CN104917717A - Calling method, equipment and system - Google Patents
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- CN104917717A CN104917717A CN201410086096.8A CN201410086096A CN104917717A CN 104917717 A CN104917717 A CN 104917717A CN 201410086096 A CN201410086096 A CN 201410086096A CN 104917717 A CN104917717 A CN 104917717A
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Abstract
The invention relates to the field of communication technologies, in particular to a calling method, calling equipment and a calling system. The calling method provided by the embodiment of the invention comprises the steps that: an MGCF receives a calling request containing a called number launched by CS user equipment; and the MGCF sends the calling request to an ISBC connected with the MGCF determines that the called number is a special number, so that the ISBC sends the calling request to an IP call center corresponding to the called number. By adopting the scheme of the embodiment of the invention, the CS user can call the IP call center using the special number, and the calling time delay can be reduced since the I-CSCF does not need to query the ISBC connected with the called IP call center from HSS, ENUM and DNS.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method of calling, equipment and system.
Background technology
Along with IP(Internet Protocol, Internet Protocol) development of network technology, adopt IP technology building Call Center Platform to become possibility.Existing IP call center (IPCC, IP Call Center) by IP private network or public network access IMS(IP Multimedia Subsystem, IP Multimedia System) ASBC(Access Session Border Control in network, access session-orient E-Service), thus realize the direct-connected IMS core net of IP call center.
Be illustrated in figure 1 the schematic diagram that existing IP call center is connected to IMS core net.Wherein, when there being user to call out IP call center, I-CSCF(Interrogation Call Session Control Function in IMS core net, query call conversation control function) need inquiry HSS(Home Subscriber Server, family's subscribed services device), ENUM(Electronic Numbering, ENUM maps), DNS(Domain NameService, name server) obtain the ASBC that called IP call center connects, and by P-CSCF(Proxy Call Session Control Function, Proxy Call Session Control Function) call request is sent to the ASBC that called IP call center connects, by ASBC, call request is sent to the IP call center be connected with this ASBC again.
The such scheme of prior art needs the number of IP call center to succeed in registration at IMS core net, if do not succeeded in registration, cannot commence business.But, for some special numbers, proprietary customer service number such as such as bank, insurance etc. (as 95588,400X) is all directly issued by Ministry of Industry and Information or siphunculus Ju Deng government department, be not that operator has number by oneself, cannot succeed in registration at operator's IMS core net, therefore, the IP call center of these special numbers is used not commence business by IMS core net.
In sum, there is the problem using non-operator cannot be commenced business by IMS core net from number IP call center in prior art.
Summary of the invention
Embodiments provide a kind of method of calling, equipment and system, in order to solve the problem that the non-operator of the use existed in prior art cannot be commenced business by IMS core net from number IP call center.
A kind of method of calling, described method comprises:
MGCF MGCF receives the call request comprising called number initiated by circuit switching (CS) subscriber equipment;
Described call request, when determining that described called number is special number, is sent to the interconnected session-orient E-Service ISBC be connected with described MGCF by described MGCF, to make described ISBC, described call request is sent to IP call center corresponding to described called number.
Because MGCF is when receiving that to comprise called number be the call request of special number, directly this call request is sent the ISBC be connected with this MGCF, CS user can be realized and call out the IP call center using special number, and due to the ISBC not needing I-CSCF to connect from HSS, ENUM, the called IP call center of DNS query, can call delay be reduced.
The method also comprises:
Described call request, when determining that described called number is not special number, is sent to the query call conversation control function I-CSCF be connected with described MGCF by described MGCF.
So, not can that the call request of special number routes to I-CSCF by the called number comprised, carry out subsequent treatment by I-CSCF.
A kind of method of calling, described method comprises:
It is the call request of special number that interconnected session-orient E-Service ISBC receives the called number comprised that the MGCF MGCF that is connected with described ISBC sends;
Described call request is sent to IP call center corresponding to described called number by described ISBC.
So, CS user can be realized and call out the IP call center using special number.
The method also comprises:
Described ISBC receives the call request using the IP call center of special number to send;
The call request that described IP call center sends is sent to the query call conversation control function I-CSCF be connected with described ISBC by described ISBC.
So, can realize using the IP call center of special number to call out other users.
A kind of method of calling, described method comprises:
Interconnected session-orient E-Service ISBC receives the call request using the IP call center of special number to send;
Described call request is sent to the query call conversation control function I-CSCF be connected with described ISBC by described ISBC.
