CN1859456B - Binding O port system of external exchanging service port and its realizing method - Google Patents
Binding O port system of external exchanging service port and its realizing method Download PDFInfo
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- CN1859456B CN1859456B CN2005100683786A CN200510068378A CN1859456B CN 1859456 B CN1859456 B CN 1859456B CN 2005100683786 A CN2005100683786 A CN 2005100683786A CN 200510068378 A CN200510068378 A CN 200510068378A CN 1859456 B CN1859456 B CN 1859456B
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Abstract
The present invention discloses external exchange service port binding O port system. It contains telephone equipment, public telephone switching network equipment, IP network equipment, and external exchange service port binding O port equipment including O port state detecting unit, first switching unit and second switching unit. Relative to user only needing freely selecting to IP side speech-sounds application and to PSTN side speech-sounds application. Said Port binding O port method can effectively reduces equipment cost and client use-cost, and solving immediacy switching problem between fixed telephone and IP telephone, at the same time, avoiding the loss generated in speech-sounds from FXS port entering VoIP equipment and from FXO arriving outside wire.
Description
Technical field
The present invention relates to field of telephone communication, relate in particular to a kind of binding O port system of external exchanging service port and its implementation
Background technology
In existing VoIP equipment, use FXS (Foreign eXchange Service, foreign exchange service) port connects ordinary telephone set or fax, use FXO (Foreign eXchange Office, other places exchange) Analog Trunk Interface of the same PSTN of port (Public Switched Telephone Network, PSTN) links to each other.For need be by the voice or the fax of IP network transmission, analog signal after at first will gathering is carried out digitlization, and then handle through overcompression and to become packet and in IP network, transmit, receiving terminal then with compressed data packets elder generation decompress(ion), is reduced into voice and facsimile message then exactly.Fxo port is then simulated ordinary telephone set, realizes intercommunication phone or the IP network voice channel to the PSTN side.
Possesses inner IP network for some, branch is in the enterprise of different cities, can use voip technology, originally needing long-distance call to arrive the another one city by inner IP network by PSTN, the intercommunication phone that connects the branch in this city, can also be connected to simultaneously local PSTN by the FXO mouth of opposite end, realize that long-distance call becomes local telephone network, has saved the expense of enterprise greatly.For example: at the machine of the end in continent dress FXO, make a call the continent from Taiwan, can see through the telephone wire in this machine switching continent.Therefore, when from Taiwan when make a phone call in the continent, cheap just as making a phone call between the city, continent.In addition, the hot line facility that FXO provided can allow the user get to the phone (for example Taibei) on first ground, but the place that actual jingle bell is answered the call is on second ground (for example Shenzhen).If a Tianwan businessman wants a certain service department is moved on to Shenzhen reducing cost, just the FXO machine can be installed in the Taibei, and (for example: on circuit 02-87801234) be connected to Service Phone.The number of the FXS machine that hot line facility is set in the continent then.If there is the user to dial 02-87801234 like this, at the service center in Shenzhen jingle bell at once.The client just can obtain required service as long as paying the local telephone in the Taibei takes like this.
Existing FXO scheme all is directly to use the speech coding decoding chip to add FXO mouth line interface chip to simulate plain old telephone and set up voice channel with PSTN usually, if enterprise has applied for a plurality of PSTN interfaces, just usually said " outside line " just needs many cover devices.Therefore, in highdensity VoIP equipment, expensive device cost just becomes a key factor that hinders VoIP equipment reduction system cost.Though also some VoIP equipment has been realized the function that power down is switched, this equipment can only be according to powering up the connected mode of switching interior and exterior lines with two states of power down, switching that can not be random.Can realize that for hope the long-distance call of inner branch walks VoIP, and local telephone network is walked the enterprise customer of PSTN, this obviously can not satisfy their needs.And most of enterprise customer who adopts or be about to adopt VoIP, main purpose is to wish to reduce the cost of the phone call of each branch of this enterprises, and the demand of dialling local PSTN from the other places by IP is but seldom arranged.
In addition, traditional VoIP equipment does not possess the function of FXS mouth and the binding of FXO mouth, that is to say, the complete conduct of FXS and FXO is passage independently.A problem of this kind design is when VoIP equipment breaks down, the inside line that is connected to all FXS mouths just all can not have been used, even there are many outside lines to be connected on the FXO mouth like this, can not directly use outside line by VoIP equipment, greatly reduce the flexibility of use.
