CN101742010B - A network-extension is made to dial method and the device of a traditional extension - Google Patents

A network-extension is made to dial method and the device of a traditional extension Download PDF

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CN101742010B
CN101742010B CN200810181636.5A CN200810181636A CN101742010B CN 101742010 B CN101742010 B CN 101742010B CN 200810181636 A CN200810181636 A CN 200810181636A CN 101742010 B CN101742010 B CN 101742010B
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extension
network
traditional
dial
signal
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CN101742010A (en
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黄绍华
林耕宇
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Institute for Information Industry
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Abstract

The present invention is a kind of method, device and computer program product thereof of making a network-extension dial a traditional extension.This device comprises a session initiation protocol proxy server and a RTP repeater.This session initiation protocol proxy server receives a Dialog request from this network-extension, the traditional extension number comprised in this Dialog request is replaced with a general number, and the Dialog request after this replacement is sent to the network gateway that has this general number, so that this network gateway transmits Dialog request to the voice automaton after this replacement through a telephone exchange.This RTP repeater transmits this traditional extension number of a dual-tone multifrequency form to this network gateway.This network-extension is made to dial this traditional extension with lower hardware cost by this.

Description

A network-extension is made to dial method and the device of a traditional extension
Technical field
The invention relates to a kind of method, device and the computer program product thereof that make a network-extension dial a traditional extension; Particularly a kind of a kind of method, device and computer program product thereof making a network-extension dial a traditional extension not needing the pure network switch (IP-PBX) configuring costliness.
Background technology
Industry company all adopted the black phone/traditional extension of conventional telecommunications framework to link up to carry out contact to external client/intra-company in the past.Conventional telecommunications framework is by a telephone exchange (privatebranchexchange; PBX) realize, externally through a Public Switched Telephone Network (as Hinet) to carry out the exchange of speech data, be internally then connected to in-company traditional extension.
Public Switched Telephone Network has Circuit-switched characteristic.In other words, in the process that both sides link up, the black phone end at two ends sets up exclusive meeting telephone circuit by a telephone wire, and other session with the time cannot carry out voice data transmission by this telephone wire.For the frequent session between branch company of enterprise or between intra-company and external client, then must to Hinet application multiple phone line, to avoid because the same time causes both sides to set up session without idle telephone wire.For this reason, industry company must pay a no small amount of money.For cutting operating costs, how to reduce the subject under discussion that communication fee becomes important gradually, also therefore developing a networking telephone (viceoverIP; VoIP) technology.
The networking telephone is a kind of technology of dividing into groups with transmission/reception digitize voice through the Internet.As black phone tap traditional extension, the networking telephone also can by by a procotol telephone exchange (Internetprotocolprivatebranchexchange; IPPBX) internal point picks out many network-extensions.Be different from black phone/traditional extension must be limited to telephone wire can and scope, as long as there is network can set up the networking telephone/network-extension where, therefore its scope that can configure is more vast.
Many companies of current industry tend to set up the enterprise phone network that traditional extension and network-extension co-exist in, to hold the network-extension of already present traditional extension and lower cost.But, how to make the traditional extension in enterprise phone network and network-extension mutually dial the important topic of technical field for this reason.
Refer to Fig. 1, it illustrates the enterprise phone network 1 comprising traditional extension and network-extension.This enterprise phone network 1 comprises Public Switched Telephone Network 15, heterogeneous network protocol phone switch 11, the Internet 13, traditional extension 14a, 14b and network-extension 12a, 12b.Heterogeneous network protocol phone switch 11 is the aspects after traditional telephone exchange HardwareUpgring, and network-extension 12a, 12b can be made to dial traditional extension 14a, 14b through the Internet 13 and heterogeneous network protocol phone switch 11.Meanwhile, network-extension 12a, 12b also can pass through the externally session of network 13, hybrid network protocol phone switch 11 and Public Switched Telephone Network 15.But the price of heterogeneous network protocol phone switch 11 about tens million of unit to several hundred million unit, therefore only has the enterprise of minority to bear.
It can thus be appreciated that, how to provide one can maintain session quality simultaneously, do not need again the network-extension that makes of expensive cost to dial the technology of traditional extension, for this reason the target jointly expected of technical field.
