CN101378543A - Method for extending call transfer function of communication network - Google Patents
Method for extending call transfer function of communication network Download PDFInfo
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- CN101378543A CN101378543A CNA2007101480260A CN200710148026A CN101378543A CN 101378543 A CN101378543 A CN 101378543A CN A2007101480260 A CNA2007101480260 A CN A2007101480260A CN 200710148026 A CN200710148026 A CN 200710148026A CN 101378543 A CN101378543 A CN 101378543A
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Abstract
The invention discloses a call transfer method in communication networks. The call transfer method comprises the steps: an HLR (home location register) receives an SRI (send routing information) message from a GMSC (gateway mobile switching center) and extracts a calling number from the SRI message; according to the calling number, a database is searched; and whether an input number is set for call transfer is determined, if so, the input number is transferred to a corresponding transfer-to-number, and if not, the call transfer is refused. A user can customize an individualized call-transfer design, choose to answer a specified incoming number by the phone of the calling number rather than transfer the incoming number, and transfer different incoming numbers to different answering numbers.
Description
Technical field
The present invention relates to the call forwarding function in the communication network, can be used for any communication network, comprise fixed-line telephone network, mobile radio communication, IP network (the Internet) etc.
Background technology
Calling transfer is exactly the selection of mobile communications network according to the client,, mobile phone weak at mobile phone shutdown, signal leaves under the situation that service area, the medium user of communication process can not receive calls, the phone of calling in is transferred on preassigned one " number ", and this " number " can be landline telephone, beeper, voice mail and mobile phone etc.
Prior art is transferred on the specific number by the mode of setting for the phone of all incoming calls, shifts but can not distinguish the incoming call incoming call, can not satisfy telephone subscriber's individual demand.
Summary of the invention
The purpose of this invention is to provide a kind of call transferring method.
For achieving the above object, call transfer method in a kind of communication network comprises step:
HLR receives SRI message and extract calling number from SRI message from GMSC;
Search in database according to calling number;
Judge to Enter Number whether be set at calling transfer, if, then will Enter Number and transfer to the corresponding number that is transferred to, if not, then refuse calling transfer.
User of the present invention can be personalized customization calling transfer scheme, can select specific caller ID is not shifted and answered by this machine, can transfer to different numbers to different incoming calls.
Description of drawings
Fig. 1 is basic GSM network reduction block diagram;
Fig. 2 represents the existing call route selecting technology of gsm system;
Fig. 3 represents terminal system handles flow chart when network sends registration sequence and cancellation sequence;
Fig. 4 is the schematic diagram that the user registers HLR Relational database content behind the personalized call transfer service;
Fig. 5 represents that HLR handles the flow chart of calling transfer judgement.
Embodiment
The block diagram of accompanying drawing 1 expression gsm mobile communication system.101 portable terminal MT are connected to 102 base station BTS by air interface, and 102 BTS are connected to 103 base station controller BSC by wired mode again.105 mobile services switching centre MSC control 103 base station controller BSC, and be connected to other mobile services switching centre and 107 GMSC (Gateway Mobile Switching Center), pass through 107GMSC, the GSM network is connected to other network, as PSTN (public service telephone network), other mobile communications network PLMN or IP network.User profile is permanently stored among the 104 attaching position register HLR, and is kept among the 106 accessed location register VLR temporarily, and 108 Operation and Maintenance center O MC manage whole GSM network.
The message flow diagram of call route selecting in the accompanying drawing 2 expression GSM networks.Hereinafter calling transfer involved in the present invention is described with reference to this figure.In the example of Fig. 2, receive the calling that the PSTN or the GSM network user initiate by message 200 IAM (initial address message) Gateway Mobile Switching Center GMSC.Called subscriber's telephone number transmits as the annex of IAM message.GMSC sends the attaching position register HLR of the request of routing information to the called subscriber in 201 SRI (transmission routing information) message.The information of the calling transfer setting of relevant this called number is included in the user profile of HLR and/or VLR, and the calling transfer that HLR sets according to the user is provided with decision and carries out calling transfer by HLR or VLR.HLR can carry out unconditional call forwarding, and busy hour call is shifted and can only be carried out by the VLR that is responsible for this user.HLR or VLR can carry out all calling transfer of having ready conditions of calling transfer when knowing calling transfer and no response in the time of can not arriving.