Summary of the invention
The problem to be solved in the present invention provides a kind of binding O port system of external exchanging service port and its implementation, to overcome in the prior art VoIP device looses power or when breaking down, the problem that switches to PSTN side line road how can be seamless.
In order to address the above problem, the invention discloses a kind of binding O port system of external exchanging service port,
Comprise: telephone plant, Public Switched Telephony Network equipment, IP network equipment, also comprise: foreign exchange service port binding O jaws equipment, described telephone plant, Public Switched Telephony Network equipment, IP network equipment all link to each other with described foreign exchange service port binding O jaws equipment;
Wherein, described O mouth is not real FXO mouth, but part has realized the function of fxo port;
Described foreign exchange service port binding O mouth is meant the FXS port and the existing relation one to one of single O cause for gossip of VOIP voice gateways inside;
Described foreign exchange service port binding O jaws equipment comprises: O mouth state detection unit, first switch element,
Described O mouth state detection unit is used to detect the state on the O mouth circuit, and with state notifying CPU, is controlled the connection or the disconnection of described first switch element by CPU;
Described first switch element links to each other with described O mouth state detection unit, and when power down described telephone plant is connected with the O mouth, normal talking when guaranteeing power down.
Also comprise: the second switch unit, link to each other with described O mouth state detection unit with described telephone plant, be used for passing through the foreign exchange service mouth when the telephone plant of the pairing foreign exchange service port of this foreign exchange service port binding O mouth, when in IP network equipment, realizing talk business, stop the O mouth to be called out.
The O mouth line status that O mouth state detection unit can detect comprises: hook state, off hook state, ringing condition or polarity upset state.
The control signal of described first switch element and second switch unit is determined according to the state indication of described O mouth.
Described public telephone switch equipment comprises: PBX or local side telephone exchange.
Described first switch element and second switch unit are electronic switch unit, comprising: relay and transistor switching circuit.
The invention discloses a kind of implementation method of foreign exchange service binding O port mouth, comprising:
The state indication of A, detection telephone plant;
B, according to being connected or disconnection of described state indication control telephone plant and foreign exchange service port and O mouth, wherein,
Described foreign exchange service port binding O mouth is meant the FXS port and the existing relation one to one of single O cause for gossip of VOIP voice gateways inside.
When the user when telephone plant makes a call, also comprise before the steps A:
A11, system detect the user and whether press predefined number;
A12, system switch to the O mouth of binding by control relay, and this moment, user's telephone plant was connected to the public phone exchanges network equipment that links to each other with the O mouth;
Whether A13, cycle detection user's communication finish.
When the user when telephone plant makes a call, step B further comprises:
B11, as detecting user's hook state indication, system switches to telephone plant by control relay and is connected with the foreign exchange service port, disconnects with the binding O mouth;
B12, user dial number available in the IP network equipment;
The O mouth of B13, system binding is set to conducting state, and making when Public Switched Telephony Network equipment is dialed binding O mouth telephone number is busy tone;
B14, user realize conversation, fax and IP value-added service by IP network equipment.
When from public switched telephone network (PSTN) device call telephone plant, steps A further comprises:
A21, system switch to the O mouth of binding by control relay, and this moment, user's phone was connected to the public telephone switch that links to each other with the O mouth, ringing telephone stations;
A22, detect whether off-hook of user;
If A23 user's off-hook enters talking state, system needs when on-hook of cycle detection user.
When from public switched telephone network (PSTN) device call telephone plant, step B further comprises:
B21, as detecting user's on-hook, system switches to telephone plant by control relay and is connected with the foreign exchange service port, disconnects with the binding O mouth;
If B22 user does not have off-hook, systemic circulation detects whether the binding O mouth still has ringing signal generating signal; If bell signal stops, system switches to telephone plant by control relay and is connected with the external business mouth, disconnects with the binding O mouth.
Also comprise before the steps A 21: after system's energising, telephone plant is set is connected, disconnect with the binding O mouth with the foreign exchange service port.
Compared with prior art, the present invention has the following advantages:
The present invention has designed the scheme of FXS port binding O mouth.FXS port binding O mouth is meant the FXS port and the existing relation one to one of single O cause for gossip of VOIP voice gateways inside.O mouth herein is not real FXO mouth, but part has realized the function of fxo port, only need be implemented to IP side voice application in this locality and arrive the demand that PSTN side voice application is freely selected at the user.The method of port binding O mouth can effectively reduce the cost of equipment, thereby reduces client's use cost.
