CN105025471A - Called terminal, calling terminal, voice communication method and system - Google Patents
Called terminal, calling terminal, voice communication method and system Download PDFInfo
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- CN105025471A CN105025471A CN201410160782.5A CN201410160782A CN105025471A CN 105025471 A CN105025471 A CN 105025471A CN 201410160782 A CN201410160782 A CN 201410160782A CN 105025471 A CN105025471 A CN 105025471A
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Abstract
The invention provides a called terminal, a calling terminal, a voice communication method and system. During a voice communication process, the calling terminal and the called terminal negotiate to confirm voice communication in a voice encryption means. The calling terminal and the called terminal set up an end-to-end transmission business channel. Then the calling terminal and the called terminal make locally encrypted original voice data sent to each other through the set end-to-end transmission business channel. The calling terminal or the called terminal makes original voice data encrypted and further sends the encrypted voice data to the corresponding terminal through the end-to-end transmission business channel. Therefore, the voice communication between the calling terminal and the called terminal can be encrypted during the whole process. Data in wireless transmission and core network transmission processes are fully transmitted in an encrypted way. The voice communication safety is guaranteed. Meanwhile, modification of conventional wireless networks and core networks is not required. The method and system thus have the advantages of simple and convenient realization and low cost.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of terminal called, calling terminal, voice communication method and system.
Background technology
Along with continuous progress and the development of science and technology, mobile communication technology provides more and more important effect in the life of people.Mobile communication terminal is convenient for carrying with it, the feature of communication and rich and varied application at any time, becomes necessary article indispensable in people's life.But there is increasing event in the communication security of mobile terminal, safety communication becomes instantly increasingly serious problem.In existing mobile communication system, to the voice flow of civilian mobile terminal mostly not through encryption.As: GSM, WCDMA, CDMA2000 etc., its circuit-switched network is all non-encrypted phone design, and the mobile switching centre in mobile network is only responsible for Control on Communication and exchange of speech.Some mobile network is encrypted although can divide in wireless transmission means, but the safety problem do not solved completely in communication process, because there is no omnidistance encryption, namely not only need to prevent voice call monitored in wireless transmission part, also to avoid being intercepted and captured and monitoring when transmitting in the core network simultaneously, that is, need to carry out encryption end to end to the speech business of mobile terminal.
Summary of the invention
The main technical problem to be solved in the present invention is, provides a kind of terminal called, calling terminal, voice communication method and system, solves the problem that existing voice call can not realize omnidistance encryption.
For solving the problem, the invention provides a kind of voice communication method, comprising:
Calling terminal and terminal called confirm to adopt voice encryption mode to carry out voice communication;
Described calling terminal and described terminal called set up end-to-end transport service passage;
Described calling terminal by primary voice data after local cipher by described end-to-end transport service passage
Send to described terminal called; And be encrypted the speech data of rear transmission by described terminal called by described end-to-end transport service channel reception.
In an embodiment of the present invention, described end-to-end transport service passage is circuit-switched videophone data transmission channel or circuit switch data channel.
In order to solve the problem, present invention also offers another kind of voice communication method, comprising:
Terminal called and calling terminal confirm to adopt voice encryption mode to carry out voice communication;
Described terminal called and described calling terminal set up end-to-end transport service passage;
Described terminal called is encrypted the speech data of rear transmission by described calling terminal by described end-to-end transport service channel reception; And primary voice data is sent to described calling terminal by described end-to-end transport service passage after local cipher.
In an embodiment of the present invention, described end-to-end transport service passage is circuit-switched videophone data transmission channel or circuit switch data channel.
In order to solve the problem, present invention also offers another kind of voice communication method, comprising:
Confirm between calling terminal and terminal called to adopt voice encryption mode to carry out voice communication;
End-to-end transport service passage is set up between described calling terminal and described terminal called;
Described calling terminal by primary voice data after local cipher by described end-to-end transport service passage
Send to described terminal called; And be encrypted the speech data of rear transmission by described terminal called by described end-to-end transport service channel reception;
Described terminal called is encrypted the speech data of rear transmission by described calling terminal by described end-to-end transport service channel reception; And primary voice data is sent to described calling terminal by described end-to-end transport service passage after local cipher.
In an embodiment of the present invention, confirm between described calling terminal and terminal called that adopting voice encryption mode to carry out voice communication comprises:
Described calling terminal sends the connection setup solicited message comprising voice encryption mark to described terminal called;
Described calling terminal receives the connection setup request response of described terminal called feedback, judges whether described terminal called adopts voice encryption mode to carry out this time communication according to this connection setup request response.
