CN1553687A - Method for making mobile telephone select tel. numbers to be transferred - Google Patents

Method for making mobile telephone select tel. numbers to be transferred Download PDF

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Publication number
CN1553687A
CN1553687A CNA2003101244560A CN200310124456A CN1553687A CN 1553687 A CN1553687 A CN 1553687A CN A2003101244560 A CNA2003101244560 A CN A2003101244560A CN 200310124456 A CN200310124456 A CN 200310124456A CN 1553687 A CN1553687 A CN 1553687A
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CN
China
Prior art keywords
busy
incoming call
call
reply
transfer
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Pending
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CNA2003101244560A
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Chinese (zh)
Inventor
刚 阮
阮刚
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Shanghai Huineng Pc Ltd
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Shanghai Huineng Pc Ltd
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Priority to CNA2003101244560A priority Critical patent/CN1553687A/en
Publication of CN1553687A publication Critical patent/CN1553687A/en
Priority to PCT/CN2004/001460 priority patent/WO2005060288A1/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/54Arrangements for diverting calls for one subscriber to another predetermined subscriber
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2207/00Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/18Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

A telephone device in mobile phone system for setting telephone numbers to which the caller phone number can be forwarded is disclosed. The destination telephone numbers have no limit for quantities. It mainly uses call forwarding on busy (CFB) function. Its main steps are: sets the access step, the finishing step, the initializing step, the compliant step, the non-reply call forwarding step and the sub-step for forwarding the non-reply call as the caller phone number incoming. Based on the invention the such function can be built: the user can select which phone number the caller phone number will be forwarded to, or preset the decision rule by which the caller phone number can be forwarded. The invention doesn't need to change mobile phone hardware.

