CN1340985A - Method and system for implementing VPN service on mobile network - Google Patents
Method and system for implementing VPN service on mobile network Download PDFInfo
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- CN1340985A CN1340985A CN 00122893 CN00122893A CN1340985A CN 1340985 A CN1340985 A CN 1340985A CN 00122893 CN00122893 CN 00122893 CN 00122893 A CN00122893 A CN 00122893A CN 1340985 A CN1340985 A CN 1340985A
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Abstract
A method for implementing VPN service over mobile network includes such steps as setting-up service access code of VPN in mobile network, setting-up VPN service detection mechanism in SSP, arranging the VPN service module including VPN service logic processing program and service data, detecting the VPN service by SSP when a telephone number beginning with the said access code is dialed, reporting to SCP, interactive communication with SCP, and allowing the VPN service logic in SCP to process the said calling.
Description
The present invention relates to provides professional field to the network terminal in telecommunications network, more particularly, relate to a kind of intelligent net system that utilizes the method for Intellight network mode realization centrex service and realize this method in mobile radio communication.
Along with development of Communication Technique, the service that society can provide signal post has also proposed more and more higher requirement.For example, some big business unit has the switching equipment of oneself, can be in private network of internal structure, with convenient communication and open service.But for the administrative body of distribution various places and the scope of the enterprise that constantly enlarges, in order to keep this private network, then need frequently to purchase PBX (Private BranchExchange),, caused great waste if enterprise's resettlement also will face problems such as mobile PBX.Certainly, enterprise also can rent special line and form the private network of oneself, but price is then very expensive.In addition, though some enterprises or unit desire to set up a private wore network network in inside, can't have the switching equipment of oneself owing to some restriction.Centrex service then can solve above-mentioned these problems.
Centrex service is exactly to utilize the resource of public phone network to provide a private network in logic to some group user, for these group users open service in this private network.Realized centrex service on the net at public landline telephone at present, attracted large quantities of clients' adding, department has increased income to the telecommunications operation.But along with rapidly popularizing and development of mobile communication technology, the online centrex service of landline telephone can not satisfy the mobile communication demand that the user increases day by day, needs to realize based on the online centrex service of public mobile telephone.
Therefore, purpose of the present invention just is to provide a kind of method of utilizing Intellight network mode to realize centrex service on mobile network, to satisfy the demand.
Intelligent Network is a kind of additional " increment " network that new business can be provided on original communication network quickly and efficiently, has the characteristic of quick introducing new business and dynamic load staging business.
A kind of method that in mobile radio communication, realizes centrex service with Intellight network mode of the present invention, this intelligent net system includes Service Control Point and Service Switching Point at least, wherein Service Switching Point is the tie point of intelligent net system and mobile network system, and this method comprises:
It is the centrex service access code that special-purpose number is set in mobile network;
Centrex service detection trigger mechanism is set in described Service Switching Point, triggers by above-mentioned centrex service access code;
In described Service Control Point, be provided with and comprise centrex service logical process program and business datum in interior centrex service module;
When the mobile subscriber dials when calling out with the telephone number of this centrex service access code beginning, detect centrex service and it is reported to Service Control Point by Service Switching Point, carry out interactive contact with Service Control Point, allow the centrex service logic in the Service Control Point to influence call treatment.
According to above-mentioned technical scheme, described calling can be divided into Virtual Private Network on-net call and off-net call, and short codes is that on-net call is differentiation in group net to add behind the service access code.
Further, described off-net call user can be classified, be divided into unrestricted calling, amount of money restriction call, number restriction call, forbid calling out.Described on-net call or off-net call are provided with roaming, long-distance call license restrictions etc.
Further, specific number segment can be set in described Virtual Private Network form closed user group, with open special conversation demand.Closed user group can be multiple setting, and promptly certain user can belong to a plurality of closed user groups simultaneously.