When HLR started calling transfer, HLR sent in 204 SRI ACK (sending routing information confirms) message and is transferred to number (forwarded-to number) to GMSC.Receive be used for number for call forwarding after, GMSC checks the information of the relevant calling transfer of 200 IAM message sinks, if satisfy condition, then with the number of this calling transfer to the appointment transfer, in comprising 205 IAM message of relevant call-forwarding information with this calling transfer to new number, for example be transferred to the VMSC of another switching center.In the calling transfer that HLR starts, do not need the message 202 and 203 among Fig. 2.
When VLR started calling transfer, HLR sent 202 PRN (the Route Selection number is provided) message and gives the current accessed location register VLR of user.In 203 PRN ACK message, VLR provides mobile station roaming number MSRN to HLR, and HLR sends this MSRN to GMSC in 204 SRI ACK (sending routing information confirms) message.According to this mobile station roaming number, call routing is to visited MSC VMSC for this reason for GMSC, and wherein VLR provides diverting call needed number.Whether VMSC allows calling transfer according to the information check of relevant calling transfer.If the permission calling transfer then is sent to assigned number with this calling with the information of relevant calling transfer.
When the information of relevant calling transfer sends HLR to mobile station roaming number, also can only carry out the inspection of call-forwarding information by HLR.In this case, carry out in a similar fashion at VMSC with in HLR usually and check, determine to allow or the refusal calling transfer.
The limitation of existing call transfer techniques is, can only set one and be transferred to number (forwarded-to number), and the called subscriber can't distinguish caller ID and phone is transferred to different numbers or is answered by this machine.
The objective of the invention is to allow the calling transfer scheme of customization personalization, as except existing calling transfer setting, the user can select the number that makes an exception, and can select to be answered by this machine for exception number user, or be answered by other specific number.
The present invention can merge use with existing call transferring method and also can independently use.Flow process involved in the present invention comprises personalized call transfer service registration process and comes the electrotransfer judging process.
Below describe the preferred embodiments of the present invention with reference to the accompanying drawings.
The present invention can be applied to any communication network.To mainly utilize digital mobile communication system GSM to describe the present invention in more detail below as example.The simplified structure of the GSM network of describing before Fig. 1 represents.Fig. 2 is existing calling transfer message flow.Fig. 1 and Fig. 2 are applicable to personalized call transfer service involved in the present invention.
Personalized call transfer service registration has several modes, comprises by the online registration of note, website or service hotline, or handles by the business hall, or be similar to existing method and send the registration sequence by terminal to network.Fig. 3 represents terminal system handles flow chart when network sends registration sequence and cancellation sequence.
In accompanying drawing 3, user terminal MT sends sequence 301 " * 81+ (being transferred to number DN) # incoming call IN# " by Access Network BTS and BSC to moving exchanging center MSC, and expression is transferred to " being transferred to number DN " to " incoming call IN ".If " be transferred to number DN " is a preassigned number (as 1234567), then represents " incoming call IN " do not carried out calling transfer.After moving exchanging center MSC is received user's log-on message, send message 302RegisterSS, comprise the type of service of user's registration in the message to HLR, and " incoming call IN " and " being transferred to number DN ".MSC sends the business of 303 ActivateSS message activation users registration to HLR then.After HLR received RegisterSS and ActivateSS message, according to message content new database more, the database schematic diagram as shown in Figure 4.
Accompanying drawing 4 is schematic diagrames that the user registers HLR Relational database content behind the personalized call transfer service.In the accompanying drawing 4, it can value be 0 or 1 that personalized call shifts sign, gets 0 expression the personalized call transfer is not set, and gets 1 and represents that the user is provided with personalized call and shifts.Provided the example of two personalized calling transfer numbers among Fig. 4, the 1st is that caller ID 22223333 is transferred to 88889999, the 2 is caller ID 44445555 is not shifted but to be answered by this machine.
