CN2378887Y

CN2378887Y - Arrangement for transferring received calls

Info

Publication number: CN2378887Y
Application number: CN 98218808
Authority: CN
Inventors: 苏建勋
Original assignee: HEXUNJIE ELECTRONIC TECHNIQUE CO Ltd SHENZHEN
Current assignee: HEXUNJIE ELECTRONIC TECHNIQUE CO Ltd SHENZHEN
Priority date: 1998-08-24
Filing date: 1998-08-24
Publication date: 2000-05-17
Anticipated expiration: 2008-08-24

Abstract

The utility model provides a calling transfer device which is used widely and can realize incoming call automatically under the unmanned situation. The utility model comprises a programmable microprocessor 15, a re-dial circuit 13, a FLASH circuit 14, a keyboard 11, a hand free control circuit 9, a dial-up integrated circuit 10, a dual tone multiple frequency amplifier 7, a switch control circuit 5, an electronic switch 6, a switch circuit 4 for installing numbers, a ringing test circuit 2, an external condition test circuit 1, a changeover switch 16, power supply, a reset circuit 8, etc.

Description

Call transferring device

The utility model relates to field of telephone communication, relates more specifically to incoming call is realized the device of calling transfer.

In the prior art, the calling transfer to incoming call has two kinds of implementations.A kind of for hooking shifts, the incoming call forwarding function that promptly utilizes switch to provide by operating the R key (being called the FLASH key again) on the telephone set or clapping hook switch, sends a pulse signal to switch, and command switch receives another telephone number; After receiving the special service sound of switch loopback, by people's manual manipulation, transfer to the required number of transferring to again, on-hook then, thus realization is to the calling transfer of incoming call.The limitation that this hooking shifts is, fully by manual operation, the people not the time just cannot realize; And during actual the use, the people just need not carry out calling transfer often.In addition, the interruption duration of the R key on the telephone set determines, and different switch to duration require differently, therefore, when the duration of the interruption duration of R key and switch request is inconsistent, just can't realize the function of calling transfer.Another kind is the calling transfer service that the post office of certain areas provides, and need carry out the operation of a series of regulations on telephone set, and the notice switch is set up or cancelled the calling transfer service.But this service need be installed special software and hardware on office exchange, if the post office under the telephone set does not provide this service, just can't use.In addition, setting up at every turn or cancelling transfer all needs to carry out earlier the keyboard operation of a series of complexity on telephone set, and the user uses very inconvenient.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and provides a kind of energy widely used, realizes the device of the calling transfer of incoming call under unmanned situation automatically.

For achieving the above object, the utility model has adopted following technical scheme: a kind of call transferring device comprises programmable microprocessor, redial circuit, FLASH circuit, keyboard, hands-free control circuit, dialing integrated circuit, dual-tone multifrequency amplifier, ON-OFF control circuit, electronic switch, number is provided with switching circuit, ring detecting circuit, external condition testing circuit, diverter switch, power supply and reset circuit.Wherein, microprocessor respectively with redial circuit, FLASH circuit, hands-free control circuit are provided with switching circuit with number and link to each other; Redialing circuit also links to each other with keyboard respectively with the FLASH circuit; Hands-free control circuit also links to each other with ring detecting circuit.The HFO output of dialing integrated circuit and/the DP output links to each other with ON-OFF control circuit, dial integrated circuit also respectively with keyboard, hands-free control circuit links to each other with the dual-tone multifrequency amplifier.Subscribers feeder a is provided with diverter switch; The external condition testing circuit links to each other with the control end of diverter switch; Two incoming ends of ring detecting circuit link to each other with subscribers feeder b with first contact of diverter switch respectively; Electronic switch is arranged between first contact of the output of dual-tone multifrequency amplifier and diverter switch, and the control end of electronic switch links to each other with ON-OFF control circuit; The machine transplanting of rice seat and second contact of diverter switch and subscribers feeder b answer the call.

The utility model has the advantages that whether can detect automatically needs to carry out calling transfer, and automatic setting or cancellation call forwarding function, thereby under unmanned situation, realized calling transfer to incoming call.The utility model volume is small and exquisite, and is easy for installation, with low cost, is widely used in the hotel, company, and apartment, the residential area, hospital, factories and miness, office, sanatorium expects someone's call, voice mail, systems such as many coal bodies.