A kind of mobile intelligent net system that realizes said method of the present invention, at least comprise Service Switching Point, Service Control Point, SMAP (SMAP) and business management system (SMS), reach ip intelligent peripherals (IP), wherein Service Switching Point is the tie point of mobile network and intelligent net system, the one group of hardware module that has the signaling function of exchange for mobile switch with signaling function of exchange or common mobile switch.Be provided with centrex service detection trigger mechanism in the described Service Switching Point, trigger by the centrex service access code.Have in the described Service Control Point and comprise centrex service logical process program and business datum in interior centrex service module, when Service Switching Point detects centrex service and it is reported to Service Control Point, carry out interactive contact and influence call treatment by the centrex service logic with Service Switching Point.
According to technique scheme, described intelligent net system further includes service creation environment (SCE), generate centrex service by service creation environment (SCE), comprise centrex service logic and business datum, and it is tested, by business management system (SMS) this service logic and business datum are loaded in the Service Control Point, are used to handle the module of centrex service with generation.
Described mobile switch can be mobile switching centre (MSC) or MSC gateway (GMSC).Described ip intelligent peripherals (IP) can be independent be provided with or be set to one with Service Switching Point.
Mobile Virtual Private Network Service can provide the dedicated network business of Private Branch Exchange PBX in the similar fixed network for the mobile subscriber.This business allows the mobile subscriber in the private network is dialled cornet (as dialling four item sign indicating numbers).Mobile subscriber in the private network can form a closed user group, can carry out call screening, and the restriction of type of call etc. are user-friendly.For the enterprise customer, use Mobile Virtual Private Network reasonably to control telephone expenses on the basis of mobile phone effectively utilizing.For telecom operators, provide the mobile virtual private network business to attract group user effectively, increase sharply and distribute telephone numbers and traffic carrying capacity.
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is a mobile intelligent net system configuration schematic diagram.
Fig. 2 is a Mobile Virtual Private Network on-net call signalling diagram of the present invention.
Fig. 3 is a Mobile Virtual Private Network off-net call signalling diagram of the present invention.
The invention provides a kind of side that realizes centrex service (MVPN) at intelligent movable on the net Method, content comprises: in the on-net call, off-net call, net/off-net call restriction, closed user group, exhale Cry transfer, call out go beyond, net interior/off-net call obstruction, call operator, abbreviated dialing, voice mail, Speech polling, videoconference, the system that arranges prohibit dialing etc.
After telecommunication department is opened the online centrex service of intelligent movable, the user by such as and telecommunications The mode applications such as operator signs a contract, clear and definite both sides' responsibility-power-benefit are also used this business. Suppose mobile empty The service access number of intending private network is 600, then service-user can by dial as 600+XXXX this The number of sample carries out on-net call, calls out other users in the same Virtual Private Network; Also can dial as The such number of 600+XXXXXXXX carries out off-net call, calls out the outer user of private network. Can be with can The user who carries out off-net call classifies, and is divided into calling, the number of unconfined calling, amount of money restriction The restriction calling, forbid calling out several classes. Whether the calling interior for net or net is outer can add as allowing Roam, can dial the restrictions such as long-distance call.
Some special users can be set in VPN user form a closed user group. No Allow this closed user group user to call out user beyond the closed user group, do not allow yet closed user group with Outer user calls out the user of this closed user group. Can also draw thus the concept of multiple closed user group, Be that certain user can belong to a plurality of closed user groups simultaneously, satisfy special conversation demand.
Call out transfer and allow the user that the phone of making is transferred on another number, can arrange with me turns to Move, transfer to Voice Mailbox, transfer to fixed number, call forward on busy or the branch mode such as transfer on no reply. Function is gone beyond in calling makes the user go beyond calling out being subjected to can importing in the situation of call blocking authentication code Restriction. Call congestion can make on the basis of calling number identification, stops the private network user to call out in some net Number; In the situation of calling out offline, prevention MVPN user can be set call out the international long-distance number; This service feature can combine with the service feature of authentication code, realizes flexibly call manager.
