CN105611516A - Telephone calling system and telephone calling method - Google Patents
Telephone calling system and telephone calling method Download PDFInfo
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- CN105611516A CN105611516A CN201610137162.9A CN201610137162A CN105611516A CN 105611516 A CN105611516 A CN 105611516A CN 201610137162 A CN201610137162 A CN 201610137162A CN 105611516 A CN105611516 A CN 105611516A
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- telephony gateway
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/18—Selecting a network or a communication service
Abstract
The invention discloses a telephone calling system and a telephone calling method; the telephone calling system is provided with a telephone gateway between a terminal device and a PSTN (Public Switched Telephone Network) telephone of a called number. Through arranging multiple calling channels and calling manners between the terminal device and the telephone gateway, the method enables that the terminal device can choose the appropriate calling manner according to a self located network environment, and simultaneously the connection between the telephone gateway and the called number can be kept, thereby basically achieving the transparency to a called party; and through choosing different appropriate calling manners, not only can the telephone charges be saved, but also the communication quality can be improved.
Description
Technical field
The present invention relates to a kind of wireless communication technique, especially a kind of telephone call system and call sideMethod.
Background technology
In recent years, mobile operator has accepted the pattern that flow is managed, and various OTT (cross operatorBased on the application of open the Internet) networking telephone is able to flourish. The networking telephone had 20 years withOn history, product form is also extremely abundant, has completely based on IP (InternetProtocol, procotol)Be applied to application, also have IP to PSTN (PublicSwitchedTelephoneNetwork, public friendshipChange telephone network) application dial phone number, or PSTN is to IP network, phone dials into supportThe application of virtual phone number, they are applicable to respectively different application scenarios.
But OTT business still depends on data network, the data network of mobile operator and mobile phoneThe covering of network is not quite similar, even WiFi network is also likely unstable, and the call matter of the networking telephoneAmount also can not get ensureing.
In fact, telephone network and data network have complementarity in many cases. When a kind of networkWhen bad, the benefit that is switched to the better network of condition is apparent. But pstn telephone network and IP dataNetwork is complete two heterogeneous class networks, does not occur simultaneously completely at protocol layer, and the two is merged to existenceDifficulty.
Summary of the invention
Main purpose of the present invention is to provide a kind of telephone call system and phone call method, Ke YigenSelect suitable method of calling according to the residing network environment of terminal device self, be both conducive to save communicationThis, can obtain again gratifying speech quality.
For this reason, the embodiment of the present invention provides a kind of phone call method, comprising:
Terminal device is selected suitable method of calling according to self residing network environment, makes terminal deviceAnd between telephony gateway, set up phone and be connected, and send called number to telephony gateway;
Between pstn telephone corresponding to telephony gateway and called number, setting up phone connects;
By telephony gateway bridge joint two-way phone, between pstn telephone corresponding to terminal device and called numberCarry out voice call.
Optionally, described method of calling comprises that calling network, local call, clawback call out one wherein.
Optionally, in the time that terminal device is called out called number, connect and be connected with phone according to current networkQuality, select the most suitable dial mode.
Optionally, in communication process, can if there is speech quality decline and another kind of method of callingUsed time, preserve the connection between telephony gateway and callee, dynamically switching terminal equipment and telephony gateway itBetween method of calling.
Optionally, connect the quality being connected with phone according to current network, to ascending voice passage and underThe voice data transmission mode that lang sound channel selecting is different.
Optionally, also comprise: utilize concurrent uplink or the downlink transfer of carrying out of multichannel.
Optionally, the concrete steps of described calling network comprise:
Between terminal device and telephony gateway, set up network and connect, utilize this network to transmit calling number and quiltCall out the numbers code to telephony gateway, completing user certification;
Telephony gateway is called out pstn telephone corresponding to called number;
Between terminal device and telephony gateway, set up speech data and connect, simultaneously by telephony gateway be relayed to byThe pstn telephone of the code correspondence of calling out the numbers, the pstn telephone that terminal device is corresponding with called number carries out voice and leads toWords.
