CN1633187B - Communication system based on subscriber small switch and method for realizing communication thereof - Google Patents
Communication system based on subscriber small switch and method for realizing communication thereof Download PDFInfo
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- CN1633187B CN1633187B CN 200310121893 CN200310121893A CN1633187B CN 1633187 B CN1633187 B CN 1633187B CN 200310121893 CN200310121893 CN 200310121893 CN 200310121893 A CN200310121893 A CN 200310121893A CN 1633187 B CN1633187 B CN 1633187B
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Abstract
This invention discloses a system for realizing mobile virtual private network service including a fixed switch network, a mobile switch network, also a small user switch of PBX extension connected with the gate mobile switch center of the mobile switch network, a route information providing unit providing panning numbers, the corresponding relation of PBX mobile number and said panning number to PBX, or providing mobile numbers to PBX based on the corresponding relation connected with the mobile switch network. The method includes: accessing PBX into the mobile switch network, assigning a mobile number and an abbreviated short number to each PBX extension. Internal phone can make calls to each other by abbreviated short numbers and mobile number in a same VPMN group. The called phone can display the abbreviated number.
Description
Technical field
The present invention relates to communication technical field, be meant communication system and realization method for communicating thereof especially based on private branch exchange (PBX).
Background technology
At present, the PBX of enterprise mostly is by laying the switching network of access via telephone line to fixed operator as the subscriber exchange of public phone network.The network access mode of subscriber exchange comprises that mainly full-automatic, semi-automatic, full-automatic and semi-automatic mixing, human relay working, multiple spot mixing etc. are several.
The network access mode that automatically enters public network is meant that subscriber exchange enters public network and end office's interface, i.e. DOD+DID mode in full-automatic direct dialing mode.If private branch exchange system go out, go into the selector stage that relaying is connected to public network end office (EO), the out once dialing sound of only listening switch is called for short the DOD1 mode, Incoming can be dialed directly extension subscriber, is called for short the DID mode.If the striking out of private branch exchange system is connected to the user class of public network end office (EO), need to listen twice dialing tone to enter public network, be called for short the DOD2 mode.Incoming is picked out by end office's selector stage, and directly incoming call is called for short the DID mode to this private exchange user.
What the semi-automatic network access mode that enters public network was meant the private network switch goes out, goes into the user class that relaying all is connected to public end office (EO), and breathing out needs to listen secondary dial tone, i.e. a DOD2 mode.Incoming call is picked out by end office's user class, goes to extension subscriber through the console of private branch exchange system, promptly is called for short the BID mode.
Full-automatic and semi-automatic hybrid mode enters public network and is meant that large-capacity user switch to the exhalation relaying of public network is full-automatic mode, i.e. the DOD1 mode.The incoming call relaying as required, a part for automatically dialing directly the user, another part incoming call relaying is connected to console, by human relay working to extension subscriber.
Enter public network in the human relay working mode and be meant when private network and public network interface, when a side of switch or both sides are manual office, the private branch exchange system user through human relay working to public network.
The multiple spot hybrid mode enters public network and is meant that several dedicated offices can adopt above several mode respectively according to the distribution place and the interoffice distance of traffic direction, exchange in the local network, enters public network at the distinct interface point.
PBX can be divided into following two kinds according to the numbering of PBX extension set and the mode of sending calling number:
A kind of is for PBX distributes one or more general numbers, and enterprise oneself carries out the cornet numbering to the PBX extension set, can dial mutually by cornet between the enterprises extension set.When the PBX extension set is done caller and dialed external call, send general number or general number+extension.When external call is called out extension set, dial general number and be routed to console, be forwarded to calledly by console, or directly dial general number+extension and be routed to called.
Another kind is for each PBX extension set distributes a Local Number, can dial mutually by abbreviated dialing between each PBX extension set simultaneously.When PBX dials external call, by with switch between signaling cooperate, can externally send the trombone of extension set correspondence, i.e. Local Number, the other side's caller identification number is exactly this trombone.Like this, when external call is dialed this trombone, can directly be routed to the PBX extension set.
Along with the development of technology, the access way of PBX adopts the network access mode that automatically enters public network more and more at present, and correspondingly fixed operator is that each PBX extension set distributes a Local Number.The PBX extension set can directly be dialed external call or dial external call by dialing prefix, and prefix is generally " 0 " or " 9 "; External call is dialed the corresponding Local Number of PBX extension set can directly be routed to corresponding extension set.And, can carry out abbreviated dialing between the PBX extension set usually, promptly dial inner short codes and continue.
Because the competition between each operator, the situation that makes a PBX insert a plurality of operators switching network simultaneously engenders that also promptly PBX can insert fixedly switching network and mobile telephone exchange network by different relaying groups respectively.At present, the PBX access way comprises two kinds, and a kind of is directly to link to each other with fixing switching network, and links to each other with mobile telephone exchange network by fixing switching network; Another kind is to link to each other with mobile telephone exchange network with fixing switching network simultaneously.
Fig. 1 is that PBX directly inserts the fixedly networking structure schematic diagram of switching network.Referring to shown in Figure 1, PBX is linked into fixedly switching network by end office (EO) (LS), and only directly links to each other with fixed network.In this state, fixed operator is that each PBX extension set distributes trombone, i.e. a Local Number.Can pass through the Local Number between the extension set, or the cornet that condenses is dialed mutually.When the PBX extension set is dialed phone beyond the PBX extension set, the telephone number of directly dialing external call continues, when dial be mobile phone the time, speech channel need be transferred by the GMSC (gateway mobile switching center) (GMSC) of fixing gateway of switching network (GW) and mobile telephone exchange network.External call directly dials the Local Number or area code+Local Number can be routed to corresponding PBX extension set, and when external call was mobile phone, speech channel need be by the GMSC and the GW switching of mobile telephone exchange network.