For the number segment user, a VPN user can adopt to condense when calling out the interior user of net and dial Number. Also can set some net External Numbers is cornet; The user can arrange the Voice Mailbox of oneself, when can not And, the user is busy and during the situation such as no response, the accessible Voice Mailbox of the other side's calling is left a message the user After this can at any time obtain the other side's message; Virtual Private Network also can provide videoconference, and the system that arranges prohibits to be dialled Number etc.; Also but call operator requests help when the user wants help.
Referring to shown in Figure 1, be the system architecture of mobile intelligent net platform, it by Service Switching Point (SSP), Service control point (SCP), ip intelligent peripherals (IP), business management system (SMS), service creation environment (SCE) etc. several parts form.
SSP (Service Switching Point) is the tie point that connects existing mobile network and intelligent network, carries For the function that inserts intelligent network function collection. SSP can detect the request of IN service, and communicates by letter with SCP; Response is made in request to SCP, allows the service logic among the SCP to affect call treatment.
SCP (Service Control Point) is the core component of intelligent network, its storage user data and industry The affair logic. The major function of SCP is to receive Query Information and the Query Database that SSP sends here, carries out each Plant decoding; Simultaneously, SCP can start different service logics, root according to the call event of offering on the SSP Send the calling control instruction according to service logic to corresponding SSP, thereby realize various intelligent calls.
IP (Intelligent Peripheral) is the special resource of assisting to finish IN service. Usually has each Plant phonetic function, such as phonetic synthesis, the playback notice receives DTMF pulsing, carries out voice and knows Not etc. IP can be an independently physical equipment, also can be used as the part of SSP, and it is accepted The specified operation of SCP service logic is carried out in the control of SCP.
SMS (Service Management System) also is a kind of computer system. The general tool of SMS Standby 5 kinds of functions, i.e. service logic management, Service Data Management, user data management, professional monitoring with And traffic management. The new business logic that creates in service creation environment is input to by service supplier Among the SMS, the SMS SCP that again it packed into just can provide this new business in communication network.
The function of SCE (Service Creation Environment) is new according to client's demand generation Service logic. SCE provides friendly graphics edition interface for the service design person. The client utilizes various standards Design for drawing elements goes out the service logic of new business, and defines for it corresponding data.
Specify one embodiment of the present of invention below.
Service creation environment SCE realizes required service logic (operation flow) and the business datum (used database and variable in the process of service execution) of Mobile Virtual Private Network Service with the formal definition of software, form Mobile Virtual Private Network Service logic software module, thereby the generation Mobile Virtual Private Network Service, and the Mobile Virtual Private Network Service that generates verified and test.
Business management system SMS is loaded into Mobile Virtual Private Network Service logic, Mobile Virtual Private Network Service data and corresponding software module in the service control point (SCP), and afterwards, this business just can be moved.In the Mobile Virtual Private Network Service running, the implementation status of Mobile Virtual Private Network Service is monitored and added up, generate form.Unwanted the time, it can be removed from intelligent network.
SMAP SMAP, user and telecom operators sign after the contract of clear and definite both sides' responsibility-power-benefit, by SMAP with in this user's data information typing corresponding database, and by SMS with the data load that increases newly or revise in the VPN user database in SCP.
The service control point (SCP), after business management system SMS is loaded into SCP with the service logic relevant with centrex service, service data template and professional test point, promptly produced a software module that is used to handle centrex service among the SCP, this software module comprises a centrex service logical process program SLP and VPN user database.
The service switching point is provided with prepayment service detection trigger mechanism in SSP, when detecting prepayment service, it is reported among the SCP, and carries out interactive contact with SCP.
In embodiments of the present invention, the connection protocol between each parts is as follows: being TCP/IP between SCE and the SMS, can be wide area network or local area network (LAN) between SMAP and the SMS, for wide area network or local area network (LAN) are connected, is the NO.7 signaling network between SCP and the SSP between SMS and the SCP.