Summary of the invention
An object of the present invention is to provide a kind of device making a network-extension dial a traditional extension.One enterprise phone network packet is containing this network-extension and this traditional extension.This network-extension has a network-extension number; This traditional extension has a traditional extension number.
For reaching above-mentioned purpose, this device comprises a session initiation protocol proxy server (sessioninitiationprotocolproxy; And a RTP repeater (real-timetransportprotocolrelay SIPproxy); RTPrelay).This session initiation protocol proxy server is in order to receive a Dialog request from this network-extension, and this Dialog request comprises this traditional extension number.This session initiation protocol proxy server is in order to replace this traditional extension number in this Dialog request with a general number of this enterprise phone network, and there is in order to the Dialog request to after transmitting this replacement according to this general number the network gateway of this general number, so that this network gateway, because of the Dialog request after should replacing, transmits ringing signal to voice automaton through a telephone exchange.
This session initiation protocol proxy server is also in order to receive a confirmation signal from this network gateway, and this confirmation signal represents that this voice automaton replies this ringing signal.This session initiation protocol proxy server in order to transmit this confirmation signal to this network-extension, in order to receive a response signal from this network-extension, and in order to transmit this response signal to this network gateway.This response signal is this network-extension because of should confirmation signal and producing.This session initiation protocol proxy server is also in order to transmit a corresponding relation of this traditional extension number and this network-extension number, and this RTP repeater receives this corresponding relation and stores this corresponding relation.
Another object of the present invention is to provide a kind of method making a network-extension dial a traditional extension.One enterprise phone network packet is containing this network-extension and this traditional extension.This network-extension has a network-extension number; This traditional extension has a traditional extension number.
For reaching above-mentioned purpose, the method includes the steps of: (a) receives a Dialog request from this network-extension, and this Dialog request comprises this traditional extension number; B this traditional extension number in this Dialog request replaces with a general number of this enterprise phone network by (); C (), according to this general number, the Dialog request to transmitted after this replacement has the network gateway of this general number, so that this network gateway transmits ringing signal to voice automaton because of the Dialog request after should replacing through a telephone exchange; D () receives a confirmation signal from this network gateway, this confirmation signal represents that this voice automaton replies this ringing signal; E () transmits this confirmation signal to this network-extension; F () receives a response signal from this network-extension, this response signal is this network-extension because of should confirmation signal and producing; And (g) transmits this response signal to this network gateway.
Another object of the present invention is to provide a kind of computer program product, a kind of program making a network-extension dial a traditional extension of storage in this computer program product.After this program is loaded a microprocessor, this microprocessor is made to perform multiple program command.The network-extension that makes that these program command make this microprocessor complete described in leading portion dials the method for a traditional extension.
From the above, the present invention is the function making session initiation protocol proxy server have number in the order of displacement news, and makes RTP repeater have a generation dual-tone multifrequency (dualtonemultifrequency; The mechanism of DTMF) dividing into groups.Accordingly, the present invention only needs newly-increased session initiation protocol proxy server and RTP repeater, can replace the function of the hybrid network protocol phone switch of prior art, therefore significantly can reduce the cost of hardware configuration.
Accompanying drawing explanation
For above-mentioned purpose of the present invention, technical characteristic and advantage can be become apparent, below cooperation accompanying drawing is described in detail to preferred embodiment of the present invention, wherein:
Fig. 1 is the schematic diagram of the enterprise phone network describing prior art;
Fig. 2 is the schematic diagram of description first embodiment; And
Fig. 3 A and Fig. 3 B is the schematic diagram of description second embodiment.
Embodiment
The invention relates to and make a network-extension dial the device of a traditional extension, method and computer program product thereof.Compared to prior art, device provided by the present invention, method and computer program product thereof reduce the cost that network-extension dials traditional extension.Following embodiment illustrates content of the present invention, and be not used to limit the present invention.Need expositor, in following examples and accompanying drawing, element unrelated to the invention omits and does not illustrate, and in accompanying drawing, each interelement size relationship is only and asks easy understanding, is not used to limit actual ratio.
