JP2912503B2 - Simultaneous monitoring of talkie recording - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitor system in a talkie device attached to a telephone exchange or the like.
The present invention relates to a simultaneous talkie recording monitoring method in a talkie apparatus that supplies notification information such as a weather forecast and time to a user of a communication network.

[0002]

2. Description of the Related Art As is well known, for example, the NTT (Nippon Telegraph and Telephone Corporation) Talkie service provides a weather forecast Talkie (WET) that provides a weather forecast by calling 177.
Service, time signal talkie (TIT) service that announces the time by making a call to 117, and call stop talkie (STSA) to provide guidance for stopping a call when a call is made to a subscriber station whose call has been stopped. There were services. In these, predetermined guidance items are recorded as voice signals in a talker device in a station connected to a telephone line network, and are reproduced and made to be heard by a calling station, thereby providing a desired talkie service. Similarly, there is a talk service in which a talk apparatus is attached to a private branch exchange or the like to record notification information and provide desired guidance to an extension or an outside line.

Conventionally, a talkie apparatus in a talkie service has a recording / reproducing circuit for recording and reproducing notification information by a voice signal from an information source, and an interface for connecting the recording / reproducing circuit to a communication line. The recording and playback circuit
An input section for inputting notification information from an information source, a recording / reproducing section for recording and reproducing the input notification information, and a reproduction signal from the recording / reproducing section to a subscriber station calling via a communication network. A line output unit for supplying and a monitor output unit for monitoring the notification information were provided. In this device, the monitor output unit is connected to the output side of the line output unit, and is configured to monitor a reproduction signal output from the recording / reproducing unit to the interface via the line output unit. Also, when recording the notification information in the recording / playback unit,
A busy tone generator has been provided to output a busy tone (blocking signal) to a communication network via an interface. For this reason, at the time of recording, the busy tone output from the line output unit is supplied to the monitor output unit, and the operator listens to the busy tone to confirm that the recording operation is being performed.

[0004]

However, in the conventional monitor system of the talkie apparatus, in order to confirm the correctness of the recording information recorded by the recording / reproducing section, the recording information is reproduced by the recording / reproducing section after the recording is completed. Had to be monitored via a line output. Therefore, when monitoring for confirming the recorded information, the recorded information is transmitted to the telephone communication network. In this case, if there is an incoming call to the talkie apparatus, incorrect information is transmitted to the communication network. There was. Also, even if there is an error in the recorded information, not only cannot the error be confirmed during the recording, but also the normality of the written content cannot be confirmed unless the information is sent to the communication line as described above. There was a disadvantage.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and enables simultaneous recording of a talkie recording in a talkie apparatus capable of detecting an error in input information during recording without sending erroneous information to a line. The aim is to provide a scheme.

[0006]

According to the present invention, in order to solve the above-mentioned problems, predetermined guidance information is recorded as a voice signal, and the guidance information based on the voice signal is transmitted to a telephone exchange network. Mode setting means for setting at least a recording mode for recording guidance information and a reproduction mode for reproducing the recorded guidance information, respectively. Recording / reproducing means for storing an audio signal representing guidance information when the recording mode is set by the mode setting means, and reproducing and outputting the stored audio signal when the reproducing mode is set; Means to output a busy sound signal indicating a busy state to the telephone line when set to the recording mode, and to set the recording mode by the recording and reproducing means when set to the reproducing mode. An output signal selecting means for outputting the generated audio signal to the telephone line; and an audio signal to be input to the recording / reproducing means when the mode is set to the recording mode by the mode setting means. And a monitor output selecting means for outputting an audio signal output from the output signal selecting means to the monitor side.

In this case, an analog voice signal representing guidance information is externally supplied to the talker device.
An analog-to-digital signal converter for converting an input analog signal into a digital signal; and a serial-to-parallel converter for converting a serial output from the analog-to-digital converter into parallel and supplying it to recording / reproducing means. The selecting means selects and outputs the digital signal from the analog-to-digital signal converting means in the recording mode, and outputs the digital signal from the selecting means to the analog signal at the output of the monitor output selecting means. A digital-to-analog converter is connected and configured.

The output signal selecting means selects a digital signal read in parallel from the recording / reproducing means and a busy sound signal output in parallel, and outputs these digital signals in parallel. The output of the means is connected to parallel-to-serial conversion means for converting a parallel-output digital signal into a serial signal and outputting the signal. The monitor output selection means selects the output of the parallel-serial conversion means in the reproduction mode. Output.

Further, one input of the output signal selecting means includes:
Parallel / serial conversion means for converting a digital signal output in parallel from the recording / reproduction means to serial and outputting the serial signal is connected, and the monitor output selection means selects the serial signal from the parallel / serial conversion means in the reproduction mode. The output of the monitor output selecting means is preferably connected to a digital-to-analog converting means for converting a digital signal into an analog signal.