Description

Make mobile phone can when incoming call, select to be transferred to the method for which telephone number
Technical field:
Field of mobile communication, the incoming call branch that is specifically related to travelling carriage turns to.
Background technology:
Current, the mobile communication technology development is maked rapid progress, and smart mobile phone also constantly updates, and function is also more and more.But the choice of people when phone arrives still seldom, knowing the choice of caller after whom is also seldom, promptly transfers to call or answer, and hangs up or answer.
The busy personage of phone need to do reasonably shunting to incoming call, all kinds of incoming calls are (such as meeting, motion, office, leisure etc.) under different situations, need to be transferred to respectively voice mail, secretary's platform, office telephone, home phone number, assistant's phone, answer phone, spacing etc.Like this, just need to be when phone arrive, or after knowing caller ID, determine to turn to again which telephone number; In addition, the less use of people is called out and is shifted usually, is because not remembering to change in advance arranges, and has expected someone's call, and can not change forwarding number again, and addressing this problem best bet also is to select to turn to which number when incoming call.
Can select incoming call is turned to the function of which phone when so far, not having mobile phone to have incoming call.
Calling out aspect the transfer, mobile phone generally provides two class call transfer modes, and unconditional call forwarding and have ready conditions to call out and shift all is to arrange before incoming call, and onset behind the incoming call does not arrange when incoming call and immediately to the function of this incoming call onset.There is the utilization mentioned to have ready conditions in the former document and calls out the automatically judgement selections in two fens that transfer reaches the normal ringer of incoming call or is transferred.Before incoming call, preestablish under the situation of calling transfer number, we also can select to turn to one of 2 telephone numbers when incoming call, this is to utilize to respond for network with the different conditions of no response or line be busy, select the function of different conditions calling transfer number separately when reaching incoming call for use, promptly or the forwarding number of selecting for use no-reply call to shift, perhaps select the forwarding number of meeting busy calling transfer for use.These two numbers are all set before incoming call, and can only 2 select 1 (shut down or do not have calling network shift be difficult to be used as such); Moreover no-reply call is shifted general networking and just worked after (network that has is adjustable) at 20 seconds, is used for the instant transfer of incoming call, and is impracticable aspect promptness.This is the selection of two paths, can select by 3 paths reluctantly, and be before incoming call, to arrange, work behind the incoming call.
Also have a demand difference that proposes with us to get farther, but the function of using often now, i.e. " firewall for received calls ", it is to forbid that with what preset inserting phone list or allowing to insert phone list is foundation, judging according to caller ID in when incoming call should ring or hang up, utilization forbids meeting busy calling transfer, selects to hang up or ring to provide line be busy (or hanging up) or not provide line be busy (or hanging up).This is the selection of two paths, from upper different be to have used to call out the illegal state that shifts, also be before incoming call, to arrange, work behind the incoming call.
Summary of the invention:
At above-mentioned this vacancy of mobile telephone system function a few days ago, the invention provides the method for solution.
The invention provides and can make mobile phone in when incoming call, or after the beginning ring, can select to turn to the method for which telephone number, this destination phone numbers that can select to shift is not 1 or 2, but does not have restricted number, and instantaneity is good.This destination phone numbers be when when incoming call or ring, established into, and to this incoming call onset.On the basis of the method, can construct such function: the user can select in the future electrotransfer to which phone in when incoming call; Perhaps by predefined decision rule, determine according to caller ID, the situation of presence electrotransfer is to which phone in the future.This method provides the realization on the basis of most critical, but does not stipulate the user interface of selection forwarding number on upper strata and the specific implementation that the auto-steering logic is judged.
The mobile phone 1 that can implement this method is conventional, as depicted in figs. 1 and 2, the one or a few blocks pcb board 10 etc. that comprises radio-frequency unit 11, processor device 12, storage device 13, display screen 2, button 3, loudspeaker 6, microphone 8, status indicator lamp 5, battery 7 and integrated these devices.They are kept in touch with different base stations 14 in honeycomb mobile communication network as shown in Figure 3, are connected with other networks such as fixed telephone network via equipment such as switches.They need to possess " busy is called out and shifted " business.
This method is by processor device 12 comparison operations, and storage arrangement 13 exchange storage data via radio-frequency unit 11 and network interaction, thereby are finished function.
Terse clear for the description that makes the back, make earlier 2 nominal definitions:
1, number is forbidden in simulation: when " meeting busy calling transfer " when transferring to this number, the calling party obtains with the user and forbids " meeting the calling transfer of doing " similar effect.This number can be selected the head feature number of the mobile phone of network permission for use.Certainly, when this number of selecting does not have above-mentioned effect, select to divide not impact of the basic function of turning to during incoming call that we are realized increasing newly.
2, simulation is forbidden: forbid number to allow " busy is called out and shifted " to be transferred to simulation, replace forbidding " busy is called out and shifted " state.And confirm that it finishes.
This method utilized the busy calling transfer of the chance of mobile telephone system (also claim " the line is busy " calling transfer, English name: mechanism CallForwarding on Mobile Subscriber Busy), step is as follows:
1, initialization step.
If originally network is (if not this paper refers in particular to, all refer to comprise the whole mobile telephone network of the equipment such as transmission on the network and exchange) to arrange be to forbid " busy is called out and shifted ", then " busy is called out and shifted " should be set to allow, can be made as simulation and forbid.