Below with reference to Fig. 2 the calling transfer processing that the present invention relates to is described.
In the example of Fig. 2, receive the calling that the PSTN or the GSM network user initiate by message 200 IAM (initial address message) Gateway Mobile Switching Center GMSC.Called subscriber's telephone number transmits as the annex of IAM message.GMSC sends the attaching position register HLR of the request of routing information to the called subscriber in 201 SRI (transmission routing information) message, unlike the prior art be in SRI message, to comprise the information of calling number.The information of the calling transfer setting of relevant this called number is included in the user profile of HLR and/or VLR, the calling transfer that HLR sets according to the user is provided with decision and carries out calling transfer by HLR or VLR, and whether HLR will carry out calling transfer and transfer to which number according to user's personalized call transfer setting and caller ID decision simultaneously.HLR can carry out unconditional call forwarding, and busy hour call is shifted and can only be carried out by the VLR that is responsible for this user.HLR or VLR can carry out all calling transfer of having ready conditions of calling transfer when knowing calling transfer and no response in the time of can not arriving.
It is different that ensuing calling transfer process and existing process do not have, and no longer describes herein.Attached
Fig. 5 has provided HLR and has handled the flow chart that personalized call shifts.
In step 501, HLR receives SRI message from GMSC.
In step 502, HLR judges whether the user is provided with personalized call and shifts, if be not provided with then change 508 and continue other processing, otherwise changes step 503.
In step 503, HLR extracts calling number from the SRI message of receiving.Step 504 is searched in the database shown in the accompanying drawing 4 according to the calling number that obtains.
In step 509, the number that is transferred to of personalized incoming call correspondence is transferred to calling in the HLR decision.
In step 507, HLR decision refusal calling transfer.
In step 510, HLR is included in the routing iinformation of called number in the SRI ACK message then and sends to GMSC according to the routing iinformation that the judgement and the existing algorithm of step 507 and 509 obtains called number.
More than be that example is described embodiments of the invention with the gsm system, the basic thought of the embodiment of other system is consistent therewith, no longer describes at this.
Claims (4)
1. call transfer method in the communication network comprises step:
HLR receives SRI message and extract calling number from SRI message from GMSC;
Search in database according to calling number;
Judge to Enter Number whether be set at calling transfer, if, then will Enter Number and transfer to the corresponding number that is transferred to, if not, then refuse calling transfer.
2. method according to claim 1 is characterized in that the described number that is transferred to is provided with by the user.
3. method according to claim 1 is characterized in that the user is provided with calling transfer by one of following manner: online setting, note setting, transmission sequence.
4. method according to claim 3 is characterized in that described calling transfer setting comprises:
To Enter Number and transfer at least one and be transferred to number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101480260A CN101378543A (en) | 2007-08-29 | 2007-08-29 | Method for extending call transfer function of communication network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101480260A CN101378543A (en) | 2007-08-29 | 2007-08-29 | Method for extending call transfer function of communication network |
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| CN101378543A true CN101378543A (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007101480260A Pending CN101378543A (en) | 2007-08-29 | 2007-08-29 | Method for extending call transfer function of communication network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219643A (en) * | 2013-06-04 | 2014-12-17 | 中国电信股份有限公司 | Method and system for diverting of voice and short message services |
| CN104243731A (en) * | 2013-06-21 | 2014-12-24 | 阿尔卡特朗讯公司 | Call handling method and device |
| WO2016065843A1 (en) * | 2014-10-28 | 2016-05-06 | 中兴通讯股份有限公司 | Terminal call transfer method and terminal |
-
2007
- 2007-08-29 CN CNA2007101480260A patent/CN101378543A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219643A (en) * | 2013-06-04 | 2014-12-17 | 中国电信股份有限公司 | Method and system for diverting of voice and short message services |
| CN104243731A (en) * | 2013-06-21 | 2014-12-24 | 阿尔卡特朗讯公司 | Call handling method and device |
| WO2016065843A1 (en) * | 2014-10-28 | 2016-05-06 | 中兴通讯股份有限公司 | Terminal call transfer method and terminal |
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Open date: 20090304 |