CN105188039A - Conversation switching method, device and system - Google Patents

Conversation switching method, device and system Download PDF

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Publication number
CN105188039A
CN105188039A CN201510335048.2A CN201510335048A CN105188039A CN 105188039 A CN105188039 A CN 105188039A CN 201510335048 A CN201510335048 A CN 201510335048A CN 105188039 A CN105188039 A CN 105188039A
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China
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terminal
call
telephone number
party
switched
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CN201510335048.2A
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CN105188039B (en
Inventor
张伦泳
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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Priority to CN201510335048.2A priority Critical patent/CN105188039B/en
Publication of CN105188039A publication Critical patent/CN105188039A/en
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Publication of CN105188039B publication Critical patent/CN105188039B/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/16—Communication-related supplementary services, e.g. call-transfer or call-hold

Abstract

The invention discloses a conversation switching method, a device and a system. The conversation switching method comprises steps that, information of a terminal A is acquired by a terminal C through a preset communication mode, and the information of the terminal A comprises a telephone number of the terminal B having telephone conversation with the terminal A; a call request is sent by a terminal C to the conversation switching device, and the call request comprises telephone numbers of the terminal C and the terminal B, HLR of the terminal B is determined by the conversation switching device according to the telephone number of the terminal B; MSC of the terminal B is determined according to the HLR; circuit connection between the terminal C and the MSC is established, a connection segment of the MSC and the terminal A in circuit connection between the terminal A and the terminal B is replaced by circuit connection of the MSC and the terminal C, and the circuit connection of the terminal C and the MSC is connected with a connection segment of the MSC and the terminal B of the circuit connection between the terminal A and the terminal B to establish circuit connection between the terminal C and the terminal B for conversation switching.

Description

A kind of call handover method, device and system
Technical field
The present invention relates to the communication technology, espespecially a kind of call handover method, device and system.
Background technology
Along with the development of the communication technology, the kind of communication tool is increasing, and it is also more and more diversified that people carry out communication modes.When mobile phone users is when using mobile communication business, owing to being in moving process, may cover bad because of entering into mobile network signals, or the region of customer volume very large (exceeding the service ability of mobile base station) and occur the situation that service quality declines, the situations such as such as sound card pauses, call drop.When after the situation that speech qualities such as occurring above-mentioned sound card pauses, call drop declines, in order to ensure speech quality, current talking can continue from the terminal switch conversed to third party's terminal to converse with call opposite end by mobile phone users.
In existing call handoff technique, when needing when there being a correspondent in the both sides conversed to carry out call switching, this correspondent in terminal by pressing specific function key, call between this correspondent and another correspondent is kept, and continue on the terminal to dial the third party's termination number changed to be cut, thus the call of this correspondent is switched to the call between this third party's terminal and this another correspondent by realization.Such as, certain user is by conversing between terminal A and terminal B, and when needing the call of terminal A to be switched to the call of terminal C and terminal B, this user need press certain special function keys on terminal A, the call of terminal A and terminal B is kept, and on terminal A, continues the number dialling terminal C.The call between terminal C and terminal B is set up after terminal C off-hook.
There is following problem in existing call switching mode: cannot complete call and switch in the process of double-talk, need when conversing maintenance, call handover request is initiated by the terminal of this correspondent, and the user of the opposing party of call can perceive and carried out call and switch, and need wait in the process by keeping, make the time of both sides' dropped calls longer.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of call handover method, device and system, can complete call in real time and switching in the process of double-talk, the user of the opposing party of call can not perceive and carry out call switching.
In order to reach the object of the invention, first aspect, the invention provides a kind of call handover method, and described method comprises:
Receive the call request of third party's terminal, described call request comprises: the telephone number of third party's terminal and the telephone number of call distant terminal;
Determine the attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to described HLR; The telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling; Described first call hand off signaling is used to indicate described HLR and determines moving exchanging center MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, carries the telephone number of described third party's terminal in described second call hand off signaling;
Described second call hand off signaling is used to indicate described MSC and sets up described third party's terminal according to the telephone number of described third party's terminal and be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
Further, the telephone number of the described call distant terminal that described call request comprises is when described to be switched terminal is near described third party's terminal, obtains after reading the information of described to be switched terminal by described third party's terminal by default communication mode; Wherein, the information of described to be switched terminal comprises the telephone number of described call distant terminal.
Further, described default communication mode comprises:
Radio frequency discrimination RFID communication, wireless near field communication NFC, Bluetooth communication or infrared communication.
Further, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in the information of described to be switched terminal, also comprise in described call request: the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal;
Accordingly, after the call request of described reception third party terminal, described method also comprises:
Verify that whether the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal is correct;
After being verified, performing the described telephone number according to described call distant terminal and database and determine the attaching position register HLR of described call distant terminal and send the first call hand off signaling to described HLR.