This step, needs to carry out in the time of might being set as illegal state " busy is called out and shifted ".Can be arranged in following sight carries out: start, or restart, or after the function of just having upgraded this method and being realized, or select to carry out by the user.
2, compatible step.
Being set on the discovery network forbidden " meeting the calling transfer of doing " when (referring to that its state is for forbidding that it is inoperative within the rule " to meet busy calling transfer " during the unconditional call forwarding state), and palpus changes to be made as to simulate to be forbidden; When forbidding " meeting busy calling transfer " when the user is provided with, show " forbidding " that the real network operation becomes simulation and forbids; When the user checks " meet busy calling transfer " state, will simulate illegal state and be shown as and forbid " meeting the calling transfer of doing " state.
The purpose of this step is to select to divide the realization mechanism of rotating function when ensureing newly-increased incoming call, and keeps original " busy is called out and shifted " function.In various degree multi-form realization can be arranged.Minimum requirements guarantees not forbid " busy is called out and shifted ".
Generally carry out the compatibility conversion in the place that changes the busy calling transfer setting of chance.
3, establish into step.
During incoming call, the target phone with this incoming call will turn to is built into " busy is called out and shifted " number with the network prescribed form, and " busy is called out and shifted " of newly establishing number after thoroughly come into force by arranging on the network, and this step finishes.
Confirm that its method that comes into force is to read its forwarding number from network, errorless.Certainly, also can after being provided with successfully, guarantee that it comes into force by the time-delay reasonable time.
4, end step.
The ath command of this incoming call is promptly sent in on-hook, or sends " line be busy " signal, or sends " line be busy " signal and ath command.
At last, such as the effect of need maintenance original " busy is called out transfer ", then the setting with " busy is called out transfer " reverts to front " the busy calling is shifted " setting of this incoming call.If but the phone that shifts take this " busy call out shift " is " busy is called out and shifted " phone of shifting of acquiescence next time, until till the change, then need not this recovery operation.
5, optimize the no-reply call transfer step.
Characteristics:
A) can normal ringer in the time setting ring how long shift incoming call after (or number of times);
Attention: when the difference of this time and total ring time should guarantee that bell signal does not finish, " busy is called out and the shifted " setting of number on network of newly establishing of establishing step namely thoroughly came into force.
B) reach incoming call to be divided after predetermined ring time and go to suitable number (selected according to caller's type and the situation of presence etc.);
C) use the no-reply call forwarding function of this simulation to conflict in logic with former no-reply call transfer for exempting from, should ban use of former no-reply call to shift.Ban use of former no-reply call to shift and also bring a benefit, the time that user selection shifts when namely sending a telegram here can be long.
Method:
Generally the no-reply call transfer setting that the interface increases this optimization is being set, or alternative original no-reply call transfer is provided with in calling transfer.
During incoming call, after reaching predetermined ring time (or number of times), determine this destination phone numbers, finish this step by establishing into step and ending step.
This step needs the cooperation of initialization step and compatible step equally.
6, the incoming call time-division of no-reply call transfer is turned to step.
Before incoming call, should guarantee to allow no-reply call to shift, but can't when incoming call, select forbid that no-reply call shifts (comprise simulation forbid no-reply call shift) or shift, can only when incoming call, select to divide the telephone number that turns to.Compare with optimizing the no-reply call transfer step, general networking does not provide the business of adjusting the no response time now, namely can not set the no response time; And can not when incoming call, select to shift or continue ring; Benefit is to implement simply.
Here can in conjunction with manual selection, after arriving the no response time (being generally 20 seconds), shift by incoming call; Or preestablish, automatically judge forwarding number according to caller's type and the situation of presence during incoming call, shift during the time in the arrival no response.The effect that simulates the ring unanswered that can be fairly simple.
Some implementation step that can select or contents are arranged in the step of this method, these steps or content will make the enforcement of this method reach reasonable (quick, stable, complete etc.) effect, be necessary to some network or to general networking perhaps, this has clearly level describe in the claims.
The telephone number that is transferred to must meet the requirement of the residing concrete network environment of mobile phone.
To the details of some known routines, describe simplyr or default, for technical staff in the industry, can not have influence on the enforcement of this method.
Description of drawings
Accompanying drawing has been selected general realizing route, is in order to make specification seem easy understanding, is not to cover all selections and situation.
Fig. 1 is according to mobile phone schematic diagram of the invention process.
Fig. 2 is the circuit module schematic diagram of Fig. 1 mobile phone.
Fig. 3 is the schematic diagram of the mobile communication network implemented of the inventive method, and wherein 14 is mobile communication base stations, the 15th, and be the communication apparatus of core with the switch, the 16th, connect other communication networks (as PSTN) of this mobile communication network.
Fig. 4 is total step schematic diagram.
Fig. 5 to Figure 10 is the performing step flow chart according to method of the present invention.
Figure 11 is an initialization step flow chart among the embodiment.
Embodiment
The enforcement of this method can be revised at original mobile phone (1), or include in new design, or add this method at existing mobile phone.This method does not relate to the modification of hardware.This method is the realization that can divide the function of turning in when incoming call, the user selection interface the when implementer needs to add incoming call thereon, or automatically divide judgment rule and the user's setting thereof of turning to, user just to be seen and use this function.
Its essential implementation is as follows:
1, revises or in new design, include this method at original system.
Must write or revise the chance busy calling transfer setting of calling transfer in being provided with according to the requirement of the compatible step of this method.
2, on original system, add this method.