So, can realize using the IP call center of special number to call out other users.
A kind of MGCF MGCF, described MGCF comprises:
Receiver module, for receiving the call request comprising called number initiated by CS subscriber equipment;
Sending module, for when determining that described called number is special number, described call request is sent to the interconnected session-orient E-Service ISBC be connected with described MGCF, to make described ISBC, described call request is sent to IP call center corresponding to described called number.
So, CS user can be realized and call out the IP call center using special number, and the ISBC owing to not needing I-CSCF to connect from HSS, ENUM, the called IP call center of DNS query, can call delay be reduced.
Described sending module also for:
When determining that described called number is not special number, described call request is sent to the query call conversation control function I-CSCF be connected with described MGCF.
So, not can that the call request of special number routes to I-CSCF by the called number comprised, carry out subsequent treatment by I-CSCF.
A kind of interconnected session-orient E-Service ISBC, described ISBC comprises:
Receiver module, the called number comprised sent for receiving the MGCF MGCF that is connected with described ISBC is the call request of special number;
Sending module, for being sent to IP call center corresponding to described called number by described call request.
So, CS user can be realized and call out the IP call center using special number.
Described receiver module also for:
Receive the call request using the IP call center of special number to send;
Described sending module also for:
The call request that described IP call center sends is sent to the query call conversation control function I-CSCF be connected with described ISBC.
So, can realize using the IP call center of special number to call out other users.
A kind of calling system, described system comprises MGCF MGCF and interconnected session-orient E-Service ISBC:
Described MGCF, for receiving the call request comprising called number initiated by CS subscriber equipment, and when determining that described called number is special number, is sent to the ISBC be connected with described MGCF by described call request;
Described ISBC, for after to receive the called number comprised that the MGCF that is connected with described ISBC sends be the call request of special number, is sent to IP call center corresponding to described called number by described call request.
So, CS user can be realized and call out the IP call center using special number, and the ISBC owing to not needing I-CSCF to connect from HSS, ENUM, the called IP call center of DNS query, can call delay be reduced.
Described MGCF also for:
When determining that described called number is not special number, described call request is sent to the query call conversation control function I-CSCF be connected with described MGCF.
So, not can that the call request of special number routes to I-CSCF by the called number comprised, carry out subsequent treatment by I-CSCF.
Described ISBC also for:
After the call request receiving the IP call center's transmission using special number, the call request that described IP call center sends is sent to the I-CSCF be connected with described ISBC
So, can realize using the IP call center of special number to call out other users.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that existing IP call center is connected to IMS core net;
Fig. 2 is the step schematic diagram of method of calling in the embodiment of the present invention;
Fig. 3 is the route schematic diagram that in the embodiment of the present invention, CS user calls out the IP call center using special number;
Fig. 4 is the route schematic diagram that in the embodiment of the present invention, IMS user calls out the IP call center using special number;
Fig. 5 is the step schematic diagram of method of calling in the embodiment of the present invention;
Fig. 6 is the step schematic diagram of method of calling in the embodiment of the present invention;
Fig. 7 uses the IP call center outgoing call IMS user of special number or the route schematic diagram of CS user in the embodiment of the present invention;
Fig. 8 is the structural representation of MGCF in the embodiment of the present invention;
Fig. 9 is the structural representation of ISBC in the embodiment of the present invention;
Figure 10 is the schematic diagram of calling system in the embodiment of the present invention.
Embodiment
The scheme of the embodiment of the present invention is by MGCF(Media Gateway Control Function, MGCF) direct-connected ISBC(Interconnection Session Border Control, interconnected session-orient E-Service), MGCF is receiving CS(Circuit Switched, circuit switching) the subscriber equipment called number comprised of initiating is when being the call request of special number, this call request directly can be sent the ISBC be connected with this MGCF; ISBC is when receiving the called number comprised that the MGCF that is connected with this ISBC sends and being the call request of special number, this call request can be sent to IP call center corresponding to called number, achieve CS user and call out the IP call center using special number.
Below in conjunction with Figure of description, embodiments of the present invention is further illustrated, but the present invention is not limited to the following examples.