Therefore, in networking structure shown in Figure 1, if some mobile operator is fixedly switching network and fixed number resource not, can not realize the unified short codes numbering between PBX extension set and the enterprises mobile phone, therefore this access way will be unfavorable for that these mobile operator get involved the competition of PBX traffic.And, be unfavorable for that therefore enterprise reduces communications cost because calling and the outgoing between mobile phone and the PBX extension set even converse, all needs two network switches of fixed network and mobile network between an enterprises phone.
Fig. 2 inserts the fixedly networking structure schematic diagram of switching network and mobile telephone exchange network simultaneously for PBX.Referring to shown in Figure 2, PBX is linked into fixedly switching network by LS, inserts mobile telephone exchange network by GMSC.This networking mode is developed by first kind of networking mode, is the result of Mobile Network Operator and fixed network operators competition PBX traffic.This mode is that each PBX extension set distributes a Local Number by fixed operator.Can dial mutually by the trombone or the cornet that condenses between the PBX extension set.When the PBX extension set was dialed phone beyond the PBX extension set, the telephone number of directly dialing external call continued, when dial be landline telephone the time, speech channel continues by fixing switching network; When dial be mobile phone the time, speech channel continues by mobile telephone exchange network.External call directly dials the Local Number or area code+Local Number can be routed to corresponding PBX extension set, and when external call was landline telephone, speech channel was by fixedly switching network switching.When external call is mobile phone, continue by mobile telephone exchange network under local calling and the inward toll access the remote network situation, under the long-distance mobile calling access the proximate network situation, speech channel need be by the GMSC and the GW switching of mobile telephone exchange network.
Therefore, in networking structure shown in Figure 2, because some mobile operator not fixedly switching network and fixed number resource make mobile operator be on a sticky wicket when getting involved the competition of PBX traffic.And this access way can not realize the unified short codes numbering between PBX extension set and the enterprises mobile phone.
For above-mentioned two kinds of networking modes, because fixedly the calling route of switching network is directly to be undertaken by the other side's number, so PBX inserts fixedly switching network and for behind the unique number of PBX extension set distribution the whole network, the PBX extension set is when can doing caller, behind the corresponding number of local and remote making call, switching network can arrive corresponding PBX extension set with call proceeding according to extension.
Along with popularizing of mobile phone, enterprises employee outside the PBX extension set, also is equipped with the mobile phone of oneself usually except an office telephone is arranged.There has been the requirement that unified cornet is numbered, cornet is dialed mutually in enterprise gradually for the landline telephone and the mobile phone of inside.The mode of switching network does not satisfy this requirement and present PBX inserts fixedly.This mainly is because the calling routing mode of mobile telephone exchange network is different from fixedly switching network.Mobile phone can be roamed in network coverage, when mobile phone is started shooting, and be to the positional information of attaching position register (HLR) registration oneself.When portable terminal when being called, if caller also is a portable terminal, needs to call out the office point of initiating and obtain called roaming number to its visitor location register (VLR) by called ownership HLR, arrive call proceeding called by roaming number then.If caller is a landline telephone, after then caller inserts the GMSC of mobile telephone exchange network networking, in called VLR, obtain called roaming number again, arrive call proceeding called by roaming number then.If simply PBX is linked into mobile telephone exchange network, and distribute mobile number for the PBX extension set, the enrollment process because the PBX extension set is not started shooting, can not in VLR and HLR, register, can not distribute the mobile phone roaming number, therefore, in HLR, can not normally search, the strange land making call not these extension sets.
Summary of the invention
In view of this, an object of the present invention is to provide a kind of communication system, make the PBX extension set utilize the mobile number resource of mobile telephone exchange network to communicate based on private branch exchange.
Another object of the present invention provides a kind of realization method for communicating, make unified short codes numbering between the same PBX of enterprise extension telephone and the enterprises mobile phone, thereby realize utilizing the cornet resource to continue between the PBX of enterprise extension set and the enterprises mobile phone.
A further object of the invention provides a kind of realization mobile virtual private network method for communicating, makes the cornet conversation that can utilize unified numbering in same VPMN group between the PBX of the enterprise extension set and enterprises mobile phone.
A kind of communication system based on private branch exchange provided by the invention comprises: comprise fixedly switching network and mobile telephone exchange network at least, also comprise:
At least the private branch exchange that comprises a PBX extension set, described private branch exchange links to each other with the GMSC (gateway mobile switching center) of mobile telephone exchange network;
Routing iinformation provides the unit, is used for Providing Roaming Number to the PBX extension set, and the mobile number of record PBX extension set and the corresponding relation between the described roaming number, provide mobile number according to described corresponding relation to the PBX extension set then, link to each other with mobile telephone exchange network.
A kind of realization method for communicating provided by the invention comprises: for the PBX extension set distributes mobile number resource, this method comprises in advance:
After the mobile telephone exchange network side receives that the PBX extension set is the call request of caller, judge that according to called number called is portable terminal or fixed terminal, if portable terminal, then from the HLR of mobile telephone exchange network side, obtain routing iinformation according to called number, and arrive call proceeding called according to this routing iinformation, if fixed terminal, then passing through fixedly, the gateway of switching network arrives call proceeding called;
After the mobile telephone exchange network side receives that the PBX extension set is called call request, whether the access point of judging this calling is the affiliated GMSC of PBX extension set, if, then arrive this call proceeding called according to called number, otherwise, HLR is this call distribution roaming number, and in HLR the corresponding relation between record this roaming number and this PBX extension set mobile number, again according to this roaming number, with the GMSC of this call proceeding under the PBX extension set, this GMSC is according to the roaming number of this calling, obtains corresponding mobile number in the roaming number that writes down from HLR and the corresponding relation of mobile number, again according to this mobile number with call proceeding to called.