Accompanying drawing 2 shows Mobile Virtual Private Network on-net call signaling process, wherein
1)IAI(Initialize?Address?Information)
MSCa routes the call to SSP according to called number prefix 600;
2)IDP(Initialize?Detection?Point)
SSP analyzing called number 6000002 triggers business by DP3, and according to calling number calling is reported to corresponding SCP;
3)SRI(Send?Route?Information)
SCP sends the SRI request to HLR.
4)SRIack
HLR returns called roaming number and routing iinformation, can be used to charge to called.
5)AC(Application?Charge)、Connect
The true number that SCP will become to continue called MVPN number translation and need, and this calling carried out authentication.
SCP inserts the MVPN number 6000001 of caller in GeneralNumber when issuing the Connect operation, fill out 6000002 in OriginalCalledPartyNumber.
6)IAI
SSP carries out calling party number ' s convert and changes calling number into 6000001 when MSCb sends out IAI, and what called like this caller demonstration was seen is the MVPN Subscriber Number of caller;
Fig. 3 shows Mobile Virtual Private Network off-net call signaling process, wherein
1)IAI
MSCa routes the call to SSP according to called number prefix 600;
2)IDP
SSP analyzing called number 60013903000008 triggers business by DP3, and calling is reported to the SCP of MVPN group ownership according to calling number;
3)AC、Connect
SCP will carry out authentication to this calling.
SCP inserts the MVPN number 6000001 of caller in GeneralNumber when issuing the Connect operation, fill out 60013903000008 in OriginalCalledPartyNumber.
4)SRI
5)SRIack
6)IAI
SSP is when MSCb sends out IAI, and calling number is 600ABCD0001, and what called like this caller demonstration was seen is group's number+intercom number of caller.
Comprehensive the above, Mobile Virtual Private Network Service utilizes the resource of public telephone network to provide a private network in logic for group user, group user can be in this private network open service, realize innerly getting in touch easily by the phone cornet.Concrete advantage is described below:
(1) economical and practical
With renting special line by comparison,, therefore be quite economical because Virtual Private Network by the facility of public telephone network, does not need to invest in addition a private network physically.
(2) be convenient to management
Owing to use public network, therefore Virtual Private Network also becomes convenient unusually at management aspect.The user both need not worry because of technical factor interrupt communication, also needn't go to consider to drop into a fund again installs PBX and sends the special messenger to go training, maintenance, operation, on duty, all everything all given telecom operation department centralized management, the user will do only be when beginning, the virtual private web frame planned and opening centrex service after go to use it.
(3) adapting to enterprise changes fast
Continuous expansion along with scope of the enterprise, the change of enterprises even the resettlement of guard station may be very frequent, if adopt PBX to set up private network, enterprise will have to purchase continually PBX, ceaselessly PBX is moved on to another place from a place, cause great waste.And concerning VPN user, increase or delete a tissue or zone is a kind of operation in logic, unusual simply and not need the other investment of user.
(4) easy to use
Mobile Virtual Private Network provides the function of on-net call and off-net call for the user, as long as other users in the customer call private network dial 600+XXXX, wherein XXXX is the phone cornet in the Virtual Private Network.Different classes of user can also carry out off-net call with various restrictions maybe can not carry out off-net call.Call forwarding function can be transferred to the phone of calling out on the phone of own current location the user easily.The function that Virtual Private Network also provides voice mail, videoconference etc. to use for the user, the user also at any time call operator ask for help.
Further, when Service Switching Point is a plurality of settings, and wherein there is Service Switching Point to be connected with fixed-line telephone network (PSTN), can be in Service Control Point the control corresponding flow process, provide based on the centrex service on fixed-line telephone network (PSTN) and the mobile telephone network (PLMN).
Because the present invention adopts the intelligent network mature technology, other some IN services are as No. 300, pre-payment etc., are all known by the technical staff in intelligent field.Therefore, by above description, those skilled in the art is not difficult to realize the MVPN business on the net at intelligent movable.