Can solve simultaneously the problem that local telephone network and IP phone can not be switched efficiently.Simultaneously, the present invention can also avoid voice to enter VoIP equipment from the FXS mouth, and then arrives the loss that produces between the outside line from FXO.
Description of drawings
Fig. 1 is the overall structure figure of binding O port system of external exchanging service port of the present invention;
Fig. 2 is foreign exchange service port binding O jaws equipment concrete structure figure;
Fig. 3 be when the user when telephone plant makes a call, the flow chart of foreign exchange service port binding O mouth;
Fig. 4 is when from public switched telephone network (PSTN) device call telephone plant, the flow chart of foreign exchange service port binding O mouth.
Embodiment
Below we will be in conjunction with the accompanying drawings, optimum implementation of the present invention is described in detail.At first it is to be noted, the implication of the term of using among the present invention, words and claim can not only only limit to its literal and common implication and go to understand, also comprise the implication and the notion that into conform to technology of the present invention, this is because we are as the inventor, to suitably provide the definition of term, so that the most appropriate description is carried out in our invention.Therefore, the configuration that provides in this explanation and the accompanying drawing is first-selected embodiment of the present invention, rather than will enumerates all technical characteristics of the present invention.We will recognize to also have the various equivalent scheme or the modifications that can replace our scheme.
The overall structure of binding O port system of external exchanging service port of the present invention is as shown in Figure 1: comprising: telephone plant 11, IP network equipment 12, Public Switched Telephony Network equipment 13 and foreign exchange service port binding O jaws equipment 14.FXS port binding O mouth is meant the FXS port and the existing relation one to one of single O cause for gossip of VOIP voice gateways.The FXS port directly is connected with telephone plant 11, can realize the speech business function in IP network equipment 12.The O mouth links to each other with the traditional PSTN network equipment 13, as PBX, local side telephone exchange etc.
Described foreign exchange service port binding O jaws equipment 14 concrete structures comprise: O mouth state detection unit 141, first switch element 142 and second switch unit 143 as shown in Figure 2.Described O mouth state detection unit 141 is used to detect the state on the O mouth circuit; Described first switch element 142 is connected described telephone plant 11 when power down with the O mouth, normal talking when guaranteeing power down.Second switch unit 143, link to each other with described O mouth state detection unit 141 with described telephone plant 11, be used for passing through the foreign exchange service mouth when the telephone plant of the pairing foreign exchange service port of this foreign exchange service port binding O mouth, when in IP network equipment, realizing talk business, stop the external business mouth to be exhaled into.State on the O mouth circuit comprises: hook state, off hook state, ringing condition or polarity upset state.The control signal of described first switch element 142 and second switch unit 143 is determined according to the state indication of described O mouth.Described first switch element 142 and second switch unit 143 are electronic switch unit, comprising: relay and transistor switching circuit.
The major part of FXS binding O mouth device is an O mouth state detection circuit, and this circuit can detect three kinds of states on the O mouth line: on-hook, off-hook, ring, and the polarity upset that can carry out behind the off-hook detects.The input signal of circuit is the TIP and the RING signal of O mouth circuit, is output as RL and FL signal, and RL and FL have indicated the state of O mouth.
The FXO line status
| RL? | FL? | The FXO line status |
| 0? | 0? | Ring |
| 0? | 1? | Two states behind the off-hook (polarity upset) |
| 1? | 0? | ? |
| 1? | 1? | On-hook |
The another one of FXS binding O mouth device partly is a relay 1, during the relay power down phone is connected with the O mouth, has guaranteed that power down also can normal talking, the control signal of relay is CONA, system reads the status signal RL and the FL of O mouth earlier, operates accordingly according to corresponding state then.
Relay 1 control
| CONA? | 0? | FXS is connected with FXO, and the FXO indicator light is bright |
| 1? | FXS and FXO disconnect, and the FXO indicator light goes out | ? |
Last part of FXS binding O mouth device is a relay 2, the function of this relay is, when the phone of the pairing FXS mouth of this FXS binding O port mouth just by the FXS mouth, when realizing talk business in IP network, the sound of being heard when guaranteeing this O mouth of External Call is busy tone.The control signal of relay is CONB, and system reads the status signal RL and the FL of O mouth earlier, operates accordingly according to corresponding state then.