In an embodiment of the present invention, when described calling terminal judges that this time communication of described terminal called does not adopt voice encryption mode, described calling terminal terminates this time to communicate or switch to ordinary voice communications mode and described terminal called to carry out voice communication.
In an embodiment of the present invention, described connection setup solicited message is call setup message, and described connection setup request response is ringback message.
In an embodiment of the present invention, described end-to-end transport service passage is circuit-switched videophone data transmission channel or circuit switch data channel.
In order to solve the problem, present invention also offers a kind of calling terminal, comprise first communication party formula and confirming that module, first passage set up module, the first encrypting module, the first sending module and the first receiver module;
Described first communication party formula confirms that module is used for confirming to adopt voice encryption mode to carry out voice communication with terminal called;
Described first passage sets up module for setting up end-to-end transport service passage with described terminal called;
Described first encrypting module is used for the primary voice data of described calling terminal to be encrypted;
Described first sending module is used for the speech data after by described first encrypting module encryption and sends to described terminal called by described end-to-end transport service passage;
Described first receiver module is used for the speech data being encrypted rear transmission by described end-to-end transport service channel reception by described terminal called.
In order to solve the problem, present invention also offers a kind of terminal called, comprise second communication method and confirming that module, second channel set up module, the second encrypting module, the second sending module and the second receiver module;
Described second communication method confirms that module is used for confirming to adopt voice encryption mode to carry out voice communication with calling terminal;
Described second channel sets up module for setting up end-to-end transport service passage with described calling terminal;
Described second encrypting module is used for the primary voice data of described terminal called to be encrypted;
Described second sending module is used for the speech data after by described second encrypting module encryption and sends to described calling terminal by described end-to-end transport service passage;
Described second receiver module is used for the speech data being encrypted rear transmission by described end-to-end transport service channel reception by described calling terminal.
In order to solve the problem, present invention also offers a kind of voice communication system, comprise calling terminal and terminal called, described calling terminal comprises first communication party formula and confirms that module, first passage set up module, the first encrypting module, the first sending module and the first receiver module; Described terminal called comprises second communication method confirmation module, second channel sets up module, the second encrypting module, the second sending module and the second receiver module;
Described first communication party formula confirms that module is used for confirming that module confirms to adopt voice encryption mode to carry out voice communication with described second communication method;
Described first passage is set up module and is set up end-to-end transport service passage for setting up module with described second channel;
Described first encrypting module is used for the primary voice data of described calling terminal to be encrypted;
Described first sending module is used for the speech data after by described first encrypting module encryption and sends to described second receiver module by described end-to-end transport service passage;
Described first receiver module is used for the speech data sent by described second sending module by described end-to-end transport service channel reception;
Described second encrypting module is used for the primary voice data of described terminal called to be encrypted;
Described second sending module is used for the speech data after by described second encrypting module encryption and sends to described first receiver module by described end-to-end transport service passage;
Described second receiver module is used for the speech data sent by described first sending module by described end-to-end transport service channel reception.
In an embodiment of the present invention, described end-to-end transport service passage is circuit-switched videophone data transmission channel or circuit switch data channel.
The invention has the beneficial effects as follows:
Terminal called provided by the invention, calling terminal, voice communication method and system, when carrying out voice call, after calling terminal and terminal called consult to confirm to adopt voice encryption mode to carry out voice communication, calling terminal and terminal called set up end-to-end transport service passage; Then primary voice data is sent to the terminal of opposite end by calling terminal and terminal called after local cipher by the end-to-end transport service passage set up.Visible, in invention, realize being encrypted primary voice data at calling terminal or terminal called this locality, and the speech data after encryption is directly sent to opposite end by end-to-end transport service passage, therefore the voice call whole process encryption between calling terminal and terminal called can be realized, comprising in wireless transmission and core network process is also whole encrypted transmission, ensure that the fail safe of voice call.Meanwhile, the scheme of the application does not need to change existing wireless network and core net, realize convenient, simple, and cost is low.