Further, the talker apparatus includes interface means for converting an output of the output signal selecting means into a transmission signal of a communication network, and the interface means is connected to a digital highway of the exchange and operates at a predetermined time slot of the highway. Preferably, an output signal from the output signal selection means is inserted.

[0011]

According to the present invention, when recording guidance information, the mode setting means sets the recording / reproduction means, the monitor output selection means and the signal selection means in the recording mode, and the recording / reproduction means transmits the guidance information. A voice signal to be represented is written. The monitor output selecting means selects an audio signal to be supplied to the recording / reproducing means and supplies it to the monitor output.
Thereby, the recording input information in the recording mode can be monitored simultaneously. The signal selection means selects a busy sound signal and outputs it to an interface connected to the communication line. During playback, the mode setting means is recording and playback means,
With the monitor output selecting means and the signal selecting means in the recording mode, the recorded audio signal is read from the recording / reproducing means. The reproduced audio signal is selected by the signal selection means and output to the communication line via the interface. The monitor output selection means selects the audio signal output from the signal selection means and supplies the selected audio signal to the monitor output.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 1 shows a first embodiment of a talkie apparatus to which a simultaneous talkie recording monitoring system according to the present invention is applied. The talker apparatus 10 in this embodiment is connected to a digital highway 100 of a digital exchange, and outputs recording information such as a weather forecast and time to a subscriber terminal calling the talker apparatus 10 by transmitting a special number or the like. .

Referring to FIG. 1, a talk apparatus 10 includes a recording / reproducing unit 11 and a highway interface (HWIF) 12 connected to an output of the recording / reproducing unit 11. The interface unit 12 is an interface circuit that is connected to the highway of the digital exchange and inserts recording information output from the recording / reproducing unit 11 into a predetermined time slot of the digital highway. The talker device 10 has a recording mode, a reproduction mode, and an operation mode. In the recording mode, information to be transmitted to a communication network is recorded, or the recorded content is updated. In the reproduction mode, the recorded information is reproduced and output to the communication network. In the operation mode, a busy tone is sent to the communication network to stop the talkie service,
Maintenance and inspection of the device are performed.

The recording / reproducing section 11 includes a voice input terminal 13 to which a voice signal recorded from a microphone or the like is supplied, a monitor terminal 23 for monitoring recorded voice information and reproduced voice information, and An output terminal 22 for outputting an audio signal and a mode input terminal 28 for supplying a mode signal for performing mode control are provided.

An audio input terminal 13 has an audio amplifier (RA) 14
, Analog-digital converter (AD) 15, serial-parallel signal converter (SP) 16, digital voice memory (VMEM)
17 and a memory control circuit (MEM CTL) 18 are connected in series. On the output side of the serial / parallel signal converter 16,
One input of a two-input one-output standby selector (SBY SEL) 19 is connected. A busy tone (BT) generating circuit 20 is connected to the other input of the selector 19, and a parallel-serial signal converter (PS) 21 is connected to the output side.
The output side of the parallel-serial signal converter 21 has an output terminal
The highway interface device 12 is connected via 22. On the other hand, a monitor signal amplifier (M
A) 24, digital-to-analog converter (DA) 25, 2 inputs 1
An output monitor selector (MSEL) 26 is connected in series. The output from the parallel-serial converter 21 is connected to one input of the monitor selector 26, and the output from the analog-digital converter 15 is connected to the other input of the monitor selector 26. The mode input terminal 28 is connected to a mode processor (MP) 27 for performing mode control. The output of the mode processor 27 is connected to respective control input terminals of the memory control unit 18, the standby selector 19, and the monitor selector 26.

The mode processor 27 receives a mode signal indicating a recording mode, a reproduction mode, or an operation mode input from a mode input terminal 28, and transmits a control signal corresponding to each mode to the memory controller 18 and the standby selector 19. And a control circuit that outputs the signals to the monitor selector 26 and controls these outputs.

The audio amplifier 14 amplifies recording input information based on an analog audio signal input from a microphone or an updated talkie information transmitting device (for example, a tape recorder) via the audio input terminal 13 to an appropriate recording level in a recording mode. Analog-to-digital converter 15
This is an analog amplifier that outputs to The analog-to-digital converter 15 is a converter that converts an audio signal received from the audio amplifier 14 into a digital signal and outputs the digital signal serially.
The serial-parallel signal converter 16 is a circuit that converts a serially input digital signal into parallel and outputs the signal to the digital audio memory 17.

The digital audio memory 17 has, for example, a RAM (Random Acceses) in which input data from the serial / parallel signal converter 16 is written in a recording state, and information recorded in a reproducing state is read out and output to a standby selector 19.
s Memory). The memory control unit 18 controls to write the recording input information to the digital audio memory 17 in the recording mode under the control of the mode processor (MP) 27, and controls to read the information recorded in the memory 17 in the reproduction mode. Circuit.