Embodiment one:
As shown in Figure 2, in the embodiment of the present invention one, method of calling comprises the following steps:
Step 201:MGCF receives the call request comprising called number initiated by CS subscriber equipment;
This call request, when determining that this called number is special number, is sent to the ISBC be connected with this MGCF by step 202:MGCF, to make this ISBC, this call request is sent to IP call center corresponding to this called number.
In step 201, MGCF may receive from GMSC(Gateway Mobile Switching Center, GMSC (gateway mobile switching center)) or TMSC(Tandem Mobile Switching Center, tandem mobile switching centre) call request, wherein, this call request is initiated by CS subscriber equipment (such as fixed telephone).MGCF, when receiving the call request from GMSC or TMSC, also can carry out the conversion of agreement, such as, by ISUP(ISDN User Part, and ISDN User Part; ISDN:Integrated Service Digital Network, integrated services digital network) packet of form converts SIP(Session Initiation Protocol to, Session initiation Protocol) packet of form.
MGCF obtains the information of called number from the call request received, if called number is special number, then this call request is sent to the ISBC be connected with this MGCF, then by ISBC, this call request is sent to IP call center corresponding to this called number.Wherein, special number is that non-operator has number by oneself, cannot succeed in registration at carrier network, and MGCF can prestore special number (such as 95588).
As shown in Figure 3, for CS user calls out the route schematic diagram of the IP call center using special number.Suppose the PLMN(Public Land Mobile Network in Fig. 3, public land mobile network) user uses CS subscriber equipment A to dial the customer service number 95588 of the Industrial and Commercial Bank of China in Shanghai, the then VMSC(Visited Mobile-services Switching Center in Shanghai, visited mobile switching center) receive the call request of subscriber equipment A, this call request is routed to the TMSC in Shanghai by the VMSC in Shanghai, this call request is routed to Pekinese TMSC by the TMSC in Shanghai, and this call request is routed to Pekinese MGCF by Pekinese TMSC.Pekinese MGCF knows that from this call request called number is 95588, then this call request is routed to the ISBC be connected with this MGCF, by ISBC, this call request is routed to the IP call center of the Industrial and Commercial Bank of China, realize continuing of call session.
Suppose that the PLMN user in Fig. 3 uses CS subscriber equipment B to dial the customer service number 95588 of the Industrial and Commercial Bank of China in Beijing, then called VMSC receives the call request of subscriber equipment B, this call request is routed to Pekinese GMSC by Pekinese VMSC, and this call request is routed to Pekinese MGCF by Pekinese GMSC.Pekinese MGCF knows that from this call request called number is 95588, then this call request is routed to the ISBC be connected with this MGCF, by ISBC, this call request is routed to the IP call center of the Industrial and Commercial Bank of China, realize continuing of call session.
If MGCF determines that the called number comprised in the call request initiated by CS subscriber equipment is not special number, then this call request is sent to the I-CSCF be connected with this MGCF, adopts the method for existing call IMS user to realize continuing of call session afterwards.
It should be noted that, the special number in embodiment of the present invention scheme can be the customer service number (as 95588) not adding area code also can be the customer service number (01095588) adding area code, and MGCF can identify.
Because MGCF is when receiving that to comprise called number be the call request of special number, directly this call request is sent the ISBC be connected with this MGCF, CS user can be realized and call out the IP call center using special number, and due to the ISBC not needing I-CSCF to connect from HSS, ENUM, the called IP call center of DNS query, can call delay be reduced.
The CS of being user described above calls out the situation of the IP call center using special number, also may there is the situation that IMS user calls out the IP call center using special number in actual scene.
Be illustrated in figure 4 the route schematic diagram that IMS user calls out the IP call center using special number.It is the call request of special number that I-CSCF receives called number, I-CSCF inquires about SIP URI corresponding to called number according to this called number from ENUM, and from DNS, search the IP address of ISBC corresponding to this SIP URI, afterwards, this call request is sent to ISBC corresponding to this IP address according to the IP address found by I-CSCF.It is after the call request of special number that ISBC receives the called number comprised, and this call request is sent to IP call center corresponding to this called number.Wherein, in ENUM, prestore the corresponding relation of special number and SIP URI, in DNS, prestore the corresponding relation of the IP address of SIP URI and ISBC corresponding to special number.It is the call request of special number that I-CSCF can receive the called number that other IMS Client-initiateds comprise, and particularly, I-CSCF can receive call request that S-CSCF sends or the call request that other I-CSCF send.
