CN100581204C - Voice gateway and method for constructing special link from voice gateway - Google Patents
Voice gateway and method for constructing special link from voice gateway Download PDFInfo
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- CN100581204C CN100581204C CN200610127336A CN200610127336A CN100581204C CN 100581204 C CN100581204 C CN 100581204C CN 200610127336 A CN200610127336 A CN 200610127336A CN 200610127336 A CN200610127336 A CN 200610127336A CN 100581204 C CN100581204 C CN 100581204C
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Abstract
The invention discloses a phonetic gateway that is fitted with digital signal processor and IP call controlling module connected with IP network, and a receiving-transmitting interface connected to the said signal processor and IP calling control module and used for start in signaling-free manner and receiving and transmitting audio frequency data. It also discloses a method for phonetic gateway constituting exclusive link, including sending out phonetic call to call-in equipment related to the phone number through IP network, and acting the receiving interface after getting the link messages from call-in equipment. When phonetic gateway is in being called side, it will start the relative receiving interface after receiving the phonetic call from call-in equipment and return the link message to call-out equipment. The invention can constitute the exclusive link among phonetic gateway without signaling and backup the exclusive operation.
Description
Technical field
The present invention relates to the method for a kind of gateway and structure leased-line link, the method for particularly a kind of voice gateways and constructing special link from voice gateway belongs to communication technical field.
Background technology
The public switch telephone network of traditional sense (Public Switched Telephone Network, be called for short PSTN) and be that the data network of representative all is isolated each other, the mutual business relations that do not exist at the beginning of occurring with the Internet (INTERNET); And along with the development of computer technology, Fibre Optical Communication Technology, digital technology, switching technology and voice compression technique, two macroreticulars are that the trend that merges has appearred in speech network and data network, for satisfying the demand that the user converses in real time, internet protocol-based transferring voice (Voice OverInternet Protocol is called for short VoIP) technology is arisen at the historic moment.
VoIP generally is referred to as IP phone, broadly is meant to carry data, voice, fax and multimedia services such as video, image on data network, in a narrow sense says it then is carry voice traffic.The VOIP technology is carried out compressed encoding by voice compression algorithm to voice, then these speech datas are packed according to related protocols such as TCP/IP, through IP network data packet transmission behind the destination, the recipient reconfigures these VoPs again, through after the decoding processing, just can revert to original voice signal, thereby reach the purpose that transmits voice by IP network.Difference according to operation platform, the VoIP business can utilize software mode and hardware mode to realize, wherein hardware implementation mode is to utilize voice gateway equipment that the relevant device of PSTN network and INTERNET network is coupled together, and adopts Digital Signal Processing to realize the connection of both call sides.
The major function of voice gateways is signaling process, H.323 protocol processes, encoding and decoding speech and Routing Protocol processing etc., and trunk interface that is connected with the PSTN net and the interface that is connected with IP network externally are provided.Referring to VOIP networking schematic diagram shown in Figure 1, voice gateways a1 is by receiving and sending (Ear and Mouth, abbreviation E﹠amp; M) E﹠amp of the PBX of interface a2 and PSTN network (Public Branch Exchange is called for short PBX) a4; M interface a3 connects, and is connected with the voice gateways b1 of opposite end via IP network, and voice gateways b1 also passes through E﹠amp; The E﹠amp of the PBX b4 of M interface b2 and PSTN network; M interface b3 connects.The ip voice agreement that adopts of communicating by letter between voice gateways a1 and the voice gateways b1 is H.323 agreement or Session Initiation Protocol.