The standby selector 19 is a selection circuit that has two inputs and one output, and selects and outputs each input based on the control of the mode processor 27. In particular,
The busy sound signal from the busy sound generation circuit 20 is selected and output in the recording and operation modes, and the reproduction output from the digital audio memory 17 is selected and output in the reproduction mode. The parallel-serial signal converter 21 is a conversion circuit that converts recording information or a busy sound signal output in parallel from the standby selector 19 into a serial signal and supplies the serial signal to the output terminal 22. The highway interface device 12
This is a circuit for sequentially inserting an output signal from the output terminal 22 into a predetermined time slot of the digital highway.

The monitor selector 26 has two inputs and one output, and is a selection circuit for selecting and outputting each input signal under the control of the mode processor 27. Specifically, in the recording mode, an input signal for recording output from the analog-to-digital converter 15 is selected, and in the reproduction mode, a reproduction output signal from the output terminal 22 is selected, and the digital-to-analog converter 25 is selected. This is a converter that outputs to The digital-to-analog converter 25 is a circuit that converts a digital signal output from the monitor selector 26 into an analog signal and outputs the analog signal. The monitor signal amplifier 24 is a digital-to-analog converter 25
Is an analog amplifier that amplifies the output signal from the monitor to an appropriate level for the monitor and outputs it to the monitor terminal 23. Monitor terminal 23
By connecting an earphone or receiver to
Recording input information and playback output information are monitored.

Next, the operation will be described. When recording voice information, first, a recording mode signal is supplied to the mode processor 27 from the mode input terminal 28. As a result, the mode processor 27 sets the memory control unit 18 and the standby selector 19
And a control signal indicating the recording mode to the monitor selector 26. On the other hand, the recording input information supplied from the audio input terminal 13 is amplified by the audio amplifier 14, converted to digital by the analog-to-digital converter 15, converted to parallel by the serial-parallel signal converter 16, and converted to digital audio memory. Enter 17 At this time, the digital audio memory control unit 18 puts the memory 17 into the write mode and sequentially records the input audio data in the digital audio memory 17.

On the other hand, the monitor selector 26 selects recording input information output from the analog-to-digital converter 15 based on a control signal from the mode processor 27, and outputs this to the digital-to-analog converter 25. As a result, the recording input information is converted again into an analog signal, further amplified by the monitor amplifier 24, and output from the monitor terminal 23. As a result, simultaneous recording monitoring is performed. in this case,
If there is an error in the recording, the recording can be stopped and the error can be corrected as many times as possible by re-recording. On the other hand, the standby selector 19 selects the busy sound signal from the busy sound generation circuit 20 in the recording mode, and
Output to As a result, the busy sound signal is serial-converted, supplied to the highway interface device 12 via the line output terminal 22, and transmitted from the interface 12 to the digital highway. As a result, when a call is received from the communication network to the announcement machine 11 being recorded, a busy tone can be supplied to the calling subscriber terminal to prompt the caller to reconnect.

Next, when reproducing, the mode terminal
The reproduction mode signal is supplied to 28. As a result, the mode processor 27 sets the memory control unit 18 and the standby selector 19
And a control signal indicating the reproduction mode to the monitor selector 26. Upon receiving the reproduction mode signal, the memory control unit 18 controls to read out the recorded information from the digital audio memory 17. On the other hand, the monitor selector 26 that has received the reproduction mode signal switches from the state in which the busy sound signal is selected to the state in which the reproduction signal from the audio memory 17 is selected, and outputs the received reproduction signal to the parallel-serial converter 21. . As a result, a reproduction signal is serially output to the line output terminal 22, and the recording information is transmitted to the digital highway via the interface 12. Further, the monitor selector 26 receiving the reproduction mode signal sets the parallel / serial converter based on the selected state of the output from the analog / digital converter 15.
The state is switched to the state of monitoring the reproduction signal for selecting the output from 21, and this reproduction signal is output to the digital-to-analog converter 25. As a result, the reproduced audio signal is output to the recording monitor terminal 23 via the monitor amplifier 24, and the monitor at the time of reproduction is performed.

Next, in the operation mode, the mode processor 27 outputs a control signal to the standby selector 19,
Thereby, the standby selector 19 selects and outputs the busy sound 20. As a result, a busy sound signal is supplied to the interface 12 via the parallel-serial converter 21. Therefore, in the operation mode, a busy tone is transmitted from the highway interface device 12 to the digital highway, thereby notifying the caller that the service is temporarily stopped.