Refer to Fig. 2, it is the enterprise phone network 2 according to the first embodiment of the present invention.This enterprise phone network 2 comprises network-extension 21, traditional extension 22, makes network-extension dial device 23 (hereinafter referred to as dialing device 23), network gateway 24, telephone exchange 25 and a voice automaton 26 of traditional extension.Wherein, dial device 23 and comprise a session initiation protocol proxy server (SessionInitiationProtocolProxy; SIPProxy) a 23a and RTP repeater (Real-timeTransportProtocolRelay; RTPRelay) 23b.Network-extension 21, traditional extension 22, network gateway 24, telephone exchange 25 and voice automaton 26 is the standard hardware equipment in art, therefore does not describe in detail.
The person of should be noted, if this enterprise phone network 2 is arranged at a school, then this enterprise phone network 2 only needs configuration one to dial device 23, but, other implement aspect enterprise phone network other number configurable dial device 23, to avoid when one is dialed the communicating interrupt caused when device 23 cannot operate.In other words, dial the number of device 23 and be not used to limit the scope of the invention.
Network-extension 21 has a network-extension number (such as 6000), and traditional extension 22 has a traditional extension number (such as 2025).First, when a user is for utilizing network-extension 21 and traditional extension 22 session, user presses in network-extension 21 the traditional extension number (namely 2025) that traditional extension 22 has.After user presses traditional extension number (namely 2025), namely network-extension 21 produces a Dialog request 201, and this Dialog request 201 comprises the traditional extension number (namely 2025) that traditional extension 22 has.Session initiation protocol proxy server 23a then automatic network extension set 21 receives this Dialog request 201.In the present embodiment, this Dialog request 201 is the invitation news order of network telephony architecture Plays, and its content is " invite2025... ".Art possesses knows that the knowledgeable should know the invitation news order in network telephony architecture usually, therefore does not repeat.
Session initiation protocol proxy server 23a, after this Dialog request 201 of reception, transmits corresponding relation 202 to a RTP repeater 23b of network extension (namely 6000) and traditional extension number (namely 2025).RTP repeater 23b then stores the corresponding relation of this network-extension number (namely 6000) and traditional extension number (namely 2025).Afterwards, RTP repeater 23b, in response to this corresponding relation 202, distributes an internet address (IPaddress) and the Single port (port) of RTP channel.RTP repeater 23b also transmits distributing signal 203 to the session initiation protocol proxy server 23a comprising this internet address and this port, using the foundation mutually transmitted as subsequent voice packets between network-extension 21 and traditional extension 22.
Then, the traditional extension number (namely 2025) in Dialog request 201 replaces with a general number (such as 0282122000) of enterprise phone network 2 by session initiation protocol proxy server 23a.With the present embodiment, the Dialog request 201 ' after replacement is also the invitation news order of network telephony architecture Plays, and its content is " invite0282122000... ".Then, the Dialog request 201 ' after replacing, according to general number (namely 0282122000), is sent to the network gateway 24 with this general number by session initiation protocol proxy server 23a.Session initiation protocol proxy server 23a also transmits trial signal 204 a to network-extension 21, has started to process its Dialog request 201 at present with informing network extension set 21.In the present embodiment, this attempts the standard trial news order that signal 204 is network telephony architecture, and its content is " 100trying ".Art possesses knows that the knowledgeable should know the standard trial news order of network telephony architecture usually, therefore does not describe in detail.
On the other hand, after network gateway 24 receives the Dialog request 201 ' that session initiation protocol proxy server 23a transmits, network gateway 24 transmits one first ringing signal 205a to voice automaton 26 through telephone exchange 25.Specifically, network gateway 24 first transmits the first ringing signal 205a to telephone exchange 25, and telephone exchange 25 transmits this first ringing signal 205a again to voice automaton 26.Afterwards, network gateway 24 transmits one second ringing signal 205b to session initiation protocol proxy server 23a, and session initiation protocol proxy server 23a transmits this second ringing signal 205b again to network-extension 21.Now, what phone heard by the receiver from network-extension 21 by the user of network-extension 21 thinks the tinkle of bells.Aforementioned second ringing signal 205b is the standard jingle bell news order of network telephony architecture, and its content is " 183Ringing " or " 180Ringing ".Art possesses knows that the knowledgeable should know the standard jingle bell news order of network telephony architecture usually, therefore does not describe in detail.
