CN1140098C - Automatic logging-on device for long distance calls - Google Patents

Automatic logging-on device for long distance calls Download PDF

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Publication number
CN1140098C
CN1140098C CNB021125236A CN02112523A CN1140098C CN 1140098 C CN1140098 C CN 1140098C CN B021125236 A CNB021125236 A CN B021125236A CN 02112523 A CN02112523 A CN 02112523A CN 1140098 C CN1140098 C CN 1140098C
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China
Prior art keywords
circuit
output
detecting circuit
hook
integrated circuit
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Expired - Fee Related
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CNB021125236A
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Chinese (zh)
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CN1358009A (en
Inventor
蒋玉俊
沈宁
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Southeast University
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Southeast University
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Priority to CNB021125236A priority Critical patent/CN1140098C/en
Publication of CN1358009A publication Critical patent/CN1358009A/en
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Publication of CN1140098C publication Critical patent/CN1140098C/en
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Abstract

The present invention relates to device of a long distance telephone to automatically access networks, particularly to an additional device of a telephone. Input ends of an alternating-current switch, a coming electric bell flow detecting device, a off-hook detecting circuit and an on-hook detecting circuit of the device are respectively connected with outer telephone lines. The output end of the coming electric bell flow detecting device is connected with the off-hook detecting circuit, and the output end of the off-hook detecting circuit is connected with a disconnected output circuit. The output end of the disconnected output circuit is connected with the alternating-current switch. The input end of a double-tone decoding circuit is connected with the input end of a telephone (TEL), and the output end of the double-tone decoding circuit is respectively connected with a non-zero detecting circuit and a zero detecting circuit. The output end of the zero detecting circuit is connected with an automatic dialer, and the output end of the automatic dialer is connected with a dialing-ending detecting circuit and the outer telephone lines. Output terminals of the non-zero detecting circuit, the dialing-ending detecting circuit and the on-hook detecting circuit are connected with a closed output circuit, and the output end of the closed output circuit is connected with the alternating-current switch.

