CN102739884B - Dialing method and gateway equipment - Google Patents
Dialing method and gateway equipment Download PDFInfo
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- CN102739884B CN102739884B CN201210244198.9A CN201210244198A CN102739884B CN 102739884 B CN102739884 B CN 102739884B CN 201210244198 A CN201210244198 A CN 201210244198A CN 102739884 B CN102739884 B CN 102739884B
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Abstract
The invention discloses a dialing method comprising the following steps of: matching an FXO (Foreign Exchange Office) interface according to a received number when gateway equipment receives the number dialed by a user through an FXS (Foreign Exchange Station) interface; when the matching is successful, carrying out offhook on the matched FXO interface, sending a dialing request to a public switched telephone network (PSTN) by the matched FXO interface, and carrying out overlapped dialing on the received number through the matched FXO interface in a dual tone multiple frequency (DTMF) way when a dial tone is received; and when receiving the number dialed by the user is determined to be ended, carrying out time slot connection between the FXS interface and the FXO interface, and sending a ringback tone to the user to enable the user to wait for conversation. Based on the same inventive concept, the invention also provides the gateway equipment capable of realizing FXO calling under the conditions that the dialing habit of the user is not influenced and the calling time is not prolonged.
Description
Technical field
The application relates to audio call processing technology field, particularly a kind of Dialing Method and gateway device.
Background technology
Referring to Fig. 1, Fig. 1 is typical IP-based voice communication (Voice Over Internet Protocol, VOIP) telephone system structural representation.In Fig. 1, VOIP telephone system is comprised of VOIP telephone network, PSTN (Public Switch Telephony Network, PSTN) telephone network and gateway device (Gateway).On gateway device, have three class interfaces, a class interface is FXS (Foreign eXchange Station, FXS) interface, and it can connect common telephone set; One class interface is FXO (Foreign eXchange Office, FXO) interface, and it can directly be connected with the telephone wire of PSTN; Another kind of interface is IP interface, for VOIP, converses.In this telephone system, VOIP intercommunication phone is called out, and as phone 1 called telephone 2, by IP network, can complete.If VOIP intercommunication phone will carry out call with PSTN, as phone 1 called telephone 3, need the FXO interface of gateway device to transform and intercommunication.
On the gateway device of Fig. 1, when receiving the phone 3 of phone 1 calling PSTN by FXS, existing is first by there being following two kinds of modes: mode 1, gateway device is collected the dialing of phone 1, and when dialing 87654321 completes, gateway device is again by FXO interface call, here need to carry out two-stage dialing, be gateway device operation FXO interface off-hook, then to PSTN, again dial 87654321, and finally complete calling; Mode 2, on gateway device, configure PSTN prefix as number 9, like this after phone 1 dials 9, gateway device is directly routed to number on FXO interface, to FXO off-hook, be communicated with FXS and FXO time slot, now phone 1 can be heard the dialing tone that PSTN is sidelong, then phone 1 dials the number 87654321, and finally completes calling.
In mode 1, there is certain time delay, be to carry out again two-stage dialing after gateway device first receives the number (collecting the digits) that user transfers to, main time delay has two, one is that gateway device is waited for the time delay having collected the digits, gateway generally cannot accurately configure the number exact matching route of whole net, can arrange and wait for that dialing overtime timer was as 5 seconds, and gateway device can wait 5 seconds and just carries out two-stage dialing like this.Another one time delay is that FXO off-hook is two-stage dialing process again, generally understands 2-5 second.
In mode 2, although time delay is less, but owing to must dialling prefix, and hear after dialing tone two-stage dialing again, changed user's dialing custom, user does not generally wish prefix, and telephone set is when redial again, the common phone of not supporting time delay is cannot be successful, because from dialling prefix to hearing dialing tone, can need the 1-2 time of second, other numbers in the middle of this can all be lost.
Summary of the invention
In view of this, the application provides a kind of Dialing Method and gateway device, can, in the situation that not affecting subscriber dialing custom, not increasing call delay, realize FXO and call out.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A Dialing Method, is applied in IP-based voice communication VOIP telephone network, and described VOIP telephone network comprises gateway device, and described gateway device comprises FXS FXS interface and FXO FXO interface, comprising:
When gateway device receives the number of user's dial-out by FXS interface, according to the numbers match FXO interface receiving;
When the match is successful, and to the FXO interface off-hook matching, when receiving the dialing tone of common exchanging telephone network PSTN transmission, the described number receiving is carried out to overlapping dialing by dual tone multi-frequency dtmf mode by the FXO interface matching;
When determine receiving number that described user transfers to and finished, carry out FXS interface and is connected with the time slot of FXO interface, and to described user, send ring-back tone and it is waited for converse.
