CN100551094C - Realize the method for group switchboard business - Google Patents
Realize the method for group switchboard business Download PDFInfo
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Abstract
The present invention discloses a kind of method that realizes group switchboard business, is applied in the mobile intelligent net, and this method comprises: the mobile switchboard number of a, calling user dials group, and mobile switching centre triggers the Business-to-Business control point; B, service control point are carried out wireless group switchboard business flow process, obtain the extension number in the group that the calling subscriber desires to dial, and return the message that indication mobile switching centre is connected to corresponding extension subscriber in this group to mobile switching centre; C, mobile switching centre set up the voice pathway of calling subscriber's corresponding extension subscriber in the group according to the extension number in the described message.The present invention realizes that business does not need backguy, and installation speed is fast, and phone is in one's hands, and phone can be opened, and the group switchboard business user can (in same area) arbitrarily migration in certain scope.
Description
Technical field
The present invention relates to mobile radio communication value-added service field, in particular, the present invention relates to a kind of method that in mobile intelligent net, realizes group switchboard business.
Background technology
Usually, group switchboard business, also be the Centrex business, be that certain customers' (comprising the isdn user) with local exchange are defined as a basic customer group, the user of this customer group not only has domestic consumer and isdn user's all functions, and all functions that also have private branch exchange, some specific functions that also have common local telephone network and Private Branch Exchange PBX simultaneously and do not had.At present, in public's switched telecommunication network (PSTN, public switched telephone network) net, extensively carried out group switchboard business, adopted this business to safeguard and the equipment purchasing cost for the end user saves.
When realizing group switchboard business at present, telecommunications company moves telephone wire to the office at the enterprise group place of application group switchboard business, there are what telephone subscribers just need draw what telephone wires, the user of each application group switchboard business externally can have a common telephone number, and the user outside the group can be directly according to this number call group internal user; At business group internal, each group internal user is assigned an extension, can dial extension mutually between the group internal user.All users in also can enterprise group externally only announce a general number, when the user outside the enterprise group dials in the group user, dial group main number earlier, dial group internal user's corresponding extension again according to voice suggestion, in this case, during user outside the group switchboard business customer call enterprise group, externally numbers displayed can be a general number.External user is dialed the function that general number not only can realize being transferred to automatically the group internal extension subscriber, can also realize services such as call forwarding and number inquiry by manual operator simultaneously.
But existing group switchboard business realizes that by fixed-line telephone network the problem of existence is:
User's difficulty of installing need be drawn the office block of telephone wire to enterprise group; When business group internal personnel seat changes, be difficult to keep original extension; When particularly changing, just original general number and each extension have more been cannot say for sure to stay in the office of enterprise group.
Summary of the invention
The technical problem that the present invention solves provides a kind of method that realizes group switchboard business at intelligent movable on the net, not only can realize the basic function of common group switchboard business, and the saving cost, the user can (in same area) arbitrarily migration in certain scope.
For addressing the above problem, the method for realization group switchboard business of the present invention comprises:
The mobile switchboard number of a, calling user dials group, mobile switching centre triggers the Business-to-Business control point;
B, service control point control mobile switching centre sets up the voice pathway of calling subscriber to voice resource equipment, service control point indication voice resource apparatus to calling subscriber's playing welcome announcement, inquire about, transfer to the voice suggestion of manual service platform or other services; When the calling subscriber selected the manual service platform, voice resource equipment was routed to the plug-in manual position of voice resource equipment with voice pathway, and the calling subscriber is by obtaining the extension number that desire is called out alternately with the manual operator that is sitting on the described manual position; Extension number is returned to service control point; Service control point is converted to this extension number actual mobile subscriber number and returns to mobile switching centre by message;
C, mobile switching centre set up the voice pathway of calling subscriber's corresponding extension subscriber in the group according to the mobile subscriber number of the reality in the described message.
Preferably, described voice resource equipment is the ip intelligent peripherals that is independent of mobile switching centre, and described service control point indication voice resource apparatus also comprises to calling subscriber's playing welcome announcement, before inquiring about, transfer to the voice suggestion of manual service platform or other services:
The follow-up business flow process can be continued in ip intelligent peripherals indicating services control point;
Described service control point also comprises after this extension number is converted to actual mobile subscriber number and returns to mobile switching centre:
Mobile switching centre's dismounting is connected with ip intelligent peripherals.
In addition, the voice resource equipment that also carries of described voice resource equipment for mobile switching centre.