Optionally, the concrete steps of described local call comprise:
Number is dialled in this locality optimum in terminal device called telephone gateway, and called number is sent to electricityPhone network closes;
Telephony gateway is called out pstn telephone corresponding to called number;
Between terminal device and telephony gateway, set up speech data and connect, simultaneously by telephony gateway be relayed to byThe pstn telephone of the code correspondence of calling out the numbers, the pstn telephone that terminal device is corresponding with called number carries out voice and leads toWords.
Optionally, before local call is conversed, and terminal device and telephony gateway exist network to connectWhile connecing, initialize, described initialized step comprises:
Terminal device carries out account certification at telephony gateway;
By calling number corresponding terminal device, toll free number information is sent to telephony gateway;
Telephony gateway obtains optimum basis from toll free number information according to the calling number of terminal deviceDial in number.
Optionally, the concrete steps of described clawback calling comprise:
Terminal device sends phone request to telephony gateway, and by calling number corresponding terminal device, quiltThe code of calling out the numbers is sent to telephony gateway;
Telephony gateway by PSTN Access Service Provider calling terminal equipment and called number corresponding PSTNPhone;
By telephony gateway bridge joint two-way phone, between terminal device and called number, carry out voice call.
Optionally, described terminal device comprises phone module and/or mixed-media network modules mixed-media, and phone module passes through PSTNAccess Service Provider sets up phone with telephony gateway and is connected, and mixed-media network modules mixed-media is set up electricity by network and telephony gatewayWords connect.
The present invention also provides a kind of telephone call system, comprising: terminal device, telephony gateway, calledThe pstn telephone that number is corresponding;
Terminal device is selected suitable method of calling according to self residing network environment, makes terminal deviceAnd between telephony gateway, set up phone and be connected, and send called number to telephony gateway;
Between pstn telephone corresponding to telephony gateway and called number, setting up phone connects;
Telephony gateway bridge joint two-way phone, carries out between pstn telephone corresponding to terminal device and called numberVoice call.
Optionally, described method of calling comprises that calling network, local call, clawback call out one wherein.
Optionally, connect the quality being connected with phone according to current network, to ascending voice passage and underThe voice data transmission mode that lang sound channel selecting is different.
Optionally, also comprise: utilize concurrent uplink or the downlink transfer of carrying out of multichannel.
Optionally, described terminal device comprises phone module and/or mixed-media network modules mixed-media, and phone module passes through PSTNAccess Service Provider sets up phone with telephony gateway and is connected, and mixed-media network modules mixed-media is set up electricity by network and telephony gatewayWords connect.
Optionally, in communication process, can if there is speech quality decline and another kind of method of callingUsed time, preserve the connection between telephony gateway and callee, dynamically switching terminal equipment and telephony gateway itBetween method of calling.
Compared with prior art, the present invention at least has following technique effect:
The present invention arranges a telephony gateway between terminal device and the pstn telephone of called number, passes throughMultiple calling passage and method of calling are set between terminal device and telephony gateway, allow the terminal device can rootSelect suitable method of calling according to self residing network environment, can keep telephony gateway and called simultaneouslyConnection between number, owing to only reconnecting between terminal device and telephony gateway, called number pairThe pstn telephone of answering does not need to reconnect, and callee is perception less than, base to the change of method of calling substantiallyInstinct is accomplished callee transparent, and by selecting different suitable method of callings, can not only save electricityTelephone expenses use, can also improve speech quality.
Brief description of the drawings
Fig. 1 is the structural representation of the telephone call system of the embodiment of the present invention;
Fig. 2 is the schematic flow sheet of the phone call method of the embodiment of the present invention;
Fig. 3 is the schematic flow sheet of the calling network mode of the embodiment of the present invention;
Fig. 4 is the schematic flow sheet of the local call mode of the embodiment of the present invention;
Fig. 5 is the schematic flow sheet of the clawback method of calling of the embodiment of the present invention.
Detailed description of the invention
A lot of details are set forth in the following description so that fully understand the present invention. But thisBright can enforcement to be much different from alternate manner described here, those skilled in the art can be notRun counter in the situation of intension of the present invention and do similar popularization, therefore the present invention is not subject to following public concrete enforcementThe restriction of example.