Description

Long-distance IP phone automatic logging-on device
One, technical field:
The present invention is a kind of when being used to make a long-distance call, and goes up the device of IP network automatically, belongs to the technical field that the telephone set attachment device is made.
Two, background technology:
At present, IP phone more and more is subject to people's attention because cost of the phone call is low, sound is clear, broad covered area, use amount are big.When people beat domestic or during international long-distance telephone, often will expect conversing with IP phone, but, not only remember difficulty and use also inconvenient owing to have their IP phone number of many telecommunications companies (as China Telecom, CHINAUNICOM, Netcom, Jitong, Tie Tong or the like) all inconsistent at present.For example to dial one and get to Pekinese's toll telephone, just need dial the online number of 5 IP phone, again dial area code, dial the number at last, to dial 16 item sign indicating numbers altogether.This makes people feel inconvenience, particularly when not remembering the IP phone number of some telecommunications companies clearly concerning allegro office efficiency nowadays undoubtedly, just can not use IP phone, especially concerning the elderly,, use the probability of IP phone will reduce a lot than young man owing to above reason.
Three, summary of the invention:
(1) goal of the invention
Purpose of the present invention just provides the long-distance IP phone automatic logging-on device that a kind of any number beyond need not to dial the number just can directly be gone up IP network.
(2) technical scheme
This device closes by exchanging beginning, incoming call ringing-current detector, the off-hook detecting circuit, on-hook detection circuit, disconnect output circuit, closed output circuit, double-tone is decoding circuit frequently, the non-zero detecting circuit, zero detecting circuit, autodialer, dialing finishes detecting circuit and forms, alternating-current switch, incoming call ringing-current detector, the off-hook detecting circuit, the input of on-hook detection circuit meets outer telephone wire LINE respectively, the output termination off-hook detecting circuit of incoming call ringing-current detector, the output termination of the defeated detecting circuit of off-hook disconnects output circuit, disconnect the output termination alternating-current switch of output circuit, the double-tone input and the telephone set input TEL of decoding circuit frequently joins, the double-tone output of decoding circuit frequently connects non-zero detecting circuit and zero detecting circuit respectively, the output termination autodialer of zero detecting circuit, the output termination dialing of autodialer finishes detecting circuit and outer telephone wire LINE, the non-zero detecting circuit, dialing finishes detecting circuit, the closed output circuit of the output termination of on-hook detection circuit, the output termination alternating-current switch of closed output circuit; Dialer integrated circuit (IC) in the autodialer 20" DTME " termination transistor BG 5Base stage, the dialer integrated circuit (IC) 20" C 1～C 3, R 1～R 4" end meets analog switch IC respectively 21～IC 26Two ends; The integrated IC circuit of counter in the autodialer 17" Q 1, Q 3, Q 5, Q 7, Q 9, " hold respectively that correspondence meets analog switch IC 21～IC 26Control end, the integrated IC circuit of counter 17" CP " termination not circuit IC 15Output, integrated circuit (IC) 17" Q0 " end pass through capacitor C 20Meet not gate IC 18Input, integrated circuit (IC) 17" CR, EN " two ends be connected on resistance R respectively 45Two ends; Decoder IC in the double-tone frequency decoding circuit 9Answer the call the respectively two ends of machine input (TEL), " IN+, IN-" two ends, decoder IC 9" Q 1" terminating diode D 17Positive pole, " Q 2" terminating resistor R 35, R 37, " Q 3" terminating diode D 16The formal utmost point, " Q 4" terminating resistor R 34, R 38, " STD " terminating resistor R 33, R 39With diode D 19Negative pole.
(3) technique effect
The invention has the advantages that when incoming call, " automatic logging-on device for long distance calls " problem with regard to never having solved for a long time more than having solved, this online size as matchbox, be serially connected in the inlet wire of telephone set, need not dismantle the parts of any telephone set, as long as set in advance the number (setting in the time of can producing) of IP phone, like this, when making a long-distance call, do not need to dial again the online number of IP phone, as long as made a long-distance call in the past, elder generation's dial area code, dial the number, just can go up IP network automatically, it is also unaffected to make local telephone at ordinary times.With regard to the user, need not to remember the number of IP network, the online automatically of making a long-distance call, not only this saves trouble, and also saves money; Concerning telecommunication department, as long as the user has bought " automatic logging-on device for long distance calls " of this telecommunications company, in case make a long-distance call, the just inevitable IP network of the said firm of having gone up automatically, this is to the service efficiency of development and fixing large quantities of clients=raising telco equipment, and increasing economic efficiency is the easiest, a kind of efficient management method.
Four, description of drawings
Fig. 1 is a circuit structure block diagram of the present invention, interchange beginning pass 1, incoming call ringing-current detector 2, off-hook detecting circuit 3, on-hook detection circuit 4, disconnection output circuit 5, closed output circuit 6, double-tone frequency decoding circuit 7, non-zero detecting circuit 8, zero detecting circuit 9, autodialer 10 is wherein arranged, dial and finish detecting circuit 11
Fig. 2 is circuit theory diagrams of the present invention.
Five, embodiment
Alternating-current switch 1 is by diode D 9～D 12Resistance R 15, R 16Capacitor C 5, C 6, transistor BG 2, integrated circuit (IC) 8Deng form;
Incoming call ringing-current detector 2 is by diode D 5～D 8, DW 3, capacitor C 7, C 8, resistance R 19Integrated circuit (IC) 2, IC 7Deng form;
Off-hook detecting circuit 3 is by resistance R 6, R 7, R 9, R 10, diode D 15, DW 2, capacitor C 3Integrated circuit (IC) 2Form;
On-hook detection circuit 4 is by resistance R 6, R 7, R 8, capacitor C 2, diode DW 2, D 13, D 14Integrated circuit (IC) 1Form;
Disconnect output circuit 5 by diode D 15, capacitor C 4, resistance R 13, integrated circuit (IC) 3, IC 4Form;
Closed output circuit 6 is by diode D 13, D 14, D 25, D 26, resistance R 13, capacitor C 4, integrated circuit (IC) 3, IC 4Form;
Double-tone frequency decoding circuit 7 is by transistor BG 3, integrated circuit (IC) 9Form;
Non-zero detecting circuit 8 is by diode D 16～D 18, resistance R 37～R 39, integrated circuit (IC) 11, IC 12Form;