Accompanying drawing explanation
The voice communication method schematic flow sheet that Fig. 1 provides for the embodiment of the present invention one;
The schematic flow sheet of the confirmation communication mode process that Fig. 2 provides for the embodiment of the present invention one;
The voice communication system structural representation that Fig. 3 provides for the embodiment of the present invention two;
Fig. 4 is the structural representation of calling terminal in Fig. 3;
Fig. 5 is the structural representation of terminal called in Fig. 3;
The voice communication schematic flow sheet that Fig. 6 provides for the embodiment of the present invention two.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Embodiment one:
Shown in Figure 1, the voice communication method that the present embodiment provides comprises the following steps:
Step 101: confirm between calling terminal and terminal called to adopt voice encryption mode to carry out voice communication;
Step 102: calling terminal and terminal called set up end-to-end transport service passage, also namely transparent service channel;
Step 103: primary voice data is sent to the terminal of opposite end by calling terminal and terminal called after local cipher by end-to-end transport service passage; Namely primary voice data is sent to terminal called by end-to-end transport service passage by calling terminal after local cipher; And be encrypted the speech data of rear transmission by terminal called by end-to-end transport service channel reception; Terminal called is encrypted the speech data of rear transmission by calling terminal by end-to-end transport service channel reception; And primary voice data is sent to described calling terminal by end-to-end transport service passage after local cipher.
In the present embodiment, the end-to-end transport service passage set up between terminal called and calling terminal is not traditional C/S territory circuit switched voice passage, and referring to the service channel that speech data directly can be sent to opposite end, it is specially and can be circuit-switched videophone data transmission channel (CSVT service channel) or circuit switch data channel (CSD service channel); But should be understood that and be not limited in above-mentioned passage.
Visible, in the present embodiment, can realize being encrypted primary voice data at calling terminal or terminal called this locality, and the speech data after encryption is directly sent to opposite end by end-to-end transport service passage, therefore the voice call whole process encryption between calling terminal and terminal called can be realized, comprising in wireless transmission and core network process is also whole encrypted transmission, ensure that the fail safe of voice call.Meanwhile, also do not need to change existing wireless network and core net, realize convenient, simple, and cost is low.
In the present embodiment, calling terminal is when making a call to terminal called, and it can provide ordinary voice communications mode and voice encryption communication mode to carry out this time calling to user.When user selects ordinary voice communications mode, then the normal ordinary voice communications mode of main employing completes this time calling; When user selects voice encryption communication mode this time to call out, then calling terminal need confirm with terminal called, and whether support voice coded communication mode carries out this time calling to judge terminal called.In the present embodiment, the terminal called possessing voice encryption communication function also can provide ordinary voice communications mode and voice encryption communication mode to select for user to user; User can arrange in advance and for which contact person in address list allow to adopt voice encryption communication mode in terminal called, then all adopts ordinary voice communications mode for not having the stranger stored in other contact persons remaining or address list.Certainly, as long as also can arrange terminal called to possess voice encryption communication function, once calling terminal request adopts voice encryption communication mode to carry out this time calling, this terminal called all gives tacit consent to agreement.To sum up, in above-mentioned steps 101, calling terminal and terminal called confirm the process of communication mode as shown in Figure 2, and it comprises:
Step 201: calling terminal makes a call information, and this call information comprises provides ordinary voice communications mode and voice encryption communication mode two options to user; User is established to select voice encryption communication mode herein;
Step 202: calling terminal sends the connection setup solicited message comprising voice encryption mark to terminal called; Connection setup solicited message in the present embodiment specifically can adopt call setup message (SETUPmessage), and voice encryption mark is specifically by the User-user optimum configurations of call setup message; According to 3GPP TS24.008 specification: User-user, The information element isincluded in the calling mobile station to network direction when thecalling mobile station wants to pass user information to the calledremote user. can use as expansion field, is used for the information of peer user transmission needs interpolation.Concrete voice encryption mark can be a byte or multiple byte, meets the definition of User-user in 3GPP TS24.008 specification;
Step 203: after terminal called receives the connection setup solicited message of calling terminal transmission, judge in this connection setup solicited message, to comprise voice encryption mark, request response is set up to calling terminal feedback communication, within the message, when the coded communication of terminal called support voice, then comprise voice encryption mark; Otherwise it does not comprise voice encryption mark, or comprises the mark of not support voice coded communication;
In the present embodiment, connection setup request response specifically can be the ringback message (Alerting message) that terminal called feeds back to calling terminal; Voice encryption mark specifically can by the User-user optimum configurations of ringback message; According to 3GPP TS24.008 specification: User-user, Thisinformation element may be included when the called mobile stationwants to return information to the calling remote user. can use as expansion field, is used for the information of peer user transmission needs interpolation.Concrete voice encryption mark can be a byte or multiple byte, as long as meet the definition of User-user in 3GPP TS24.008 specification;
Whether step 204: after calling terminal receives the connection setup request response of terminal called feedback, comprise voice encryption mark according to this connection setup request response and judge whether terminal called adopts voice encryption mode to carry out this time call; In this step, in the connection setup request response of terminal called feedback, comprise voice encryption mark, then show that terminal called support this time call adopts voice encryption mark, go to step 205; Otherwise, show that terminal called this time communication does not adopt voice encryption mode, go to step 206;
Step 205: calling terminal and terminal called set up end-to-end transport service passage.