Wherein, the calling subscriber is user outside the group, and step a comprises:
The user dials the mobile switchboard number of group outside the group;
Mobile switching centre sends a request message to attaching position register, to obtain the mobile switchboard CAMEL-Subscription-Information of this group;
Attaching position register returns the mobile switchboard CAMEL-Subscription-Information of this group to mobile switching centre;
Mobile switching centre triggers the Business-to-Business control point according to CAMEL-Subscription-Information, carries out the group switchboard business flow process.
Wherein, the calling subscriber is the group internal user, and step a comprises:
The group internal user dials the mobile switchboard number of group;
Mobile switching centre sends a request message to attaching position register, to obtain the mobile switchboard CAMEL-Subscription-Information of this group;
Attaching position register returns the mobile switchboard CAMEL-Subscription-Information of this group to mobile switching centre;
Mobile switching centre triggers the Business-to-Business control point according to CAMEL-Subscription-Information, carries out the group switchboard business flow process.
Wherein, described mobile intelligent net can be the global mobile communication intelligent network.
Wherein, described mobile intelligent net can be the CDMA mobile telecommunication intelligent network.
Compared with prior art, the present invention has following beneficial effect:
At first, the present invention realizes group switchboard business in mobile intelligent net, the group switchboard business that provides with fixed-line telephone network compares, the basic function that not only has common group switchboard business, and the realization business do not need backguy, and installation speed is fast, and phone is in one's hands, phone can be opened, and the group switchboard business user can (in same area) arbitrarily migration in certain scope.
Further, the present invention provides condition for mobile operator opens group switchboard business.Enterprise group can customize the distinctive salutatory of enterprise by opening the group switchboard business of wireless, plays unified brand names, promotes the effect of corporate image.
Description of drawings
Fig. 1 is a kind of networking schematic diagram that the present invention realizes group switchboard business;
Fig. 2 is provided with the specific embodiment flow chart that the present invention under the situation of ip intelligent peripherals AIP realizes group switchboard business in the GSM net;
Fig. 3 is not provided with the specific embodiment flow chart that the present invention under the situation of ip intelligent peripherals AIP realizes group switchboard business separately in the GSM net;
Fig. 4 is provided with the specific embodiment flow chart that the present invention under the situation of ip intelligent peripherals AIP realizes group switchboard business in the CDMA net;
Fig. 5 is not provided with the specific embodiment flow chart that the present invention under the situation of ip intelligent peripherals AIP realizes group switchboard business separately in the CDMA net.
Embodiment
The present invention realizes group switchboard business in mobile intelligent net, mobile intelligent net be a kind of in mobile network fast, effectively, economical, provide the network architecture of new business easily, the professional ability of mobile intelligent net is closely-related with its application protocol to a great extent.As far back as 1997, european telecommunications standards institute ETSI just released the CAMEL standard in order to solve GSM mobile radio communication and intelligent network interconnection problems.The full name of CAMEL is that (Customized Applications for Mobile Network Enhanced Logic) used in the customization of mobile network's enhanced logic, and CAMEL1, CAMEL2, CAMEL3 CAMEL4 draft proplsal has till now been passed through in the development of CAMEL standard.
Mobile intelligent net increases some network function unit on existing mobile network, as: service control point (SCP, Service Control Point), Service Switching Point (SSP, Service Switching Point), service management point (SMP, Service Management Point), service management inserts part (SMAP, Service Management Agent Point), service creation environment (SCE, Service CreationEnvironment), service data point (SDP, Service Data Point) etc., service control function is separated from traditional function of exchange, make network that new business can be provided flexibly and easily, to adapt to user's demand.It is existing mobile network and the combining of intelligent network.
The purpose of mobile intelligent net is to make the telecommunication service operator that the user can be provided required all kinds of new business cost-effectively, makes the user to network stronger controlled function be arranged, and can obtain required service easily and flexibly.
With reference to figure 1, this figure is a kind of mobile intelligent net networking schematic diagram that the present invention realizes group switchboard business.
As shown, (G) MSC, VMSC, attaching position register HLR, BSS, SCP, SMP and to strengthen ip intelligent peripherals AIP etc. all be network entity in the mobile intelligent net.
Moving exchanging center MSC is mainly finished Service Switching Function and CCF.(G) MSC here continues speech channel to AIP when the needs interactive voice, and VMSC mainly preserves called subscriber's current information as called subscriber's visited MSC, is accomplished to continuing between the called subscriber in calling procedure.