A kind of realization mobile virtual private network method for communicating provided by the invention comprises: private branch exchange is inserted mobile telephone exchange network, and private branch exchange and portable terminal be divided into same mobile virtual private network group, for PBX extension set and portable terminal in this group distribute the mobile number and the cornet resource that condenses, corresponding one by one between described condense cornet and the mobile number, also comprise:
A. after the call request in the GMSC of mobile telephone exchange network side receives this mobile virtual private network group, trigger the intelligent dialing business, and send the start detection point request message that contains called number to the SCP that the MSC with the mobile telephone exchange network side is connected;
After B.SCP receives this request message, judge that called number is mobile number or condenses cornet, if mobile number, execution in step C then, otherwise, according to the described corresponding relation that condenses between cornet and mobile number, determine the mobile number of this cornet correspondence that condenses, execution in step C;
C.SCP sends the indication that continues that continues that contains called mobile number to GMSC, after GMSC receives this indication, triggers called intelligent service according to called mobile number, arrives call proceeding called.
Further comprise calling number in the described start detection point request message, step B comprises:
After B1, SCP receive this start detection point request message, begin to charge for caller;
After step C triggers called intelligent service, and in this call proceeding before called, further comprise: SCP is called charging.
SCP contains the caller short codes in continuing of sending of GMSC continued indication in step C, and then when continuing, GMSC sends to the caller short codes called, after the success that continues, and called display of calling short codes.
Call request in the group of mobile virtual private network described in the steps A is that the PBX extension set is that caller, mobile phone are called call request.
Step C comprises:
C11, from the HLR/VLR of mobile telephone exchange network side, obtain roaming number according to called mobile number, again according to the roaming number that obtains with call proceeding to called.
Call request in the group of mobile virtual private network described in the steps A is that mobile phone is that caller, PBX extension set are called call request.
Step C comprises:
C21, be that this PBX extension set distributes roaming number, then according to described roaming number and called mobile number with call proceeding to called.
Step C comprises:
The MSC of C211, mobile telephone exchange network side sends the SRI message that contains Subscriber Number to HLR;
After C212, HLR receive this SRI message, judge that this Subscriber Number is PBX number segment or roaming number, if PBX number, then send the roaming number of PBX extension set to MSC, and the corresponding relation of record roaming number and PBX extension set mobile number, execution in step C213 then is if roaming number, then execution in step C214;
After C213, MSC receive this roaming number, according to this roaming number with call proceeding to the GMSC that inserts the PBX extension set, GMSC sends the SRI message of this roaming number, execution in step C212 then to HLR;
C214, HLR obtain the pairing mobile number of this roaming number from the corresponding relation of the roaming number of self record and mobile number, and this mobile number is sent to GMSC, and delete the record of corresponding relation between this roaming number and mobile number, GMSC according to described PBX number segment with call proceeding to called PBX extension set.
Call request in the group of mobile virtual private network described in the steps A is that the PBX extension set is that caller, PBX extension set are called call request.
When the caller in the call request or called when being the PBX extension set, GMSC goes into relaying according to the mobile number of this PBX extension set correspondence or PBX to trigger corresponding IN service.
When the caller in the call request in the steps A was portable terminal, described intelligent dialing business was the O-CSI triggering according to the user;
When the caller in the call request in the steps A was the PBX extension set, described intelligent dialing business was to trigger according to the calling number section.
When called in the call request in the steps A was portable terminal, described called intelligent service was to trigger according to T-CSI;
When called in the call request in the steps A was the PBX extension set, described called intelligent service was to trigger according to the called number section.
The present invention inserts mobile telephone exchange network with PBX, distributes a mobile number and the cornet that condenses for each PBX extension set, and external call is routed to corresponding PBX extension set by dialing this mobile number; In same VPMN group, can dial the VPMN short codes that called phone can display of calling between the intercommunication phone mutually by condense cornet or mobile number.
Description of drawings
Fig. 1 is the schematic network structure of prior art;
Fig. 2 is the schematic network structure of prior art;
Fig. 3 is for realizing schematic network structure of the present invention;
Fig. 4 receives the Message Processing schematic flow sheet that GMSC/MSC sends routing information for HLR;
Fig. 5 dials PBX extension set signaling process for the strange land landline telephone;
Fig. 6 dials PBX extension set signaling process for mobile phone;
Fig. 7 is a system group network schematic diagram of the present invention;
Fig. 8 calls out the signaling process of PBX extension set with the VPMN cornet for the PBX extension set;
Fig. 9 is the PBX extension set is called out the PBX extension set with mobile number a signaling process;
Figure 10 calls out group internal mobile phone signaling process for the PBX extension set with the VPMN short codes;
Figure 11 is the PBX extension set is called out the group internal mobile phone with mobile number a signaling process;
Figure 12 is the signaling process of PBX call extension group external call;
Figure 13 calls out PBX extension set signaling process for the group internal mobile phone with the VPMN cornet;
Figure 14 is that the group internal mobile phone is called out PBX extension set signaling process with mobile number;
Figure 15 calls out group internal mobile phone signaling process for the group internal mobile phone with the VPMN cornet;
Figure 16 is that the group internal mobile phone is called out group internal mobile phone signaling process with mobile number;
Figure 17 is a mobile calls group external call signaling process in the group;
Figure 18 is the embodiment schematic diagram of the networking structure of realization the inventive method.