Second aspect, the invention provides a kind of call switching device shifter, described call switching device shifter comprises:
Receiving element, for receiving the call request of third party's terminal, described call request comprises: the telephone number of third party's terminal and the telephone number of call distant terminal;
Processing unit, for determining the attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and sends the first call hand off signaling to described HLR; The telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling; Described first call hand off signaling is used to indicate described HLR and determines moving exchanging center MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, carries the telephone number of described third party's terminal in described second call hand off signaling;
Described second call hand off signaling is used to indicate described MSC and sets up described third party's terminal according to the telephone number of described third party's terminal and be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
Further, the telephone number of the described call distant terminal that described call request comprises is when described to be switched terminal is near described third party's terminal, obtains after reading the information of described to be switched terminal by described third party's terminal by default communication mode; Wherein, the information of described to be switched terminal comprises the telephone number of described call distant terminal.
Further, described default communication mode comprises:
Radio frequency discrimination RFID communication, wireless near field communication NFC, Bluetooth communication or infrared communication.
Further, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in the information of described to be switched terminal, also comprise in described call request: the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal;
Accordingly, described device also comprises:
Authentication unit, for reception described call request after according to database authentication the service password of the telephone number of to be switched terminal and the call service switchover of described to be switched terminal whether correct; After being verified, triggering described processing unit and determine attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database and send the first call hand off signaling to described HLR.
The third aspect, the invention provides a kind of terminal, and this terminal comprises:
Acquiring unit, for when to be switched terminal and call distant terminal are being conversed and needing described call to be switched between described terminal and described call distant terminal, obtained the information of described to be switched terminal by default communication mode after, sending to calling unit; Wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal;
Described calling unit, for receive described to be switched terminal from described acquiring unit information after send call request to the call switching device shifter as described in second aspect.
Fourth aspect, the invention provides a kind of communication system, and described communication system comprises:
To be switched terminal, the attaching position register HLR of call distant terminal, third party's terminal, described call distant terminal, the moving exchanging center MSC belonging to described call distant terminal, call switching device shifter;
When described to be switched terminal and call distant terminal are being conversed and needing described call to be switched between described third party's terminal and described call distant terminal, described third party's terminal is obtaining the information of described to be switched terminal by presetting communication mode; Wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal;
Described third party's terminal sends call request to described call switching device shifter, and described call request comprises: the telephone number of described third party's terminal and the telephone number of described call distant terminal;
After described call switching device shifter receives described call request, determine the HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to described HLR; The telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling;
After described HLR receives described first call hand off signaling, determine MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, in described second call hand off signaling, carrying the telephone number of described third party's terminal;
After described MSC receives described second call hand off signaling, set up described third party's terminal according to the telephone number of described third party's terminal to be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
Further, described default communication mode comprises:
Radio frequency discrimination RFID communication, wireless near field communication NFC, Bluetooth communication or infrared communication.
Further, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal and yet comprise the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in described call request in the information of described to be switched terminal
Accordingly, after described call switching device shifter receives described call request, determine the HLR of described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to the HLR of described call distant terminal, specifically comprise:
After described call switching device shifter receives described call request, verify that whether the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal is correct, after being verified, described call switching device shifter is determined attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database and is sent the first call hand off signaling to described HLR.
The invention provides a kind of call handover method, device and system, when needs carry out call switching, to be switched terminal is near third party's terminal, described third party's terminal gets the information of described to be switched terminal by presetting communication mode, wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal, described third party's terminal sends call request to call switching device shifter, and described call request comprises: the telephone number of described third party's terminal and the telephone number of described call distant terminal, described call switching device shifter determines the HLR belonging to described call distant terminal according to the telephone number of described call distant terminal, described HLR searches the MSC belonging to described call distant terminal, described MSC initiates the calling of third party's terminal to set up described MSC and to be connected with the circuit of third party's terminal and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.By the technical scheme that the embodiment of the present invention provides, can complete call in real time and switch in the process of double-talk, the user of the opposing party of call can not perceive and carry out call switching.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms a part for specification, is used from and explains technical scheme of the present invention, do not form the restriction to technical solution of the present invention with the embodiment one of the application.
The schematic flow sheet of a kind of call handover method that Fig. 1 provides for the embodiment of the present invention;
The structural representation one of a kind of switching device shifter of conversing that Fig. 2 provides for the embodiment of the present invention;
The structural representation two of a kind of switching device shifter of conversing that Fig. 3 provides for the embodiment of the present invention;
The structural representation of a kind of terminal that Fig. 4 provides for the embodiment of the present invention;
The enforcement schematic diagram of a kind of call handover method that Fig. 5 provides for the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, hereinafter will be described in detail to embodiments of the invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combination in any mutually.
