CN1065368A - Extension telephone automatic call dialed from different switchboard - Google Patents
Extension telephone automatic call dialed from different switchboard Download PDFInfo
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- CN1065368A CN1065368A CN 91101899 CN91101899A CN1065368A CN 1065368 A CN1065368 A CN 1065368A CN 91101899 CN91101899 CN 91101899 CN 91101899 A CN91101899 A CN 91101899A CN 1065368 A CN1065368 A CN 1065368A
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Abstract
The present invention relates to a kind of direct dialing in and go into interior lines extension set automatic switch, it by chip microprocessor, output control logic circuit, state input scan testing circuit, prompting speech generation circuit, audio frequency and pulse dialing receiving circuit, audio frequency and pulse signaling circuit, audio amplifier circuit, audio frequency two/wire/four-wire converting circuit, loop detection circuit, loop control circuit, bell flowing detecting circuit, switch combination circuit, power supply and indicating circuit be set form.The present invention can allow the method for outside line user by two-stage dialing, realizes the function of direct dialing in to the interior lines extension set, and having solved well must be through being provided with the problem of full-time operator's conversion when squeezing into interior lines by outside line.
Description
The present invention relates to a kind of transducer, particularly a kind of extension telephone automatic call dialed from different switchboard.
On the automatic telephone exchange network of post and telecommunications, the dial exchange that uses can be divided into two kinds of primary categories at present: a kind of local exchange network and long-distance switching network of being made up of big switch, this local exchange that cries; Another kind is to be applicable to that enterprises and institutions' service communication contact is main, and insert local exchange network by trunk line and carry out the Private Branch Exchange PBX that PERCOM peripheral communication is got in touch, this switch (is commonly called as: automatic little exchange) and can adopt the switch of calling out mutually of dialling the number just to be called " automatic telephone subscriber exchange " between the completely restricted extension subscriber exchange.
Automatic little exchange enters local network dual mode: a kind of is to include extension set in the city numbering of talking about reunification, and wherein goes on into the local telephone network selector stage, can receive the extension of being transmitted by local exchange and carry out incoming call and continue.Need only when adopting this network access mode to breathe out and listen once dialing sound, dial number one time, can tell the outside line user, be D0D1 mode, and the outside line user also only dials one time number during incoming call, and local exchange is received former item sign indicating numbers and gone, and afterwards several then are transmitted to automatic little exchange, automatic little exchange gets final product the required extension set of incoming call after receiving several items in back, and this incoming call mode is the DID mode.Cry full-automatic the networking for this D0D1+DID mode networks, advantage is that outside line can be directly called any interior lines extension set, and shortcoming is the number resource that will take and waste local telephone network.Adopt less at present.
Another kind is that automatic little exchange is received by trunk line on the subscribers feeder of local exchange, promptly replaces a common automatic telephone.During interior lines call extension outside line user, dial outer wire size earlier, busy trunk, after hearing the secondary dial tone that local exchange sends, dial secondary number (being outside line user's Local Number) again, be transmitted to local exchange through trunk line, realize fully automatic secondary dialing exhalation mode, be D0D2 mode.And during the interior lines extension set of the automatic little exchange of outside line customer call, then can only dial a number (automatic little general number), the relaying of going into that local exchange is called out automatic little exchange also is ringing-signal feeding (is similar to and calls out general automatic telephone), automatic little exchange receives behind the bell signal that will reply extension set to console or trunk line passes on bell signal, by the manual answering, after the conversation, manual operation is arranged again, calling is transferred on the required interior lines extension set, and this mode is human relay working.Network in D0D2+ human relay working mode and to cry semi-automatic networking.Advantage be easy realization, cost low, do not account for the Local Number resource; Shortcoming is that incoming call needs human relay working.Automatic little exchange networks, this mode of main at present employing.
The objective of the invention is to avoid above-mentioned the deficiencies in the prior art part and a kind of method of outside line user by two-stage dialing that can allow that have is provided, realize the extension telephone automatic call dialed from different switchboard of direct dialing in to the interior lines extension function.
Purpose of the present invention can reach by following measure: the present invention by chip microprocessor, output control logic circuit, state input scan testing circuit, prompting speech generation circuit, voice-frequency dialing receiving circuit, pulse dialing receiving circuit, audio sending circuit, pulse signaling circuit, audio amplifier circuit, audio frequency two/wire/four-wire converting circuit, loop detection circuit, loop control circuit, bell flowing detecting circuit, switch combination circuit, power supply and indicating circuit be set form.Chip microprocessor joins by state input scan testing circuit and bell flowing detecting circuit, and deliver to prompting speech generation circuit and audio sending circuit by the output control logic circuit, pulse signaling circuit, loop control circuit is delivered in the output of audio sending circuit or pulse signaling circuit, the output of prompting speech generation circuit is delivered to loop control circuit through audio frequency two/wire/four-wire converting circuit, the output one tunnel of loop control circuit is delivered to state input scan testing circuit through the loop detection circuit, and another road is through audio frequency two/wire/four-wire converting circuit, audio amplifier circuit, voice-frequency dialing receiving circuit and pulse dialing receiving circuit, state input scan testing circuit is delivered to chip microprocessor.Loop control circuit also joins by the subscribers feeder port on a, b line and the subscriber exchange, delivers to bell flowing detecting circuit from the bell signal that the subscribers feeder port is sent here through a, b line.