Below in conjunction with drawings and Examples the utility model call transferring device is described in further detail.

Fig. 1 is the profile schematic diagram of an embodiment of the utility model call transferring device;

Fig. 2 is the theory diagram of call transferring device shown in Figure 1;

Fig. 3 is the circuit diagram of call transferring device shown in Figure 1.

As shown in Figure 2 to Figure 3, in embodiment of the present utility model, call transferring device comprises programmable microprocessor 15, redial circuit 13, FLASH circuit 14, DIP switch 12, keyboard 11, dialing integrated circuit 10, dual-tone multifrequency amplifier 7, hands-free control circuit 9, number is provided with switching circuit 4, ON-OFF control circuit 5, electronic switch 6, power supply and reset circuit 8, ring detecting circuit 2, external condition testing circuit 1, diverter switch 16, or the like.

Programmable microprocessor 15 should be selected four or 8-bit microcontroller of low-power consumption wide-voltage range for use.Programmable microprocessor 15 respectively with redial circuit 13, FLASH circuit 14, hands-free control circuit 9 are provided with switching circuit 4 with number and link to each other.Redialing circuit 13 also links to each other with keyboard 11 respectively with FLASH circuit 14.In order to adapt to the requirement of different switches, between FLASH circuit 14 and keyboard 11, be provided with DIP switch 12; DIP switch 12 has 73mS, 100mS, and 300mS, four kinds of FLASH durations of 600mS are selected.DIP switch 12 can also be carried out the selection between dual-tone multifrequency and the pulse, to adapt to the pulse telephone that use some remote districts.Because number is provided with switching circuit 4 and links to each other with microprocessor 15, and keyboard 11 and dialing integrated circuit 10 direct interfaces, can preestablish forwarding number by keyboard 11.

Dialing integrated circuit 10 is selected the compatible model of dual-tone multifrequency/pulse for use, and has hand-free function.The HFO output of dialing integrated circuit 10 and/the DP output links to each other with ON-OFF control circuit 5, dial integrated circuit 10 also respectively with keyboard 11, hands-free control circuit 9 links to each other with dual-tone multifrequency amplifier 7.Electronic switch 6 is arranged between first contact 161 of the output of dual-tone multifrequency amplifier 7 and diverter switch 16, and the control end of electronic switch 6 links to each other with ON-OFF control circuit 5.In order to guarantee the stable of input voltage polarity, between first contact 161 of diverter switch 16 and electronic switch 6, also be provided with a polar protective circuit 3.

Be connected to a bridge rectifier 17 on subscribers feeder, bridge rectifier 17 has two outputs, an end ground connection, and the other end links to each other with dialing integrated circuit 10 by resistance R 6, and the resistance of resistance R 6 is 10M ohm.The switching number that stores in the dialing integrated circuit 10 is kept preservation by the weak current that transmits by resistance R 6.

Power supply and reset circuit 8 respectively with programmable microprocessor 15, hands-free control circuit 9 redials circuit 13, FLASH circuit 14, the dialing integrated circuit 10 link to each other with electronic switch 6.

External condition testing circuit 1 is the external environmental condition that normally uses phone or carry out calling transfer in order to detect differentiation.External condition testing circuit 1 links to each other with the control end of diverter switch 16, switches with the selection between control telephone set and the call transferring device.In the present embodiment, external condition testing circuit 1 is to be used for hotel guest room, and whether the external condition that is detected for opening the room power supply.When the dweller gets back to the room, open the room power supply, external condition testing circuit 1 detects this situation, with regard to control its switch 16 subscribers feeder is access to telephone set, and the dweller just can normally answer and make a call toward the room.When the dweller withdraws from a room, turn-off the room power supply, external condition testing circuit 1 detects this situation, with regard to control its switch 16 subscribers feeder is access to call transferring device.

Ring detecting circuit 2 has two incoming ends 201,202, and wherein, incoming end 201 links to each other with first contact 161 of diverter switch 16, and incoming end 202 links to each other with subscribers feeder b.Second contact 162 of diverter switch 16 and the subscribers feeder b machine transplanting of rice seat 102 of answering the call.