When voice automaton 26 detects the first ringing signal 205a, automatically connect phone (offhook) and play greeting.Conventional switch 25 can detect that voice automaton 26 has connect the circuit operation 213 of phone, and through conventional switch 25, network gateway 24 detects that voice automaton 26 has connect the circuit operation 213 of phone afterwards.
In response to detecting that voice automaton 26 has connect the circuit operation 213 of phone, network gateway 24 transmits confirmation signal 206 to a session initiation protocol proxy server 23a, and this confirmation signal 206 represents that voice automaton 26 replies the first ringing signal 205a.Session initiation protocol proxy server 23a automatic network gateway 24 receives this confirmation signal 206, then transmits this confirmation signal 206 to network-extension 21.In the present embodiment, confirmation signal 206 is that the standard of network telephony architecture confirms news order, and its content is " 200OK ".Art possesses knows that the knowledgeable should know the standard confirmation news order of network telephony architecture usually, therefore does not describe in detail.
After network-extension 21 confirmation of receipt signal 206, produce a response signal 207 in response to this confirmation signal 206, this response signal 207 comprises traditional extension number (namely 2025).Session initiation protocol proxy server 23a then automatic network extension set 21 receives this response signal 207.In the present embodiment, response signal 207 is the normal response news order of network telephony architecture, its content micro-" ACK2025... ".Art possesses knows that the knowledgeable should know the normal response news order of network telephony architecture usually, therefore does not describe in detail.Session initiation protocol proxy server 23a is after reception response signal 207, with the traditional extension number (namely 2025) that general number (namely 0282122000) replacement response signal 207 comprises, again according to general number, the response signal 207 ' after replacing is sent to network gateway 24.With the present embodiment, the content of this response signal 207 ' is " ACK0282122000... ".
Afterwards, the traditional extension number (namely 2025) dialed by network-extension 21 of RTP repeater 23b is with dual-tone multifrequency (dualtonemultifrequency; DTMF) form is expressed, to produce an audio mail 208.Specifically, this audio mail 208 is a RTP (realtimetransport; RTP) divide into groups, its content comprises DTMF=2025.RTP repeater 23b then transmits this audio mail 208 to network gateway 24.This analog signal 208 ' is sent to voice automaton 26 through telephone exchange 25 after audio mail 208 being converted to the analog signal 208 ' of a dual-tone multifrequency form by network gateway 24.Need expositor, this analog signal 208 ' is essentially the keypad tone of traditional extension number (namely 2025).After voice automaton 26 receives this analog signal 208 ', traditional extension 22 can be forwarded to.Now, traditional extension 22 will send incoming call jingle bell, and when another user has connect traditional extension 22, both sides just can start session.
When both sides' session, network-extension 21 is according to internet address distributed before and port, transmits RTP grouping 214 to the network gateway 24 of digital form through RTP repeater 23b.Network gateway 24 is sent to traditional extension 22 through telephone exchange 25 after the RTP of digital form grouping 214 is converted to analog voice grouping 214 '.Same, the analog voice grouping 214 ' that traditional extension 22 also can transmit by network gateway 24 is converted to the RTP grouping 214 of digital form, then is sent to network-extension 21 through RTP repeater 23b.
When using the user of black phone 22 to hang up the telephone (terminating both sides' session), network gateway 24 can detect the hang-up signal 215 from black phone 22.In response to this hang-up signal 215 being detected, network gateway 24 transmits an end session requirement 209, and this end session requirement 209 comprises the general number (namely 0282122000) that network gateway 24 has.In the present embodiment, end session requirement 209 is that the standard of network telephony architecture terminates news order, and its content is " BYE0282122000... ".