Can perform in the computer system of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing.Further, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
To be switched terminal in the embodiment of the present invention, call distant terminal and third party's terminal can be fixed communication the terminal such as communication terminal such as fixed line, personal computer or the mobile communication terminal such as communication terminals such as mobile phone, panel computer.The technical scheme that the embodiment of the present invention provides under can being applied to the situations such as the speech quality decline when user uses call terminal to converse, network signal quality decline or call terminal electricity are not enough needs current talking to be switched in real time the scene of third party's terminal.
The embodiment of the present invention provides a kind of call handover method, and based on the call switching device shifter that the embodiment of the present invention increased in existing communication network provides, as shown in Figure 1, the method comprises:
Step 101, call switching device shifter receive the call request of third party's terminal, and described call request comprises: the telephone number of third party's terminal and the telephone number of call distant terminal.
Further, the telephone number of the described call distant terminal that described call request comprises is when described to be switched terminal is near described third party's terminal, obtains after reading the information of described to be switched terminal by described third party's terminal by default communication mode; Wherein, the information of described to be switched terminal comprises the telephone number of described call distant terminal.Further, described default communication mode comprises: radio-frequency (RF) identification (RadioFrequencyIdentification, RFID) communication, wireless near field communication (NearFieldCommunication, NFC), Bluetooth communication or infrared communication.In NFC mode, illustrate that aforementioned described third party's terminal obtains the process of the information of described to be switched terminal: in described to be switched terminal, be provided with NFC chip, NFC card-reading apparatus is provided with in described third party's terminal, when needing when using the user of described to be switched terminal to carry out call switching, by the NFC card-reading apparatus of described to be switched terminal near described third party's terminal, when the NFC card-reading apparatus of described third party's terminal will read the information in the NFC chip of described to be switched terminal, described to be switched terminal points out this user on its display interface, if this user allows the information in the NFC chip of the described to be switched terminal of described third party's terminal reading, after being confirmed by click respective keys, then the NFC card-reading apparatus of described third party's terminal just can read the information in the NFC chip of described to be switched terminal, wherein, the telephone number of call distant terminal is included in information in the NFC chip of described to be switched terminal.It is worth mentioning that, by the modes such as RFID communication, NFC, Bluetooth communication or infrared communication between both devices transmission information belong to existing technological means, it is only schematic that above-mentioned example illustrates, those skilled in the art can understand foregoing with reference to relevant prior art.
It should be noted that, described call switching device shifter can to there being a fixing access code, described third party's terminal can by dialing this access code to the described call switching device shifter request of making a call, and this access code can be stored in advance in the storage medium of described third party's terminal.Third party's terminal described in the embodiment of the present invention sends call request from switching device shifter of conversing described in trend after can obtaining reading the information of described to be switched terminal the information needed, or sends call request to described call switching device shifter after the calling indicator that also can receive user.The present invention does not limit this.In addition, the call request that described call switching device shifter receives third party's terminal can be specifically the call request resolving to receive described third party's terminal to the dial signaling of described third party's terminal, and obtain the information that described call request comprises, the operation of the information that the request of aforementioned parsing signaling receipt of call also obtains wherein belongs to existing technological means, and the present invention does not repeat at this.
Step 102, described call switching device shifter determine the attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to described HLR, the telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling, described first call hand off signaling is used to indicate described HLR and determines moving exchanging center MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, carries the telephone number of described third party's terminal in described second call hand off signaling, described second call hand off signaling is used to indicate described MSC and sets up described third party's terminal according to the telephone number of described third party's terminal and be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
It should be noted that, the MSC of described MSC also namely belonging to described call distant terminal described first connection segment is replaced with described third party's terminal to be connected with the circuit of described MSC be also connected with described second connection segment after to set up the process that the circuit between described third party's terminal with described call opposite end is connected be complete within the time of Millisecond, therefore, the user that distant terminal of conversing is corresponding can not perceive current talking from described to be switched terminal switch to third party's terminal.In prior art, user obviously can perceive dropped calls, and the technical scheme that the embodiment of the present invention provides can switch by real time phone call, can not affect the call experience of user.
Further, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in the information of described to be switched terminal, also comprise in described call request: the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal;
Accordingly, described call switching device shifter is after the call request receiving third party's terminal, and described method also comprises:
Whether the service password of the described call switching device shifter checking telephone number of described to be switched terminal and the call service switchover of described to be switched terminal is correct; After being verified, perform step 102.
It should be noted that, when described third party's terminal reads the service password of the telephone number of to be switched terminal and the call service switchover of described to be switched terminal described in the information acquisition of described to be switched terminal by default communication mode, so described third party's terminal can also comprise the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in the call request sent to described call switching device shifter, described call switching device shifter can according to the database authentication of operator the service password of the telephone number of to be switched terminal and the call service switchover of described to be switched terminal whether correct, here the fail safe that one deck safety check can improve call service switchover is added, in addition, the service password that described third party's terminal obtains the call service switchover of described to be switched terminal is got by described default communication mode after described third party's terminal by described to be switched terminal, be not inputted by outside, can not be seen by others, the service password of the call service switchover of described to be switched terminal can not be known by the third party beyond operator network system, therefore, effectively can ensure that this call switches to be initiated by be switched terminal, more improve the fail safe of call service switchover.