Attaching position register HLR mainly is the essential information that is used to preserve the mobile subscriber, and when location of mobile users upgraded (mobile subscriber's start or position change), HLR sent to MSC/VLR (i.e. the VMSC here) with these information.
Strengthening ip intelligent peripherals AIP is an equipment that wireless group switchboard business voice resource is provided and operator's manual position is provided, and under the situation that does not need operator's manual position, can not need AIP, and the playback resource is directly provided by (G) MSC.
The present invention realizes that the method for group switchboard business can realize in global mobile communication (GSM), also can realize in code division multiple access (CDMA) mobile intelligent net, describes respectively below.
Illustrate that at first the present invention realizes the operation flow of group switchboard business in the GSM intelligent network.
With reference to figure 2, this figure is provided with the specific embodiment call flow diagram that the present invention under the situation of ip intelligent peripherals AIP realizes group switchboard business in the GSM net.
The hypothesis calling subscriber is user A outside the enterprise group in the present embodiment, the group main number of group switchboard business is the number of GSM net, and contract into intelligent subscriber before, user A calls out the user B (supposing that here the party B-subscriber also is GSM user, can certainly be that CDMA user waits other mobile subscribers) that is transferred to business group internal the most at last by dialing group main number.
Concrete call flow is as follows:
1) calling subscriber A dials the mobile switchboard number of having applied for wireless group switchboard business, starts the called flow of group switchboard business in the mobile switching centre that professional triggering ability is arranged.
2) MSC of mobile switching centre (G) sends route request information SRI to obtain the CAMEL-Subscription-Information of group mobile telephone exchange number to attaching position register, attaching position register returns route requests response message SRI_ack, comprises the Terminating CAMEL Subscription Information of group mobile telephone exchange number in this message.
3) mobile switching centre trigger group switchboard business according to the Terminating CAMEL Subscription Information of group mobile telephone exchange number called flow to SCP, the message of transmission is Initial Detection Point message InitialDP.
4) SCP indication mobile switching centre is established to the connection of AIP, and the message of transmission is for setting up interim connection message ETC.
5) mobile switching centre is established to the connection of AIP, and AIP returns Assistant Request Instruction message ARI to SCP.
6) after SCP receives the ARI message of AIP, issue execution user interactive script (UIScriptRun) instruction to AIP, indication AIP carries out the corresponding script flow process.
7) after AIP played enterprise's salutatory, AIP and user carried out interactive voice, and the prompting user imports needs the extension number or the selection of switching to accept other service.
8) calling subscriber directly dials extension or obtains extension number by manual operator, by user interactive script incident (UIScriptEvent) instruction extension number is returned to SCP.
9) SCP issues to mobile switching centre and removes forward connection message DFC, and the physical link between mobile switching centre and the AIP is removed by indication mobile switching centre.
10) SCP obtains the true mobile subscriber number of extension subscriber according to extension, SCP issues connection message CONNECT to mobile switching centre, the true mobile subscriber number that comprises extension set in the message, mobile switching centre arrives called subscriber B (extension subscriber of group switchboard business) with call proceeding with indication.
11) mobile switching centre remove with AIP between be connected, (party B-subscriber's called flow is identical with general GSM user's called flow, no longer is described in detail here to called subscriber B with call proceeding.
12) called party answer, calling and called the user be in the conversation.
With reference to figure 3, this figure is not provided with the specific embodiment flow chart that the present invention under the situation of ip intelligent peripherals AIP realizes group switchboard business separately in the GSM net.
The hypothesis calling subscriber is user A outside the enterprise group in the present embodiment, the group mobile telephone exchange number of application group switchboard business is the number of GSM net, and contract into intelligent subscriber before, user A calls out the user B (supposing that here the party B-subscriber also is GSM user, can certainly be that CDMA user waits other mobile subscribers) that is transferred to business group internal the most at last by dialing the group mobile telephone exchange number.Concrete operation flow is as follows:
1) calling subscriber A dials the group mobile telephone exchange number of having applied for group switchboard business, starts the called flow of group switchboard business in the mobile switching centre that professional triggering ability is arranged.
2) MSC of mobile switching centre (G) sends route request information SRI to obtain the CAMEL-Subscription-Information of group mobile telephone exchange number to attaching position register, attaching position register returns route requests response message SRI_ack, comprises the Terminating CAMEL Subscription Information of group mobile telephone exchange number in the message.