Wherein, E﹠amp; The M interface is the common hardware interface of a kind of telephone exchange, simulation E﹠amp; The information of M interface is what to be separated with the signaling that continues.Simulation E﹠amp; The M interface is divided into I, II, III, IV, V class interface from interface type, is divided into two wires E﹠amp from the quantity of voice transmission line; M interface and four line E﹠amp; The M interface.Simulation E﹠amp; The functional description of each bar line of M interface is as shown in table 1:
Table 1 simulation E﹠amp; Each bar line function description table of M interface
| E﹠amp; The M interface line | Functional description |
| E (Ear or Earth) | Be used for receiving the signal of coming from opposite equip.. |
| M (Mouth or Magnet) | Be used for the local terminal device signal is sent to opposite equip.. |
| T/R (Tip/Ring) | Be used for sending voice data, only be used for being used for sending voice data under the 4 line modes. |
| T1/R1 (Tip1/Ring1) | Be used for transmitting audio data, when the 2 line modes of employing, transmit two-way voice data; When the 4 line modes of employing, be used for receiving voice data. |
| SB (Signal Battery) | The signaling negative supply is used for II, III, IV class E﹠amp; The M interface. |
| SG (Signal Ground) | Signaling negative electricity seedbed is used for II, III, IV class E﹠amp; The M interface. |
As shown in Figures 2 and 3, in the prior art based on the call setup and the process ends schematic diagram of network system shown in Figure 1, the number of calling F at phone E when setting up one road audio call, the E﹠amp of PBX a4; M interface a3 is to the E﹠amp of voice gateways a1; M interface a2 sends Seize ACK message to take E﹠amp; M interface a2, and by this E﹠amp; M interface a2 sends called number; After voice gateways a1 receives called number, convert H.323 message or sip message to and make a call to the opposite end, the voice gateways b1 of opposite end receives that carrying out opposite conversion again after the message calls out to set up.During phone E and phone F conversation, E﹠amp; The E line of M interface a2, a3, b2, b3 (being used to receive the signal that opposite equip. sends) and M line (being used for the local terminal device signal is sent to opposite equip.) all are in seizure condition, if either party is on-hook, the E﹠amp of PBX accordingly; The M interface will be to the E﹠amp of connected voice gateways; The M interface sends accessibility signal, the latter with this conversion of signals for H.323 or the call release message of SIP issue the opposite end voice gateways, and then send the E﹠amp of accessibility signal to the opposite end voice gateways; The M interface is with terminated call and discharge E﹠amp; The M repeated link.
Fig. 4 is the schematic diagram of functional module relevant with call setup and process ends in the voice gateways of prior art.Voice gateways comprise IP Call Control Block, the E﹠amp that is connected with IP network; M interface and the digital signal processor (DSP) that is connected with PBX, wherein E﹠amp; The M interface comprises that the transmitting-receiving control module that is connected with digital signal processor with the IP Call Control Block, the timer that is connected with the transmitting-receiving control module are provided with module, with timer DSP channel resource processing module that module is connected with digital signal processor and the number processing module that is connected with digital signal processor with DSP channel resource processing module are set.
Fig. 5 is the E﹠amp of voice gateways; The state transitions schematic diagram of M interface in handling process, when setting up one road audio call, the E﹠amp of PBX; The M interface is to the E﹠amp of the voice gateways that are in idle condition; The M interface sends Seize ACK message, and sends called number by this relaying cable.E﹠amp; After the transmitting-receiving control module of M interface receives the caller Seize ACK message that digital signal processor sends, call timer and the module creation signal is set confirms timer, and enter the receiving number state of preparing after promptly this Seize ACK message is identified at this timer expiry.E﹠amp then; M interface interchange DSP channel resource processing module, the DSP channel resource that application is corresponding, call the number processing module after the DSP channel resource success of DSP channel resource processing module application correspondence, obtain corresponding called number from digital signal processor, and enter just at the receiving number state; The number processing module returns to the transmitting-receiving control module with the called number that obtains, and the transmitting-receiving control module is initiated IP according to this called number to the IP Call Control Block and called out, and enters ringing condition; Behind the off hook signal of receiving the opposite end transmission that the IP Call Control Block returns, send called Seize ACK message to digital signal processor, enter talking state; Receive accessibility signal when the transmitting-receiving control module from digital signal processor, represent the on-hook of calling party elder generation, then receive and dispatch control module and send release message, discharge this calling, reenter idle condition to the IP Call Control Block; Receive on-hook message when the transmitting-receiving control module from the IP Call Control Block, represent the on-hook of callee elder generation, then receive and dispatch control module and send accessibility signal, discharge this calling, reenter idle condition to digital signal processor.
From the above, the deficiencies in the prior art part is:
1, needs to pass through E﹠amp between the existing voice gateways; The E line of M interface and M line carry out Signalling exchange could be set up voice link and promptly discharge this voice link behind end of conversation, and can not make up and safeguard leased-line link according to user's instruction.
2, existing voice gateways are to set up calling by the mode of calling party's off-hook, group callee's number, callee's ring, callee's off-hook, both sides' conversation, the E﹠amp of voice gateways before setting up calling; The M interface need with the E﹠amp of PBX; The M interface carries out Signalling exchange, is call release after user's on-hook, need to rebulid calling before calling out next time, and can not realize leased-line link, thereby can not support to make user's off-hook or press-to-talk button can with the private line service of opposite end conversation.
3, existing voice gateways need be carried out Signalling exchange with subscriber equipment when set up calling out, and the voice data transceiver (as intercom etc.) that starts voice data transmitting-receiving interface in the time of therefore can not be with energized automatically directly is connected.
Summary of the invention
One of purpose of the present invention is at above-mentioned the deficiencies in the prior art, a kind of voice gateways are provided, can make up and safeguard leased-line link according to the instruction of user input, and the voice data transceiver that starts voice data transmitting-receiving interface can be with energized the time automatically is connected directly.