First the embodiment of the present invention provides a kind of telephone call system, please refer to Fig. 1, comprising: terminal is establishedStandby 10, telephony gateway 20, PSTN Access Service Provider 30, the pstn telephone 40 that called number is corresponding;
Terminal device 10 is selected suitable method of calling according to self residing network environment, and terminal is establishedStandby 10 and telephony gateway 20 between set up phone and be connected, and send called number to telephony gateway 20;
Telephony gateway 20 is by between PSTN Access Service Provider 30 and pstn telephone 40 corresponding to called numberSetting up phone connects;
Telephony gateway 20 bridge joint two-way phones, terminal device 10 pstn telephone corresponding with called number 40 itBetween carry out voice call.
Described terminal device 10 can be smart mobile phone, can be also panel computer, intelligent automobile or canWearing equipment etc. possesses arbitrarily the equipment of network communications capability.
In the present embodiment, described terminal device 10 has phone module and mixed-media network modules mixed-media, described phone mouldPiece comprises SIM, MicroSIM card or virtual SIM card etc., and user can directly utilize phone module to exhaleBe other users, described mixed-media network modules mixed-media is the built-in terminal software of terminal device 10, utilizes described terminal softPart dials network telephone, and described terminal software can also manipulate phone module, also can use network to connectAnd between telephony gateway, communicating transmission relevant control information, control information includes, but are not limited to terminalThe telephone number (calling number) of equipment, pstn telephone number (called number), authentication information, local callNumber basis etc. In other embodiments, also can only have mixed-media network modules mixed-media, terminal device 10 does not haveSIM, only realizes the networking telephone by the terminal software of terminal device inside.
Utilize described phone module, terminal device 10 by PSTN Access Service Provider and telephony gateway with standardSIP/RTP agreement communicates, and sets up phone and connects, and specifically comprises: dial terminal device from telephony gatewayNumber and terminal device call two kinds of modes of number of gateway.
Utilize described mixed-media network modules mixed-media, the Internet network that depends between terminal device 10 and telephony gateway 20,The networks such as local net network connect, and terminal device 10 can access Internet in several ways,WiFi, 3G/4G or other internetwork connection modes. Between terminal device and telephony gateway, can use markAccurate Session Initiation Protocol, also can use privately owned communication protocol.
Because pstn telephone network and IP data network are two heterogeneous class networks completely, complete at protocol layerNot do not occur simultaneously, directly the two is merged and be also switched in real time the better network of condition and have difficulties.
The present invention is arranged on terminal device 10 and pstn telephone corresponding to called number by telephony gateway 20Between 40, telephony gateway plays the function served as bridge between terminal device and pstn telephone, the conditions of support and languageThe bi-directional of sound data, can, in the process of telephone relation, decline if there is speech quality simultaneouslyAnd when another kind of method of calling is available, can keep the connection between telephony gateway and called number, movingCommunication mode between state switching terminal equipment 10 and telephony gateway 20, due to only at terminal device and phoneBetween gateway, reconnect, the pstn telephone that called number is corresponding does not need to reconnect, and callee is to MPTYThe change of formula be perception substantially less than, substantially accomplish callee transparent.
Based on above-mentioned telephone call system, the embodiment of the present invention also provides a kind of phone call method, pleaseWith reference to figure 2, comprising:
Step S101, terminal device is selected suitable method of calling according to self residing network environment, makesSet up phone between terminal device and telephony gateway and be connected, and send called number to telephony gateway;
Step S102, sets up phone and connects between pstn telephone corresponding to telephony gateway and called number;
Step S103, by telephony gateway bridge joint two-way phone, terminal device is corresponding with called numberBetween pstn telephone, carry out voice call.
Concrete, described method of calling is that calling network, local call, clawback are called out one wherein.
In the time that described method of calling is calling network, concrete step please refer to Fig. 3, comprising:
Step S201, sets up network and connects between terminal device and telephony gateway, utilize this network to transmit mainCall out the numbers code and called number to telephony gateway, completing user certification;
Step S202, telephony gateway is called out pstn telephone corresponding to called number;
Step S203, sets up speech data and connects, simultaneously by telephone network between terminal device and telephony gatewayPass is relayed to the pstn telephone that called number is corresponding, and the pstn telephone that terminal device is corresponding with called number entersRow voice call.
