CN2296098Y - Automatic non-lift answerer for switchboard - Google Patents

Abstract

The utility model discloses an automatic answering back device for a switchboard at an attendant console, particularly an automatic hand-free answering back device for a switchboard. The utility model is composed of a voice circuit, a telephone transmitting and receiving amplification circuit, and a handset, wherein, the handset comprises a built-in handset and wearing type handset with an external connection, and external connected headset is composed of an earphone matched with a telephone transmitter. When the a telephonist answers the call of an external line user, the utility model can automatically send out the responded voice which is recorded in a responser in advance; meanwhile, and the telephonist can carry out a conversation with the outside line user in a hand-free way via the built-in handset or an external connected headset; so the labor strength of the telephonist is reduced, and the work efficiency of the telephonist is improved; because the utility model is provided with the external connected headset, the voice transmitting and receiving quality can be effectively ensured, and the good working environment of a switchboard telephonist's room can be maintained.

Description

The hands-free automatic answer back unit of subscriber exchange

The utility model relates to a kind of transponder that is used for the subscriber exchange console, is meant a kind of hands-free automatic answer back unit of subscriber exchange with external headset especially.

Existing subscriber exchange console when the operator replys the outside line customer call, must be replied by the operator.When telephone traffic is very big, correspondingly increase operator's labour intensity, and, so not only make operator's labour intensity bigger, and many people use the same handle formula electrophone very unhygienic because existing subscriber exchange console mostly adopts the handle type electrophone.

In view of above situation, the purpose of this utility model just be to provide a kind of can be when the operator replys External Call, (as: hello automatically to send the response language of recording in advance to the outside line user, XX unit), simultaneously, the operator can be by built-in electrophone or external headset and the hands-free dialogue of outside line user.

To achieve these goals, the utility model by sound circuit, send and talked about amplifying circuit and electrophone is formed, wherein send the input of words amplifying circuit to link to each other with transmitter with the playback end of sound circuit respectively, output is connected in the words of sending of switch console and holds; The input of being talked about amplifying circuit links to each other with the callee of switch console, and output is connected in receiver; Electrophone comprises built-in electrophone and external headset, and external headset is made of an earphone of being furnished with transmitter, and with the hands-free automatic answer back unit of this subscriber exchange between have holding wire to be connected.

Described recording circuit adopts ISD1400 series monolithic speech IC.

Described sending talked about amplifying circuit employing TBA820 power amplifier integrate circuit.

As from the foregoing, the hands-free automatic answer back unit of the utility model switch can be when the operator replys the outside line customer call, automatically send the response language that is recorded in advance on the transponder to the outside line user, the operator can be by built-in electrophone or external headset and the hands-free dialogue of outside line user simultaneously, realization telephone exchange standard courtesy are replied, alleviate operator's labour intensity, improve the beneficial effect of operator's operating efficiency.Especially, because external headset can overcome the high-frequency self-excitation that the electrophone back coupling causes effectively, thereby improve greatly and send receiving speech quality, external transmitter is connected respectively with transponder independently of one another with external receiver simultaneously, can select for use respectively as required in use, reach more flexible, more practical result of use.

Below in conjunction with accompanying drawing the utility model is described in detail.

Fig. 1 is a profile schematic diagram of the present utility model;

Fig. 2 is the electrical connection schematic diagram of external headset of the present utility model;

Fig. 3 is a sound circuit schematic diagram of the present utility model;

Fig. 4 is the words amplifying circuit schematic diagram that send of the present utility model;

Fig. 5 is the amplifying circuit schematic diagram of being talked about of the present utility model.

Symbolic significance is as follows among the figure:

10 loud speakers

11 earphone jacks

12 microphone jacks

13 external headsets

14 recording switch

15 consoles send is talked about interface

16 built-in transmitters

Referring to Fig. 4, A, B end joins with the words end that send of switch console, and K switch places position 1, and at this moment, the hands-free automatic answer back unit of subscriber exchange is in running order.When operator's pressing console listening key and outside line user connect, for direct current (about 10V), the power unit circuit of being made up of transformer B1 and voltage-stabiliser tube D9, electrochemical capacitor C1 is to the hands-free automatic answer back unit of the subscriber exchange direct current 5V that powers to A, B line for switch.

See also Fig. 3, at this moment, by the trigger circuit triggers speech IC U0 playback that T1, T2 form, at this, the model of speech IC U0 is an ISD1400 series monolithic speech IC.Playback end O is coupled to the input (see figure 4) of sending the words amplifying circuit through C18, send words amplifying circuit U1 to adopt the TBA820 power amplifier integrate circuit.Voice signal after amplifying is sent to the outside line user from A, B end by transformer B1 coupling.

Simultaneously, operator's voice signal is sent to the outside line user from A, B end through amplifying by transformer B1 coupling by the input that transmitter MIC1 can send into the words amplifying circuit equally.

See also Fig. 5, C, D end joins with the callee of switch console, and outside line user's voice signal is coupled into the input of being talked about amplifying circuit through transformer B2, is talked about amplifying circuit U2 and also adopts the TBA820 power amplifier integrate circuit.After amplifying, send by receiver loud speaker SP.

See also Fig. 3, when K switch placed position 2, the hands-free automatic answer back unit of subscriber exchange then was in recording state, and person for recording's sound is sent into by transmitter MIC1, through the C24 coupling, was connected in the recording end I of speech IC U0, typing speech IC U0.

See also Fig. 2, the earphone RV of external headset is connected with earphone jack 11, microphone jack 12 respectively with the hands-free automatic answer back unit of subscriber exchange with transmitter MIC2, make the hands-free automatic answer back unit of the utility model subscriber exchange not only have the voice automatic answer function, have the higher receiving speech quality that send simultaneously again.When the hands-free automatic answer back unit of this kind of multi-section is equipped with in switch traffic chamber, guarantee that the operator send to be talked about clearly, noiseless each other that it is good that the operational environment of switch traffic chamber keeps.

Claims (3)

1, the hands-free automatic answer back unit of a kind of subscriber exchange, by sound circuit, send and talked about amplifying circuit and electrophone is formed, wherein send the input of words amplifying circuit to link to each other with transmitter with the playback end of sound circuit respectively, output is connected in the words of sending of switch console and holds; The input of being talked about amplifying circuit links to each other with the callee of switch console, and output is connected in receiver; It is characterized in that: electrophone comprises built-in electrophone and external headset, and external headset is made of an earphone of being furnished with transmitter, and with the hands-free automatic answer back unit of this subscriber exchange between have holding wire to be connected.

2, the hands-free automatic answer back unit of subscriber exchange according to claim 1 is characterized in that: described recording circuit adopts ISD1400 series monolithic speech IC.

3, the hands-free automatic answer back unit of subscriber exchange according to claim 1 is characterized in that: described sending talked about amplifying circuit employing TBA820 power amplifier integrate circuit.

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