etc., repeat no more here.
With reference to figure 4, this figure is the composition schematic diagram of the preferred embodiment of switching equipment and location server in the network system of the present invention, and wherein said location server mainly comprises: memory cell 201 and route determining unit 202, wherein
Same, with reference to above stated specification, Route Selection condition described in the present embodiment comprises the caller ip address information at least, can also repeat no more here in conjunction with: call source, Caller Category, call time information such as section, called number and/or bearer service type according to actual needs simultaneously.
Route determining unit 202, described route determining unit 202 are mainly used in according to the described corresponding relation of Route Selection condition query memory cell 201 storages that comprise the caller ip address information at least determines corresponding calling route.
In addition, same with reference to shown in Figure 4, as a kind of preferred realization, the described route determining unit 202 of present embodiment can comprise:
Above-mentioned location server is the main calling routing inquiry of realizing in network system, accordingly, for including the switching equipment of calling out routing processing unit, the calling routing processing unit of switching equipment described in the present embodiment is provided with: caller ip address information acquiring unit 211 and calling routing inquiry unit 212, wherein
Caller ip address information acquiring unit 211, described caller ip address information acquiring unit are mainly used in resolves call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
Call out routing inquiry unit 212, described calling routing inquiry unit 212 is mainly used in according to the described Route Selection condition of caller ip address information that comprises at least to the corresponding calling route of described location server inquiry.
Illustrate that below in conjunction with Fig. 1 and Fig. 5 the present invention realizes the method first preferred embodiment flow process of call route selecting, mainly may further comprise the steps:
Step s31, switching equipment resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
During concrete enforcement, if the calling subscriber is a sip terminal, described caller ip address information can be thought the IP address of this sip terminal, if described calling subscriber is the PSTN terminal that inserts switching equipment by IAD, described caller ip address information then can be the IP address of this IAD.
Step s32, switching equipment is according to the Route Selection condition that comprises the caller ip address information at least and the definite corresponding calling route of the corresponding relation of calling out route of himself storage of the described Route Selection condition query that obtains.
Illustrate that below in conjunction with Fig. 4 and Fig. 6 the present invention realizes the method second preferred embodiment flow process of call route selecting, mainly may further comprise the steps:
Step s41, switching equipment resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
Step s42, switching equipment is with the described calling route that comprises the Route Selection condition of caller ip address information to location server inquiry correspondence at least;
Step s43, the Route Selection condition that comprises the caller ip address information at least that location server is stored in advance according to the described Route Selection condition query that comprises the caller ip address information at least that obtains is determined corresponding calling route with the corresponding relation of calling out route;
Step s44, location server returns to switching equipment with described definite call routing information.
To sum up, when call route selecting, only need parse the Route Selection condition that comprises the caller ip address at least of carrying in the call user information; Can inquire about according to the described Route Selection condition of obtaining that comprises the caller ip address information at least then and determine and this corresponding calling route of obtaining of the Route Selection condition that comprises the caller ip address information at least, in addition, maybe the calling route of this coupling is unavailable when waiting other situations with the calling route of the described Route Selection condition coupling that comprises the caller ip address at least not existing, also can carry out call route selecting according to other method, be above-mentioned route determining unit and the corresponding composition function unit of carrying out Route Selection thereof, and the corresponding composition function unit of location server and execution Route Selection thereof, there is not the calling routing mode that mates with the Route Selection condition that comprises the caller ip address information at least, can also adopt other Route Selection technology, repeat no more here.
The above only 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 should be considered as protection scope of the present invention.
Claims (15)
1, a kind of switching equipment includes the calling routing processing unit, it is characterized in that, described calling routing processing unit comprises:
Memory cell is used to store Route Selection condition that comprises the caller ip address information at least and the corresponding relation of calling out route;
Caller ip address information acquiring unit is used to resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
The route determining unit is determined corresponding calling route according to the described corresponding relation of the described Route Selection condition query cell stores of obtaining that comprises the caller ip address information at least.