A gateway device, can be applicable in IP-based voice communication VOIP telephone network, and described gateway device comprises: receiving element, matching unit, transmitting element, determining unit and processing unit;
Described receiving element, for receiving by FXS FXS interface the number that user transfers to; By FXO FXO interface, receive the dialing tone that common exchanging telephone network PSTN sends;
Described matching unit, for the numbers match FXO interface receiving by FXS interface according to described receiving element;
Described transmitting element, for when described matching unit is when the match is successful, to the FXO interface off-hook matching, when described receiving element receives the dialing tone of PSTN transmission by FXO interface, the described number receiving is carried out to overlapping dialing by dual tone multi-frequency dtmf mode by the FXO interface matching;
Described determining unit, whether the number that receives described user's dial-out for definite described receiving element finishes;
Described processing unit, while having finished for determine to receive number that described user transfers to when described determining unit, carries out FXS interface and is connected with the time slot of FXO interface, and to described user, sends ring-back tone and it is waited for converse.
In sum, the application is by when receiving the number of user's dial-out, to the numbers match by receiving to FXO interface off-hook and carry out overlapping dialing, until just carrying out FXS interface while finishing, receiving number is connected with the time slot of FXO interface, can, in the situation that not affecting subscriber dialing custom, not increasing call delay, realize FXO and call out.
Accompanying drawing explanation
Fig. 1 is typical VOIP telephone system structural representation;
Fig. 2 is the schematic flow sheet of Dialing Method in the embodiment of the present invention;
Fig. 3 is the schematic flow sheet of Dialing Method in the specific embodiment of the invention;
Fig. 4 is applied to the structural representation of the gateway device of FXO during dialing in the specific embodiment of the invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, scheme of the present invention is described in further detail.
In the embodiment of the present invention, propose a kind of method of FXO dialing, can, in the situation that not affecting subscriber dialing custom, not increasing call delay, realize FXO and call out.The method is applied in VOIP telephone network, and described VOIP telephone network comprises gateway device, and described gateway device comprises FXS interface and FXO interface.
Referring to Fig. 2, Fig. 2 is the schematic flow sheet of Dialing Method in the embodiment of the present invention.Concrete steps are:
While receiving first number that user transfers in the embodiment of the present invention, start according to the numbers match FXO interface receiving, mate when unsuccessful, wait for while receiving second number, first number and second number are together removed to mate FXO interface.The process of coupling is: according to the number inquiry call routing receiving, wherein call routing and number are pre-configured binding relationship, when the outgoing interface of the call routing inquiring is FXO interface when unique, determines that the match is successful.When specific implementation, the match is successful need to receive several numbers ability, sees concrete applied environment and realize configuration.
When the match is successful, to PSTN, carry out off-hook operation, when receiving the dialing tone of PSTN transmission, the number receiving is carried out to overlapping dialing by DTMF mode by the FXO interface matching, gateway device is just when receiving the number of user's dial-out like this, by FXO interface, dial, namely overlapping dialing.
When the number that this step is transferred to definite user of reception has finished, just carry out FXS interface and be connected with the time slot of FXO interface, avoid like this occurring that number is offset, repeats the situation of dialing or number loss.The ring-back tone sending to described user in this step can be the local transmission of gateway device, can be also that the ring-back tone that PSTN is sent is transmitted to described user.
Below in conjunction with accompanying drawing, lift specific embodiment, describing the present invention in detail is how to realize FXO dialing.Referring to Fig. 3, Fig. 3 is the schematic flow sheet of Dialing Method in the specific embodiment of the invention.Concrete steps are:
In this step, gateway device determines whether to enter overlapping dialing process, determines whether to match FXO interface, and starts to dial to PSTN by this FXO interface.
In the embodiment of the present invention when starting to receive number, while not matching FXO interface, by the first buffer memory of the number receiving, even and if started overlapping dialing and also must dial by PSTN receiving ability, therefore, to the number of failing to pull in time first buffer memory in order, in the time of can sending, then from buffer memory, send in order.