Embodiment two:
The present embodiment two is a kind of method of callings belonging to same inventive concept with embodiment one, and therefore the enforcement of embodiment two see the enforcement of embodiment one, can repeat part and repeat no more.
As shown in Figure 5, in the embodiment of the present invention two, method of calling comprises the following steps:
It is the call request of special number that step 501:ISBC receives the called number comprised that the MGCF that is connected with this ISBC sends;
This call request is sent to IP call center corresponding to this called number by step 502:ISBC.
Be directly that the call request of special number sends the ISBC be connected with this MGCF by comprising called number due to MGCF, therefore, the called number comprised that ISBC can receive MGCF transmission is the call request of special number, and just this call request is sent to IP call center corresponding to this called number.
The IP call center of use special number described above is called situation, if this IP call center is caller, as shown in Figure 6, can comprise the following steps:
Step 601:ISBC receives the call request using the IP call center of special number to send;
The call request that this IP call center sends is sent to the I-CSCF be connected with this ISBC by step 602:ISBC.
As shown in Figure 7, for using the IP call center outgoing call IMS user of special number or the route schematic diagram of CS user.This call request, after the call request receiving the IP call center's transmission using special number, is sent to the I-CSCF be connected with this ISBC by ISBC.After I-CSCF receives call request, first inquiring about HSS, is local IMS user if called, then I-CSCF can find the IP address of terminating S-CSCF from HSS, and call request is routed to terminating S-CSCF.
Nonlocal IMS user if called, I-CSCF can not find terminating S-CSCF from HSS, then obtain called SIP URI(Uniform ResourceIdentifier according to called telephone number query ENUM again, universal resource identifier), and according to the IP address of the SIP URI found at DNS query dialed field I-CSCF, afterwards, call request is routed to the I-CSCF of dialed field by I-CSCF.
If be CS user called, call request is routed to MGCF by I-CSCF, and routing to GMSC(called according to called number by call request by MGCF is local CS user) or TMSC(called be nonlocal CS user).
It should be noted that, the executive agent of the executive agent of step 501 and step 502 and step 601 and step 602 can be same ISBC, also can be different ISBC.
Embodiment three:
The present embodiment three is a kind of MGCF belonging to same inventive concept with embodiment one, and therefore the enforcement of embodiment three see the enforcement of embodiment one, can repeat part and repeat no more.
As shown in Figure 8, shown MGCF comprises:
Receiver module 81 is for receiving the call request comprising called number initiated by CS subscriber equipment.
Described call request, for when determining that described called number is special number, is sent to the ISBC be connected with described MGCF by sending module 82, to make described ISBC, described call request is sent to IP call center corresponding to described called number.
Alternatively, described sending module 82 also for:
When determining that described called number is not special number, described call request is sent to the I-CSCF be connected with described MGCF.
It should be noted that, the description to each part major function to the description of each part of MGCF in the embodiment of the present invention three, in the embodiment of the present invention three, each part also possesses the function of the method step realized described in embodiment one, meanwhile, the MGCF in the embodiment of the present invention three also has the logic module performing each step of embodiment one.
Embodiment four:
The present embodiment four is a kind of ISBC belonging to same inventive concept with embodiment two, and therefore the enforcement of embodiment four see the enforcement of embodiment two, can repeat part and repeat no more.
As shown in Figure 9, described ISBC comprises:
Receiver module 91 is the call request of special number for the called number comprised receiving the MGCF that is connected with described ISBC and send.
Sending module 92 is for being sent to IP call center corresponding to described called number by described call request.
Alternatively, described receiver module 91 also for:
Receive the call request using the IP call center of special number to send.
Described sending module 92 also for:
The call request that described IP call center sends is sent to the I-CSCF be connected with described ISBC.
It should be noted that, the description to each part major function to the description of each part of ISBC in the embodiment of the present invention four, in the embodiment of the present invention four, each part also possesses the function of the method step realized described in embodiment two, meanwhile, the ISBC in the embodiment of the present invention four also has the logic module performing each step of embodiment two.
Embodiment five:
The present embodiment five is a kind of calling systems belonging to same inventive concept with embodiment one, and therefore the enforcement of embodiment five see the enforcement of embodiment one, can repeat part and repeat no more.