Embodiment
Core content of the present invention is: PBX and one or more mobile phones are divided into a VPMN group, PBX is inserted the switching network of mobile operator, be that PBX extension set and mobile phone distribute the mobile number and the cornet that condenses, and mobile number and condense and have one-to-one relationship between the cornet.At this VPMN group internal, can dial mutually by cornet between PBX extension set and PBX extension set, the mobile phone.When the PBX extension set is caller, PBX extension set when being called, the GMSC of mobile telephone exchange network side according to called mobile number with call proceeding to called; When the PBX extension set is caller, mobile phone when being called, the GMSC of mobile telephone exchange network side according to called mobile number and the roaming number that from HLR, obtains with call proceeding to called; When mobile phone is that caller, PBX extension set are when being called, for the PBX extension set distributes roaming number, and write down corresponding relation between this roaming number and the called mobile number, during GMSC under being routed to the PBX extension set, obtain called mobile number according to the roaming number of record and the corresponding relation between the called mobile number, be routed to called according to called mobile number again.Corresponding relation between roaming number and the mobile number can be recorded in routing iinformation separately and provide in the unit, and routing iinformation provides the unit can be arranged among the HLR, also can be a separate equipment unit.
And, to dial when called by the cornet that condenses when caller, the mobile telephone exchange network side will obtain called corresponding mobile number with the corresponding relation that condenses between the cornet according to mobile number, and then continues according to the mobile number that obtains.
Describe technical scheme of the present invention in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 3, inserting GMSC with PBX below is example, illustrates that PBX inserts the networking structure of mobile telephone exchange network.PBX inserts mobile telephone exchange network by GMSC, is that each PBX extension set distributes a mobile number by mobile operator, the corresponding number segment of each PBX.Can dial mutually by the mobile number or the cornet that condenses between the PBX extension set.
In networking structure shown in Figure 3, when the PBX extension set was dialed phone beyond this VPMN group, the telephone number of directly dialing external call continued, and the situation that handshaking procedure and common mobile phone make a call is similar.And external call is directly dialed mobile number can be routed to corresponding PBX extension set.When the PBX extension set makes a call, if called be landline telephone, GMSC is forwarded to the GW of the fixedly switching network that is attached thereto with speech channel, is routed to called by landline telephone.If called is mobile phone, then GMSC gets roaming number by called HLR to VLR, speech channel is routed to called by roaming number.
When caller is local landline telephone or nonlocal landline telephone and when adopting access the remote network, fixedly switching network is routed to the GMSC of mobile telephone exchange network with speech channel, directly is routed to the PBX extension set by GMSC; When caller is when roaming into local mobile phone, to comprise not roamer of this locality, by in this locality mobile switching network do PBX section route data, speech channel can be routed directly to GMSC, be routed to the PBX extension set by GMSC.When external call is nonlocal landline telephone and adopts access the proximate network, or external call is nonlocal mobile phone, or external call is for local mobile phone but local mobile switching network when not doing PBX section route data, continuing of speech channel needs the special cooperation of HLR and GMSC, below describes in detail.
Describe the called access procedure of PBX extension set mobile number below in detail.
Though the PBX extension set has distributed mobile number, because the PBX extension set does not exist start and shutdown, the enrollment process when also just not having the mobile phone start in VLR and HLR.So, when MSC or GMSC handle calling to these numbers, can not get roaming number, call out also just obstructed.Therefore, present embodiment is transformed PBX extension set HLR that opens an account and the GMSC that inserts PBX.Be PBX specific assigned mobile number section and roaming number section.Mobile number section to PBX among the HLR is carried out mark; Simultaneously, safeguard one with the dynamic mapping table of PBX extension set mobile number to the PBX roaming number.Simultaneously, the GMSC that inserts PBX also will transform.When sending routing information (SRI) request message when HLR receives, if the number in the SRI message is a mobile number, then distribute a roaming number for this request, and write down corresponding relation between this roaming number and the mobile number, if the number in the SRI message is a roaming number, then to from the corresponding relation between this roaming number and the mobile number, obtain the mobile number of this roaming number correspondence, according to this mobile number the PBX extension set be arrived in call proceeding again.
Referring to shown in Figure 4, when HLR received the SRI message of GMSC/MSC, its processing procedure was specific as follows:
Step 401: the number in the judgement SRI message belongs to the mobile number section of PBX, the roaming number section of PBX still is real phone number, if the mobile number section of PBX, execution in step 402, otherwise, if the roaming number section of PBX, execution in step 403, if real phone number, then execution in step 404;
Step 402: distribute the PBX roaming number of a free time, return to GMSC or MSC, and the corresponding relation of mobile number and roaming number is recorded in the mapping table, processing finishes then, jumps out;
Step 403: the inquiry mapping table, obtain corresponding mobile number, this mobile number is returned to GMSC or MSC as roaming number; And with respective record deletion in the mapping table to discharge the roaming number resource, processing finishes then, jumps out;
Step 404:HLR sends to the VLR of this mobile phone and gets roaming number message (PRN), returns to GMSC/MSC after obtaining roaming number, and this moment, HLR handled by normal condition.
Illustrate respectively that below HLR and GMSC when landline telephone and mobile phone are dialed the PBX extension set cooperate the signaling process of complete connection.
One, the strange land landline telephone is dialed PBX extension set signaling process.
Referring to shown in Figure 5, it is specific as follows that the strange land landline telephone is dialed PBX extension set signaling procedure:
Step 501: the strange land landline telephone will be routed to mobile telephone exchange network GMSC1 by the fixing GW of switching network to the calling of PBX extension set.
The HLR that step 502:GMSC1 opens an account to the PBX extension set sends and gets the roaming number request, and contains the called phone number in this request.
After step 503:HLR receives this and gets the roaming number request, determine the called PBX of being extension set according to the called phone number, directly distribute a roaming number, preserve the corresponding relation of this roaming number and PBX extension, and this roaming number is sent to GMSC1 from the PBX roaming number section.