When gateway device, determine and to enter overlapping dialing process, and in buffer queue not during buffer memory number, the number of current reception is directly carried out to overlapping dialing.
While having the number not sending in buffer queue, the number of current reception is sequentially carried out to buffer memory by reception.
In this step, according to the numbers match FXO interface that receives, until the match is successful, comprise: while receiving a number, according to this number inquiry call routing, when the outgoing interface of the call routing inquiring is unique FXO interface, determine that the match is successful; Otherwise, wait for while receiving second number, according to receive two number inquiry call routings, by that analogy, until the match is successful.
The execution of step 308 is with the execution of step 304 and step 307 order in no particular order, when receiving the number that user sends by FXS interface, needs to perform step 308 always and determines whether receiving number finishes
The rule that in this step, definite number that receives described user's dial-out has finished is one of the following or combination:
Default time-out time does not then receive the number that described user transfers to; The number of exact matching receiving number has reached preset value.
When specific implementation, after receiving a number, start timing, when default time-out time then, also do not receive the number that described user transfers to, determine that the number that receives described user's dial-out finishes; Otherwise, continue to wait for the number that receives described user's dial-out.
All right pre-configured exact matching rule, if the number of coupling is 8, when receiving the number of user's dial-out, until receive 8, the number that definite user of reception transfers to finishes; Otherwise continue to wait for the number that receives user's dial-out.
In actual applications, can also be used in conjunction with this two kinds of rules, though such as exact matching be 8, and also do not receive 8 item codes, but wait for that the time that receives next bit number reached default time-out time, also determine that receiving subscriber dialing finishes.
Below in conjunction with Fig. 1, the phone 1 of take in Fig. 1 is realized the process that FXO dials to phone 3 dialing 87654321 for example explanation the present invention.
Gateway device is waited for user's off-hook, dialing, when receiving the number 8 that user transfers to by phone 1 by FXS interface, determine the current overlapping dialing process that do not enter, number 8 is carried out to buffer memory, according to telephone number 8 at local search call routing, when the outgoing interface of the call routing inquiring has a plurality of FXO, wait for and receive next number.
When receiving number 7, determine the current overlapping dialing process that do not enter, number 7 is also carried out to buffer memory, and by reception order buffer memory, in order to avoid there is dialing error situation.Now, according to number 87, at local search call routing, when the outgoing interface of the call routing inquiring has a plurality of FXO interface, wait for and receive next number.When the outgoing interface of the call routing inquiring has unique FXO interface, to the described FXO interface off-hook inquiring, when receiving the dialing tone of PSTN transmission, by 8, by DTMF mode, by the FXO interface inquiring, carry out overlapping dialing, when dialing, by PSTN end ability to accept, dial, when number 8 dialing finish, when PSTN ability allows, start 7 in buffer memory by the FXO interface inquiring, to carry out overlapping dialing by DTMF mode.
Gateway device continues to receive by FXS interface the number that user transfers to simultaneously, receive at 6 o'clock, determine the current overlapping dialing process that entered, determine in current cache and whether have number not carry out overlapping dialing, now number 7 or 8,7 whether in buffer memory, if so, the number of reception 6 is carried out to buffer memory; Otherwise, directly number 6 is carried out to overlapping dialing.The processing procedure of number 5,4,3,2,1 is similar with 6, gives an example no longer one by one here.
If configuration here is that exact matching rule determines that receiving number finishes, until receive number 1, determine that receiving the number that user transfers to finishes.Now, the time slot that carries out FXO and FXS is connected, and to described user, sends ring-back tone and make it wait for call.Until after the number receiving 1 is also sent, start to converse.
Therefore, in specific embodiments of the invention, the time of receiving number and time of sending number are become parallelly from serial, greatly saved user from dialing in to the stand-by period that receives ring-back tone.
Inventive concept based on same in the specific embodiment of the invention, also proposes a kind of gateway device, can be applicable in VOIP telephone network.Referring to Fig. 4, Fig. 4 is applied to the structural representation of the gateway device of FXO during dialing in the specific embodiment of the invention.This gateway device comprises: receiving element 401, matching unit 402, transmitting element 403, determining unit 404 and processing unit 405.
Receiving element 401, for receiving by FXS interface the number that user transfers to; By FXO interface, receive the dialing tone that PSTN sends.