Two of purpose of the present invention is at above-mentioned the deficiencies in the prior art, a kind of method of constructing special link from voice gateway is provided, can between described voice gateways, make up and safeguard leased-line link according to the instruction of user input, thus the private line service that can support to make user's off-hook or press-to-talk button to converse with the opposite end.
For achieving the above object, the invention provides a kind of voice gateways, the IP Call Control Block that is provided with digital signal processor and is connected with IP network, also be provided be connected with the IP Call Control Block with described digital signal processor, be used for starting and the transmitting-receiving interface of receiving and sending audio data with no signaling method;
Described transmitting-receiving interface is provided with control module, is connected with digital signal processor with described IP Call Control Block, be used for described IP Call Control Block and digital signal processor mutual, and the state of controlling described transmitting-receiving interface;
Described transmitting-receiving interface is provided with digital signal processor channel resource application module, be connected with digital signal processor with described control module, be used for according to the instruction of described control module channel resource to described digital signal processor application digital signal processor.
In the technique scheme, described transmitting-receiving interface can pass through at existing E﹠amp; Increase the function that after opposite equip. makes a call and receiving the connection message that calling that opposite equip. sends or opposite equip. respond, promptly starts the transmitting-receiving interface according to the instruction of user's input and called number on the M interface basis, and shielding E line and the received signaling of M line, do not need to carry out Signalling exchange by the transmitting-receiving interface of E line and M line and opposite equip., thereby realize that no signaling method ground starts and receiving and sending audio data, and then the voice data transceiver that starts voice data transmitting-receiving interface can be with energized the time automatically is connected directly.
Described transmitting-receiving interface also can be provided with configuration module, is connected with described control module, and the instruction that is used to receive and preserve the called number of user configured private line service and start private line service according to the user sends the instruction that makes up leased-line link to control module.
Described transmitting-receiving interface also can be provided with monitoring module, is connected with described control module, is used to monitor the state of described transmitting-receiving interface and mutual with described control module.
For realizing goal of the invention, the present invention also provides a kind of method of constructing special link from voice gateway, comprise: when voice gateways are positioned at Calling Side, called number according to user configured private line service, initiate audio call via IP network to the called equipment of this called number correspondence, and after receiving the connection message that called equipment returns, start the transmitting-receiving interface of the voice gateways that are positioned at described Calling Side; When voice gateways are positioned at callee side, after receiving the audio call that caller equipment sends, start the transmitting-receiving interface of the voice gateways that are positioned at described callee side, and return connection message to caller equipment;
Described called number according to user configured private line service, initiate audio call via IP network to called equipment and may further comprise the steps: in steps A 1, the channel resource of application digital signal processor; In steps A 2, after the channel resource success of application digital signal processor,, make a call then via the called equipment of IP network to this called number correspondence according to the called number of user configured private line service.
In the technique scheme, the voice gateways that are positioned at Calling Side also can be carried out following operation after starting the transmitting-receiving interface: send Seize ACK message to digital signal processor, and make the transmitting-receiving interface of the voice gateways that are positioned at described Calling Side keep talking state.The voice gateways that are positioned at Calling Side also can be carried out following steps after sending Seize ACK message to digital signal processor: according to pre-set time interval, whether the transmitting-receiving interface that regular monitoring is positioned at the voice gateways of described Calling Side is idle condition, is then to initiate audio call according to described called number to the called equipment of correspondence again.
The voice gateways that are positioned at callee side are after receiving the audio call that caller equipment sends, but the channel resource of first to file digital signal processor, and applying for that successfully back startup is positioned at the transmitting-receiving interface of the voice gateways of described callee side, send Seize ACK message to digital signal processor, make the transmitting-receiving interface of the voice gateways that are positioned at described callee side keep talking state, return connection message to caller equipment at last.
In the technique scheme, start the transmitting-receiving interface of the voice gateways be positioned at described Calling Side or be positioned at after the transmitting-receiving interface of voice gateways of described callee side, this is positioned at the transmitting-receiving interface of voice gateways of described Calling Side or the transmitting-receiving interface that is positioned at the voice gateways of described callee side still keeps talking state after receiving Seize ACK message or accessibility signal.
Be provided with transmitting-receiving interface in the voice gateways that technique scheme provided with no signaling method startup and receiving and sending audio data.This transmitting-receiving interface can make a call to opposite equip. according to the instruction and the called number of user's input, and behind the connection message of calling of receiving the opposite equip. transmission or opposite equip. response, promptly start the transmitting-receiving interface, and shielding E line and the received signaling of M line, do not need to carry out Signalling exchange by the transmitting-receiving interface of E line and M line and opposite equip., thereby make between the described voice gateways and can make up and safeguard leased-line link according to user's instruction, and do not need to carry out signaling exchange, thereby the voice data transceiver that starts voice data transmitting-receiving interface can be with energized the time automatically directly is connected with subscriber equipment.