A kind of call handover method that the embodiment of the present invention provides, when needs carry out call switching, to be switched terminal is near third party's terminal, described third party's terminal gets the information of described to be switched terminal by presetting communication mode, wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal, described third party's terminal sends call request to call switching device shifter, and described call request comprises: the telephone number of described third party's terminal and the telephone number of described call distant terminal, described call switching device shifter determines the HLR belonging to described call distant terminal according to the telephone number of described call distant terminal, described HLR is ordered to search MSC belonging to described call distant terminal, initiated the calling of third party's terminal by the described MSC of described HLR order to set up described MSC and to be connected with the circuit of third party's terminal and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.By the technical scheme that the embodiment of the present invention provides, can complete call in real time and switch in the process of double-talk, the user of the opposing party of call can not perceive and carry out call switching.
The embodiment of the present invention provides a kind of call switching device shifter 10, and as shown in Figure 2, this call switching device shifter 10 comprises:
Receiving element 11, for receiving the call request of third party's terminal, described call request comprises: the telephone number of third party's terminal and the telephone number of call distant terminal.
Processing unit 12, for determining the attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and sends the first call hand off signaling to described HLR, the telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling, described first call hand off signaling is used to indicate described HLR and determines moving exchanging center MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, carries the telephone number of described third party's terminal in described second call hand off signaling, described second call hand off signaling is used to indicate described MSC and sets up described third party's terminal according to the telephone number of described third party's terminal and be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
Further, the telephone number of the described call distant terminal that described call request comprises is when described to be switched terminal is near described third party's terminal, obtains after reading the information of described to be switched terminal by described third party's terminal by default communication mode; Wherein, the information of described to be switched terminal comprises the telephone number of described call distant terminal.Further, described default communication mode comprises: RFID communication, NFC, Bluetooth communication or infrared communication.
Further, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in the information of described to be switched terminal, also comprise in described call request: the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal;
Accordingly, as shown in Figure 3, described call switching device shifter 10 can also comprise:
Authentication unit 13, for reception described call request after according to database authentication the service password of the telephone number of to be switched terminal and the call service switchover of described to be switched terminal whether correct; After being verified, triggering described processing unit 12 and determine attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database and send the first call hand off signaling to described HLR.
The present embodiment is used for realizing above-mentioned each embodiment of the method, and in the present embodiment, the workflow of unit and operation principle are see the description in above-mentioned each embodiment of the method, do not repeat them here.
The one call switching device shifter that the embodiment of the present invention provides, when needs carry out call switching, to be switched terminal is near third party's terminal, described third party's terminal gets the information of described to be switched terminal by presetting communication mode, wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal, described third party's terminal sends call request to call switching device shifter, and described call request comprises: the telephone number of described third party's terminal and the telephone number of described call distant terminal, described call switching device shifter determines the HLR belonging to described call distant terminal according to the telephone number of described call distant terminal, described HLR is ordered to search MSC belonging to described call distant terminal, initiated the calling of third party's terminal by the described MSC of described HLR order to set up described MSC and to be connected with the circuit of third party's terminal and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.By the technical scheme that the embodiment of the present invention provides, can complete call in real time and switch in the process of double-talk, the user of the opposing party of call can not perceive and carry out call switching.
The embodiment of the present invention also provides a kind of terminal 20, and as shown in Figure 4, described terminal 20 comprises:
Acquiring unit 21, for when to be switched terminal and call distant terminal are being conversed and needing described call to be switched between described terminal and described call distant terminal, obtained the information of described to be switched terminal by default communication mode after, sending to calling unit 22; Wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal;
Described calling unit 22, for receive described to be switched terminal from described acquiring unit 21 information after send call request to above-mentioned call switching device shifter 10.
It should be noted that, terminal 20 can be fixed communication terminal also can be mobile communication terminal, above-mentioned acquiring unit 21 and calling unit 22 can be integrated in a processing module, this processing module can adopt the form of hardware to realize together with other module integrations in existing base or mobile terminal, links together after the mode of hardware also can be adopted separately to realize with other hardware modules in existing base or mobile terminal.