Described calling network be applicable to current network connect relatively good, when mass ratio that phone connects is better,Between terminal device and telephony gateway, can directly carry out speech data connection, telephone network by mixed-media network modules mixed-mediaClose between pstn telephone corresponding to called number and connect by PSTN Access Service Provider, due to the networking telephoneExpense lower than the expense of pstn telephone, can reduce call cost.
Between terminal device and telephony gateway, set up network and connect, utilize this network transmit calling number andCalled number is to telephony gateway, and completing user authenticates, and according to authentication information, telephony gateway starts managementFunctional module, carries out the operation such as charging, daily record renewal to this call.
Between terminal device and telephony gateway, set up speech data and connect, obtain after called number electricity simultaneouslyPstn telephone corresponding to words gateway call called number, utilizes telephony gateway bridge joint two-way phone, makes endThe pstn telephone that end equipment is corresponding with called number carries out voice call.
In the time that described method of calling is local call, local call need to be combined with the electricity on terminal deviceWords module and mixed-media network modules mixed-media.
In the time that terminal device has network and connects, and between telephony gateway, set up network and is connected, carry out initiallyChange. Described initialized concrete steps comprise:
Terminal device carries out account certification at telephony gateway, and both sides consult to produce communication token;
Calling number corresponding terminal device, toll free number information are sent to telephony gateway, described inToll free number information comprises the toll free number basis that contains toll free number, to local call numberCode carries out the information such as the index number of index, is convenient to telephony gateway and obtains optimum toll free number.
Described local number is to come according to the ownership place of the area code of telephone number on terminal device or phone numberDetermine to select, can preferentially select the local number of same area code or ownership place, if can not select same area codeOr the local number of ownership place, select the local number that closes on area code.
Telephony gateway obtains optimum basis from toll free number information according to the calling number of terminal deviceDial in number.
Because local call mode is that number is dialled in this locality that terminal device is directly dialled in telephony gateway, selectA telephony quality number better and that rate is lower is particularly important. By selecting in advance an optimum basisDial in number, can ensure speech quality, can reduce again cost of the phone call.
Described initialization step relies on network and connects, can be disposable complete in the time that terminal device has network to connectBecome, also can be in the time having network regular update, can also before calling, upgrade.
In the present embodiment, dial in after number when telephony gateway obtains optimum this locality, also comprise: will beExcellent this locality is dialled in number and is turned back to terminal device and store, described in optimum this locality number of dialling in of returningCode can be one, can be also multiple, completes final certification. Between follow-up terminal device and gatewayCommunication be all to realize alternately by DTMF, and encode and can reduce mutual data volume by index.
Complete after described initialization step, the concrete steps of local call please refer to Fig. 4, comprising:
Step S301, number is dialled in this locality optimum in terminal device called telephone gateway, and by called numberCode is sent to telephony gateway;
Step S302, telephony gateway is called out pstn telephone corresponding to called number;
Step S303, sets up speech data and connects, simultaneously by telephone network between terminal device and telephony gatewayPass is relayed to the pstn telephone that called number is corresponding, and the pstn telephone that terminal device is corresponding with called number entersRow voice call.
Concrete, the terminal software control phone module of terminal device is called out optimum this locality and is dialled in number,At the beginning of phone module uses DTMF (DualToneMultiFrequency, dual-tone multifrequency) signal to incite somebody to action simultaneouslyThe information such as calling number, called number corresponding to communication token, terminal device that beginningization generates sends to electricityPhone network closes, and completes certification.
Telephony gateway finds user profile by calling number or the authentication information of terminal phone, is convenient toLog and charging, simultaneously according to authentication information start management function module (such as charging, daily record etc.Deng).
Terminal device can, by using dtmf signal that called number is directly sent to telephony gateway, also canIndirectly to send to telephony gateway, the index number of called number in yellow pages is to telephony gateway.If index number can be translated as called number in telephony gateway.