Further, in the method for the constructing special link from voice gateway that technique scheme provides, make a call to the voice gateways that are positioned at callee side by the voice gateways that are positioned at Calling Side, the voice gateways that are positioned at callee side receive that calling out the back starts its transmitting-receiving interface and return connection message, the voice gateways that are positioned at Calling Side start its transmitting-receiving interface after receiving this connection message, thereby can make up leased-line link between the voice gateways of Calling Side and the voice gateways at callee side.Further, behind voice gateways startup transmitting-receiving interface, this transmitting-receiving interface still keeps talking state after receiving Seize ACK message or accessibility signal, and it is unimpeded that constructed leased-line link is remained.And the state of the monitoring module regular monitoring transmitting-receiving interface of the transmitting-receiving interface of the voice gateways by being positioned at Calling Side also makes a call when the transmitting-receiving interface is idle again, thereby realizes the maintenance to constructed leased-line link.By the leased-line link between these method structure voice gateways, when the voice data transceiver of startup voice data transmitting-receiving interface is connected automatically when making voice gateways with energized, can realize the two-way special line transmission of voice data by above-mentioned constructed leased-line link between the voice data transceiver, so can support to make user's off-hook or press-to-talk button can with the private line service of opposite end conversation.
Description of drawings
Fig. 1 is a VOIP networking schematic diagram in the prior art;
Fig. 2 is based on the call setup and the process ends schematic diagram of network system shown in Figure 1 in the prior art;
Fig. 3 is based on the call setup of network system shown in Figure 1 and another schematic diagram of process ends in the prior art;
Fig. 4 is the schematic diagram of functional module relevant with call setup and process ends in the existing voice gateway;
Fig. 5 is the E﹠amp of existing voice gateway; The schematic diagram of M interface handling process;
Fig. 6 is the principle schematic of voice gateways provided by the present invention;
Fig. 7 is the schematic diagram of the preferred embodiment one of voice gateways provided by the present invention;
Fig. 8 is the schematic diagram of the preferred embodiment two of voice gateways provided by the present invention;
Fig. 9 is the schematic diagram of the preferred embodiment three of voice gateways provided by the present invention;
Figure 10 is the state exchange schematic diagram of the preferred embodiment three of voice gateways provided by the present invention;
Figure 11 is the flow chart of embodiment one of the method for constructing special link from voice gateway provided by the present invention;
Figure 12 is the flow chart of embodiment two of the method for constructing special link from voice gateway provided by the present invention;
Figure 13 is the flow chart of embodiment three of the method for constructing special link from voice gateway provided by the present invention;
Figure 14 is the schematic diagram of embodiment four of the method for constructing special link from voice gateway provided by the present invention;
Figure 15 is the schematic diagram of the preferred embodiments of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
Design of the present invention is by a kind of voice gateways that can start transmitting-receiving interface and receiving and sending audio data with no signaling method are provided, and then provide a kind of method of constructing special link from voice gateway, can make between the voice gateways and can make up leased-line link according to user's instruction and configuration, voice gateways do not need to carry out the mutual of signaling with subscriber equipment in the process that makes up leased-line link, start the transmitting-receiving interface and then make up leased-line link thereby can realize not having signaling method ground.Because described voice gateways do not need to carry out Signalling exchange with subscriber equipment and can make up leased-line link, therefore the voice data transceiver that starts voice data transmitting-receiving interface in the time of can be with energized automatically directly is connected, and make between the described voice data transceiver and can realize the two-way special line transmission of voice data via described voice gateways and the leased-line link that between described voice gateways, makes up, and then can support to make user's off-hook or press-to-talk button can with the private line service of opposite end conversation.
Referring to the principle schematic of voice gateways provided by the present invention shown in Figure 6, a kind of voice gateways are provided with digital signal processor, are used to the leased-line link of respectively receiving and dispatching the interface correspondence of these voice gateways to distribute the DSP channel resource; Also be provided with the IP Call Control Block that is connected with IP network, be used for carrying out alternately via IP network side and opposite equip.; Also be provided be connected with the IP Call Control Block with described digital signal processor, be used for starting and the transmitting-receiving interface of receiving and sending audio data with no signaling method.Described transmitting-receiving interface does not need to carry out Signalling exchange with the transmitting-receiving interface of opposite equip., and can start according to the instruction of user input and keep talking state, and can receiving and sending audio data.Described in actual applications transmitting-receiving interface has multiple implementation, and those skilled in the art can be based on technique scheme and described transmitting-receiving interface of existing techniques in realizing and described voice gateways.Further; because each voice gateways can have a plurality of transmitting-receiving interfaces; therefore can whether needs be supported private line service according to the interface of respectively receiving and dispatching of voice gateways; whether dispose this transmitting-receiving interface is described transmitting-receiving interface with no signaling method startup and receiving and sending audio data; thereby make described voice gateways can support a plurality of leased-line links, it is still in technical solution of the present invention scope required for protection.