Claims (16)
1, a kind of method that in mobile radio communication, realizes centrex service with Intellight network mode, this intelligent net system includes Service Control Point and Service Switching Point at least, wherein Service Switching Point is the tie point of intelligent net system and mobile network system, it is characterized in that:
It is the centrex service access code that special-purpose number is set in mobile network;
Centrex service detection trigger mechanism is set in described Service Switching Point, triggers by above-mentioned centrex service access code;
In described Service Control Point, be provided with and comprise centrex service logical process program and business datum in interior centrex service module;
When the mobile subscriber dials when calling out with the telephone number of this centrex service access code beginning, detect centrex service and it is reported to Service Control Point by Service Switching Point, carry out interactive contact with Service Control Point, allow the centrex service logic in the Service Control Point to influence call treatment.
2, method according to claim 1 is characterized in that: described calling is divided into Virtual Private Network on-net call and off-net call, and short codes is that on-net call is differentiation in group net to add behind the service access code.
3, method according to claim 2 is characterized in that: described off-net call user is classified, be divided into unrestricted calling, amount of money restriction call, number restriction call, forbid calling out.
4, method according to claim 2 is characterized in that: described on-net call or off-net call are provided with roaming, long-distance call license restrictions.
5, method according to claim 1 is characterized in that: specific number segment is set in described Virtual Private Network forms closed user group, open special conversation demand.
6, method according to claim 5 is characterized in that: described closed user group can be multiple setting, and promptly certain user can belong to a plurality of closed user groups simultaneously.
7, according to claim 2 or 4 described methods, it is characterized in that: the signaling process of described on-net call is
1) mobile switching centre at caller place (MSCa) is according to the virtual private of called number prefix
The network service access code will be called out route and forward the intelligent net system Service Switching Point to, to industry
Affair exchange point (SSP) sends initialization address information (IAI);
2) Service Switching Point analyzing called number is by centrex service Detection Point (DP)
Trigger business, and calling be reported to corresponding business control point (SCP) according to calling number,
Send startup DP (IDP) to Service Control Point;
3) Service Control Point sends application routing iinformation (SRI) to home location register (HLR)
Request;
4) home location register (HLR) is returned called roaming number and routing iinformation, in order to called
Charge;
5) Service Control Point is translated into continue and need true with cornet in the net in the called number
Real number, and this calling carried out authentication, send the application meter to Service Switching Point
Take (AC);
Service Control Point issues (Connect) behaviour that continues to Service Switching Point
Do, and in GeneralNumber, insert the Virtual Private Network number of caller,
Insert called Virtual Private Network number among the OriginalCalledPartyNumber;
6) Service Switching Point sends initial to the mobile switching centre (MSCb) at called place
Change address information (IAI), and be the Virtual Private Network number of caller calling party number ' s convert.
8, according to claim 2,3 or 4 described methods, it is characterized in that: the signaling process of described off-net call is
1) mobile switching centre at caller place (MSCa) is according to the virtual private of called number prefix
The network service access code will be called out route and forward the intelligent net system Service Switching Point to, to industry
Affair exchange point (SSP) sends initialization address information (IAI);
2) Service Switching Point analyzing called number is by centrex service Detection Point (DP)
Trigger business, and calling is reported to the industry of virtual private network group ownership according to calling number
Affair control point (SCP) sends startup DP (IDP) to Service Control Point;
3) Service Control Point carries out authentication to this calling, sends out to Service Switching Point
Send Apply Charging (AC);
Service Control Point issues (Connect) behaviour that continues to Service Switching Point
Do, and in GeneralNumber, insert the Virtual Private Network number of caller,
Insert called number among the OriginalCalledPartyNumber;
4) Service Switching Point sends application routing iinformation (SRI) to home location register (HLR)
Request;
5) home location register (HLR) is returned called roaming number and routing iinformation, in order to called
Charge;
6) Service Switching Point sends initial to the mobile switching centre (MSCb) at called place
Change address information (IAI), and be in the net of group's number+caller number with calling party number ' s convert
Sign indicating number.