Ward off layout setting in addition by the compatible step requirement of this method and meet busy calling transfer, all calling transfer can be provided with a newly organized user interface for keeping globality.Manage preferably to forbid that the user uses original busy to call out and shifts setting, or its setting operation on network is blocked, arrange through compatible step conversion.
3, add initialization step.
Can or restart in start, or add the execution of initialization step when just having upgraded software startup after the function that this method realizes, also can be carried out by user selection.Mainly be to guarantee to meet busy calling transfer not to be under an embargo.
4, with the interface of upper layer software (applications).
A) manually select.
Upper layer software (applications) is when incoming call or by default number of user selection, perhaps by number of the new input of user.In a word, obtain one this come the destination phone numbers of electrotransfer, and before ring finishes, can finish and establish into step, then change establishing of this method over to into step and subsequent end step.
B) select automatically.
Upper layer software (applications) compares judgement according to caller ID, sight etc. on default data, after the destination phone numbers of determining to turn to, change establishing into step and subsequent ending step of this method over to.
C) optimizing no-reply call shifts.
This function can be adapted or increase to upper layer software (applications), provide the interface allow user preset ring time, and the decision logic of forwarding number or definite number that diverts the aim targetedly, the ring time of determining and the number that diverts the aim are passed to optimization no-reply call transfer step.By optimizing no-reply call transfer step complete operation.
5, note.
A) when incoming call, front ring finishes if " busy is called out and shifted " number the arranging on network of establishing thoroughly come into force, then in the future electrotransfer to newly establish into the operation of number can fail, when the artificial selection destination number this situation might appear generally.Should forbid that the user selected to shift in this time period, or give necessary prompting.
B), then can be transferred to by hang-up key this moment and establish into the number that comes into force last time if in establishing the process of forwarding number, have phone to enter.
C) if the user has enabled conventional no-reply call to be shifted, then can break after the stipulated time (such as 20 seconds) that arrives the no-reply call transfer, incoming call is transferred to default no-reply call and shifts phone.This can affect the user does manually to select near 20 seconds the time, and remains unfulfilled the realization that ending step is hung up the transfer of action when arriving 20 seconds.Preferably forbid original conventional no-reply call transfer, replace the optimization no-reply call forwarding function of this method.
D) when allowing the unconditional call forwarding state, the branch in the time of can not sending a telegram here turns to operation, because it can not respond incoming call, can not enter to establish into step and ending step.
Illustrate network environment below, opened on the mobile phone 1 of call transfer service, on mobile phone 1 original system, add the step of implementing this method at GSM:
Prompting: if allowing that busy calling transfer is set under the unconditional call forwarding state, then must temporarily forbid unconditional call forwarding earlier in the setting up procedure, wait to set up again and recover.Following initialization step has been listed this process, and compatible step and unlisted this process of optimization no-reply call transfer step can be copied adding.Some mobile phone development platform may provide the interface of different encapsulation, might not need this process, as long as success can be set, and keeps original calling transfer state effect just passable.Other parts may also have similar problem, but its fundamental method is still identical.
1, initialization step.
When start, obtain busy and call out the state that shifts, if for forbidding, then obtain current unconditional call forwarding state, as being the permission unconditional call forwarding, then be made as and forbid unconditional call forwarding, busy calling transfer is set then to be forbidden for simulation, simulation forbids that number is: 139 (this number is one of head number of China Mobile, need to adjust according to local networks number situation), at last, if be to allow the unconditional call forwarding state originally, then recover to allow the unconditional call forwarding state; If for allowing, then do not change.Flow process is seen Figure 11.
2, compatible step.
A) have user independently and arrange and call out the interface of shifting, when the user forbids that in this operation interface setting busy calls out when shifting, interface display shifts for forbidding that busy is called out, and the actual setting of network is then forbidden for simulation, simulates and forbids that number is: 139.
B) inquire about busy when calling out transfering state as the user, if the state of reading is for allowing, and number forbids number " 139 " (reading back is " 86139 ", and the front has added country number) for simulation, then is shown as to forbid that busy is called out and shift; If the state of reading shifts for forbidding, then be shown as forbidding that busy is called out, and be set to simulation and forbid that simulation forbids that number is: 139.
3, optimize the no-reply call transfer step.
A) allowing user's setting incoming call do no-reply call after what seconds shifts.
B) allow the user import the number that diverts the aim.If upper layer software (applications) is selected this to combine with automatic the selection, can judge the no-reply call forwarding number automatically at different sights and caller, then needn't allow the user import herein.
C) when incoming call, after reaching predetermined ring time (source " a) "), obtain this destination phone numbers (source " b) "), finish this step by establishing into step and end step.
4, establish into step.
A) manually select or automatically select to obtain the destination phone numbers that this incoming call will be transferred to by upper layer software (applications).
B) connect " a) " and be built into " busy is called out and shifted " number with the network prescribed form, then return failure as unsuccessful, upper layer software (applications) calls to establish into step again and establishes into operation, and is unsuccessful such as 5 times, then failure is reported to the police, and asks user selection to answer, hang up or continue and shifts.
C) meet " b) " and read its forwarding number from network, confirm as the number of establishing after, enter end step.
5, end step.
Send the ath command of this incoming call.
We realize content of the present invention on mobile phone fully.
The present invention comprises all these and is in claim scope interior selection, modification, variation.