In other embodiments, have network connect in the situation that, terminal device start local call itInitialization of front execution, can encode the information such as calling number, called number when initialization, buildsLithol draws, and this index information can be preserved at telephony gateway always. When terminal device find calling number andCalled number has had in the situation of index, just only need to index number be passed to by DTMF or networkTelephony gateway, telephony gateway can find corresponding calling number and called number information according to index number,Using described calling number as going electricity to show number, the data volume of DTMF transmission is few, and the response time is short, nothingThe user that needing user to get involved can provide best experiences. According to the called number obtaining, telephony gateway is logicalCross PSTN Access Service Provider and dial called number, the caller identification of called number makes the master that terminal device is correspondingThe code of calling out the numbers, and bridge joint two-way phone (terminal device+telephony gateway, telephony gateway+called number),Make to realize voice call between pstn telephone that terminal device and called number are corresponding.
Initialize because local call only needs to utilize in advance network, after completing initialization, removeNeed to upgrade time, no longer need the network of terminal device to connect, be applicable to network and connect the feelings that have some setbacksCondition. Adopt optimum this locality to dial in number simultaneously and dial, can reduce telephone charge and use.
In other embodiments, before carrying out local call, also need the position that judges that terminal device is currentPut, judge that by the information such as IP address, GPS position of terminal device whether this terminal device is really in unrestrainedFree state, roam under international roaming state particularly, likely do not exist rate lower dial in number,It is inapplicable local call.
In further embodiments, although be not sufficient in the condition that possesses the connection of network connection networkEnsure when speech quality, and while also not existing an applicable this locality to dial in number to reduce cost of the phone call,Such as the number of dialling in of this state not, the mode that can adopt clawback to call out.
In the time that method of calling is clawback calling, please refer to Fig. 5,
Step S401, terminal device sends phone request to telephony gateway, and by master corresponding terminal deviceCall out the numbers code, called number is sent to telephony gateway;
Step S402, telephony gateway is by PSTN Access Service Provider calling terminal equipment and called number correspondencePstn telephone;
Step S403, by telephony gateway bridge joint two-way phone, carries out between terminal device and called numberVoice call.
The terminal software of terminal device first sends phone request to telephony gateway by network, completes and recognizes simultaneouslyDemonstrate,prove and transmit following information and arrive telephony gateway: the calling number of terminal device, called number;
Calling number and called number are successively called out or call out simultaneously to telephony gateway by PSTN Access Service ProviderCode, uses called number for caller identification while calling out calling number, uses main calling out the numbers while calling out called numberCode is caller identification, and starts management function module (such as charging, daily record etc.) according to authentication information.
Utilize telephony gateway bridge joint two-way phone, between terminal device and called number, carry out voice call.
In other embodiments, in the situation that having network to connect, terminal device is called out it at beginning clawbackInitialization of front execution, can encode the information such as calling number, called number when initialization, buildsLithol draws, and this index information can be preserved at telephony gateway always. When terminal device find calling number andCalled number has had in the situation of index, just only need to be connected index number is passed by DTMF or networkPass telephony gateway, telephony gateway can find corresponding calling number and called number letter according to index numberBreath, utilizes telephony gateway bridge joint two-way phone, carries out voice call between terminal device and called number,The data volume of DTMF transmission is few, and the response time is short, gets involved best user's body can be provided without userTest.
Because above-mentioned three kinds of needed network environments of method of calling are not identical, and expense is also different,The network minimal of calling network, the expense that clawback is called out is the highest, and therefore terminal device is residing according to selfNetwork environment is selected suitable method of calling, can not only farthest reduce telephone charge use, can also ensureBest speech quality.
Therein in an embodiment, in the time that user opens terminal software calling called number, according to currentNetwork connect the quality being connected with phone, select the most suitable dial mode.
In the time that data network condition is enough good, use calling network mode. When do not possess data network andWhen optimum this locality is dialled in number and existed, use local call mode or clawback method of calling. Can when possessingBut while being not enough to voice-bearer communication by data network stability, use clawback method of calling.