9, method according to claim 1 is characterized in that: the service logic of described centrex service includes in the on-net call, off-net call, net at least/off-net call restriction, closed user group, calling transfer, calling go beyond, net in/off-net call obstruction, call operator, abbreviated dialing, voice mail, speech polling, videoconference, the system that is provided with prohibit and dial.
10, method according to claim 1, it is characterized in that: described Service Switching Point is to be provided with more than one, wherein there is Service Switching Point to be connected, forms Virtual Private Network based on fixed-line telephone network (PSTN) and mobile telephone network with fixed-line telephone network (PSTN).
11, a kind of mobile intelligent net system that realizes the described method of claim 1, at least comprise Service Switching Point, Service Control Point, SMAP (SMAP) and business management system (SMS), reach ip intelligent peripherals (IP), wherein Service Switching Point is the tie point of mobile network and intelligent net system, the one group of hardware module that has the signaling function of exchange for mobile switch with signaling function of exchange or common mobile switch; It is characterized in that:
Be provided with centrex service detection trigger mechanism in the described Service Switching Point, trigger by the centrex service access code;
Have in the described Service Control Point and comprise centrex service logical process program and business datum in interior centrex service module, when Service Switching Point detects centrex service and it is reported to Service Control Point, carry out interactive contact and influence call treatment by the centrex service logic with Service Switching Point.
12, system according to claim 11, it is characterized in that: described intelligent net system further includes service creation environment (SCE), generate centrex service by service creation environment (SCE), comprise centrex service logic and business datum, and it is tested, by business management system (SMS) this service logic and business datum are loaded in the Service Control Point, are used to handle the module of centrex service with generation.
13, system according to claim 11 is characterized in that: described mobile switch can be mobile switching centre (MSC) or MSC gateway (GMSC).
14, system according to claim 11 is characterized in that: described ip intelligent peripherals (IP) can be independent be provided with or be set to one with Service Switching Point.
15, system according to claim 11, it is characterized in that: described Service Control Point is connected with the Service Switching Point that is connected with fixed-line telephone network (PSTN), and this Service Switching Point is to have the switch of signaling function of exchange or one group of hardware module that general switch has the signaling function of exchange.
16, according to claim 11,12 or 15 described systems, it is characterized in that: the connection protocol between service creation environment (SCE) and the business management system (SMS) is TCP/IP, can be wide area network between SMAP (SMAP) and the business management system (SMS) or local area network (LAN) is connected, for wide area network or local area network (LAN) are connected, the connection protocol between Service Control Point and the Service Switching Point is the NO.7 signaling between business management system (SMS) and the Service Control Point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001228935A CN1146286C (en) | 2000-08-29 | 2000-08-29 | Method and system for implementing VPN service on mobile network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001228935A CN1146286C (en) | 2000-08-29 | 2000-08-29 | Method and system for implementing VPN service on mobile network |
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| CN1340985A true CN1340985A (en) | 2002-03-20 |
| CN1146286C CN1146286C (en) | 2004-04-14 |
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|---|---|---|---|
| CNB001228935A Expired - Lifetime CN1146286C (en) | 2000-08-29 | 2000-08-29 | Method and system for implementing VPN service on mobile network |