Step 504:GMSC1 according to this roaming number with call proceeding to the GMSC2 that inserts under the PBX.
Step 505:GMSC2 sends the SRI message that contains roaming number to HLR.
After step 506:HLR receives this SRI message, obtain the mobile number of this roaming number correspondence in the corresponding relation that from step 503, writes down according to the roaming number in the SRI message, and this mobile number is sent to GMSC2, the corresponding relation of deleting roaming number and PBX extension simultaneously discharges PBX roaming number resource.
Step 507:GMSC2 arrives PBX according to the routing of PBX extension with call proceeding.
Step 508:PBX is accomplished to continuing of PBX extension set.
Two, mobile phone is dialed PBX extension set signaling process.
As shown in Figure 6, it is as follows that the mobile phone of VPMN group outside is dialed in the VPMN group PBX extension set signaling process:
Step 601: mobile phone is initiated to the request of PBX call extension, comprises the mobile number of PBX extension set in this call request.
After step 602:MSC received this call request, HLR sent the SRI request message that contains this PBX extension set mobile number under the PBX extension set.
After step 603:HLR receives this SRI request message, determine the called PBX of being extension set according to the mobile number in the SRI request message, directly distribute a roaming number, and return this roaming number, preserve the corresponding relation of this roaming number and mobile number simultaneously to MSC from the PBX roaming number section.
After step 604:MSC receives this roaming number, call proceeding is arrived the GMSC that inserts PBX according to roaming number.
Step 605:GMSC sends to HLR and gets the SRI request message that contains roaming number.
After step 606:HLR receives this SRI request message, determine that according to mobile number wherein Subscriber Number belongs to the PBX roaming number section, the corresponding relation of looking into record in the step 603 obtains the mobile number of this roaming number correspondence, and this mobile number returned to GMSC, delete the corresponding relation of roaming number and PBX extension simultaneously, discharge PBX roaming number resource.
Step 607:GMSC arrives PBX according to this mobile number with call proceeding.
Step 608:PBX is accomplished to continuing of PBX extension set.
Based on above-mentioned networking structure, PBX and mobile phone can be divided into same VPMN group, and PBX is linked into mobile telephone exchange network, be that PBX extension set and mobile phone distribute the mobile number and the cornet that condenses, and mobile number and condense corresponding one by one between the cornet.At this VPMN group internal, can dial mutually by cornet between PBX extension set and PBX extension set, the mobile phone.
Describe the detailed process of utilizing above-mentioned networking structure to realize the VPMN business in detail below in conjunction with the drawings and specific embodiments.
Referring to shown in Figure 7, VPMN SCP is the service control point of VPMN business in the intelligent network, write down each VPMN group internal PBX extension set and the short codes of mobile phone and the corresponding relation of mobile number, strengthen professional customization by the mobile network between VPMN SCP and the switching network GMSC/MSC and use (CAMEL) application protocol (CAP) alternately.When VPMN group internal phone made a call, the GMSC/MSC trigger intelligent business was finished the translation of charging, VPMN short codes and mobile number to the VPMN Service Control Point by VPMN SCP.Simultaneously, VPMN SCP can provide other characteristics of VPMN business to these users.Need to prove the different terminals in the same VPMN group, VPMN IN service triggering mode difference.The PBX extension set decides, when called, speech channel is routed to GMSC, triggers the VPMN IN service by GMSC according to the PBX number segment; Originating CAMEL Subscription Information (O-CSI) according to the user when mobile phone is done caller triggers the VPMN IN service; Mobile phone does that the T-CSI according to the user triggers the VPMN IN service when called.
In calling procedure, the called number that GMSC/MSC reports the caller mobile number and dials to SCP by CAP start detection point (IDP) message, if called number is a mobile number, then need not carry out the translation of number, VPMN SCP issue CAP continue to continue (CONTINUE) instruct GMSC/MSC directly to continue; If called number is the VPMN short codes, then VPMN SCP will carry out the VPMN short codes to the translation of mobile number, and translation result is connected destination address parameter in (CONNECT) instruction by CAP passes to GMSC/MSC and just can be routed to called.Here, the number translation of VPMN server call flow process in two steps: the first step, inquire about its corresponding group number according to the caller mobile number; Second step, inquire about called mobile number according to group number and called VPMN short codes.
Do when called when the PBX extension set, speech channel is routed to GMSC, and GMSC triggers the professional called flow of VPMN according to called number segment; When mobile phone is done called the time, MSC triggers the professional called flow of VPMN according to user's Terminating CAMEL Subscription Information (T-CSI).In the called flow, report the calling and called mobile number in the CAPIDP message.VPMN SCP judges whether in the group to call out, and promptly whether the group of numbers of calling and called parties correspondence is number identical, calls out in group, and VPMN SCP issues CAPCONTINUE and instructs GMSC/MSC directly to continue; If call out in the group, VPMN SCP obtains the caller short codes according to the caller mobile number, passes to MSC by the universal number parameter in the CAP CONNECT instruction, is used as called caller identification number.
Describing the present invention below respectively in detail utilizes network configuration shown in Figure 3 to realize the processing procedure of VPMN business.
One, the PBX extension set is called out the signaling process of PBX extension set with the VPMN cornet.
The signaling process that the PBX extension set is called out the PBX extension set with the VPMN short codes is as shown in Figure 8:
Step 801:PBX extension set sends initial address message message (IAM) GMSC is arrived in call proceeding.
Step 802～803:GMSC triggers intelligent calling service according to the calling number section, sends CAP IDP message to SCP, and called number is the VPMN short codes in the IDP message at this moment.