The embodiment of the present invention provides a kind of communication system, comprise: to be switched terminal, the attaching position register HLR of call distant terminal, third party's terminal, described call distant terminal, the moving exchanging center MSC belonging to described call distant terminal, call switching device shifter;
When described to be switched terminal and call distant terminal are being conversed and needing described call to be switched between described third party's terminal and described call distant terminal, described third party's terminal is obtaining the information of described to be switched terminal by presetting communication mode; Wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal;
Described third party's terminal sends call request to described call switching device shifter, and described call request comprises: the telephone number of described third party's terminal and the telephone number of described call distant terminal;
After described call switching device shifter receives described call request, determine the HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to described HLR; The telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling;
After described HLR receives described first call hand off signaling, determine MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, in described second call hand off signaling, carrying the telephone number of described third party's terminal;
After described MSC receives described second call hand off signaling, set up described third party's terminal according to the telephone number of described third party's terminal to be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
Further, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal and yet comprise the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in described call request in the information of described to be switched terminal
Accordingly, after described call switching device shifter receives described call request, determine the HLR of described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to the HLR of described call distant terminal, specifically can comprise:
After described call switching device shifter receives described call request, verify that whether the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal is correct, after being verified, described call switching device shifter is determined attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database and is sent the first call hand off signaling to described HLR.
Further, described default communication mode comprises:
Radio frequency discrimination RFID communication, wireless near field communication NFC, Bluetooth communication or infrared communication.
A kind of communication system that the embodiment of the present invention provides, when needs carry out call switching, to be switched terminal is near third party's terminal, described third party's terminal gets the information of described to be switched terminal by presetting communication mode, wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal, described third party's terminal sends call request to call switching device shifter, and described call request comprises: the telephone number of described third party's terminal and the telephone number of described call distant terminal, described call switching device shifter determines the HLR belonging to described call distant terminal according to the telephone number of described call distant terminal, described HLR searches the MSC belonging to described call distant terminal, described MSC initiates the calling of third party's terminal to set up described MSC and to be connected with the circuit of third party's terminal and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.By the technical scheme that the embodiment of the present invention provides, can complete call in real time and switch in the process of double-talk, the user of the opposing party of call can not perceive and carry out call switching.
In order to enable those skilled in the art more clearly understand technical scheme provided by the invention, below by specific embodiment, technical scheme provided by the invention is described in detail:
Embodiment one
The present embodiment introduces current talking in detail to be switched terminal switch to the process of third party's terminal, in the present embodiment, to be switched terminal is specially the mobile phone A in Fig. 5, third party's terminal is specially the base B in Fig. 5, default communication mode is specially RFID communication mode, call distant terminal is specially the mobile phone C in Fig. 5, as shown in Figure 5, in the present embodiment, during to be switched terminal (mobile phone A) is conversed with call distant terminal (mobile phone C), the circuit that mobile phone A occupies a fixed allocation with mobile phone C is connected A1, and the present embodiment comprises the following steps:
Step 1, base B off-hook.
Step 2, mobile phone A press close to the RFID card-reading apparatus of base B, and base B reads the information in mobile phone A.
Wherein, the information in mobile phone A comprises: the telephone number of the telephone number of mobile phone A, the call service switchover service password of mobile phone A and mobile phone C.
Step 3, base B dial the access code (being built in base B) of call switching device shifter, connect and are connected with the circuit of call switching device shifter.At this moment, establishing a bandwidth between base B with call switching device shifter is that the circuit of 64K is connected A2, the transmission telephone number of mobile phone A and the call service switchover service password of mobile phone A are verified, after being verified, base B sends the telephone number of mobile phone C to call switching device shifter, and the telephone number of base B.
It should be noted that, the telephone number of base B under normal circumstances can sending to call switching device shifter to during call switching device shifter dial-up connection by communication network automatically.
After step 4, call switching device shifter receive whole information needed by base B, ownership switch (can be generally tandem exchange's switch) to self sends signaling of taking out stitches, this ownership end office switch of taking out stitches signaling meeting approach base B is sent to base B step by step, performs A3: remove the circuit connection that A2 sets up.
Step 5, call switching device shifter, according to the database of the telephone number query operator of mobile phone C, find the HLR of mobile phone C, and send the first call hand off signaling to this HLR.The telephone number of base B and the telephone number of mobile phone C is at least carried in this first call hand off signaling signaling.
Step 6, this HLR receive call switching device shifter send first call hand off signaling after, find the MSC of the telephone number current home of mobile phone C, to this MSC send second call hand off signaling.The telephone number of base B and the telephone number of mobile phone C is at least carried in this signaling.
After step 7, this MSC receive the second call switching command, according to the telephone number of base B, initiate call request to base B, base B can this call request of automatic-answering back device, thus sets up A4.
After step 8, this MSC detect that A4 has set up, by the circuit switching relation between this MSC in A1 to the circuit segments (A1-1) and the circuit segments (A1-2) of this MSC to mobile phone C of mobile phone A, replace with the circuit switching relation of A4 and A1-2, thus form A5.From then on the moment, all voice that mobile phone C transmits, all will be sent on the receiver of base B, and the voice sent from the microphone of base B also all will be sent on the receiver of mobile phone C.