3) mobile switching centre trigger group switchboard business according to the Terminating CAMEL Subscription Information of group mobile telephone exchange number called flow to SCP, the message of transmission is Initial Detection Point message InitialDP.
4) SCP indication mobile switching centre is established to the local voice resource of this mobile switching centre, and the message of transmission is for being connected to message related to resources CTR.
5) SCP issues PA message to mobile switching centre, indication mobile switching centre playing welcome announcement.
6) after mobile switching centre plays enterprise's salutatory, return SRR message to SCP.
7) SCP issues PC message to mobile switching centre, and indication mobile switching centre plays voice suggestion, as " request extension number, directory enquiry or other service request 0 ".
8) user directly dials extension or selects 0 to require to provide manual service, and mobile switching centre returns to SCP by PC Result message with the number that the user imports.
9) number of the input of SCP analysis user is 0 (inquiry or other service) if the user Enters Number, and then arrives step 12; If user's input is extension number, then SCP obtains the true mobile subscriber number of extension set according to extension, SCP issues connection message CONNECT to mobile switching centre, the true mobile subscriber number that comprises extension subscriber in the message, mobile switching centre arrives called subscriber B (extension subscriber of group switchboard) with call proceeding with indication.
10) mobile switching centre arrives called subscriber B (party B-subscriber's called flow is identical with general GSM user's called flow, no longer is described in detail) here with call proceeding.
11) called party answer, calling and called the user be in the conversation.
12) SCP issues connection message CONNECT to mobile switching centre, comprises the number of manual position correspondence in the message, and mobile switching centre arrives manual operator with call proceeding with indication.
13) mobile switching centre arrives manual operator with call proceeding.
14) manual operator is replied, and services such as number inquiry are provided.
The following describes the present invention realizes group switchboard business in the CDMA intelligent network operation flow.
With reference to figure 4, this figure is provided with the specific embodiment call flow diagram that the present invention under the situation of ip intelligent peripherals AIP realizes group switchboard business in the CDMA net.
Same hypothesis calling subscriber is user A outside the enterprise group in the present embodiment, the group mobile telephone exchange number is the number of CDMA net, contract into intelligent subscriber before, user A calls out the user B (supposing that here the party B-subscriber also is CDMA user, can certainly be that GSM user waits other mobile subscribers) that is transferred in the enterprise group the most at last by dialing the group mobile telephone exchange number.
Concrete call flow is as follows:
1) calling subscriber A dials the group mobile telephone exchange number of application group switchboard business, starts the called flow of group switchboard in the mobile switching centre that professional triggering ability is arranged.
2) MSC of mobile switching centre (G) sends location request message LOCREQ to obtain the CAMEL-Subscription-Information of group mobile telephone exchange number to attaching position register, attaching position register home position request response locreq comprises the Terminating CAMEL Subscription Information of group mobile telephone exchange number in the message.
3) mobile switching centre trigger group switchboard business according to the Terminating CAMEL Subscription Information of group mobile telephone exchange number called flow to SCP, the message of transmission is analytical information message ANLYZD.
4) SCP sends to AIP and catches message related to resources SEIZERES, and AIP returns and catches resource response message seizeres, indexed resource application success.
5) SCP indication mobile switching centre is established to the connection of AIP, and the message of transmission is connection resource message CONNRES.
6) mobile switching centre is established to the connection of AIP, and AIP is to SCP return instruction request INSTREQ, and indication SCP can carry out follow-up operation flow.
7) SCP issues to AIP and carries out user interactive script (UIScriptRun) instruction, and indication AIP carries out the corresponding script flow process.
8) after AIP played enterprise's salutatory, AIP and user carried out interactive voice, and the prompting user imports needs the extension number or the selection of switching to accept other service.
9) user directly dials extension or obtains extension number by manual operator, by user interactive script incident (UIScriptEvent) instruction extension number is returned to SCP.
10) SCP obtains the true mobile subscriber number of extension subscriber according to extension number, SCP issues analytical information response message anlyzd to mobile switching centre, the true mobile subscriber number that comprises called subscriber B in the message, indication mobile switching centre to called subscriber B (extension subscriber in the group), indicates the physical link between dismounting mobile switching centre of mobile switching centre and the AIP with call proceeding simultaneously;
11) SCP sends instruction request response message instreq to AIP.