Claims (13)

1, a kind of method that makes mobile phone (1) when the phone incoming call is arranged, can select incoming call is turned to which telephone number, it is characterized in that, establish into the destination phone numbers that need turn to when when incoming call or ring, and this incoming call is turned to this number, the treatment step during incoming call is:
A) establish into step: destination phone numbers is built into the forwarding number of " busy is called out and shifted ", " busy is called out and shifted " of newly establishing number after thoroughly come into force by arranging on the network, and this step finishes;
B) end step: after the step a), finish this incoming call.
2, method according to claim 1 is characterized in that, when guaranteeing to be about to send a telegram here, " busy is called out and shifted " state is for allowing.
3, method according to claim 2 is characterized in that, will forbid that the setting of " meeting busy calling transfer " changes into: allow " meeting busy calling transfer ", it " meets busy calling transfer ", and number is made as the number that network allows.
4, method according to claim 3 is characterized in that, the number that said network allows is that when transferring to this number, the calling party obtains and dial into the similar effect of mobile phone of forbidding " meeting the calling transfer of doing " when " the busy calling transfer of chance ".
According to the described method of claim 4, it is characterized in that 5, said this number is the head feature number of the mobile phone that network allows.
6, method according to claim 1 is characterized in that, this incoming call of said end is to send the ath command of this incoming call, or send " line be busy " signal, or send " line be busy " signal and ath command.
7, method according to claim 1 is characterized in that, said end step is, last in end step will " be met busy calling transfer " and revert to the setting before this incoming call.
8, method according to claim 1 is characterized in that, said thoroughly coming into force be, some of network responds just that expression receives data, and what we needed is to work in its effect link, and this is the sign that thoroughly comes into force.
9, method according to claim 8 is characterized in that, said thoroughly coming into force is, and be from network acquisition " the busy calling transfer of chance " number, errorless.
10, method according to claim 1, it is characterized in that, shifting the no-reply call that substitutes original routine with the simulation no-reply call of optimizing shifts, promptly after incoming call reaches predetermined ring time, the destination phone numbers that this simulation no-reply call is shifted by establish into step establish into, and end step is finished transfer operation.
11, method according to claim 10 is characterized in that, when guaranteeing to be about to send a telegram here, " busy is called out and shifted " state is for allowing.
12, a kind of mobile phone (1) that makes can be set which telephone number this incoming call turns to after arriving no-reply call transfer time method as required when the phone incoming call is arranged, it is characterized in that, before the phone incoming call arrives no-reply call transfer time, the destination phone numbers that need are turned to is built into the no-reply call forwarding number, and thoroughly comes into force.
13, method according to claim 12 is characterized in that, the no-reply call transfering state is for allowing when guaranteeing to be about to send a telegram here.
CNA2003101244560A 2003-12-16 2003-12-16 Method for making mobile telephone select tel. numbers to be transferred Pending CN1553687A (en)