The present invention has following advantage compared to existing technology:
1. adopt on the semi-automatic network access mode at automatic little exchange, the present invention can make the outside line user directly add and dial the interior lines extension, and finishes the work of artificial conversion automatically.Be that the two-stage dialing mode is also adopted in incoming call,, realize function from direct dialing in to the interior lines extension set to reach the requirement that External Call interior lines extension set also can automatic connection, must be when squeezing into interior lines thereby solved through the problem of full-time operator's switching is set by outside line.
2. circuit is reasonable, designs ingeniously, is widely used in need adopting the occasion of automatic little exchange.
Fig. 1 is a functional-block diagram of the present invention;
Fig. 2 is the winding diagram of the present invention and local exchange, automatic little exchange and interior lines extension set.
The present invention is described in further detail below in conjunction with accompanying drawing (embodiment):
With reference to Fig. 1, the present invention by chip microprocessor 1, output control logic circuit 2, state input scan testing circuit 3, prompting speech generation circuit 4, voice-frequency dialing receiving circuit 5, pulse dialing receiving circuit 6, audio sending circuit 7, pulse signaling circuit 8, audio amplifier circuit 9, audio frequency two/wire/four-wire converting circuit 10, loop detection circuit 11, loop control circuit 12, bell flowing detecting circuit 13, switch combination circuit 14, power supply and indicating circuit 15 be set form.
With reference to Fig. 2, when the outside line user puts through automatic little exchange 17 and goes into relaying by the subscribers feeder of local exchange 16 after, automatic little exchange will be replied extension set port (being the subscribers feeder port) ringing-signal feeding to this appointment of going into relaying, and this adapter 18 is connected on this extension set port, when adapter has detected ringing-current, just automatic-answering back device (being similar to the machine of manually carrying), send the notice voice of " please then dialling extension ", subscribers feeder port via automatic little exchange 17, trunk ports is sent the outside line user back to, wait for that then the outside line user adds group extension, if in official hour, receive add dial extension after, adapter will receive that by the subscribers feeder port number is transmitted to automatic little exchange 17 with it, be transferred to internal user extension set 20(again and be similar to manual dial's switching).But if in official hour, can not receive or receive when thinking incorrect extension, then change automatically and go on the certain specific extension set, can be not then restore yet.
See Fig. 1 and Fig. 2, control core of the present invention is a chip microprocessor 1, its inside solidification Control Software.It is a special-purpose control program of finishing and be solidificated in inner EPROM in advance by carrying out, realizes following each partly course of action control of circuit.The output of its control signal is controlled by output control logic circuit 2 pairs of promptings speech generation circuit 4 and pulse signaling circuit 8, audio sending circuit 7 etc., and the state and the data of outside each functional circuit are imported (as the state of voice-frequency dialing receiving circuit 5 and pulse dialing receiving circuit 6, bell flowing detecting circuit 13, loop detection circuit 11 and the set on off state of switch combination circuit 14 etc. is set), all to monitor and read in through state input scan testing circuit 3.
During real work, add power supply, enter the idle waiting state after adapter resets.Chip microprocessor 1 receives the bell signal of being sent here by automatic little exchange 17 by the state of state input scan testing circuit 3 pilot bell current detection circuits 13.After the outside line user puts through these automatic little exchange 17 incoming trunk lines, automatic little exchange 17 just corresponding trunk line reply extension set port (this adapter connects thereon) ringing-signal feeding; After this moment, this adapter 18 was received bell signal, deliver to chip microprocessor 1 via bell flowing detecting circuit 13 and status scan input detecting circuit 3, control output control logic circuit 2 through pulse signaling circuit 8(or audio sending circuit 7 by Control Software) loop control circuit 12 is moved, send the closed signal that machine is carried in automatic-answering back device, notify automatic little exchange 17 and local exchange 16 through a, b two lines, with the talking path connection of outside line user to port that this adapter connects.Adapter is through after the certain time-delay, Control Software is sent the speech information of " please then dialling extension " through output control logic circuit 2 control prompting speech generation circuit 4, send automatic little exchange 17 and local exchange 16 back to via audio frequency two/wire/four-wire converting circuit 10, loop control circuit 12, notice outside line calling subscriber adds group extension.After the outside line user hears out the prompting speech, can use used telephone set to add immediately and dial extension.Pulse of transfering to or audio frequency (by Pulse Dialing in the subsets or audio sending circuit decision) dialing signal, talking path through switched telephone network is sent on the port of this adapter, and after loop control circuit 12 is delivered to 10 separation of audio frequency two/wire/four-wire converting circuit, give audio amplifier circuit 9, the dialing signal of far-end is amplified to the level of suitable reception, and gives voice-frequency dialing receiving circuit 5 respectively with it and pulse dialing receiving circuit 6 carries out the identification and the reception of dialed number.