Transmitting element 403, when when matching unit 402, the match is successful, to the FXO interface off-hook matching; When receiving element 401 receives the dialing tone of PSTN transmission by FXO interface, the described number receiving is carried out to overlapping dialing by DTMF mode by the FXO interface matching.
Determining unit 404, for determining whether the number that the described user of receiving element 401 reception transfers to finishes.
Preferably,
Determining unit 404, when being further used for receiving element 401 and receiving by FXS interface the number that user transfers to, determine whether to enter overlapping dialing process, if so, trigger transmitting element 403 the current number receiving is carried out to overlapping dialing by DTMF mode by FXO interface; Otherwise, the operation of the numbers match FXO interface that the described basis of triggering matching unit 402 execution receives.
Preferably, this gateway device further comprises: buffer unit 406.
Determining unit 404, be further used for when determining while entering overlapping dialing process, determine and in buffer unit 406, whether have the number that does not carry out overlapping dialing, if so, trigger transmitting element 403 execution and the number in described buffer memory is carried out to the operation of overlapping dialing by DTMF mode by described FXO interface; Otherwise, trigger transmitting element 403 execution and the number of current reception carried out to the operation of overlapping dialing by DTMF mode by described FXO interface.
Preferably,
Preferably,
Determining unit 404, the rule that definite number that receives described user's dial-out has finished is one of the following or combination: default time-out time does not then receive the number of described user's dial-out, the number of exact matching receiving number has reached preset value.
The unit of above-described embodiment can be integrated in one, and also can separatedly dispose; A unit can be merged into, also a plurality of subelements can be further split into.
In sum, while receiving the number of user's dial-out in the specific embodiment of the invention, according to the numbers match FXO interface receiving, when matching unique FXO interface, the number starting having received by this FXO interface carries out overlapping dialing, can in the situation that not affect subscriber dialing custom, not increasing call delay, realize FXO and call out, greatly saved user from dialing in to the stand-by period that receives dialing tone.
When receiving number finishes, just carry out FXS interface and be connected with the time slot of DXO interface, make user wait for call, can avoid occurring that number is offset, repeats the situation of dialing or number loss.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a Dialing Method, is applied in IP-based voice communication VOIP telephone network, and described VOIP telephone network comprises gateway device, and described gateway device comprises FXS FXS interface and FXO FXO interface, it is characterized in that, comprising:
When gateway device receives the number of user's dial-out by FXS interface, according to the numbers match FXO interface receiving;
When the match is successful, and to the FXO interface off-hook matching, when receiving the dialing tone of common exchanging telephone network PSTN transmission, the described number receiving is carried out to overlapping dialing by dual tone multi-frequency dtmf mode by the FXO interface matching;
When determine receiving number that described user transfers to and finished, carry out FXS interface and is connected with the time slot of FXO interface, and to described user, send ring-back tone and it is waited for converse;
Wherein, the numbers match FXO interface that described basis receives, comprising:
While receiving a number, according to this number inquiry call routing, when the outgoing interface of the call routing inquiring is unique FXO interface, determine that the match is successful; Otherwise, wait for while receiving second number, according to receive two number inquiry call routings, by that analogy, until the match is successful.
2. method according to claim 1, is characterized in that, after described gateway device receives the number of described user's dial-out by FXS interface, described according to before the numbers match FXO interface receiving, described method further comprises:
Determine whether to enter overlapping dialing process, if so, the current number receiving is carried out to overlapping dialing by DTMF mode by FXO interface; Otherwise, according to the numbers match FXO interface receiving.
3. method according to claim 2, described gateway device receives by FXS interface the number that described user transfers to, and current not when overlapping dialing process, and described method further comprises: the number of reception is carried out to buffer memory;
Described determine enter overlapping dialing process after, by the described number receiving by DTMF mode by before the overlapping dialing of FXO interface, described method further comprises:
Determine in buffer memory whether have the number that does not carry out overlapping dialing, if so, the number in described buffer memory is carried out to overlapping dialing, the current number receiving is carried out to buffer memory; Otherwise, the number of current reception is carried out to overlapping dialing by DTMF mode by described FXO interface.
4. according to the method described in claim 1-3 any one, it is characterized in that, the rule that the number that the described user of described definite reception transfers to has finished is one of the following or combination:
Default time-out time does not then receive the number that described user transfers to;
The number of exact matching receiving number has reached preset value.