It should be noted that, can complete in the time operating in Millisecond of step 8, mobile phone C side can not perceive.
Step 9, this MSC send to mobile phone A signaling of taking out stitches, and switching equipment on the way segmentation can perform A6: the circuit removed in A1 between this MSC to mobile phone A connects, release circuit connection resource.
Step 10, this MSC notify this HLR, and call switching completes.
Step 11, this HLR notice call switching device shifter, call switching completes.
Finally, above-mentioned steps 1 be it should be noted that, be the situation of base for third party's terminal, start call after base B off-hook to switch, user is facilitated can directly to start to converse with mobile phone C with the microphone of base B after step 8 completes, if when not having step 1, in step 7, base B needs ringring prompting user to pick up the microphone of base B to set up A4, thus the microphone of base B can be used after step 8 completes to start to converse with mobile phone C.
Also be pointed out that, that the situation belonging to same operator for mobile phone C and base B introduces the technical scheme that the embodiment of the present invention provides in above-described embodiment, mobile phone C and base B is belonged to the situation of two different operators, the access code of what base B dialed the is call switching device shifter of oneself home-operator A, find that mobile phone C belongs to operator B's when local data base searched by the call switching device shifter of operator A, then the call switching device shifter of operator A can establish a connection with the call switching device shifter of operator B, and the step 5 sent first call hand off signaling sends to the call switching device shifter of operator B, now the call switching device shifter of operator B can find the HLR belonging to mobile phone C, and the first call hand off signaling in step 5 and satellite information are transmitted to this HLR, next this HLR continues to perform step 6.
Embodiment two
The present embodiment introduce in detail current talking to be switched terminal switch to third party's terminal after again by the process of third party's terminal to cubic terminal switch, in the present embodiment, to be switched terminal is specially the mobile phone A in Fig. 5, third party's terminal is specially the base B in Fig. 5, call distant terminal is specially the mobile phone C in Fig. 5, cubic terminal is specially the mobile phone D in Fig. 5, as shown in Figure 5, in the present embodiment, during base B converses with mobile phone C, the circuit that base B occupies a fixed allocation with mobile phone C is connected A5, and the present embodiment comprises the following steps:
Step 12, call switching device shifter send the signaling setting up mark of partly taking out stitches to the HLR belonging to mobile phone C.At least target base circuit number and distant terminal number is carried in this signaling.
Step 13, this HLR forward the signaling setting up mark of partly taking out stitches to the MSC belonging to mobile phone C.At least target base circuit number and distant terminal number is carried in this signaling.
Step 14, base B on-hook.On-hook signaling is sent to this MSC step by step, and this MSC detects and once set up corresponding " mark of partly taking out stitches ", so do not remove A8, and the circuit connecting relation namely between this MSC and call distant terminal.Although now A7 is finished, the circuit segments that namely A4 is corresponding all remove and release shared by resource.
Step 15, after base B on-hook, (circuit between base B to its ownership end office switch discharges, base B can re-establish circuit and connect), base B can get through the access code talking about switching device shifter by automatic poking, connect the connection with call switching device shifter, and detect base B during conversing, whether user once dialed by dial the character string sequence meeting pre-defined rule, such as " the telephone number ## of ## mobile phone D ", if had, the telephone number of current base B is sent to call switching device shifter, and the call service switchover service password of base B is verified, after being verified, send the telephone number of mobile phone C, and the telephone number of mobile phone D, if no, see step 15 '.
Step 16, call switching device shifter, send the first call hand off signaling to the HLR belonging to mobile phone C, carries the telephone number of mobile phone D and the telephone number with mobile phone C in this first call hand off signaling.
Step 17, this HLR, according to the first call hand off signaling from call switching device shifter received, if will converse switch mobile phone D, will then send the second call switching command, with reference to step 6 in embodiment one to the MSC belonging to mobile phone C.
If step 18, this MSC have received the second call switching command, then initiate call request to mobile phone D machine, and set up A9 after mobile phone D replys this call request.
Step 19, this MSC cancel the mark of partly taking out stitches that previous steps 13 is set up, then the corresponding relation setting up A9 and A8 forms A10, the now voice of mobile phone C side, has been sent to again on the receiver of mobile phone D.
It should be noted that, if step 18 does not set up A9 (such as mobile phone D does not reply the call request of the MSC that mobile phone C belongs to), in step 19, namely the voice communication of this MSC dismounting A8, mobile phone C side is interrupted.
If step 20 establishes A9, this MSC notifies that this HLR call switching completes.
It should be noted that, if step 18 does not set up A9, in step 20, this MSC notifies this HLR end of conversation, and the mark of partly taking out stitches previously set up is cancelled.
If step 21 establishes A9, this HLR notifies that call switching device shifter call switching completes.
It should be noted that, if step 18 does not set up A9, in step 21, this HLR notifies call switching device shifter end of conversation, and the mark of partly taking out stitches previously set up is cancelled.