Session initiation protocol proxy server 23a, after receiving this end session requirement 209, replaces the general number in end session requirement 29 with the network-extension number (namely 6000) of network-extension 21.With the present embodiment, the content of the end session requirement 209 ' after replacement is " BYE6000... ".Then, the end session after replacing, according to network-extension number (namely 6000), is required that 209 ' is sent to network-extension 21 by session initiation protocol proxy server 23a.End session requirement 209 ' end after network-extension 21 replaces according to this and the session between traditional extension 22.Then, network-extension 21 transmits confirmation signal 210 to a session initiation protocol proxy server 23a, session initiation protocol proxy server 23a receive after, by be sent to network gateway 24.This confirmation signal 210 is that the standard of network telephony architecture confirms news order, and its content is " 200OK ".So namely finish the session of network-extension 21 and traditional extension 22.
From the above, traditional extension number in Dialog request 201 is substituted by general number through session initiation protocol proxy server 23a by the first embodiment, produce the audio mail 208 comprising DTMF=2025 again through RTP repeater 23b, network-extension 21 can be made to dial traditional extension 22.Compared to the pure network switch (IP-PBX) of existing direct deployment cost costliness, the present invention can complete the technology that network-extension dials traditional extension with lower cost.
The second embodiment of the present invention is the method making a network-extension dial a traditional extension, and its flow chart is depicted in Fig. 3 A and Fig. 3 B.The method of the second embodiment is applicable to session initiation protocol proxy server 23a as described for the first embodiment and RTP repeater 23b.The step that Fig. 3 A paints is divided into two hurdles, and wherein left hurdle is performed by session initiation protocol proxy server 23a, and right hurdle is then performed by RTP repeater 23b.The step that Fig. 3 B describes then all is performed by session initiation protocol proxy server 23a.
As in the first embodiment, session initiation protocol proxy server 23a and RTP repeater 23b is contained in an enterprise phone network.As the first embodiment, this enterprise phone network also comprises network-extension, traditional extension, network gateway, telephone exchange and voice automaton.Network-extension and traditional extension have a network-extension number and a traditional extension number respectively.
First second embodiment performs step 301, and make session initiation protocol proxy server 23a automatic network extension set receive a Dialog request, this Dialog request comprises the traditional extension number that traditional extension has.Then, in step 302, make session initiation protocol proxy server 23a after reception Dialog request, transmit a corresponding relation of network extension and traditional extension number to RTP repeater 23b.
Then, in step 303, RTP repeater 23b is made to receive aforesaid corresponding relation; In step 304, store this corresponding relation.The method then performs step 305, makes RTP repeater 23b in response to this corresponding relation, distributes an internet address and the Single port of RTP channel.Then, perform step 306, make RTP repeater 23b transmission comprise a distributing signal of internet address and port to session initiation protocol proxy server 23a.
Second embodiment is in step 307, and the traditional extension number in the Dialog request that step 301 is received by session initiation protocol proxy server 23a replaces with a general number of enterprise phone network.Then perform step 308, make session initiation protocol proxy server 23a according to general number, the Dialog request to transmitted after replacing has the network gateway of this general number.In step 309, make session initiation protocol proxy server 23a transmit one and attempt signal to network-extension, started at present to process its Dialog request with informing network extension set.
On the other hand, after step 308, the network gateway with this general number in response to the channel requirements after this replacement, can transmit a ringing signal to voice automaton through telephone exchange.When voice automaton detects ringing signal, automatically connect phone and play greeting.Conventional switch can detect that voice automaton has connect the circuit operation of phone, and through conventional switch, network gateway detects that voice automaton has connect the circuit operation of phone afterwards.In response to detecting that voice automaton has connect the circuit operation of phone, network gateway transmits a confirmation signal to session initiation protocol proxy server 23a.
The method then performs step 310, and make session initiation protocol proxy server 23a automatic network gateway confirmation of receipt signal, wherein, this confirmation signal represents that voice automaton replies this Dialog request.Then perform step 311, make session initiation protocol proxy server 23a transmit this confirmation signal to network-extension.In step 312, make session initiation protocol proxy server 23a automatic network extension set receive a response signal, this response signal is that network-extension produces in response to confirmation signal, and this response signal comprises the number of traditional extension.In step 313, make session initiation protocol proxy server 23a replace traditional extension number in response signal with general number, and by be sent to network gateway.