Step 804～807:SCP is to the called number translation that carries out, obtain called mobile number, and to the caller processing of chargeing, issue the CAP request then and report that Basic Call State Model BCSM incident (RRBE), CAP Apply Charging (AC), CAP CONNECT message indication GMSC continue to continue, wherein the destination Mobile Station International ISDN Number parameter in the CAP CONNECT message is called mobile number.
Step 808:GMSC receives after the CAP CONNECT message, triggers intelligent called service according to the called number section, sends CAP IDP message to SCP.
Step 809～812:SCP is to the called processing of chargeing, judge calling and called and belong to same VPMN group, obtain the VPMN short codes of caller correspondence, issue CAP RRBE, CAP AC, CAP CONNECT message indication GMSC then and continue to continue, wherein the universal number parameter in the CAP CONNECT message is the VPMN short codes of caller.
Step 813:GMSC arrives PBX according to called mobile number with call proceeding, sends IAM message to PBX, and calling number parameter wherein is the universal number parameter in the CAP CONNECT message, i.e. the VPMN cornet of caller PBX extension set correspondence.PBX is accomplished to continuing of called PBX extension set, and called caller identification number is a caller VPMN short codes.
Two, the PBX extension set is called out the signaling process of PBX extension set with mobile number.
The signaling process that the PBX extension set is called out the PBX extension set with mobile number as shown in Figure 9.
The signaling process difference that the PBX extension set is called out the PBX extension set with the signaling process and the PBX extension set of mobile number calling PBX extension set with the VPMN short codes is: it is mobile number that calling procedure reports called number, VPMN SCP need not to carry out the translation of called number, continues to continue so issue CAPCONTINUE message indication GMSC in the calling procedure.
The PBX extension set is called out under the PBX extension set situation with mobile number, and called caller identification number also can be the VPMN short codes of caller.It is similar to dial the situation that shows the cornet that condenses all the time mutually between this point and the present PBX extension set.
Three, the PBX extension set is called out group internal mobile phone signaling process with the VPMN short codes.
The signaling process that the PBX extension set is called out the group internal mobile phone with the VPMN short codes is as shown in figure 10:
Step 1001～1007:PBX extension set is called out in the group internal mobile phone signaling process with the VPMN short codes, calling procedure is with identical with short codes calling PBX extension set, VPMN SCP finishes number translation, by CAP CONNECT message called mobile number is handed down to GMSC and continues.
After step 1008～1009:GMSC obtains the mobile phone mobile number, send SRI message to user attaching HLR and get roaming number, after HLR receives this message, find that the user has CAMEL Subscription Information CSI, then earlier do not get roaming number, directly return user's CSI.
Step 1010～1015:GMSC triggers called intelligent service according to T-CSI wherein, sends CAP IDP message to SCP.SCP is to the called processing of chargeing, and judges calling and called and belongs to same VPMN group, obtains the VPMN short codes of caller correspondence, by CAP CONNECT message the VPMN short codes of caller is handed down to GMSC then.
Step 1016～1019:GMSC receives after the CAP CONNECT message of called flow, carrying out normal call proceeding handles, send SRI message to called ownership HLR once more and get roaming number, with for the first time different be, this time indication suppresses the CSI parameter in the message, after HLR receives this message, get called roaming number, get the back and return to GMSC to called visit VLR.After GMSC obtains roaming number, continue according to roaming number.Calling number replaces with the VPMN short codes of caller in the out IAM message, and therefore called caller identification number is this VPMN short codes.
Four, the PBX extension set is called out group internal mobile phone signaling process with mobile number.
The signaling process that the PBX extension set is called out the group internal mobile phone with mobile number as shown in figure 11.
The signaling process difference that the PBX extension set is called out inner mobile phone with the signaling process and the PBX extension set of mobile number calling group internal mobile phone with the VPMN short codes is that it is mobile number that calling procedure reports called number, and SCP need not to carry out the translation of called number.So issuing CAP CONTINUE message indication GMSC in the calling procedure continues to continue.
The PBX extension set is called out under the mobile phone situation with mobile number, and called caller identification number also can be the VPMN short codes of caller.
Five, PBX call extension group external call signaling process.
The signaling process of PBX call extension group external call as shown in figure 12.
For external call, can only call out with mobile number or fixed telephone number.After the trigger intelligent business, SCP need not to carry out number translation.
Six, the group internal mobile phone is called out PBX extension set signaling process with the VPMN cornet.
The group internal mobile phone is called out PBX extension set signaling process as shown in figure 13 with the VPMN cornet:
Step 1301～1306: when mobile phone is called out the PBX extension set with the VPMN cornet, MSC triggers VPMN intelligence calling service according to user O-CSI, SCP charges to caller, finishes number translation, by CAP CONNECT message called mobile number is handed down to MSC and continues.
Step 1307～when 1310:MSC continued, the HLR transmission SRI that opens an account to PBX got roaming number.It is PBX segment number sign indicating number that HLR judges Subscriber Number, then distribute a PBX roaming number to return to MSC, and write down the corresponding relation of this roaming number and PBX extension set mobile number.MSC arrives call proceeding the GMSC that inserts PBX according to this roaming number.
When step 1311～1314:GMSC handles this calling, judge roaming number and belong to the PBX roaming number, so the HLR that opens an account to PBX sends the mobile number that SRI message is got the PBX extension set.HLR receive GMSC get SRI message after, judge that Subscriber Number is the roaming number of PBX, then looks into PBX roaming number and mobile number corresponding relation, obtain corresponding mobile number, delete this corresponding relation then, discharge PBX roaming number resource, return the mobile number of PBX extension set.