Relay 2 controls
| CONB? | ?0? | Make FXO become channel status, the O mouth can not be exhaled into |
[0056]?
| ? | 1? | Make FXO become open-circuit condition, the O mouth can be exhaled into |
The basic implementation method of foreign exchange service binding O port mouth of the present invention comprises:
The state indication of A, detection telephone plant;
B, being connected or disconnection according to described state indication control telephone plant and foreign exchange service port and O mouth.
Describe below in conjunction with the implementation method of specific embodiment foreign exchange service binding O port mouth of the present invention.When the user when telephone plant makes a call, as shown in Figure 3:
Step s101 after system's energising, is provided with telephone plant and is connected with the foreign exchange service port, disconnects with the binding O mouth.
Step s102, system detects the user and whether presses predefined number, if change step s103; Otherwise, change step s106;
Step s103, system switches to the O mouth of binding by control relay, and this moment, user's telephone plant was connected to the public telephone switching equipment that links to each other with the O mouth;
Step s104, whether the cycle detection user's communication finishes, and finishes then to change step s105;
Step s105, as detect the indication of user's hook state, system switches to telephone plant by control relay and is connected with the foreign exchange service port, disconnects with the binding O mouth;
Step s106, user dial number available in the IP network equipment;
Step s107, the O mouth of system binding is set to conducting state, and making when Public Switched Telephony Network equipment is dialed binding O mouth telephone number is busy tone;
Step s108, the user realizes conversation, fax and IP value-added service by IP network equipment.
When from public switched telephone network (PSTN) device call telephone plant, as shown in Figure 4:
Step s201 after system's energising, is provided with telephone plant and is connected with the foreign exchange service port, disconnects with the binding O mouth; The binding O mouth has bell signal, and system detects this incident;
Step s202, system switches to the O mouth of binding by control relay, and this moment, user's telephone plant was connected to the public phone exchanges network equipment that links to each other with the O mouth, ringing telephone stations;
Step s203 detects whether off-hook of user;
Step s204, if user's off-hook enters talking state, system needs when on-hook of cycle detection user.
Step s205, as detect user's on-hook, system switches to telephone plant by control relay and is connected with the foreign exchange service port, disconnects with the binding O mouth;
Step s206, if the user does not have off-hook, systemic circulation detects whether the binding O mouth still has ringing signal generating signal; If bell signal stops, system switches to telephone plant by control relay and is connected with the external business mouth, disconnects with the binding O mouth.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. the system of a foreign exchange service port binding O mouth, comprise: telephone plant, Public Switched Telephony Network equipment, IP network equipment, it is characterized in that, also comprise: foreign exchange service port binding O jaws equipment, described telephone plant, Public Switched Telephony Network equipment, IP network equipment all link to each other with described foreign exchange service port binding O jaws equipment;
Wherein, described O mouth is not real FXO mouth, but part has realized the function of fxo port;
Described foreign exchange service port binding O mouth is meant the FXS port and the existing relation one to one of single O cause for gossip of VOIP voice gateways inside;
Described foreign exchange service port binding O jaws equipment comprises: O mouth state detection unit, first switch element;
Described O mouth state detection unit is used to detect the state on the O mouth circuit, and according to the connection or the disconnection of described first switch element of this State Control;
Described first switch element links to each other with described O mouth state detection unit, and when power down described telephone plant is connected with the O mouth, normal talking when guaranteeing power down.
2. the system of foreign exchange service port binding O mouth according to claim 1, it is characterized in that, also comprise: the second switch unit, link to each other with described O mouth state detection unit with described telephone plant, be used for passing through the foreign exchange service mouth when IP network equipment is realized talk business, stop the O mouth to be exhaled into when the telephone plant of the pairing foreign exchange service port of this foreign exchange service port binding O mouth.
3. the system of foreign exchange service port binding O mouth according to claim 1 is characterized in that the O mouth line status that O mouth state detection unit can detect comprises: hook state, off hook state, ringing condition or polarity upset state.
4. as the system of foreign exchange service port binding O mouth as described in the claim 2, it is characterized in that the control signal of described first switch element and second switch unit is determined according to the state indication of described O mouth.
5. the system of foreign exchange service port binding O mouth according to claim 1 is characterized in that described Public Switched Telephony Network equipment comprises: PBX or local side telephone exchange.