Zero detecting circuit 9 is by diode D 16～D 19, resistance R 37, R 38, integrated circuit (IC) 10, IC 12Form;
Autodialer 10 is by transistor BG 5, integrated circuit (IC) 13～IC 20Form;
Dialing finishes detecting circuit 11 by diode D 25, integrated circuit (IC) 18, IC 19Form.
Integrated circuit (IC) wherein 1～IC 6, IC 13～IC 16, IC 18～IC 19Be not gate " CD4069 "; IC 8, IC 7Be photoelectrical coupler " 521-1 "; IC 9Be decoder " HM9270D ";
IC 17Be counter " CD4017 "; IC 10～IC 12Be NAND gate " CD4011 ";
IC 21～IG 26Be analog switch " CD4066 "; IC 20Be dialer " HM91310 ".
Dialer integrated circuit (IC) in the autodialer 20" DTMF " termination transistor BG 5Base stage, integrated circuit (IC) 20" C 1～C 3, R 1～R 4" end meets analog switch IC respectively 21～IC 26Two ends.
The integrated IC circuit of counter in the autodialer 17" Q 1, Q 3, Q 5, Q 7, Q 9, " hold respectively that correspondence meets analog switch IC 21～IC 26Control end, the integrated IC circuit of counter 17" CP " termination not circuit IC 15Output, integrated circuit (IC) 17" Q0 " end pass through capacitor C 20Meet ungated integrated circuit IC 18Input, integrated circuit (IC) 17" CR, EN " two ends be connected on resistance R respectively 45Two ends.
Decoder IC in the double-tone frequency decoding circuit 9Answer the call the respectively two ends of machine input (TEL), " IN+, IN-" two ends, the decoder integrated circuit (IC) 9" Q 1" terminating diode D 17Positive pole, " Q 2" terminating resistor R 35, R 37, " Q 3" terminating diode D 16The formal utmost point, " Q 4" terminating resistor R 34, R 38, " STD " terminating resistor R 33, R 39With diode D 19Negative pole.
Its course of work is: ringing-current AC90V 25HZ ringing signal is through capacitor C 7, resistance R 19And diode D 5～D 8Rectification, capacitor C 8Filtering, diode DW 3After the voltage stabilizing, send integrated circuit (IC) 7Photoelectrical coupler, photoelectrical coupler output " 1 ", integrated circuit (IC) 2NAND gate output locking " 0 " alternating-current switch locked closed can normally receive calls, and receives the tinkling of pieces of jade that shakes.
When not sending a telegram here off-hook, (when being caller off-hook preparation dialing) integrated circuit (IC) 7Be output as " high resistant ".Outer telephone wire LINE line voltage die is because capacitor C 3Two terminal voltages its drop-out voltage signal that can not suddenly change makes integrated circuit (IC) 2Output is triggered by " 0 " change " 1 ", by integrated circuit (IC) 3, capacitor C 4, integrated circuit (IC) 4" flip and flop generator " upset of forming, integrated circuit (IC) 4Output " 1 ", the secondary conducting of photoelectrical coupler, transistor BG 2End, by diode D 9～D 12, transistor BG 2Deng the alternating-current switch off resistance R that forms 15, resistance R 16, capacitor C 5, capacitor C 6The T-shape filter of forming inserts the double audio code signal, and AC signal such as voice signal ringing signal can not outwards spread out of, or import into.But DC channel is held, and the phone function is normally carried out work such as dialing.Integrated circuit (IC) 3 outputs " 0 " simultaneously divide three the tunnel deliver to a respectively, through resistance R 24Deliver to transistor BG 3Make transistor BG 3Conducting, double-tone frequency decoder " capacitation " enter the operating conditions wait and dial the number; B, through diode D 27Send integrated circuit (IC) 20" wake " dialer of resting state up, prepare, c, through R to outward dialing 2Deliver to transistor BG 1Make transistor BG 1Conducting makes complete machine logical circuit " capacitation " enter operating conditions.
After the caller dialing, the double audio code signal is through capacitor C 10, C 11, resistance R 25～R 29Send double-tone integrated circuit (IC) frequently 9Decoder, its output Q 1～Q 4Export 8421 yards, expression " 0～9 " ten number respectively, when the first place be non-" 0 " of " 1～9 " when digital, promptly during 1010 (10) in addition any yards, integrated circuit (IC) 11Output " 0 ", integrated circuit (IC) 3The bistable upset of forming alternating-current switch closure (because all work fixing on about the 5ms of dialing back and finishes, so do not influence the outside transmission in the first place) complete machine that resets resets, and phone can normally continue outside number dialing telephone call.
When after the caller dialing when the first integrated circuit (IC) when being " 0 " 9When exporting 1010 (10), integrated circuit (IC) 12Output " 0 " is by integrated circuit (IC) 13, IC 14, C 16Deng flip and flop generator, the upset formed, integrated circuit (IC) 14Export out " 1 ", pass through capacitor C 19Trigger analog switching ic IC 21, finish in integrated circuit (IC) 20The first place dialing " 1 " of dialing, behind the 100ms, capacitor C 17Last charging voltage reaches integrated circuit (IC) 16Threshold voltage the time, by integrated circuit (IC) 15, IC 16, C 18, resistance R 43The 100ms oscillator of forming plays shake, to decade counter IC 17(CD4017) the transmission cycle is the clock pulse of 100ms, integrated circuit (IC) 17Q 1～Q 0Order output " 1 " is respectively with analog switching ic IC 22～IC 26Triggering and conducting is sent the double audio code signal of " 7,9,0,9,0 " successively; Integrated circuit (IC) 20The double-audio signal of double-tone output DTMF output frequently, through resistance R 48, transistor BG 5Amplify the back and deliver to outside line by diode D1～D4, after signaling finishes, Q 0Output " 1 ", this signal triggering integrated circuit (IC) 18 makes integrated circuit (IC) 18(NAND gate) output switching activity is " 0 ", and this signal divides four the road to deliver to: a, make integrated circuit (IC) 5～IC 6C 28Deng " bistable trigger " upset of forming, integrated circuit (IC) 5Output " 1 ", LED 2Luminous, show the IP sign indicating number is sent completely; B, through diode D 23Make integrated circuit (IC) 13, IC 14The oscillator of the forming failure of oscillation that resets; C, through integrated circuit (IC) 19Oppositely by diode D 22Make counter reset, d, through diode D 25Make electric integrated circuit (IC) 3, IC 4, C 4" bistable " upset of forming resets, the alternating-current switch closure, and complete machine enters " dormant state " (all the IP signaling times are about 600ms) and continue to finish dialing and conversation on phone.Behind the caller off-hook, not dialing is during on-hook, by integrated circuit (IC) 1, resistance R 5, resistance R 7, diode DW 2, capacitor C 2The on-hook output circuit of forming, the output on-hook signal makes integrated circuit (IC) 3, IC 4, capacitor C 4" bistable triggering " upset of forming resets, and the closed complete machine of alternating-current switch enters " dormancy " attitude.
According to the above,, just can realize the present invention according to electrical schematic diagram of the present invention.