In the preferred embodiment one of voice gateways provided by the present invention,, realize described transmitting-receiving interface with no signaling method startup and receiving and sending audio data by in the transmitting-receiving interface, control module and configuration module being set.Referring to Fig. 7, control module 721 is connected with digital signal processor 73 with IP Call Control Block 71, is used for the state of and control transmitting-receiving interface 72 mutual with IP Call Control Block 71 and digital signal processor 73.Configuration module 722 is connected with control module 721, is used to receive and preserve the called number of user configured private line service and the instruction that starts private line service according to the user, sends the instruction that makes up leased-line link to control module 721.
Receive the called number of the instruction of the startup private line service that the user sends and user configured private line service when configuration module 722 after, send the instruction that makes up leased-line links to control module 721; Control module 721 receives that this instruction back earlier to digital signal processor 73 application DSP channel resources, makes a call to IP Call Control Block 71 after applying for successfully; IP Call Control Block 71 is initiated audio call via IP network to the opposite equip. of described called number correspondence subsequently.IP Call Control Block 71 is after receiving the audio call that connection message that opposite equip. sends (these voice gateways as the calling party time) or opposite equip. send (these voice gateways as the callee time), send message to control module 721, control module 721 starts transmitting-receiving interface 72 and keeps talking state, and sends Seize ACK message to digital signal processor 73.
The caller equipment that the voice gateways that provide in above preferred embodiment one both can be used as the audio call of initiating the structure leased-line link uses, and also can be used as the called equipment that receives the audio call that makes up leased-line link and uses.When using as caller equipment, described transmitting-receiving interface needs being used of configuration module 722 and control module 721, make a call to user configured called number with instruction according to the user, and after receiving the connection message that opposite equip. returns, described transmitting-receiving interface is started and the maintenance talking state.When using as called equipment, described transmitting-receiving interface needs control module 721 controls, and it starts after receiving audio call and keeps talking state.
From the above, the voice gateways that this embodiment one is provided can promptly start the transmitting-receiving interface according to the instruction of user input and called number after opposite equip. makes a call and receiving the connection message that calling that opposite equip. sends or opposite equip. respond, can make up leased-line link according to user's instruction thereby make between the described voice gateways.
In the preferred embodiment two of voice gateways provided by the present invention,, realize described transmitting-receiving interface with no signaling method startup and receiving and sending audio data by in the transmitting-receiving interface, control module, configuration module and DSP channel resource application module being set.Fig. 8 is the schematic diagram of the preferred embodiment two, the preferred embodiment two is with the difference of above preferred embodiment one: transmitting-receiving interface 82 also comprises DSP channel resource application module 823, be connected with digital signal processor 83 with control module 821, be used for applying for the DSP channel resources to digital signal processor 83 according to the instruction of control module 821.
Receive the called number of the instruction of the startup private line service that the user sends and user configured private line service when configuration module 822 after, send the instruction that makes up leased-line links to control module 821; Control module 821 receives that this instruction back sends instruction to DSP channel resource application module 823, and DSP channel resource application module 823 is applied for the DSP channel resources to digital signal processor 73 subsequently, and is applying for successfully back notice control module 821; Control module 821 makes a call to IP Call Control Block 81 then; IP Call Control Block 81 is initiated audio call via IP network to the opposite equip. of described called number correspondence immediately.IP Call Control Block 81 is after receiving the audio call that connection message that opposite equip. sends (these voice gateways as the calling party time) or opposite equip. send (these voice gateways as the callee time), send message to control module 821, control module 821 starts transmitting-receiving interface 82 and keeps talking state, and sends Seize ACK message to digital signal processor 83.
Referring to Fig. 9, be the schematic diagram of the preferred embodiment three of voice gateways provided by the present invention.The preferred embodiment three is with the difference of above preferred embodiment two: transmitting-receiving interface 92 also is provided with monitoring module 924, is connected with control module 921, is used to monitor the state of receiving and dispatching interface 92 and mutual with control module 921.In the preferred embodiment three, receive connection message or the audio call that opposite equip. sends at the IP Call Control Block, and to the control module 921 transmission message of receiving and dispatching interface 92, after making 92 startups of transmitting-receiving interface and keeping talking state, monitoring module 924 is according to the default time interval, make regular check on transmitting-receiving interface 92 and whether be in idle condition, be to show that then leased-line link breaks down, monitoring module 924 notifies control module 921 to make a call to IP Call Control Block 91 again immediately, to rebulid leased-line link.