12) mobile switching centre remove with AIP between be connected, with call proceeding to called subscriber B (party B-subscriber's called flow is identical with general CDMA user's called flow, no longer is described in detail here).
13) called party answer, calling and called the user be in the conversation.
With reference to figure 5, this figure is not provided with the specific embodiment flow chart that the present invention under the situation of ip intelligent peripherals AIP realizes group switchboard business separately in the CDMA net.
Same hypothesis calling subscriber is user A outside the enterprise group in the present embodiment, the group mobile telephone exchange number is the number of CDMA net, contract into intelligent subscriber before, user A calls out the user B (supposing that here the party B-subscriber also is CDMA user, can certainly be that GSM user waits other mobile subscribers) that is transferred in the enterprise group the most at last by dialing group main number.
Concrete call flow is as follows:
1) calling subscriber A dials the group mobile telephone exchange number of the wireless group switchboard business of application, starts the called flow of group switchboard in the mobile switching centre that professional triggering ability is arranged.
2) MSC of mobile switching centre (G) sends location request message LOCREQ to obtain the CAMEL-Subscription-Information of group mobile telephone exchange number to attaching position register, attaching position register home position request response locreq comprises the Terminating CAMEL Subscription Information of group mobile telephone exchange number in the message.
3) mobile switching centre trigger group switchboard business according to the Terminating CAMEL Subscription Information of group mobile telephone exchange number called flow to SCP, the message of transmission is analytical information message ANLYZD.
4) SCP sends to the mobile switching centre that the voice resource ability is arranged and catches message related to resources SEIZERES, and (G) MSC returns and catches resource response message seizeres, indexed resource application success.
5) SCP indication mobile switching centre sets up voice resource, and the message of transmission is connection resource message CONNRES.
6) mobile switching centre is established to the connection of voice resource.Mobile switching centre is to SCP return instruction request INSTREQ, and indication SCP can carry out follow-up operation flow.
7) SCP issues specialized resource function indication (SRFDIR) instruction to AIP, and indication mobile switching centre plays corresponding voice, is enterprise's salutatory here.
8) after mobile switching centre plays enterprise's salutatory, return the playback result to SCP, message is the response message (srfdir) of specialized resource function indication.
9) SCP issues specialized resource function indication (SRFDIR) instruction to AIP, and indication mobile switching centre plays corresponding voice, is that prompting is imported extension number or selected other service here.
10) mobile switching centre's prompting calling subscriber imports needs the extension number or the selection of switching to accept other service.
11) user directly dials extension number or obtains extension number by manual operator, and the response message (srfdir) of specialized resource function indication returns to SCP with extension number.
12) SCP obtains the true mobile subscriber number of extension subscriber according to extension, SCP issues analytical information response message anlyzd to mobile switching centre, the true mobile subscriber number that comprises called subscriber B in the message, indication mobile switching centre to called subscriber B (extension subscriber of group switchboard business), indicates the physical link between dismounting mobile switching centre of mobile switching centre and the voice resource with call proceeding simultaneously.
13) SCP sends instruction request response message instreq to mobile switching centre.
14) mobile switching centre remove with voice resource between be connected, with call proceeding to called subscriber B (party B-subscriber's called flow is identical with general CDMA user's called flow, no longer is described in detail here).
15) called party answer, calling and called the user be in the conversation.
Need to prove, also can transfer each other that the user dials similarly outside its specific implementation and the group, is simply described as follows by exchange for the group switchboard business internal user:
1) the group internal user dials the mobile switchboard number of group;
2) mobile switching centre is to the attaching position register request message, to obtain the mobile switchboard CAMEL-Subscription-Information of this group;
3) attaching position register returns the mobile switchboard CAMEL-Subscription-Information of this group to mobile switching centre;
4) mobile switching centre triggers the Business-to-Business control point according to CAMEL-Subscription-Information;
5) service control point is carried out wireless group switchboard business flow process, obtains the called extension number in the group that the caller extension subscriber desires to dial, and returns the message that indication mobile switching centre is connected to called extension subscriber in this group to mobile switching centre;
6) mobile switching centre sets up the voice pathway of caller extension subscriber corresponding called extension subscriber in the group according to the called extension number in the described message.
To sum up, the present invention realizes group switchboard business in mobile intelligent net, does not need backguy, and installation speed is fast, and phone is in one's hands, and phone can be opened.Group user can (in same area) arbitrarily migration in certain scope.