Claims (4)

1, a kind of long-distance IP phone automatic logging-on device, comprise alternating-current switch (1), incoming call ringing-current detector (2), off-hook detecting circuit (3), on-hook detection circuit (4), disconnect output circuit (5), closed output circuit (6), double-tone is decoding circuit (7) frequently, it is characterized in that this device also comprises non-zero detecting circuit (8), zero detecting circuit (9), autodialer (10), dialing finishes detecting circuit (11), alternating-current switch (1), incoming call ringing-current detector (2), off-hook detecting circuit (3), the input of on-hook detection circuit (4) meets outer telephone wire LINE respectively, the output termination off-hook detecting circuit (3) of incoming call ringing-current detector (2), the output termination that off-hook is failed detecting circuit (3) disconnects output circuit (5), disconnect the output termination alternating-current switch (1) of output circuit (5), the double-tone input and the telephone set input TEL of decoding circuit (7) frequently joins, the double-tone output of decoding circuit (7) frequently connects non-zero detecting circuit (8) and zero detecting circuit (9) respectively, the output termination autodialer (10) of zero detecting circuit (9), the output termination dialing of autodialer (10) finishes detecting circuit (11) and outer telephone wire LINE, non-zero detecting circuit (8), dialing finishes detecting circuit (11), the closed output circuit (6) of the output termination of on-hook detection circuit (4), the output termination alternating-current switch (1) of closed output circuit (6).
2, long-distance IP phone automatic logging-on device according to claim 1 is characterized in that the dialer integrated circuit (IC) in the autodialer (10) 20" DTMF " termination transistor BG 5Base stage, the dialer integrated circuit (IC) 20" C 1～C 3, R 1～R 4" end meets analog switch IC respectively 21～IC 26Two ends.
3, long-distance IP phone automatic logging-on device according to claim 1 and 2 is characterized in that counter integrated circuit (IC) in the autodialer (10) 17" Q 1, Q 3, Q 5, Q 7, Q 9, " hold respectively that correspondence meets analog switch IC 21～IC 26Control end, the integrated IC circuit of counter 17" CP " termination not circuit IC 15Output, integrated circuit (IC) 17" Q0 " end pass through capacitor C 20Meet not gate IC 18Input, integrated circuit (IC) 17" CR, EN " two ends be connected on resistance R respectively 45Two ends.
4, long-distance IP phone automatic logging-on device according to claim 1 and 2 is characterized in that the double-tone middle decoder IC of decoding circuit (7) frequently 9Answer the call the respectively two ends of machine input TEL, " IN+, IN-" two ends, decoder IC 9" Q 1" terminating diode D 17Positive pole, " Q 2" terminating resistor R 35, R 37, " Q 3" terminating diode D 16Positive pole, " Q 4" terminating resistor R 34, R 38, " STD " terminating resistor R 33, R 39With diode D 19Negative pole.
CNB021125236A 2002-01-11 2002-01-11 Automatic logging-on device for long distance calls Expired - Fee Related CN1140098C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB021125236A CN1140098C (en) 2002-01-11 2002-01-11 Automatic logging-on device for long distance calls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB021125236A CN1140098C (en) 2002-01-11 2002-01-11 Automatic logging-on device for long distance calls

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Publication Number Publication Date
CN1358009A CN1358009A (en) 2002-07-10
CN1140098C true CN1140098C (en) 2004-02-25

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