In another embodiment, in the process of telephone relation, decline also if there is speech qualityAnd when another kind of method of calling is available, can preserve the connection between telephony gateway and callee, dynamically cutChange the communication mode between calling party and telephony gateway.
In another embodiment, in the process of telephone relation, to ascending voice passage and downlink voiceThe voice data transmission mode that channel selecting is different. According to speech quality and data network situation, also simultaneouslyEnforcement calling network (data network) and local call, clawback are called out (telephone network) and are done speech dataUp, telephony gateway utilizes software and hardware to merge the data of duplicate removal 2 passages, obtains the language of high definitionSound quality. And the lower Mobile state of speech data is according to network and down going channel of telephony quality Dynamic Selection.
In other embodiments, ascending voice passage and downlink voice passage can two passages or triple channelConcurrent and carry out data duplicate removal, make ascending voice passage and downlink voice passage all obtain the voice of high definitionQuality.
In another embodiment, in the process of telephone relation, can be according to speech quality and data networkNetwork situation, can also asymmetric and Dynamic Selection uplink and downlink passage. Such as the larger data of dedicated bandwidthThe descending callee's of network speech data, with telephone network uplink calling party voice. Uplink and downlinkVoice are relayed to callee by telephony gateway, make full use of the advantage separately of data network and telephone networkReach higher voice quality. Such as upstream or downstream passage Parallel Fusion calling network and basis simultaneouslyThese two kinds of method of callings are called out on ground, and it is same dynamically to adjust voice according to the quality of data network and telephone networkTime transmission proportion in these two kinds of method of callings, thereby obtain optimum speech quality.
Professional should further recognize, describes in conjunction with the application's the disclosed embodimentsThe unit of each example and algorithm steps, can come with electronic hardware, computer software or the combination of the twoRealize, for the interchangeability of hardware and software is clearly described, in the above description according to functionComposition and the step of each example have been described in general manner. These functions are come with hardware or software mode actuallyCarry out, depend on application-specific and the design constraint of technical scheme. Professional and technical personnel can be to oftenIndividual specifically should being used for realized described function with distinct methods, but this realization should not be thoughtExceed the application's scope.
The method of describing in conjunction with the disclosed embodiments in the application or the step of algorithm can be with hardware, locateThe software module that reason device is carried out or the combination of the two are implemented. Software module can be placed in random storageDevice RAM, internal memory, read only memory ROM, electrically programmable ROM, electrically erasable ROM,Known any other shape in register, hard disk, moveable magnetic disc, CD-ROM or technical fieldIn the storage medium of formula.
Finally it should be noted that: although the present invention with preferred embodiment openly as above, its be not forLimit the present invention, any those skilled in the art without departing from the spirit and scope of the present invention, canMake possible variation and amendment, therefore protection scope of the present invention should be with the claims in the present invention institute circleFixed scope is as the criterion.
Claims (17)
1. a phone call method, is characterized in that, comprising:
Terminal device is selected suitable method of calling according to self residing network environment, makes terminal deviceAnd between telephony gateway, set up phone and be connected, and send called number to telephony gateway;
Between pstn telephone corresponding to telephony gateway and called number, setting up phone connects;
By telephony gateway bridge joint two-way phone, between pstn telephone corresponding to terminal device and called numberCarry out voice call.
2. phone call method as claimed in claim 1, is characterized in that, described method of calling comprises networkCalling, local call, clawback are called out one wherein.
3. phone call method as claimed in claim 1 or 2, is characterized in that, when terminal device is called out calledWhen number, connect the quality being connected with phone according to current network, select the most suitable dial mode.
4. phone call method as claimed in claim 1 or 2, is characterized in that, in communication process, ifWhile occurring that speech quality declines and another kind of method of calling is available, preserve between telephony gateway and calleeConnection, the dynamically method of calling between switching terminal equipment and telephony gateway.
5. phone call method as claimed in claim 1 or 2, is characterized in that, connects according to current networkThe quality being connected with phone, the speech datas different with downlink voice channel selecting to ascending voice passage passDefeated mode.
6. phone call method as claimed in claim 5, is characterized in that, also comprises: utilize multichannel alsoSend out and carry out uplink or downlink transfer.