Then perform step 314, traditional extension number is expressed, to produce an audio mail with dual-tone multifrequency form by RTP repeater 23b.This audio mail is a RTP grouping.Then perform step 315, make RTP repeater 23b transmit this audio mail to network gateway.Afterwards, network-extension and traditional extension can conversate.
When both sides' conversation end, in step 316, make session initiation protocol proxy server 23a automatic network gateway receive an end session requirement, the requirement of this end session comprises the general number that network gateway has.Then perform step 317, make session initiation protocol proxy server 23a replace the general number in end session requirement with network-extension number.Then perform step 318, make session initiation protocol proxy server 23a be required to be sent to network-extension by the end session after replacement.Then perform step 319, make session initiation protocol proxy server 23a automatic network extension set receive a confirmation signal.Finally perform step 320, make session initiation protocol proxy server 23a transmit confirmation signal to network gateway.So namely finish the session of network-extension and traditional extension.
Except above-mentioned steps, the second embodiment also can perform the action of the Radio Network System of the first embodiment and the function that has of the Radio Network System also with the first embodiment.Art have usually know the knowledgeable can be directly acquainted with the second embodiment how based on the Radio Network System of above-mentioned first embodiment to perform these operations, therefore not repeat.
The third embodiment of the present invention is a kind of computer program product, and a kind of program making a network-extension dial a traditional extension of interior storage, an enterprise network comprises this network-extension and this traditional extension.After a microprocessor loads this program, multiple instruction can be performed, to complete the step described in aforementioned second embodiment.
3rd embodiment computer program product can be read-only memory (readonlymemory; ROM), flash memory, floppy disk, hard disk, CD, Portable disk, tape, can by the database of network access, or art has other Storage Media any with identical function usually known and know known to the knowledgeable.
Comprehensively above-mentioned, the present invention makes session initiation protocol proxy server that the traditional extension number in Dialog request is substituted by the general number of enterprise network, make RTP repeater produce the traditional extension number of dual-tone multifrequency form again, and by be sent to network gateway.Accordingly, the present invention only needs newly-increased session initiation protocol proxy server and RTP repeater, and existing telephone switchboard of arranging in pairs or groups can make network-extension dial traditional extension.Complete network-extension with hybrid network protocol phone switch dial traditional extension compared to existing, the present invention obviously significantly reduces costs.
The above embodiments are only used for exemplifying enforcement aspect of the present invention, and explain technical characteristic of the present invention, are not used for limiting protection category of the present invention.Anyly be familiar with this operator and the arrangement of unlabored change or isotropism can all belong to the scope that the present invention advocates, the scope of the present invention should be as the criterion with claim.

Claims (13)

1. make a network-extension dial a method for a traditional extension, an enterprise phone network packet, containing this network-extension and this traditional extension, is characterized in that the method comprises the following step:
A () receives a Dialog request from this network-extension, this Dialog request comprises the traditional extension number that this traditional extension has;
B (), in response to one of network-extension number and traditional extension number corresponding relation, distributes one of RTP (real-timetransportprotocol) channel internet address (IPaddress) and Single port (port);
C () transmits the distributing signal comprising this internet address and this port, make between this network-extension and this traditional extension according to the mutual transmission of voice packets of this distributing signal;
D this traditional extension number in this Dialog request replaces with a general number of this enterprise phone network by ();
E (), according to this general number, the Dialog request to transmitted after this replacement has the network gateway of this general number, so that this network gateway transmits ringing signal to voice automaton because of the Dialog request after should replacing through a telephone exchange;
F () receives a confirmation signal from this network gateway, this confirmation signal represents that this voice automaton replies this ringing signal;
G () transmits this confirmation signal to this network-extension;
H () receives a response signal from this network-extension, this response signal is this network-extension because of should confirmation signal and producing; And
I () transmits this response signal to this network gateway.
2. the method making a network-extension dial a traditional extension according to claim 1, is characterized in that also comprising the following step:
Transmit an audio mail to this network gateway, this audio mail is this traditional extension number of a dual-tone multifrequency form, so that this network gateway transmits this audio mail to this voice automaton through this telephone exchange.
3. the method making a network-extension dial a traditional extension according to claim 2, is characterized in that also comprising the following step:
This traditional extension number is expressed with dual-tone multifrequency form, to produce this audio mail.