2, switching equipment according to claim 1 is characterized in that, described route determining unit comprises:
The query processing unit, according to the corresponding relation of the described Route Selection condition query cell stores of obtaining that comprises the caller ip address information at least, judge whether to exist the calling route of mating with the described Route Selection condition of obtaining that comprises the caller ip address information at least;
The Route Selection unit, when the calling route that exists with the described Route Selection condition coupling of obtaining that comprises the caller ip address information at least, will with the calling route of the described Route Selection condition coupling of obtaining that comprises the caller ip address information at least as the calling route of selecting.
3, a kind of location server is characterized in that, comprising:
Memory cell is used to store Route Selection condition that comprises the caller ip address information at least and the corresponding relation of calling out route;
The route determining unit is determined corresponding calling route according to the described corresponding relation of the Route Selection condition query cell stores that comprises the caller ip address information at least.
4, location server according to claim 3 is characterized in that, described route determining unit comprises:
The query processing unit according to the corresponding relation of the Route Selection condition query cell stores that comprises the caller ip address information at least, judges whether to exist and the described calling route that comprises the Route Selection condition coupling of caller ip address information at least;
The Route Selection unit, when the calling route that exists with the described Route Selection condition coupling that comprises the caller ip address information at least, with the calling route of described and the Route Selection condition coupling that comprises the caller ip address information at least as the calling route of selecting.
5, a kind of switching equipment includes the calling routing processing unit, it is characterized in that, described calling routing processing unit comprises:
Caller ip address information acquiring unit is used to resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
Call out the routing inquiry unit, be used for according to the Route Selection condition that comprises the caller ip address information at least to the corresponding calling route of location server inquiry.
6, a kind of network system includes switching equipment, and described switching equipment includes the calling routing processing unit, it is characterized in that, described calling routing processing unit comprises:
Memory cell is used to store Route Selection condition that comprises caller IP address at least and the corresponding relation of calling out route;
Caller ip address information acquiring unit is used to resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
The route determining unit is determined corresponding calling route according to the described corresponding relation of the described Route Selection condition query cell stores of obtaining that comprises the caller ip address information at least.
7, network system according to claim 6 is characterized in that, described route determining unit comprises:
The query processing unit according to the corresponding relation of the Route Selection condition query cell stores that comprises the caller ip address information at least, judges whether to exist and the described calling route that comprises the Route Selection condition coupling of caller ip address information at least;
The Route Selection unit, when the calling route that exists with the Route Selection condition coupling that comprises the caller ip address information at least, with the calling route of described and the Route Selection condition coupling that comprises the caller ip address information at least as the calling route of selecting.
8, a kind of network system includes switching equipment, and described switching equipment includes the calling routing processing unit, it is characterized in that, described network system also comprises:
Location server stores Route Selection condition that comprises the caller ip address information at least and the corresponding relation of calling out route, and the calling routing inquiry request of response switching equipment is returned corresponding calling route;
Described calling routing processing unit comprises:
Caller ip address information acquiring unit is used to resolve call user information to obtain the Route Selection condition that comprises the caller ip address information at least;
Call out the routing inquiry unit, be used for according to the Route Selection condition that comprises the caller ip address information at least to the corresponding calling route of described location server inquiry.
9, network system according to claim 8 is characterized in that, described location server comprises:
Memory cell is used to store Route Selection condition that comprises the caller ip address information at least and the corresponding relation of calling out route;
The route determining unit is determined corresponding calling route according to the described described corresponding relation of the Route Selection condition query cell stores of caller ip address information that comprises at least.
10, network system according to claim 9 is characterized in that, described route determining unit comprises:
The query processing unit according to the described corresponding relation that comprises the Route Selection condition query cell stores of caller ip address information at least, judges whether to exist and the described calling route that comprises the Route Selection condition coupling of caller ip address information at least;
The Route Selection unit, when the calling route that exists with the Route Selection condition coupling that comprises the caller ip address information at least, with the calling route of described and the Route Selection condition coupling that comprises the caller ip address information at least as the calling route of selecting.
11, a kind of calling route selection method is characterized in that, this method comprises:
Resolve call user information to obtain the Route Selection condition that comprises the caller ip address at least;
Determine and this corresponding calling route of obtaining of the Route Selection condition that comprises the caller ip address information at least according to the described Route Selection condition query that comprises the caller ip address information at least that obtains.