Step 206: calling terminal terminates this time to communicate or switch to ordinary voice communications mode and terminal called to carry out voice communication.
In the present embodiment, the Encrypt and Decrypt algorithm that calling terminal and terminal called adopt specifically can be stored in this locality, but directly calls when using.Also can be stored in other local, call again when needing.Below to be stored in local being described: after calling terminal and terminal called establish end-to-end transport service passage, the cryptographic algorithm that the raw tone stream that calling terminal is sent stores according to this locality after speech coding is encrypted, form encrypted word voice messaging, then send to terminal called.After terminal called receives this encrypted word voice messaging, adopt the local decipherment algorithm corresponding with the cryptographic algorithm that caller adopts stored to be decrypted process to it, then decode, restore raw tone stream.Corresponding, the process that terminal called is encrypted and calling terminal is decrypted and said process are substantially identical.
Embodiment two:
Present embodiments provide a kind of voice communication system, shown in Figure 3, comprise calling terminal and terminal called; Wherein, refer to shown in Fig. 4 and Fig. 5, calling terminal comprises first communication party formula and confirms that module, first passage set up module, the first encrypting module, the first deciphering module, the first sending module and the first receiver module; Terminal called comprises second communication method confirmation module, second channel sets up module, the second encrypting module, the second deciphering module, the second sending module and the second receiver module; Wherein:
First communication party formula confirms that module is used for confirming that module confirms to adopt voice encryption mode to carry out voice communication with second communication method; Its concrete confirmation process is shown in Figure 2, does not repeat them here;
First passage is set up module and is set up end-to-end transport service passage for setting up module with second channel; End-to-end transport service passage in the present embodiment is not traditional C/S territory circuit switched voice passage, and referring to the service channel that speech data directly can be sent to opposite end, it is specially and can be circuit-switched videophone data transmission channel (CSVT service channel) or circuit switch data channel (CSD service channel); But should be understood that and be not limited in above-mentioned passage;
First encrypting module is used for the primary voice data of calling terminal to be encrypted, and its cryptographic algorithm that calling terminal this locality specifically can be adopted to store is encrypted primary voice data;
First sending module is used for the speech data after by the first encrypting module encryption sends to terminal called the second receiver module by the end-to-end transport service passage set up;
First receiver module is used for the speech data that the end-to-end transport service channel reception by setting up is sent by the second sending module;
First deciphering module is used for the speech data that the first receiver module receives to be decrypted process, and it specifically can adopt the decipherment algorithm of calling terminal this locality to be decrypted it, and the cryptographic algorithm adopted when this decipherment algorithm is encrypted with terminal called is corresponding;
Second encrypting module is used for the primary voice data of terminal called to be encrypted, and its cryptographic algorithm that calling terminal this locality specifically can be adopted to store is encrypted primary voice data;
Second sending module is used for the speech data after by the second encrypting module encryption sends to calling terminal the first receiver module by end-to-end transport service passage;
Second receiver module be used for by end-to-end transport service channel reception by calling terminal first sending module send through adding overstocked speech data;
Second deciphering module is used for the speech data that the second receiver module receives to be decrypted process, and it specifically can adopt the decipherment algorithm of terminal called this locality to be decrypted it, and the cryptographic algorithm adopted when this decipherment algorithm is encrypted with calling terminal is corresponding.