Figure 10 is the state exchange schematic diagram of above preferred embodiment three, there is shown transmitting-receiving interface 92 state exchange situation under various conditions.Transmitting-receiving interface 92 is behind instruction of receiving the startup private line service that the user sends and corresponding called number, to digital signal processor 93 application DSP channel resources, applying for that successfully the back makes a call to IP Call Control Block 91, and entering ringing condition by idle condition; After IP Call Control Block 91 is received the connection message that opposite equip. returns, send message to transmitting-receiving interface 92, transmitting-receiving interface 92 is started, enter talking state by ringing condition; When link broke down, transmitting-receiving interface 92 reentered idle condition; When monitoring module 924 monitors transmitting-receiving interface 92 when being in idle condition, send instruction to control module 921, control module 921 is made a call to IP Call Control Block 91 to digital signal processor 93 application DSP channel resources and after applying for successfully again, thereby make transmitting-receiving interface 92 enter ringing condition, and after receiving the connection message that opposite equip. returns, make transmitting-receiving interface 92 enter talking state by ringing condition from idle condition.The state transition of transmitting-receiving interface 92 according to the monitoring of the default time interval to transmitting-receiving interface 92 states, makes transmitting-receiving interface 92 keep talking state by monitoring module after startup by that analogy.
From the above, in this preferred embodiment three, by monitoring module 924 being set in the interface 92, thereby can make transmitting-receiving interface 92 after startup, keep talking state in transmitting-receiving, and then after making between the described voice gateways instruction according to the user make up leased-line link, can safeguard this leased-line link.
Based on voice gateways provided by the present invention, the present invention also provides a kind of method of constructing special link from voice gateway, comprise: when voice gateways are positioned at Calling Side, called number according to user configured private line service, initiate audio call via IP network to the called equipment of this called number correspondence, and after receiving the connection message that called equipment returns, start the transmitting-receiving interface; When voice gateways are positioned at callee side, after receiving the audio call that caller equipment sends, start corresponding transmitting-receiving interface, and return connection message to caller equipment.After all starting corresponding transmitting-receiving interface, voice gateways that are positioned at Calling Side and the voice gateways that are positioned at callee side promptly made up corresponding leased-line link.
Figure 11 is the flow chart of embodiment one of the method for constructing special link from voice gateway provided by the present invention, after the transmitting-receiving interface that is positioned at the voice gateways of Calling Side receives that the user starts the instruction of private line service, and the channel resource of application digital signal processor; After applying for successfully,, initiate audio call to the called equipment of correspondence via IP network according to the called number of user configured private line service; After receiving the connection message that called equipment returns, start corresponding transmitting-receiving interface, send Seize ACK message to digital signal processor, and make this transmitting-receiving interface keep talking state.In the present embodiment one, the voice gateways that are positioned at Calling Side are initiated audio call according to user's the instruction and the called number of configuration, need not wait for that the opposite end voice gateways receive the signaling of subscriber equipment, but after receiving the connection message that the opposite end voice gateways are returned, promptly start corresponding transmitting-receiving interface, thereby realized that no signaling method ground starts the transmitting-receiving interface, and then can not have signaling method ground and make up leased-line link, and the voice data transceiver that starts voice data transmitting-receiving interface can be with energized the time automatically directly is connected.
The foregoing description one provides the voice gateways that are positioned at Calling Side not have the method that signaling method ground starts the transmitting-receiving interface, Figure 12 is the flow chart of embodiment two of the method for constructing special link from voice gateway provided by the present invention, be with the difference of the foregoing description one: the voice gateways that are positioned at Calling Side are also carried out following steps after sending Seize ACK message to digital signal processor: according to pre-set time interval, whether the described transmitting-receiving interface of regular monitoring is idle condition, is then to initiate audio call according to described called number to the called equipment of correspondence again.In the present embodiment two, provide the voice gateways that are positioned at Calling Side further after no signaling method ground starts the transmitting-receiving interface, the method that the state of transmitting-receiving interface is monitored, thus can reach the technique effect of safeguarding constructed leased-line link.
Among the embodiment one and embodiment two of the method for the constructing special link from voice gateway that the invention described above provided, the voice gateways that are positioned at Calling Side start after the transmitting-receiving interface, this transmitting-receiving interface still keeps talking state after receiving Seize ACK message or accessibility signal, thereby makes constructed leased-line link not be subjected to the influence of the follow-up signaling of receiving.
Communication process when the embodiment one of the method for the structure leased-line link that the invention described above provided and embodiment two provide the constructing special link from voice gateway that is positioned at Calling Side, in the embodiment three of the method for structure leased-line link provided by the present invention, further provide the communication process of the voice gateways that are positioned at callee side when making up leased-line link below.