12, calling route selection method according to claim 11 is characterized in that, described inquiry determines that the calling route corresponding with this Route Selection condition of obtaining that comprises the caller ip address information at least is:
Switching equipment is according to the described Route Selection condition query that comprises the caller ip address information at least that obtains Route Selection condition that comprises the caller ip address information at least of himself storing and the corresponding relation of calling out route, and then definite and this corresponding calling route of obtaining of the Route Selection condition that comprises the caller ip address information at least.
13, calling route selection method according to claim 11 is characterized in that, described inquiry determines that the calling route corresponding with this Route Selection condition of obtaining that comprises the caller ip address information at least is:
Switching equipment is according to the calling route of the described Route Selection condition of obtaining that comprises the caller ip address information at least to location server inquiry correspondence;
Route Selection condition that comprises the caller ip address information at least that the location server inquiry himself is stored and the corresponding relation of calling out route, and then determine and the described corresponding calling route of obtaining of the Route Selection condition that comprises the caller ip address information at least;
Location server returns to switching equipment with described definite call routing information.
According to each described calling route selection method of claim 11-13, it is characterized in that 14, described Route Selection condition also comprises:
Call source, Caller Category, call time section, called number and/or bearer service type;
Described switching equipment or location server inquiry are determined to call out route and are comprised:
According to the caller ip address information in conjunction with call source, Caller Category, call time section, called number and/or bearer service type the Route Selection condition determine corresponding calling route.
15, calling route selection method according to claim 14 is characterized in that, described caller ip address information is caller IAD IP address information or caller Tandem Gateway IP address information or calling terminal IP address of equipment information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610132461XA CN1997083B (en) | 2006-12-30 | 2006-12-30 | Network system and selection method of call route |
| PCT/CN2007/071385 WO2008083602A1 (en) | 2006-12-30 | 2007-12-29 | Call route selecting method, system, device and emergency call process system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610132461XA CN1997083B (en) | 2006-12-30 | 2006-12-30 | Network system and selection method of call route |
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| Publication Number | Publication Date |
|---|---|
| CN1997083A true CN1997083A (en) | 2007-07-11 |
| CN1997083B CN1997083B (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610132461XA Expired - Fee Related CN1997083B (en) | 2006-12-30 | 2006-12-30 | Network system and selection method of call route |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008083602A1 (en) * | 2006-12-30 | 2008-07-17 | Huawei Technologies Co., Ltd. | Call route selecting method, system, device and emergency call process system |
| CN102036281A (en) * | 2010-12-31 | 2011-04-27 | 华为技术有限公司 | Method, device and system for querying routes in CS (circuit switching) domain |
| WO2011060715A1 (en) * | 2009-11-18 | 2011-05-26 | 中国移动通信集团公司 | Method for implementing emergency call, system and device thereof |
| CN102984061A (en) * | 2011-09-07 | 2013-03-20 | 华为软件技术有限公司 | Calling routing policy acquiring method and server and system |
| CN105306366A (en) * | 2014-05-29 | 2016-02-03 | 中国移动通信集团公司 | Data routing method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050213565A1 (en) * | 2004-03-26 | 2005-09-29 | Barclay Deborah L | Method for routing an emergency call from a voice over internet protocol phone to a public safety answering point |
| US7184746B2 (en) * | 2004-07-13 | 2007-02-27 | Lucent Technologies Inc. | Method and apparatus for providing network support for a wireless emergency call |
-
2006
- 2006-12-30 CN CN200610132461XA patent/CN1997083B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008083602A1 (en) * | 2006-12-30 | 2008-07-17 | Huawei Technologies Co., Ltd. | Call route selecting method, system, device and emergency call process system |
| WO2011060715A1 (en) * | 2009-11-18 | 2011-05-26 | 中国移动通信集团公司 | Method for implementing emergency call, system and device thereof |
| CN102036281A (en) * | 2010-12-31 | 2011-04-27 | 华为技术有限公司 | Method, device and system for querying routes in CS (circuit switching) domain |
| CN102984061A (en) * | 2011-09-07 | 2013-03-20 | 华为软件技术有限公司 | Calling routing policy acquiring method and server and system |
| CN105306366A (en) * | 2014-05-29 | 2016-02-03 | 中国移动通信集团公司 | Data routing method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1997083B (en) | 2012-06-27 |
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