4. the method making a network-extension dial a traditional extension according to claim 2, it is characterized in that this response signal comprises this traditional extension number, the method also comprises the following step:
After step (h), replace this traditional extension number in this response signal with this general number.
5. the method making a network-extension dial a traditional extension according to claim 1, it is characterized in that this network-extension has a network-extension number, the method also comprises the following step:
Store a corresponding relation of this network-extension number and this traditional extension number.
6. the method making a network-extension dial a traditional extension according to claim 2, is characterized in that this audio mail is a RTP grouping.
7. the method making a network-extension dial a traditional extension according to claim 2, is characterized in that also comprising the following step:
Receive an end session requirement from this network gateway, this end session requires to comprise this general number;
This general number in this end session requirement is replaced with this network-extension number; And
According to this network-extension number, the end session after this replacement is required to be sent to this network-extension, so that this network-extension terminates and session between this traditional extension.
8. make a network-extension dial a device for a traditional extension, an enterprise phone network packet is containing this network-extension and this traditional extension, and this network-extension has a network-extension number, it is characterized in that this device comprises:
One session initiation protocol proxy server, in order to receive a Dialog request from this network-extension, this Dialog request comprises the traditional extension number that this traditional extension has, in order to this traditional extension number in this Dialog request is replaced with a general number of this enterprise phone network, in order to according to this general number, the Dialog request to one transmitted after this replacement has the network gateway of this general number, so that this network gateway is because of the Dialog request after should replacing, ringing signal to an one voice automaton is transmitted through a telephone exchange, in order to receive a confirmation signal from this network gateway, this confirmation signal represents that this voice automaton replies this ringing signal, in order to transmit this confirmation signal to this network-extension, in order to receive a response signal from this network-extension, in order to transmit this response signal to this network gateway, this response signal is this network-extension because of should confirmation signal and producing, in order to transmit a corresponding relation of this traditional extension number and this network-extension number, and
One RTP repeater, in order to receive this corresponding relation and to store this corresponding relation, and in response to one of network-extension number and traditional extension number corresponding relation, distribute one of RTP channel internet address and Single port, and transmit the distributing signal comprising this internet address and this port, make between this network-extension and this traditional extension according to the mutual transmission of voice packets of this distributing signal.
9. the device making a network-extension dial a traditional extension according to claim 8, it is characterized in that this RTP repeater also in order to transmit an audio mail to this network gateway, this audio mail is this traditional extension number of a dual-tone multifrequency form, so that this network gateway transmits this audio mail to this voice automaton through this telephone exchange.
10. the device making a network-extension dial a traditional extension according to claim 9, is characterized in that this RTP repeater also in order to be expressed with dual-tone multifrequency form, to produce this audio mail by this traditional extension number.
11. devices making a network-extension dial a traditional extension according to claim 9, it is characterized in that this response signal comprises this traditional extension number, after this session initiation protocol proxy server is also used to receive this response signal, replace this traditional extension number in this response signal with this general number.
12. devices making a network-extension dial a traditional extension according to claim 8, is characterized in that this audio mail is a RTP grouping.
13. devices making a network-extension dial a traditional extension according to claim 9, it is characterized in that this session initiation protocol proxy server also in order to receive from this network gateway the end session requirement that comprises this general number, also in order to replace this general number in this end session requirement with this network-extension number, and in order to according to this network-extension number, transmit this end session requirement to this network-extension, so that this network-extension terminates and session between this traditional extension.
CN200810181636.5A 2008-11-27 2008-11-27 A network-extension is made to dial method and the device of a traditional extension Expired - Fee Related CN101742010B (en)

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CN1893483A (en) * 2005-07-06 2007-01-10 中兴通讯股份有限公司 Method for providing virtual telephone exchange service by intelligent network

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1848876A (en) * 2005-04-14 2006-10-18 华为技术有限公司 Method and system for realizing dialing directly of cross-domain user exchanger extension
CN1893483A (en) * 2005-07-06 2007-01-10 中兴通讯股份有限公司 Method for providing virtual telephone exchange service by intelligent network

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