Before beginning to collect the digits, the Control Software of chip microprocessor 1 will be set certain time limit earlier, then by the state of state input scan testing circuit 3 monitor audios dialing receiving circuit 5 and pulse dialing receiving circuit 6, see whether receive by the outside line user and add the extension of dialling.Receive that in the time limit correct extension then stops the wait that collects the digits automatically, and turn to the handling procedure of sending out extension.If time is limited to and does not receive or receive and think incorrect extension, then, the working method that switch combination circuit 14 sets changes the processing of specifying extension set or recovery automatically by being set.
After receiving correct number, the Control Software in the chip microprocessor 1 is transmitted extension by the subscribers feeder port in the automatic little exchange 17 to automatic little exchange by output control logic circuit 2 control audio signaling circuits 7 or pulse signaling circuit 8.By the action of pulse signaling circuit 8 control loop control circuits 12, produce and open/the on/off DC pulse numerical signal of closed loop when transmitting with pulse mode.Then produce the audio number coded signal of standards when transmitting, deliver to audio frequency two/wire/four-wire converting circuit 10 after driving, be transmitted to automatic little exchange 17 with the form of audio signal through amplifying by audio sending circuit 7 with the audio frequency mode.
The flexible change requirement that switch combination circuit 14 is used to adapt to the different user needs is set.Set as available switch combinations such as setting head, the forwarding type of number, number length, appointment extensions, chip microprocessor 1 can read in by state input scan testing circuit 3 automatically after resetting data are set.
The effect of loop detection circuit 11 is to detect automatic little exchange whether normal feed is arranged.
Claims (3)
1, a kind of extension telephone automatic call dialed from different switchboard is characterized in that: by chip microprocessor 1, output control logic circuit 2, state input scan testing circuit 3, prompting speech generation circuit 4, voice-frequency dialing receiving circuit 5, pulse dialing receiving circuit 6, audio sending circuit 7, pulse signaling circuit 8, audio amplifier circuit 9, audio frequency two/wire/four-wire converting circuit 10, loop detection circuit 11, loop control circuit 12, bell flowing detecting circuit 13, switch combination circuit 14, power supply and indicating circuit 15 are set form.
2, adapter according to claim 1, it is characterized in that: chip microprocessor 1 joins by state input scan testing circuit 3 and bell flowing detecting circuit 13, and deliver to prompting speech generation circuit 4 and audio sending circuit 7 by output control logic circuit 2, pulse signaling circuit 8, loop control circuit 12 is delivered in the output of audio sending circuit 7 or pulse signaling circuit 8, the output of prompting speech generation circuit 4 is delivered to loop control circuit 12 through audio frequency two/wire/four-wire converting circuit 10, the output one tunnel of loop control circuit 12 is delivered to state input scan testing circuit 3 through loop detection circuit 11, and another road is through audio frequency two/wire/four-wire converting circuit 10, audio amplifier circuit 9, voice-frequency dialing receiving circuit 5, with pulse dialing receiving circuit 6, state input scan testing circuit 3 is delivered to chip microprocessor 1.
3, adapter according to claim 1 is characterized in that: loop control circuit 12 also joins by the subscribers feeder port on a, b and the subscriber exchange 17, delivers to bell flowing detecting circuit 13 from the bell signal that the subscribers feeder port is sent here through a, b line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101899 CN1021614C (en) | 1991-03-23 | 1991-03-23 | Extension telephone automatic call dialed from different switchboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91101899 CN1021614C (en) | 1991-03-23 | 1991-03-23 | Extension telephone automatic call dialed from different switchboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1065368A true CN1065368A (en) | 1992-10-14 |
| CN1021614C CN1021614C (en) | 1993-07-14 |
Family
ID=4905327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91101899 Expired - Fee Related CN1021614C (en) | 1991-03-23 | 1991-03-23 | Extension telephone automatic call dialed from different switchboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1021614C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111163235A (en) * | 2020-02-06 | 2020-05-15 | 深圳震有科技股份有限公司 | Method and device for distinguishing and processing external line telephone incoming call through internal telephone |
-
1991
- 1991-03-23 CN CN 91101899 patent/CN1021614C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111163235A (en) * | 2020-02-06 | 2020-05-15 | 深圳震有科技股份有限公司 | Method and device for distinguishing and processing external line telephone incoming call through internal telephone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1021614C (en) | 1993-07-14 |
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