Referring to Figure 13, be the flow chart of the embodiment three of the method for constructing special link from voice gateway provided by the present invention, the voice gateways that are positioned at callee side after receiving the audio call that caller equipment sends, the channel resource of application digital signal processor; Applying for that successfully the back starts corresponding transmitting-receiving interface; Send Seize ACK message to digital signal processor then, make described transmitting-receiving interface keep talking state; Return connection message to caller equipment at last.Similarly, among the embodiment three of the method for the constructing special link from voice gateway that the invention described above provided, after starting the transmitting-receiving interface, this transmitting-receiving interface still keeps talking state after receiving Seize ACK message or accessibility signal, thereby makes constructed leased-line link not be subjected to the influence of the follow-up signaling of receiving.
Figure 14 is the schematic diagram of embodiment four of the method for constructing special link from voice gateway provided by the present invention.The transmitting-receiving interface that is positioned at the voice gateways of Calling Side makes a call to the IP Call Control Block after receiving user instruction, the IP Call Control Block is initiated audio call by setting up message to the voice gateways that are positioned at callee side, the voice gateways that are positioned at callee side start its transmitting-receiving interface after receiving this audio call, and return connection message, the voice gateways that are positioned at Calling Side start its transmitting-receiving interface after receiving this connection message, thereby are setting up leased-line link between the transmitting-receiving interface of the voice gateways of Calling Side and the transmitting-receiving interface in the voice gateways of callee side.Further; because each voice gateways can have a plurality of transmitting-receiving interfaces; therefore can use method provided by the present invention; each self-corresponding leased-line link of structure between the interface is received and dispatched in each transmitting-receiving interface and corresponding opposite end thereof in voice gateways; thereby make described voice gateways can support a plurality of leased-line links, it is still within technical solution of the present invention scope required for protection.
The method of voice gateways provided by the present invention and constructing special link from voice gateway can support to make user's off-hook or press-to-talk button can with the private line service of opposite end conversation.Figure 15 is the schematic diagram of the preferred embodiments of the present invention, be connected to each other via IP network between voice gateways M and the voice gateways N, the transmitting-receiving interface J of voice gateways M is connected with voice data transceiver P, the transmitting-receiving interface K of voice gateways N is connected with voice data transceiver Q, and voice data transceiver P and voice data transceiver Q are the voice data transceiver that starts voice data transmitting-receiving interface when energized automatically.By the method for structure leased-line link provided by the present invention, between the transmitting-receiving interface K of the transmitting-receiving interface J of voice gateways M and voice gateways N, make up leased-line link corresponding to voice data transceiver P and voice data transceiver Q.Therefore when voice data transceiver P need be with voice data transceiver Q transmitting audio data, can directly use the leased-line link transmitted in both directions voice data between the transmitting-receiving interface K of the transmitting-receiving interface J of voice gateways M and voice gateways N.Further, voice gateways M can set up many leased-line links with the transmitting-receiving interface of different opposite end voice gateways respectively by a plurality of transmitting-receiving interfaces, and it is still within technical solution of the present invention scope required for protection.
The method of voice gateways provided by the invention and constructing special link from voice gateway much need to can be applicable in the public industry of private line service (as civil aviaton, postal service, public security etc.), make constructed leased-line link keep unimpeded, user's off-hook or press-to-talk button can be conversed with the opposite end always.In concrete the application, automatically start the equipment of voice data transmitting-receiving interface when described voice data transceiver can be for various energized, as can be telephone set with four line mode receiving and sending audio datas, also can be audio transceiver, also can be the very high frequency(VHF) equipment that is connected with intercom, described intercom is used for to described very high frequency(VHF) equipment receiving and sending audio data, starts the PBX of voice data transmitting-receiving interface when also can be energized automatically.Above-mentioned only is concrete giving an example of using; adopt the method for voice gateways provided by the invention and constructing special link from voice gateway, and the execution mode of voice data transceiver that starts voice data transmitting-receiving interface when being applied to other energized automatically is still within technical solution of the present invention scope required for protection.
It should be noted last that: above embodiment is only in order to illustrating technical scheme of the present invention, but not the present invention is made restrictive sense.Although the present invention is had been described in detail with reference to above-mentioned preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and this modification or be equal to the spirit and scope that replacement does not break away from technical solution of the present invention.
Claims (8)
1, a kind of voice gateways, the IP Call Control Block that is provided with digital signal processor and is connected with IP network is characterized in that: also be provided be connected with the IP Call Control Block with described digital signal processor, be used for starting and the transmitting-receiving interface of receiving and sending audio data with no signaling method;
Described transmitting-receiving interface is provided with control module, is connected with digital signal processor with described IP Call Control Block, be used for described IP Call Control Block and digital signal processor mutual, and the state of controlling described transmitting-receiving interface;
Described transmitting-receiving interface is provided with digital signal processor channel resource application module, be connected with digital signal processor with described control module, be used for according to the instruction of described control module channel resource to described digital signal processor application digital signal processor.