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CNA2003101244560A CN1553687A (en) 2003-12-16 2003-12-16 Method for making mobile telephone select tel. numbers to be transferred
PCT/CN2004/001460 WO2005060288A1 (en) 2003-12-16 2004-12-16 A method for when a call coming, making a mobile phone selectively forwarding a coming call to a telephone number

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Cited By (12)

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WO2009059537A1 (en) * 2007-10-30 2009-05-14 Huawei Technologies Co., Ltd. Method, device and system for controlling mobile terminal to transfer call
CN100505901C (en) * 2006-10-27 2009-06-24 华为技术有限公司 Call processing method for communication terminal
WO2009082921A1 (en) * 2007-12-14 2009-07-09 Huawei Technologies Co., Ltd. Implement method, system and apparatus of call forwarding service
CN101345797B (en) * 2007-07-10 2011-11-30 米特尔网络公司 Communication hand-over between telephone set equipments
CN103139723A (en) * 2011-11-30 2013-06-05 中国联合网络通信集团有限公司 Method and system of processing multimedia message and multimedia information and device
US8737589B2 (en) 2006-04-30 2014-05-27 Lenovo (Beijing) Limited Method and phone terminal for diverting call
CN104184888A (en) * 2014-07-29 2014-12-03 小米科技有限责任公司 Call transfer method, device and terminal
WO2016015217A1 (en) * 2014-07-29 2016-02-04 华为技术有限公司 Incoming call forwarding method and user equipment
CN105682064A (en) * 2015-12-30 2016-06-15 Tcl集团股份有限公司 Call forwarding method and apparatus for incoming call
US9602671B2 (en) 2014-07-29 2017-03-21 Xiaomi Inc. Method and terminal device for telephone call transfer
CN108234791A (en) * 2016-12-22 2018-06-29 展讯通信(上海)有限公司 Method and device, terminal and the network side equipment of call forwarding
CN110278720A (en) * 2018-01-15 2019-09-24 Nec平台株式会社 Incoming call controls equipment, incoming call control system, call reception control method and program

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Publication number Priority date Publication date Assignee Title
US8737589B2 (en) 2006-04-30 2014-05-27 Lenovo (Beijing) Limited Method and phone terminal for diverting call
CN100505901C (en) * 2006-10-27 2009-06-24 华为技术有限公司 Call processing method for communication terminal
CN101345797B (en) * 2007-07-10 2011-11-30 米特尔网络公司 Communication hand-over between telephone set equipments
WO2009059537A1 (en) * 2007-10-30 2009-05-14 Huawei Technologies Co., Ltd. Method, device and system for controlling mobile terminal to transfer call
WO2009082921A1 (en) * 2007-12-14 2009-07-09 Huawei Technologies Co., Ltd. Implement method, system and apparatus of call forwarding service
CN103139723A (en) * 2011-11-30 2013-06-05 中国联合网络通信集团有限公司 Method and system of processing multimedia message and multimedia information and device
CN104184888A (en) * 2014-07-29 2014-12-03 小米科技有限责任公司 Call transfer method, device and terminal
WO2016015217A1 (en) * 2014-07-29 2016-02-04 华为技术有限公司 Incoming call forwarding method and user equipment
US9602671B2 (en) 2014-07-29 2017-03-21 Xiaomi Inc. Method and terminal device for telephone call transfer
US10306070B2 (en) 2014-07-29 2019-05-28 Huawei Technologies Co., Ltd. Call transfer method and user equipment
CN105682064A (en) * 2015-12-30 2016-06-15 Tcl集团股份有限公司 Call forwarding method and apparatus for incoming call
CN108234791A (en) * 2016-12-22 2018-06-29 展讯通信(上海)有限公司 Method and device, terminal and the network side equipment of call forwarding
CN110278720A (en) * 2018-01-15 2019-09-24 Nec平台株式会社 Incoming call controls equipment, incoming call control system, call reception control method and program
CN110278720B (en) * 2018-01-15 2022-02-22 Nec平台株式会社 Incoming call control device, incoming call control system, incoming call control method, and program

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