In the present embodiment, the first communication party formula that calling terminal comprises confirms that module can be used for providing ordinary voice communications mode and voice encryption communication mode to carry out this time calling to user, selects for user.In the present embodiment, the second communication method of terminal called confirms that module also can be used for providing ordinary voice communications mode and voice encryption communication mode to select for user to user; User can arrange in advance and for which contact person in address list allow to adopt voice encryption communication mode in terminal called, then all adopts ordinary voice communications mode for not having the stranger stored in other contact persons remaining or address list.Certainly, as long as also can arrange terminal called to possess voice encryption communication function, once calling terminal request adopts voice encryption communication mode to carry out this time calling, this terminal called all gives tacit consent to agreement.Voice communication system shown in Fig. 3 by process shown in Figure 6, it comprises:
Step 601: the information that calling terminal makes a call comprises: ordinary voice communications mode and voice encryption communication mode two options, user selects to initiate voice encryption communication mode, i.e. encrypted word calling;
Step 602: calling terminal User-user parameter of SETUP message in call setup message is set up voice encryption mark;
Step 603: terminal called User-user parameter of Alerting message in ringback message is set up voice encryption mark;
Step 604: calling terminal and terminal called both sides support encrypted speech, sets up end-to-end transport service passage; End-to-end transport service passage is different from traditional C/S territory circuit switched voice passage, but the service channels such as CSVT or CSD;
Step 605: the stream of voice information transmitting encryption and decryption between calling terminal and terminal called;
The raw tone stream that wherein side's terminal sends is encrypted according to built-in cryptographic algorithm after speech coding, forms encrypted word voice messaging; The encrypted word voice messaging that the opposing party's terminal receives, carries out the deciphering of equal built-in decipherment algorithm, and decoding, restores raw tone stream.
Visible, scheme provided by the invention can realize being encrypted primary voice data at calling terminal or terminal called this locality, and the speech data after encryption is directly sent to opposite end by end-to-end transport service passage, therefore the voice call whole process encryption between calling terminal and terminal called can be realized, comprising in wireless transmission and core network process is also whole encrypted transmission, ensure that the fail safe of voice call.Meanwhile, also do not need to change existing wireless network and core net, realize convenient, simple, and cost is low.
Above embodiment only in order to technical scheme of the present invention and unrestricted to be described, only with reference to preferred embodiment to invention has been detailed description.Those of ordinary skill in the art should be appreciated that and can modify to technical scheme of the present invention or equivalent replacement, and does not depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (13)
1. a voice communication method, is characterized in that comprising:
Calling terminal and terminal called confirm to adopt voice encryption mode to carry out voice communication;
Described calling terminal and described terminal called set up end-to-end transport service passage;
Primary voice data is sent to described terminal called by described end-to-end transport service passage by described calling terminal after local cipher; And be encrypted the speech data of rear transmission by described terminal called by described end-to-end transport service channel reception.
2. voice communication method as claimed in claim 1, it is characterized in that, described end-to-end transport service passage is circuit-switched videophone data transmission channel or circuit switch data channel.
3. a voice communication method, is characterized in that comprising:
Terminal called and calling terminal confirm to adopt voice encryption mode to carry out voice communication;
Described terminal called and described calling terminal set up end-to-end transport service passage;
Described terminal called is encrypted the speech data of rear transmission by described calling terminal by described end-to-end transport service channel reception; And primary voice data is sent to described calling terminal by described end-to-end transport service passage after local cipher.
4. voice communication method as claimed in claim 3, it is characterized in that, described end-to-end transport service passage is circuit-switched videophone data transmission channel or circuit switch data channel.
5. a voice communication method, is characterized in that comprising:
Confirm between calling terminal and terminal called to adopt voice encryption mode to carry out voice communication;
End-to-end transport service passage is set up between described calling terminal and described terminal called;
Primary voice data is sent to described terminal called by described end-to-end transport service passage by described calling terminal after local cipher; And be encrypted the speech data of rear transmission by described terminal called by described end-to-end transport service channel reception;
Described terminal called is encrypted the speech data of rear transmission by described calling terminal by described end-to-end transport service channel reception; And primary voice data is sent to described calling terminal by described end-to-end transport service passage after local cipher.
6. voice communication method as claimed in claim 5, is characterized in that, confirms that adopting voice encryption mode to carry out voice communication comprises between described calling terminal and terminal called:
Described calling terminal sends the connection setup solicited message comprising voice encryption mark to described terminal called;
Described calling terminal receives the connection setup request response of described terminal called feedback, judges whether described terminal called adopts voice encryption mode to carry out this time communication according to this connection setup request response.
7. voice communication method as claimed in claim 6, it is characterized in that, when described calling terminal judges that this time communication of described terminal called does not adopt voice encryption mode, described calling terminal terminates this time to communicate or switch to ordinary voice communications mode and described terminal called to carry out voice communication.