2, voice gateways according to claim 1, it is characterized in that: described transmitting-receiving interface is provided with configuration module, be connected with described control module, the instruction that is used to receive and preserve the called number of user configured private line service and start private line service according to the user sends the instruction that makes up leased-line link to control module.
3, voice gateways according to claim 2 is characterized in that: described transmitting-receiving interface is provided with monitoring module, is connected with described control module, is used to monitor the state of described transmitting-receiving interface and mutual with described control module.
4, a kind of method of constructing special link from voice gateway is characterized in that, comprising:
When voice gateways are positioned at Calling Side, called number according to user configured private line service, initiate audio call via IP network to the called equipment of this called number correspondence, and after receiving the connection message that called equipment returns, start the transmitting-receiving interface of the voice gateways that are positioned at described Calling Side;
When voice gateways are positioned at callee side, after receiving the audio call that caller equipment sends, start the transmitting-receiving interface of the voice gateways that are positioned at described callee side, and return connection message to caller equipment;
Described called number according to user configured private line service, initiate audio call via IP network to called equipment and may further comprise the steps:
The channel resource of A1, application digital signal processor;
After the channel resource success of A2, application digital signal processor,, make a call via the called equipment of IP network to this called number correspondence according to the called number of user configured private line service.
5, method according to claim 4, it is characterized in that, be positioned at voice gateways also operation below the execution after starting the transmitting-receiving interface of Calling Side: send Seize ACK message to digital signal processor, and make the transmitting-receiving interface of the voice gateways that are positioned at described Calling Side keep talking state.
6, method according to claim 5, it is characterized in that, the voice gateways that are positioned at Calling Side are also carried out following steps after sending Seize ACK message to digital signal processor: according to pre-set time interval, whether the transmitting-receiving interface that regular monitoring is positioned at the voice gateways of described Calling Side is idle condition, is then to initiate audio call according to described called number to the called equipment of correspondence again.
7, method according to claim 4, it is characterized in that: the voice gateways that are positioned at callee side are after receiving the audio call that caller equipment sends, the channel resource of first to file digital signal processor, and applying for that successfully back startup is positioned at the transmitting-receiving interface of the voice gateways of described callee side, send Seize ACK message to digital signal processor, make the transmitting-receiving interface of the voice gateways that are positioned at described callee side keep talking state, return connection message to caller equipment at last.
8, according to the arbitrary described method of claim 4-7, it is characterized in that: start the transmitting-receiving interface of the voice gateways be positioned at described Calling Side or be positioned at after the transmitting-receiving interface of voice gateways of described callee side, this is positioned at the transmitting-receiving interface of voice gateways of described Calling Side or the transmitting-receiving interface that is positioned at the voice gateways of described callee side still keeps talking state after receiving Seize ACK message or accessibility signal.
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| CN200610127336A CN100581204C (en) | 2006-09-14 | 2006-09-14 | Voice gateway and method for constructing special link from voice gateway |
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| CN200610127336A CN100581204C (en) | 2006-09-14 | 2006-09-14 | Voice gateway and method for constructing special link from voice gateway |
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| CN100581204C true CN100581204C (en) | 2010-01-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101188803B (en) * | 2007-08-31 | 2011-08-24 | 中兴通讯股份有限公司 | Notification method for enabling no-signaling mobile mechanism |
| CN101136959B (en) * | 2007-10-22 | 2011-06-15 | 杭州华三通信技术有限公司 | Method and system for transmitting analog control signalling on E&M virtual private line |
| CN101478617B (en) * | 2008-12-31 | 2012-01-18 | 中国电信股份有限公司 | Method, system, household gateway and USB wireless device for implementing VOIP voice |
| CN101969512B (en) * | 2010-10-29 | 2015-04-01 | 迈普通信技术股份有限公司 | IP (Internet Protocol) voice private line control method and equipment thereof |
| CN111970292B (en) * | 2020-08-24 | 2023-02-24 | 成都天奥信息科技有限公司 | Civil aviation VoIP voice communication exchange system and control seat distributed networking method |
| CN111970289B (en) * | 2020-09-10 | 2023-02-10 | 成都天奥信息科技有限公司 | Interconnection networking method and system of civil aviation VoIP voice communication exchange system |
| CN113890950A (en) * | 2021-11-04 | 2022-01-04 | 厦门亿联网络技术股份有限公司 | VOIP terminal network detection method and device and VOIP terminal |
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Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |
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