As shown in Figure 10, described system comprises MGCF1001 and ISBC1002:
Described call request for receiving the call request comprising called number initiated by CS subscriber equipment, and when determining that described called number is special number, is sent to the ISBC1002 be connected with described MGCF1001 by described MGCF1001.
Described ISBC1002, for after to receive the called number comprised that the MGCF1001 that is connected with described ISBC1002 sends be the call request of special number, is sent to IP call center corresponding to described called number by described call request.
Described MGCF1001 also for:
When determining that described called number is not special number, described call request is sent to the I-CSCF be connected with described MGCF.
Described ISBC1002 also for:
After the call request receiving the IP call center's transmission using special number, the call request that described IP call center sends is sent to the I-CSCF be connected with described ISBC1002.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. a method of calling, is characterized in that, described method comprises:
MGCF MGCF receives the call request comprising called number initiated by circuit switching (CS) subscriber equipment;
Described call request, when determining that described called number is special number, is sent to the interconnected session-orient E-Service ISBC be connected with described MGCF by described MGCF, to make described ISBC, described call request is sent to IP call center corresponding to described called number.
2. the method for claim 1, is characterized in that, the method also comprises:
Described call request, when determining that described called number is not special number, is sent to the query call conversation control function I-CSCF be connected with described MGCF by described MGCF.
3. a method of calling, is characterized in that, described method comprises:
It is the call request of special number that interconnected session-orient E-Service ISBC receives the called number comprised that the MGCF MGCF that is connected with described ISBC sends;
Described call request is sent to IP call center corresponding to described called number by described ISBC.
4. method as claimed in claim 3, it is characterized in that, the method also comprises:
Described ISBC receives the call request using the IP call center of special number to send;
The call request that described IP call center sends is sent to the query call conversation control function I-CSCF be connected with described ISBC by described ISBC.
5. a method of calling, is characterized in that, described method comprises:
Interconnected session-orient E-Service ISBC receives the call request using the IP call center of special number to send;
Described call request is sent to the query call conversation control function I-CSCF be connected with described ISBC by described ISBC.
6. a MGCF MGCF, is characterized in that, described MGCF comprises:
Receiver module, for receiving the call request comprising called number initiated by CS subscriber equipment;
Sending module, for when determining that described called number is special number, described call request is sent to the interconnected session-orient E-Service ISBC be connected with described MGCF, to make described ISBC, described call request is sent to IP call center corresponding to described called number.
7. MGCF as claimed in claim 6, is characterized in that, described sending module also for:
When determining that described called number is not special number, described call request is sent to the query call conversation control function I-CSCF be connected with described MGCF.
8. an interconnected session-orient E-Service ISBC, is characterized in that, described ISBC comprises:
Receiver module, the called number comprised sent for receiving the MGCF MGCF that is connected with described ISBC is the call request of special number;
Sending module, for being sent to IP call center corresponding to described called number by described call request.
9. ISBC as claimed in claim 8, is characterized in that, described receiver module also for:
Receive the call request using the IP call center of special number to send;
Described sending module also for:
The call request that described IP call center sends is sent to the query call conversation control function I-CSCF be connected with described ISBC.
10. a calling system, is characterized in that, described system comprises MGCF MGCF and interconnected session-orient E-Service ISBC:
Described MGCF, for receiving the call request comprising called number initiated by CS subscriber equipment, and when determining that described called number is special number, is sent to the ISBC be connected with described MGCF by described call request;
Described ISBC, for after to receive the called number comprised that the MGCF that is connected with described ISBC sends be the call request of special number, is sent to IP call center corresponding to described called number by described call request.
11. systems as claimed in claim 10, is characterized in that, described MGCF also for:
When determining that described called number is not special number, described call request is sent to the query call conversation control function I-CSCF be connected with described MGCF.
12. systems as claimed in claim 10, is characterized in that, described ISBC also for:
After the call request receiving the IP call center's transmission using special number, the call request that described IP call center sends is sent to the I-CSCF be connected with described ISBC.
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| CN107135132A (en) * | 2016-02-26 | 2017-09-05 | 中国移动通信集团公司 | A kind of network intercommunication method and network entity, controlled entity |
| CN107172067A (en) * | 2017-06-14 | 2017-09-15 | 北京小米移动软件有限公司 | A kind of call method, device and equipment |
| CN109743720A (en) * | 2019-01-04 | 2019-05-10 | 中国联合网络通信集团有限公司 | Call processing method, system and storage medium |
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