The utility model call transferring device can be made a self-contained unit shown in figure one, in use, subscribers feeder is connect subscribers feeder socket 101, the telephone set machine transplanting of rice seat 102 of answering the call.Also can be arranged in the telephone set, utilize existing element in the telephone set, form a circuit integral body with telephone set network.

Its operation principle and process are as follows:

Automatically selecting by external condition testing circuit 1 is normally to use phone or carry out calling transfer.When subscribers feeder was access to call transferring device, in case incoming call is arranged, ringing circuit 2 detected bell signal, made dialing integrated circuit 10 be in hands-free off hook state by hands-free control circuit 9 immediately; Dialing integrated circuit 10 by HFO signal output part output HFO signal, with energizing switch control circuit 5, makes electronic switch 6 closures simultaneously, and power supply and reset circuit 8 just obtain the feed on the telephone wire, and all circuit obtain the power supply supply and reset to start working.Then, microprocessor 15 sends the FLASH signal and produces the action of simulation hookings by FLASH circuit 14 control dialing integrated circuits 10, and the hooking duration is set by toggle switch 12, and concrete action is finished by/DP signal excitation ON-OFF control circuit 5.Then, microprocessor 15 sends the REDIAL signal again, transfers to the switching number that is stored in dialing integrated circuit 10 in advance by redialing circuit 13 control dialing integrated circuits 10; If touch-tone signal then passes to subscribers feeder by dual-tone multifrequency amplifier 7, if pulse signal then passes to subscribers feeder by/DP signal controlling electronic switch 6.FD finished dialing, microprocessor 15 produce the on-hook action by the hands-free control circuit 9 of HANDFREE signal operation, and electronic switch 6 disconnects, and the power supply supply is cut off, and circuit quits work, and call transferring device is waited for next time and being called out.

Claims

1. a call transferring device comprises dialing integrated circuit (10), dual-tone multifrequency amplifier (7), and ON-OFF control circuit (5), electronic switch (6), ring detecting circuit (2), keyboard (11), power supply and reset circuit (8) is characterized in that:

Also comprise programmable microprocessor (15), redial circuit (13), FLASH circuit (14), hands-free control circuit (9), number are provided with switching circuit (4), extraneous testing circuit (1) and diverter switch (16);

Wherein, programmable microprocessor (15) respectively with redial circuit (13), FLASH circuit (14), hands-free control circuit (9) are provided with switching circuit (4) with number and link to each other; Redialing circuit (13) also links to each other with keyboard (11) respectively with FLASH circuit (14); Hands-free control circuit (9) also links to each other with ring detecting circuit (2); The HFO output of dialing integrated circuit (10) and/the DP output links to each other with ON-OFF control circuit (5), dial integrated circuit (10) also respectively with keyboard (11), hands-free control circuit (9) links to each other with dual-tone multifrequency amplifier (7); Subscribers feeder a is provided with diverter switch (16); External condition testing circuit (1) links to each other with the control end of diverter switch (16); Two incoming ends (201,202) of ring detecting circuit (2) link to each other with subscribers feeder b with first contact (161) of diverter switch (16) respectively; Electronic switch (6) is arranged between first contact (161) of the output of dual-tone multifrequency amplifier (7) and diverter switch (16), and the control end of electronic switch (6) links to each other with ON-OFF control circuit (5); The machine transplanting of rice seat (102) and second contact (162) of diverter switch (16) and subscribers feeder b answer the call.

2. call transferring device according to claim 1 is characterized in that:

Described power supply and reset circuit (8) respectively with programmable microprocessor (15), hands-free control circuit (9) redials circuit (13), FLASH circuit (14), the dialing integrated circuit (10) link to each other with electronic switch (6).

3. call transferring device according to claim 1 and 2 is characterized in that:

Also comprised DIP switch (12), be connected between FLASH circuit (14) and the keyboard (11).

4. call transferring device according to claim 1 and 2 is characterized in that:

Be connected to a bridge rectifier (17) on subscribers feeder, bridge rectifier (17) has two outputs, and one of them output head grounding, another output link to each other with dialing integrated circuit (10) by resistance R 6.