6. as the system of foreign exchange service port binding O mouth as described in the claim 2, it is characterized in that described first switch element and second switch unit are electronic switch unit, comprising: relay and transistor switching circuit.
7. the existing method of foreign exchange service port binding O cause for gossip is characterized in that, comprising:
The state indication of A, detection telephone plant;
B, according to being connected or disconnection of described state indication control telephone plant and foreign exchange service port and O mouth, wherein, described foreign exchange service port binding O mouth is meant the FXS port and the existing relation one to one of single O cause for gossip of VOIP voice gateways inside.
8. as the existing method of foreign exchange service port binding O cause for gossip as described in the claim 7, it is characterized in that, when the user when telephone plant makes a call, also comprise before the steps A:
A11, system detect the user and whether press predefined number;
A12, system switch to the O mouth of binding by control relay, and this moment, user's telephone plant was connected to the public phone exchanges network equipment that links to each other with the O mouth;
Whether A13, cycle detection user's communication finish.
9. as the existing method of foreign exchange service port binding O cause for gossip as described in the claim 7, it is characterized in that, when the user when telephone plant makes a call, step B further comprises:
B11, as detecting user's hook state indication, system switches to telephone plant by control relay and is connected with the foreign exchange service port, disconnects with the binding O mouth;
B12, user dial number available in the IP network equipment;
The O mouth of B13, system binding is set to conducting state, and making when Public Switched Telephony Network equipment is dialed binding O mouth telephone number is busy tone;
B14, user realize voice, fax and IP value-added service by IP network equipment.
10. as the existing method of foreign exchange service port binding O cause for gossip as described in the claim 7, it is characterized in that when from public switched telephone network (PSTN) device call telephone plant, steps A further comprises:
A21, system switch to the O mouth of binding by control relay, and this moment, user's phone was connected to the public telephone switch that links to each other with the O mouth, ringing telephone stations;
A22, detect whether off-hook of user;
If A23 user's off-hook enters talking state, system needs when on-hook of cycle detection user.
11., it is characterized in that when from public switched telephone network (PSTN) device call telephone plant, step B further comprises as the existing method of foreign exchange service port binding O cause for gossip as described in the claim 7:
B21, as detecting user's on-hook, system switches to telephone plant by control relay and is connected with the foreign exchange service port, disconnects with the binding O mouth;
If B22 user does not have off-hook, systemic circulation detects whether the binding O mouth still has ringing signal generating signal; If bell signal stops, system switches to telephone plant by control relay and is connected with the external business mouth, disconnects with the binding O mouth.
12. as the existing method of foreign exchange service port binding O cause for gossip as described in the claim 10, it is characterized in that, also comprise before the steps A 21: after system's energising, telephone plant is set is connected, disconnect with the binding O mouth with the foreign exchange service port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2005100683786A CN1859456B (en) | 2005-05-08 | 2005-05-08 | Binding O port system of external exchanging service port and its realizing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100683786A CN1859456B (en) | 2005-05-08 | 2005-05-08 | Binding O port system of external exchanging service port and its realizing method |
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| Publication Number | Publication Date |
|---|---|
| CN1859456A CN1859456A (en) | 2006-11-08 |
| CN1859456B true CN1859456B (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100683786A Expired - Fee Related CN1859456B (en) | 2005-05-08 | 2005-05-08 | Binding O port system of external exchanging service port and its realizing method |
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| CN (1) | CN1859456B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159719B (en) * | 2007-09-21 | 2012-11-07 | 北京大唐高鸿数据网络技术有限公司 | VoIP analogy gateway and inside switch method of implementing conversation under fault condition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390021A (en) * | 2001-05-26 | 2003-01-08 | 三星电子株式会社 | Net gate based on internet agreement transmission language and its control method |
| CN1472940A (en) * | 2002-08-01 | 2004-02-04 | 昱源科技股份有限公司 | Exchange board network connector |
-
2005
- 2005-05-08 CN CN2005100683786A patent/CN1859456B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390021A (en) * | 2001-05-26 | 2003-01-08 | 三星电子株式会社 | Net gate based on internet agreement transmission language and its control method |
| CN1472940A (en) * | 2002-08-01 | 2004-02-04 | 昱源科技股份有限公司 | Exchange board network connector |
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| CN1859456A (en) | 2006-11-08 |
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