After step 1315～1321:GMSC obtains the mobile number of called PBX extension set, trigger intelligent called service according to the called number section.SCP is to the called processing of chargeing, and judges calling and called and belongs to same VPMN group, obtains the VPMN short codes of caller correspondence, by the universal number parameter in the CAP CONNECT message VPMN short codes of caller is handed down to GMSC then.GMSC arrives PBX according to called mobile number with call proceeding.PBX is accomplished to continuing of called PBX extension set, and called caller identification number is a caller VPMN short codes.
Seven, the group internal mobile phone is called out PBX extension set signaling process with mobile number.
The group internal mobile phone is called out PBX extension set signaling process as shown in figure 14 with mobile number.
The signaling process difference that the group internal mobile phone is called out the PBX extension set with the signaling process and the inner mobile phone of mobile number calling PBX extension set with the VPMN short codes is: it is mobile number that calling procedure reports called number, and VPMN SCP need not to carry out the translation of called number.SCP issues CAPCONTINUE message indication GMSC to be continued to continue.
Mobile phone is called out under the PBX extension set situation with mobile number, and called caller identification number also can be the VPMN short codes of caller.
Eight, the group internal mobile phone is called out group internal mobile phone signaling process with the VPMN cornet.
The signaling process that the group internal mobile phone is called out the group internal mobile phone with the VPMN cornet is as shown in figure 15:
The group internal mobile phone is called out the signaling process of group internal mobile phone with the VPMN cornet
Step 1501～1506: when the group internal mobile phone is called out the group internal mobile phone with the VPMN cornet, MSC triggers VPMN intelligence calling service according to user O-CSI, SCP charges to caller, finish number translation, by CAP CONNECT message called mobile number is handed down to MSC and continues.
Step 1507～when 1509:MSC continues, send SRI message to the HLR of called subscriber's ownership and get roaming number.HLR judges the user CAMEL Subscription Information (CSI), then directly returns CSI.
Step 1510～1515:MSC triggers intelligent called service according to user's T-CSI.SCP is to the called processing of chargeing, and judges calling and called and belongs to same VPMN group, obtains the VPMN short codes of caller correspondence, by the universal number parameter in the CAP CONNECT message VPMN short codes of caller is handed down to MSC then.
Step 1516～1518:MSC sends SRI message to the HLR of called subscriber's ownership once more and gets roaming number.Current SRI message indication suppresses CSI information.HLR sends PRN to called visit VLR, obtains returning to MSC behind the roaming number.
Step 1519:MSC arrives call proceeding according to called roaming number the MSC of called roaming.Called number is called roaming number in the IAM message that sends, and calling number is the VPMN short codes of caller.Called caller identification number is a caller VPMN short codes.
Nine, the group internal mobile phone is called out group internal mobile phone signaling process with mobile number.
The signaling process that the group internal mobile phone is called out the group internal mobile phone with mobile number is as shown in figure 16:
Inner mobile phone calls out the signaling process of inner mobile phone with mobile number and signaling process difference that inner mobile phone is called out inner mobile phone with the VPMN short codes is that it is mobile number that calling procedure reports called number, and SCP need not to carry out the translation of called number.SCP issues CAPCONTINUE message indication GMSC to be continued to continue.
Call out under the mobile phone situation with mobile number when inner mobile phone, called caller identification number can be the VPMN short codes of caller.
Ten, mobile calls group external call signaling process in the group.
Mobile calls group external call signaling process is as shown in figure 17 in the group:
For external call, can only call out with mobile number or fixed telephone number.After the trigger intelligent business, SCP need not to carry out number translation.
Need to prove that PBX directly inserts GMSC in the above-described embodiments, and PBX also can insert GMSC indirectly by a front end processor, as shown in figure 18.This access way makes network layer more clear, when existing under a plurality of PBX situations, can simplify the data configuration of GMSC.
Introducing under the PBX front end processor situation, the triggering of the last PBX extension set intelligence of GMSC calling service can be adopted the access code triggering mode.At this moment, need the FH-number transform of PBX front end processor to the called number increase access code in calling out, the access code that GMSC increases according to PBX triggers professional.In addition, generally speaking, the PBX extension set is called not to charge, if the PBX extension set is not show the requirement of VPMN short codes under the called situation, GMSC can not trigger PBX extension set called service.
For the triggering of PBX extension set IN service, the number of being section triggering mode in the foregoing description.Because after PBX inserts GMSC, the relaying that goes out, goes into of the GMSC that access is used all is certain, IN service also can come trigger intelligent business according to the relaying that goes out, goes into that GMSC uses, and when the GMSC processing is gone into the call request of relaying from PBX, triggers intelligent calling service that is:; When the calling of PBX out-trunk is gone in the GMSC processing, trigger intelligent called service.
Claims (7)
1. the communication system based on private branch exchange is characterized in that, comprises fixedly switching network and mobile telephone exchange network at least, and this system also comprises:
At least the private branch exchange that comprises a PBX extension set, described private branch exchange links to each other with the GMSC (gateway mobile switching center) of mobile telephone exchange network;
Routing iinformation provides the unit, be used for Providing Roaming Number to the PBX extension set, and the mobile number of record PBX extension set and the corresponding relation between the described roaming number, provide described mobile number according to the GMSC (gateway mobile switching center) of described corresponding relation under the PBX extension set, link to each other with mobile telephone exchange network.
2. system according to claim 1 is characterized in that, described private branch exchange links to each other with GMSC by the PBX front end processor.
3. system according to claim 1 is characterized in that, it is HLR that described routing iinformation provides the unit.