Step 22, when mobile phone D on-hook, perform A11: circuit segments all in A10 is removed in the switching equipment segmentation of process on the way.
Step 22', when mobile phone C on-hook, perform A11: circuit segments all in A10 is removed in the switching equipment segmentation of process on the way.
It should be noted that, converse when being switched to mobile phone D from base B in above-described embodiment two, step 14, to step 17 and step 19, all can complete within the Millisecond time.But step 18 needs the A9 set up to be limited by the speed that mobile phone D replys this call request, if the user of mobile phone D does some preparations in advance, also can answer rapidly, and this is answered action and can complete in a short period of time, namely in prior prepared situation, answer action normally only can to complete by a button or the finger that slides, this time can enough shortly make the user of mobile phone C side imperceptible.
Embodiment three
The present embodiment is introduced to be switched terminal in detail and will be conversed after successful switch to third party's terminal, third party's hanging up terminal and call be not switched to again in cubic terminal, finally terminate the process of whole call, in the present embodiment, to be switched terminal is specially the mobile phone A in Fig. 5, third party's terminal is specially the base B in Fig. 5, call distant terminal is specially the mobile phone C in Fig. 5, cubic terminal is specially the mobile phone D in Fig. 5, as shown in Figure 5, the present embodiment comprises step 12 in embodiment two, 13,14 and following steps:
Step 15', after base B on-hook, (circuit between base to its ownership end office switch discharges, base B can re-establish circuit and connect), base B can get through the access code talking about switching device shifter by automatic poking, connect the connection with call switching device shifter, and detect base B during conversing, whether user once dialed by dial the character string sequence meeting pre-defined rule, such as " the telephone number ## of ## mobile phone D ", if the character string sequence meeting pre-defined rule do not detected, then send without follow-up handover operation signaling to call switching device shifter.
If step 16', call switching device shifter have received base B send without follow-up handover operation signaling, then to belonging to mobile phone C HLR send cancel partly take out stitches mark signaling.
Step 17', HLR receive the signaling forwarding cancelling mark of partly taking out stitches and remove A8 to the MSC belonging to mobile phone C, this MSC, and namely the voice communication of mobile phone C side is interrupted.
In addition, it is worth mentioning that, the step 14 in above-described embodiment two and embodiment three be all base B prior to mobile phone C on-hook, for the situation of mobile phone C prior to base B, perform following steps 14' and step 15 ".
If step 14' mobile phone C prior to base B on-hook, then performs A5', the circuit between mobile phone C with base B is connected A5 and can be performed by A5 switching equipment segmentation on the way, discharges the circuit resource that A5 takies.
Step 15 ", MSC belonging to mobile phone C cancels mark of partly taking out stitches, and notifies the HLR end of conversation belonging to mobile phone C, and informs that this HLR mark of partly taking out stitches is cancelled.Can notify call switching device shifter end of conversation after this HLR receives this notice, notice call switching device shifter mark of partly taking out stitches is cancelled.
Device embodiment described above is only schematic, and such as, the division of module, is only a kind of logic function and divides, and actual can have other dividing mode when realizing.Another point, the connection each other of shown or discussed module can be by some interfaces, can be electrical, machinery or other form.Described modules or can may not be and physically separates, and can be or may not be physical location.Some or all of module wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional module in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of modules comprises, also can two or more module integrations in a module.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form that hardware also can be adopted to add software function module realizes.
The above-mentioned integrated module realized with the form of SFU software functional unit, can be stored in a computer read/write memory medium.Above-mentioned software function module is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (Read-OnlyMemory, ROM), random access memory (RandomAccessMemory, RAM), magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.

Claims (12)

1. a call handover method, is characterized in that, comprising:
Receive the call request of third party's terminal, described call request comprises: the telephone number of third party's terminal and the telephone number of call distant terminal;
Determine the attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to described HLR; The telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling; Described first call hand off signaling is used to indicate described HLR and determines moving exchanging center MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, carries the telephone number of described third party's terminal in described second call hand off signaling;
Described second call hand off signaling is used to indicate described MSC and sets up described third party's terminal according to the telephone number of described third party's terminal and be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
2. method according to claim 1, it is characterized in that, the telephone number of the described call distant terminal that described call request comprises is when described to be switched terminal is near described third party's terminal, obtains after reading the information of described to be switched terminal by described third party's terminal by default communication mode; Wherein, the information of described to be switched terminal comprises the telephone number of described call distant terminal.
3. method according to claim 2, is characterized in that, described default communication mode comprises:
Radio frequency discrimination RFID communication, wireless near field communication NFC, Bluetooth communication or infrared communication.