8. voice communication method as claimed in claim 6, it is characterized in that, described connection setup solicited message is call setup message, and described connection setup request response is ringback message.
9. the voice communication method as described in any one of claim 5-8, is characterized in that, described end-to-end transport service passage is circuit-switched videophone data transmission channel or circuit switch data channel.
10. a calling terminal, is characterized in that comprising that first communication party formula confirms module, first passage sets up module, the first encrypting module, the first sending module and the first receiver module;
Described first communication party formula confirms that module is used for confirming to adopt voice encryption mode to carry out voice communication with terminal called;
Described first passage sets up module for setting up end-to-end transport service passage with described terminal called;
Described first encrypting module is used for the primary voice data of described calling terminal to be encrypted;
Described first sending module is used for the speech data after by described first encrypting module encryption and sends to described terminal called by described end-to-end transport service passage;
Described first receiver module is used for the speech data being encrypted rear transmission by described end-to-end transport service channel reception by described terminal called.
11. 1 kinds of terminal calleds, is characterized in that comprising that second communication method confirms module, second channel sets up module, the second encrypting module, the second sending module and the second receiver module;
Described second communication method confirms that module is used for confirming to adopt voice encryption mode to carry out voice communication with calling terminal;
Described second channel sets up module for setting up end-to-end transport service passage with described calling terminal;
Described second encrypting module is used for the primary voice data of described terminal called to be encrypted;
Described second sending module is used for the speech data after by described second encrypting module encryption and sends to described calling terminal by described end-to-end transport service passage;
Described second receiver module is used for the speech data being encrypted rear transmission by described end-to-end transport service channel reception by described calling terminal.
12. 1 kinds of voice communication systems, is characterized in that comprising calling terminal and terminal called, and described calling terminal comprises first communication party formula confirmation module, first passage sets up module, the first encrypting module, the first sending module and the first receiver module; Described terminal called comprises second communication method confirmation module, second channel sets up module, the second encrypting module, the second sending module and the second receiver module;
Described first communication party formula confirms that module is used for confirming that module confirms to adopt voice encryption mode to carry out voice communication with described second communication method;
Described first passage is set up module and is set up end-to-end transport service passage for setting up module with described second channel;
Described first encrypting module is used for the primary voice data of described calling terminal to be encrypted;
Described first sending module is used for the speech data after by described first encrypting module encryption and sends to described second receiver module by described end-to-end transport service passage;
Described first receiver module is used for the speech data sent by described second sending module by described end-to-end transport service channel reception;
Described second encrypting module is used for the primary voice data of described terminal called to be encrypted;
Described second sending module is used for the speech data after by described second encrypting module encryption and sends to described first receiver module by described end-to-end transport service passage;
Described second receiver module is used for the speech data sent by described first sending module by described end-to-end transport service channel reception.
13. communication systems as claimed in claim 12, is characterized in that, described end-to-end transport service passage is circuit-switched videophone data transmission channel or circuit switch data channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410160782.5A CN105025471A (en) | 2014-04-21 | 2014-04-21 | Called terminal, calling terminal, voice communication method and system |
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| CN201410160782.5A CN105025471A (en) | 2014-04-21 | 2014-04-21 | Called terminal, calling terminal, voice communication method and system |
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| CN102510768A (en) * | 2011-12-21 | 2012-06-20 | 华为技术有限公司 | Method and device supporting encryption communication |
| WO2013110253A1 (en) * | 2011-12-23 | 2013-08-01 | Appbyyou Gmbh | Method for setting up an encrypted connection between two communication appliances following prior key interchange via a shorthaul connection |
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| CN106302402A (en) * | 2016-07-29 | 2017-01-04 | 深圳市金立通信设备有限公司 | A kind of communication type switching method and terminal |
| CN107302619A (en) * | 2017-07-26 | 2017-10-27 | 北京珠穆朗玛移动通信有限公司 | Call method, mobile terminal and storage medium based on fingerprint |
| CN109561224A (en) * | 2017-09-27 | 2019-04-02 | 中国移动通信有限公司研究院 | A kind of call handling method and call terminal |
| CN109561224B (en) * | 2017-09-27 | 2020-11-06 | 中国移动通信有限公司研究院 | Call processing method and call terminal |
| CN113395245A (en) * | 2020-03-13 | 2021-09-14 | 昆山恒禾隆智能化系统有限公司 | Internet of things safety system and method based on information encryption |
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