4. realize method for communicating for one kind, it is characterized in that for the PBX extension set distributes mobile number resource, this method also comprises in advance:
After the mobile telephone exchange network side receives that the PBX extension set is the call request of caller, judge that according to called number called is portable terminal or fixed terminal, if portable terminal, then from the HLR of mobile telephone exchange network side, obtain routing iinformation according to called number, and arrive call proceeding called according to this routing iinformation, if fixed terminal, then passing through fixedly, the gateway of switching network arrives call proceeding called;
After the mobile telephone exchange network side receives that the PBX extension set is called call request, whether the access point of judging this calling is the affiliated GMSC of PBX extension set, if, then arrive this call proceeding called according to called number, otherwise, HLR is this call distribution roaming number, and in HLR the corresponding relation between record this roaming number and this PBX extension set mobile number, again according to this roaming number, with the GMSC of this call proceeding under the PBX extension set, this GMSC is according to the roaming number of this calling, obtains corresponding mobile number in the roaming number that writes down from HLR and the corresponding relation of mobile number, again according to this mobile number with call proceeding to called.
5. realize the mobile virtual private network method for communicating for one kind, it is characterized in that, private branch exchange is inserted mobile telephone exchange network, and private branch exchange and portable terminal be divided into same mobile virtual private network group, for PBX extension set and portable terminal in this group distribute the mobile number and the cornet resource that condenses, corresponding one by one between described condense cornet and the mobile number, this method also comprises:
A. after the call request in the MSC of mobile telephone exchange network side receives this mobile virtual private network group, trigger the intelligent dialing business, and send the start detection point request message that contains called number to the SCP that is connected with this MSC;
After B.SCP receives this request message, judge that called number is mobile number or condenses cornet, if mobile number, execution in step C then, otherwise, according to the described corresponding relation that condenses between cornet and mobile number, determine the mobile number of this cornet correspondence that condenses, execution in step C;
C.SCP sends the indication that continues that continues contain called mobile number to MSC, when call request described in the steps A is that mobile phone is caller, PBX extension set when being called, may further comprise the steps:
The MSC of C211, mobile telephone exchange network side sends the SRI message that contains Subscriber Number to HLR;
After C212, HLR receive this SRI message, judge that this Subscriber Number is PBX mobile number or roaming number, if PBX mobile number, then send the roaming number of PBX extension set to MSC, and the corresponding relation of record roaming number and PBX extension set mobile number, execution in step C213 then is if roaming number, then execution in step C214;
After C213, MSC received this roaming number, with the GMSC of call proceeding to access PBX extension set, GMSC sent the SRI message that contains roaming number, execution in step C212 then to HLR according to this roaming number;
C214, HLR obtain the pairing mobile number of this roaming number from the corresponding relation of the roaming number of self record and mobile number, and this mobile number is sent to GMSC, GMSC triggers called intelligent service according to described PBX mobile number, and called PBX extension set is arrived in call proceeding.
6. method according to claim 5 is characterized in that, further comprises calling number in the described start detection point request message, and step B comprises:
After B1, SCP receive this start detection point request message, begin to charge for caller;
After step C triggers called intelligent service, and in this call proceeding before called, further comprise: SCP is called charging.
7. method according to claim 5 is characterized in that, described intelligent dialing business is the O-CSI triggering according to the user.
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| CN 200310121893 CN1633187B (en) | 2003-12-22 | 2003-12-22 | Communication system based on subscriber small switch and method for realizing communication thereof |
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| CN 200310121893 CN1633187B (en) | 2003-12-22 | 2003-12-22 | Communication system based on subscriber small switch and method for realizing communication thereof |
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| CN1633187B true CN1633187B (en) | 2010-04-07 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100488221C (en) * | 2006-03-30 | 2009-05-13 | 华为技术有限公司 | System and method for implementing PBX/PABX service |
| CN101098551B (en) * | 2006-06-27 | 2010-05-26 | 中国电信股份有限公司 | Calling route selection method and communication system under roaming access mode |
| CN100455056C (en) * | 2006-08-18 | 2009-01-21 | 侯万春 | System and method for realizing group special mobile communication smart card |
| CN1929631B (en) * | 2006-09-25 | 2012-05-23 | 华为技术有限公司 | Method and device for confirming internal user of call center |
| CN101068230B (en) * | 2007-06-21 | 2010-06-02 | 中兴通讯股份有限公司 | Method for realizing user exchanger in media gateway |
| CN101674663B (en) * | 2008-09-09 | 2012-08-15 | 中国移动通信集团安徽有限公司 | System and method for processing calls between private branch exchange and mobile network and intelligent platform |
| CN101808295B (en) * | 2009-02-16 | 2013-01-02 | 中国移动通信集团江西有限公司 | Multi-VPMN (Virtual Private Mobile Network) call control method, service control point and system |
| CN101998379A (en) * | 2009-08-26 | 2011-03-30 | 华为技术有限公司 | Method, device and system for processing number portability |
| CN102083232A (en) * | 2009-11-26 | 2011-06-01 | 中国移动通信集团北京有限公司 | Method, system and device for implementing VPMN (Virtual Private Mobile Network) voice service |
| CN106131812B (en) * | 2016-08-30 | 2019-12-24 | 中国人民解放军信息工程大学 | On-line reduction system and method for called subscriber number of mobile telephone network |
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| CN1111082A (en) * | 1993-06-23 | 1995-11-01 | 诺基亚电信公司 | Method for call establishment |
| WO1998012886A1 (en) * | 1996-09-19 | 1998-03-26 | Nokia Telecommunications Oy | Location management of a wireless terminal |
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| CN1111082A (en) * | 1993-06-23 | 1995-11-01 | 诺基亚电信公司 | Method for call establishment |
| CN1217861A (en) * | 1996-03-13 | 1999-05-26 | 艾利森电话股份有限公司 | Mobile telecommunications network having integrated wireless office system |
| WO1998012886A1 (en) * | 1996-09-19 | 1998-03-26 | Nokia Telecommunications Oy | Location management of a wireless terminal |
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