7. phone call method as claimed in claim 2, is characterized in that, the concrete step of described calling networkSuddenly comprise:
Between terminal device and telephony gateway, set up network and connect, utilize this network to transmit calling number and quiltCall out the numbers code to telephony gateway, completing user certification;
Telephony gateway is called out pstn telephone corresponding to called number;
Between terminal device and telephony gateway, set up speech data and connect, simultaneously by telephony gateway be relayed to byThe pstn telephone of the code correspondence of calling out the numbers, the pstn telephone that terminal device is corresponding with called number carries out voice and leads toWords.
8. phone call method as claimed in claim 2, is characterized in that, the concrete step of described local callSuddenly comprise:
Number is dialled in this locality optimum in terminal device called telephone gateway, and called number is sent to electricityPhone network closes;
Telephony gateway is called out pstn telephone corresponding to called number;
Between terminal device and telephony gateway, set up speech data and connect, simultaneously by telephony gateway be relayed to byThe pstn telephone of the code correspondence of calling out the numbers, the pstn telephone that terminal device is corresponding with called number carries out voice and leads toWords.
9. phone call method as claimed in claim 8, is characterized in that, converses it in local callBefore, and terminal device is while existing network to be connected with telephony gateway, initializes described initialized stepSuddenly comprise:
Terminal device carries out account certification at telephony gateway;
Calling number corresponding terminal device, toll free number information are sent to telephony gateway;
Telephony gateway obtains optimum basis from toll free number information according to the calling number of terminal deviceDial in number.
10. phone call method as claimed in claim 2, is characterized in that, the concrete step that described clawback is called outSuddenly comprise:
Terminal device sends phone request to telephony gateway, and by calling number corresponding terminal device, quiltThe code of calling out the numbers is sent to telephony gateway;
Telephony gateway by PSTN Access Service Provider calling terminal equipment and called number corresponding PSTNPhone;
By telephony gateway bridge joint two-way phone, between terminal device and called number, carry out voice call.
11. phone call methods as claimed in claim 1, is characterized in that, described terminal device comprises phoneModule and/or mixed-media network modules mixed-media, phone module is set up phone by PSTN Access Service Provider and telephony gateway and is connectedConnect, mixed-media network modules mixed-media is set up phone by network and telephony gateway and is connected.
12. 1 kinds of telephone call systems, is characterized in that, comprising: terminal device, telephony gateway, called numberThe pstn telephone that code is corresponding;
Terminal device is selected suitable method of calling according to self residing network environment, makes terminal deviceAnd between telephony gateway, set up phone and be connected, and send called number to telephony gateway;
Between pstn telephone corresponding to telephony gateway and called number, setting up phone connects;
Telephony gateway bridge joint two-way phone, carries out between pstn telephone corresponding to terminal device and called numberVoice call.
13. telephone call systems as claimed in claim 12, is characterized in that, described method of calling comprises netNetwork calling, local call, clawback are called out one wherein.
14. telephone call systems as claimed in claim 12, is characterized in that, connect according to current networkThe quality being connected with phone, the speech datas different with downlink voice channel selecting to ascending voice passage passDefeated mode.
15. telephone call systems as claimed in claim 14, is characterized in that, also comprise: utilize multichannelConcurrent uplink or the downlink transfer of carrying out.
16. telephone call systems as claimed in claim 12, is characterized in that, described terminal device comprises electricityWords module and/or mixed-media network modules mixed-media, phone module is set up phone by PSTN Access Service Provider and telephony gatewayConnect, mixed-media network modules mixed-media is set up phone by network and telephony gateway and is connected.
17. telephone call systems as claimed in claim 12, is characterized in that, in communication process, ifWhile occurring that speech quality declines and another kind of method of calling is available, preserve between telephony gateway and calleeConnection, the dynamically method of calling between switching terminal equipment and telephony gateway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610137162.9A CN105611516A (en) | 2016-03-10 | 2016-03-10 | Telephone calling system and telephone calling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610137162.9A CN105611516A (en) | 2016-03-10 | 2016-03-10 | Telephone calling system and telephone calling method |
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