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| CN1309238C (en) * | 2004-06-16 | 2007-04-04 | 侯万春 | Method for providing virtual office equipment number service of group by virtual office equipment apparatus |
| CN100344176C (en) * | 2004-01-17 | 2007-10-17 | 华为技术有限公司 | Method for acknowledging user's current intelligent business by belonging position register |
| CN100450064C (en) * | 2002-04-25 | 2009-01-07 | 日本电气株式会社 | Mobile communication network system and mobile communication method |
| CN100459724C (en) * | 2003-12-10 | 2009-02-04 | 华为技术有限公司 | Implementation method of services of virtual small exchanger for combining mobile network and fixed network |
| CN100466754C (en) * | 2003-07-01 | 2009-03-04 | 华为技术有限公司 | Implementing method for joining VPN service for user of user switch |
| CN101674496A (en) * | 2009-10-21 | 2010-03-17 | 中兴通讯股份有限公司 | Integrated virtual private network system and method for triggering integrated virtual private network service |
| CN1893483B (en) * | 2005-07-06 | 2010-05-05 | 中兴通讯股份有限公司 | Method for providing virtual telephone exchange service by intelligent network |
| CN101562759B (en) * | 2009-05-26 | 2011-07-20 | 中兴通讯股份有限公司 | Realization method of intelligent service of mobile virtual special network group and device thereof |
| CN101534492B (en) * | 2009-04-22 | 2011-08-31 | 中国电信股份有限公司 | System for synthetizing virtual private network and method for realizing virtual private network |
| CN102404696A (en) * | 2010-09-14 | 2012-04-04 | 中国移动通信集团江苏有限公司 | Method and device for setting ring-back tone for caller identification |
| CN110611738A (en) * | 2019-08-01 | 2019-12-24 | 冯磊 | Public telephone system for schools in schools, implementation method, electronic equipment and medium thereof |
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| US8000277B2 (en) | 2002-04-25 | 2011-08-16 | Nec Corporation | Mobile communication network system and mobile communication method |
| CN100450064C (en) * | 2002-04-25 | 2009-01-07 | 日本电气株式会社 | Mobile communication network system and mobile communication method |
| CN100466754C (en) * | 2003-07-01 | 2009-03-04 | 华为技术有限公司 | Implementing method for joining VPN service for user of user switch |
| CN100459724C (en) * | 2003-12-10 | 2009-02-04 | 华为技术有限公司 | Implementation method of services of virtual small exchanger for combining mobile network and fixed network |
| CN100344176C (en) * | 2004-01-17 | 2007-10-17 | 华为技术有限公司 | Method for acknowledging user's current intelligent business by belonging position register |
| CN1309238C (en) * | 2004-06-16 | 2007-04-04 | 侯万春 | Method for providing virtual office equipment number service of group by virtual office equipment apparatus |
| CN1893483B (en) * | 2005-07-06 | 2010-05-05 | 中兴通讯股份有限公司 | Method for providing virtual telephone exchange service by intelligent network |
| CN101534492B (en) * | 2009-04-22 | 2011-08-31 | 中国电信股份有限公司 | System for synthetizing virtual private network and method for realizing virtual private network |
| CN101562759B (en) * | 2009-05-26 | 2011-07-20 | 中兴通讯股份有限公司 | Realization method of intelligent service of mobile virtual special network group and device thereof |
| CN101674496A (en) * | 2009-10-21 | 2010-03-17 | 中兴通讯股份有限公司 | Integrated virtual private network system and method for triggering integrated virtual private network service |
| WO2010145366A1 (en) * | 2009-10-21 | 2010-12-23 | 中兴通讯股份有限公司 | Synthesis virtual private network system and method for triggering synthesis virtual private network service |
| CN101674496B (en) * | 2009-10-21 | 2015-06-03 | 中兴通讯股份有限公司 | Integrated virtual private network system and method for triggering integrated virtual private network service |
| CN102404696A (en) * | 2010-09-14 | 2012-04-04 | 中国移动通信集团江苏有限公司 | Method and device for setting ring-back tone for caller identification |
| CN102404696B (en) * | 2010-09-14 | 2014-04-09 | 中国移动通信集团江苏有限公司 | Method and device for setting ring-back tone for caller identification |
| CN110611738A (en) * | 2019-08-01 | 2019-12-24 | 冯磊 | Public telephone system for schools in schools, implementation method, electronic equipment and medium thereof |
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| CN1146286C (en) | 2004-04-14 |
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