5. a gateway device, can be applicable to, in IP-based voice communication VOIP telephone network, it is characterized in that, described gateway device comprises: receiving element, matching unit, transmitting element, determining unit and processing unit;
Described receiving element, for receiving by FXS FXS interface the number that user transfers to; By FXO FXO interface, receive the dialing tone that common exchanging telephone network PSTN sends;
Described matching unit, for the numbers match FXO interface receiving by FXS interface according to described receiving element;
Described transmitting element, for when described matching unit is when the match is successful, to the FXO interface off-hook matching, when described receiving element receives the dialing tone of PSTN transmission by FXO interface, the described number receiving is carried out to overlapping dialing by dual tone multi-frequency dtmf mode by the FXO interface matching;
Described determining unit, whether the number that receives described user's dial-out for definite described receiving element finishes;
Described processing unit, while having finished for determine to receive number that described user transfers to when described determining unit, carries out FXS interface and is connected with the time slot of FXO interface, and to described user, sends ring-back tone and it is waited for converse;
Wherein, described matching unit, specifically for when described receiving element receives a number, according to this number inquiry call routing, when the outgoing interface of the call routing inquiring is unique FXO interface, determines that the match is successful; Otherwise, when described receiving element receives second number, according to receive two number inquiry call routings, by that analogy, until the match is successful.
6. gateway device according to claim 5, is characterized in that,
Described determining unit, when being further used for described receiving element and receiving by FXS interface the number that user transfers to, determine whether to enter overlapping dialing process, if so, triggering described transmitting element carries out and described the current number receiving is carried out to overlapping dial-up operation by DTMF mode by FXO interface; Otherwise, trigger the operation that described matching unit is carried out the numbers match FXO interface that described basis receives.
7. gateway device according to claim 6, is characterized in that, described gateway device further comprises: buffer unit;
Described buffer unit, for receiving by FXS interface the number that user transfers to when described receiving element, and described determining unit determines currently not when overlapping dialing process, and the number of reception is carried out to buffer memory;
Described determining unit, be further used for when determining while entering overlapping dialing process, determine and in described buffer unit, whether have the number that does not carry out overlapping dialing, if so, trigger described transmitting element execution and the number in described buffer memory is carried out to the operation of overlapping dialing by DTMF mode by described FXO interface; Otherwise, trigger described transmitting element execution and the number of current reception carried out to the operation of overlapping dialing by DTMF mode by described FXO interface.
8. according to the gateway device described in claim 5-7 any one, it is characterized in that,
Described determining unit, the rule that definite number that receives described user's dial-out has finished is one of the following or combination:
Default time-out time does not then receive the number that described user transfers to;
The number of exact matching receiving number has reached preset value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210244198.9A CN102739884B (en) | 2012-07-16 | 2012-07-16 | Dialing method and gateway equipment |
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| CN201210244198.9A CN102739884B (en) | 2012-07-16 | 2012-07-16 | Dialing method and gateway equipment |
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| CN102739884A CN102739884A (en) | 2012-10-17 |
| CN102739884B true CN102739884B (en) | 2014-03-26 |
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| CN107959620B (en) * | 2017-12-11 | 2020-08-11 | 日立楼宇技术（广州）有限公司 | Fully mechanized mining equipment identification method, device, system, gateway and storage medium |
| CN113645358B (en) * | 2021-08-09 | 2023-08-29 | 迈普通信技术股份有限公司 | Voice interface detection device, system and method |
| CN117376467A (en) * | 2022-06-30 | 2024-01-09 | 深圳市中兴微电子技术有限公司 | Data processing method, device and computer storage medium |
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| CN101729699A (en) * | 2008-10-25 | 2010-06-09 | 华为技术有限公司 | Separation equipment and method for transmitting voice signal |
| CN102158613A (en) * | 2011-04-06 | 2011-08-17 | 杭州华三通信技术有限公司 | Call transfer method and equipment |
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| CN1248866A (en) * | 1998-01-08 | 2000-03-29 | 松下电器产业株式会社 | Fixed subscriber unit for radio local loop system |
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| TW576086B (en) * | 2002-09-17 | 2004-02-11 | Ambit Microsystems Corp | Voice over Internet protocol device |
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