The above only is a preferred implementation of the present invention, does not constitute the qualification to protection range of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (7)
1, a kind of method that realizes group switchboard business is applied in the mobile intelligent net, and described mobile intelligent net includes mobile switching centre and service control point, it is characterized in that, comprising:
The mobile switchboard number of a, calling user dials group, mobile switching centre triggers the Business-to-Business control point;
B, service control point control mobile switching centre sets up the voice pathway of calling subscriber to voice resource equipment, service control point indication voice resource apparatus to calling subscriber's playing welcome announcement, inquire about, transfer to the voice suggestion of manual service platform or other services; When the calling subscriber selected the manual service platform, voice resource equipment was routed to the plug-in manual position of voice resource equipment with voice pathway, and the calling subscriber is by obtaining the extension number that desire is called out alternately with the manual operator that is sitting on the described manual position; Extension number is returned to service control point; Service control point is converted to this extension number actual mobile subscriber number and returns to mobile switching centre by message;
C, mobile switching centre set up the voice pathway of calling subscriber's corresponding extension subscriber in the group according to the mobile subscriber number of the reality in the described message.
2, the method for group switchboard business according to claim 1, it is characterized in that, described voice resource equipment is the ip intelligent peripherals that is independent of mobile switching centre, and described service control point indication voice resource apparatus also comprises to calling subscriber's playing welcome announcement, before inquiring about, transfer to the voice suggestion of manual service platform or other services:
The follow-up business flow process is continued at ip intelligent peripherals indicating services control point;
Described service control point also comprises after this extension number is converted to actual mobile subscriber number and returns to mobile switching centre:
Mobile switching centre's dismounting is connected with ip intelligent peripherals.
3, the method for realization group switchboard business according to claim 1 is characterized in that, described voice resource equipment is the voice resource equipment that mobile switching centre carries.
4, the method for realization group switchboard business according to claim 1 is characterized in that, the calling subscriber is user outside the group, and step a comprises:
The user dials the mobile switchboard number of group outside the group;
Mobile switching centre sends a request message to attaching position register, to obtain the mobile switchboard CAMEL-Subscription-Information of this group;
Attaching position register returns the mobile switchboard CAMEL-Subscription-Information of this group to mobile switching centre;
Mobile switching centre triggers the Business-to-Business control point according to CAMEL-Subscription-Information, carries out the group switchboard business flow process.
5, the method for realization group switchboard business according to claim 1 is characterized in that, the calling subscriber is the group internal user, and step a comprises:
The group internal user dials the mobile switchboard number of group;
Mobile switching centre sends a request message to attaching position register, to obtain the mobile switchboard CAMEL-Subscription-Information of this group;
Attaching position register returns the mobile switchboard CAMEL-Subscription-Information of this group to mobile switching centre;
Mobile switching centre triggers the Business-to-Business control point according to CAMEL-Subscription-Information, carries out the group switchboard business flow process.
According to the method for each described realization group switchboard business of claim 1-5, it is characterized in that 6, described mobile intelligent net is the global mobile communication intelligent network.
According to the method for each described realization group switchboard business of claim 1-5, it is characterized in that 7, described mobile intelligent net is the CDMA mobile telecommunication intelligent network.
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| CNB2004100741414A CN100551094C (en) | 2004-08-31 | 2004-08-31 | Realize the method for group switchboard business |
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| CN101848220A (en) * | 2010-05-12 | 2010-09-29 | 中兴通讯股份有限公司 | Method for realizing one-time dialing of switchboard and extension and audio conference service system |
| CN102547696A (en) * | 2010-12-15 | 2012-07-04 | 上海贝尔股份有限公司 | Method and device for communication for femtocell base station |
| CN102137198B (en) * | 2011-03-22 | 2015-01-21 | 华为技术有限公司 | Method for realizing private branch exchange service and gateway equipment |
| CN105007365B (en) * | 2015-05-27 | 2018-03-09 | 广东欧珀移动通信有限公司 | A kind of extension number dialing method and device |
| CN109088846A (en) * | 2017-06-14 | 2018-12-25 | 展讯通信（上海）有限公司 | Data transmission set and transmission method, electronic equipment |
| CN111787162B (en) * | 2020-02-28 | 2021-09-21 | 中国移动通信集团广东有限公司 | Calling method, device, system and storage medium applied to call center service |
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2004
- 2004-08-31 CN CNB2004100741414A patent/CN100551094C/en not_active Expired - Fee Related
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