4. the method according to claims 1 to 3 any one, it is characterized in that, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in the information of described to be switched terminal, also comprise in described call request: the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal;
Accordingly, after the call request of described reception third party terminal, described method also comprises:
Verify that whether the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal is correct;
After being verified, performing the described telephone number according to described call distant terminal and database and determine the attaching position register HLR of described call distant terminal and send the first call hand off signaling to described HLR.
5. a call switching device shifter, is characterized in that, comprising:
Receiving element, for receiving the call request of third party's terminal, described call request comprises: the telephone number of third party's terminal and the telephone number of call distant terminal;
Processing unit, for determining the attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and sends the first call hand off signaling to described HLR; The telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling; Described first call hand off signaling is used to indicate described HLR and determines moving exchanging center MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, carries the telephone number of described third party's terminal in described second call hand off signaling;
Described second call hand off signaling is used to indicate described MSC and sets up described third party's terminal according to the telephone number of described third party's terminal and be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
6. device according to claim 5, it is characterized in that, the telephone number of the described call distant terminal that described call request comprises is when described to be switched terminal is near described third party's terminal, obtains after reading the information of described to be switched terminal by described third party's terminal by default communication mode; Wherein, the information of described to be switched terminal comprises the telephone number of described call distant terminal.
7. device according to claim 6, is characterized in that, described default communication mode comprises:
Radio frequency discrimination RFID communication, wireless near field communication NFC, Bluetooth communication or infrared communication.
8. the device according to claim 5 to 7 any one, it is characterized in that, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in the information of described to be switched terminal, also comprise in described call request: the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal;
Accordingly, described device also comprises:
Authentication unit, for reception described call request after according to database authentication the service password of the telephone number of to be switched terminal and the call service switchover of described to be switched terminal whether correct; After being verified, triggering described processing unit and determine attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database and send the first call hand off signaling to described HLR.
9. a terminal, is characterized in that, comprising:
Acquiring unit, for when to be switched terminal and call distant terminal are being conversed and needing described call to be switched between described terminal and described call distant terminal, obtained the information of described to be switched terminal by default communication mode after, sending to calling unit; Wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal;
Described calling unit, for receive described to be switched terminal from described acquiring unit information after send call request to the call switching device shifter as described in claim 5 to 8 any one.
10. a communication system, is characterized in that, comprising:
To be switched terminal, the attaching position register HLR of call distant terminal, third party's terminal, described call distant terminal, the moving exchanging center MSC belonging to described call distant terminal, call switching device shifter;
When described to be switched terminal and call distant terminal are being conversed and needing described call to be switched between described third party's terminal and described call distant terminal, described third party's terminal is obtaining the information of described to be switched terminal by presetting communication mode; Wherein, the information of described to be switched terminal comprises: the telephone number of described call distant terminal;
Described third party's terminal sends call request to described call switching device shifter, and described call request comprises: the telephone number of described third party's terminal and the telephone number of described call distant terminal;
After described call switching device shifter receives described call request, determine the HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to described HLR; The telephone number of described third party's terminal and the telephone number of described call distant terminal is carried in described first call hand off signaling;
After described HLR receives described first call hand off signaling, determine MSC belonging to described call distant terminal according to the telephone number of described call distant terminal and send the second call hand off signaling to described MSC, in described second call hand off signaling, carrying the telephone number of described third party's terminal;
After described MSC receives described second call hand off signaling, set up described third party's terminal according to the telephone number of described third party's terminal to be connected with the circuit of described MSC, and the first connection segment in being connected by the circuit between described to be switched terminal with described call distant terminal replaces with described third party's terminal is connected with the circuit of described MSC, described third party's terminal is connected with the circuit of described MSC, and the circuit between described to be switched terminal with described call distant terminal be connected in the second connection segment carry out connecting the circuit set up between described third party's terminal with described call distant terminal and be connected to converse and switch, wherein, circuit between described to be switched terminal with described call distant terminal is connected and comprises described first connection segment and described second connection segment, described first connection segment is that described to be switched terminal is connected with the circuit between described MSC, and described second connection segment is that the circuit between described MSC with described call distant terminal is connected.
11. systems according to claim 10, is characterized in that, described default communication mode comprises:
Radio frequency discrimination RFID communication, wireless near field communication NFC, Bluetooth communication or infrared communication.
12. systems according to claim 10 or 11, it is characterized in that, when also comprising the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal and yet comprise the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal in described call request in the information of described to be switched terminal
Accordingly, after described call switching device shifter receives described call request, determine the HLR of described call distant terminal according to the telephone number of described call distant terminal and database, and send the first call hand off signaling to the HLR of described call distant terminal, specifically comprise:
After described call switching device shifter receives described call request, verify that whether the service password of the telephone number of described to be switched terminal and the call service switchover of described to be switched terminal is correct, after being verified, described call switching device shifter is determined attaching position register HLR belonging to described call distant terminal according to the telephone number of described call distant terminal and database and is sent the first call hand off signaling to described HLR.
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