Next, a description will be given of a second embodiment of a talker device to which the simultaneous talkie recording monitoring system according to the present invention is applied with reference to FIG. In FIG. 2, the talker device 30 includes a recording / reproducing unit 31 and the highway interface device 12 connected to an output of the recording / reproducing unit 31. Note that FIG.
In FIG. 7, the same parts as those in the first embodiment are denoted by the same reference numerals. The difference between the recording / reproducing unit 31 in the second embodiment and the recording / reproducing unit 11 in FIG. 1 is that the order of the parallel-serial converter 21 on the line output side and the standby selector 19 to which the busy generation circuit 20 is connected is different. The output of the parallel-serial converter 21 connected to the audio memory 17 is connected to one input of the monitor selector 26.

That is, the serial / parallel signal converter 16
The audio memory 17 is connected to a parallel-to-serial signal converter 21 and outputs a reproduction signal to the parallel-to-serial signal converter 21 in parallel. The parallel-to-serial signal converter 21 converts the reproduction signal to serial and outputs a two-input one-output monitor selector 26 and a standby selector 19
Respectively. The other input of the standby selector 19 is connected to the busy sound generating circuit 20 as in the first embodiment, and the output side is connected to the output terminal 22. The input side of the mode processor 32 is connected to the mode input terminal 28, and the output side is connected to each control input side of the memory controller 18, the standby selector 19 and the monitor selector 26. In this embodiment, the mode processor 32
Receives a signal of a recording mode, a playback mode, a monitor mode or an operation mode from the mode input terminal 28, and outputs a control signal corresponding to each mode to the memory control unit 18, the standby selector 19 and the monitor selector 26,
The control corresponding to the mode is performed.

More specifically, in the recording mode, the mode processor 32 outputs a recording mode control signal to the memory controller 18, the standby selector 19 and the monitor selector 26. Recording input information input from the audio input terminal 13 is supplied to the digital audio memory 17 through the audio amplifier 14, the analog-to-digital converter 15, and the serial-parallel signal converter 16, respectively. As a result, the memory 17 accumulates the recording information based on the write control of the memory control unit 18. On the other hand, the monitor selector 26
Select and output the recording input information from. This selector
The recording input information output by 26 is a digital-to-analog converter
25, The signal is output to the monitor terminal 23 through the monitor signal amplifier 24. As a result, simultaneous recording monitoring is performed. If there is an error in the recording, the recording is stopped, and the error can be corrected as many times as possible by re-recording. On the other hand, standby selector
Reference numeral 19 selects and outputs the output of the busy sound generation circuit 20, and this busy signal is transmitted from the highway interface device 12 to the digital highway, and the state of the announcement machine 11 being recorded is transmitted from the communication network to the subscriber station that has called. Be informed.

In the reproduction mode, the mode processor 32
Outputs a control signal in the reproduction mode to the memory control unit 18, the standby selector 19, and the monitor selector 26, and the memory control unit 18 controls to read the recorded information from the digital audio memory 17. The monitor selector 26 selects and outputs the recording information output from the audio memory 17 through the parallel-to-serial signal converter 21, whereby the recording information is transmitted to the digital highway. The monitor selector 26 selects and outputs the recording information output from the parallel-to-serial signal converter 21. This recording information is output to the monitor terminal 23 via the digital converter 25 and the monitor amplifier 24, and Monitoring is performed.

In the operation mode, the mode processor 27
Outputs an operation mode control signal to the standby selector 19, whereby the standby selector 19 selects and outputs the output of the busy sound generation circuit 20, and as a result, the highway interface device 12 sends a busy sound to the highway. . In this state, other circuits can be turned off, and during this time, maintenance and inspection of the talker device 30 can be performed.

In the monitor mode, the mode processor
32 outputs a control signal in the reproduction mode to the memory controller 18 and the standby selector 19 and outputs a control signal in the monitor mode to the monitor selector 26. The memory control unit 18 reads out the recording information from the digital audio memory 17, and the standby selector 19 selects the output of the busy sound generation circuit 20, whereby a busy signal is sent to the digital highway.
The monitor selector 26 obtains the reproduced recording information from the output of the parallel-serial converter 21 and outputs it to the DA converter 25, whereby the recording / reproduction information is output to the monitor terminal 23.
As described above, in this embodiment, the reproduction signal can be monitored while the talker device 30 is in the busy state, and the simultaneous monitoring can be performed even during the recording as described above.

Next, in order to compare the above-described embodiment with a conventional talker, a conventional talker will be described with reference to FIG. The talker device 40 shown in FIG. 3 includes a recording / reproducing unit 41 and the highway interface device 12. The recording / reproducing unit 41 of the device in this conventional example has a configuration in which the monitor side does not have the monitor selector 26 which is one of the features of the respective embodiments, and can monitor only the output from the parallel-serial converter 21 only. I have. In this example, when the mode processor 42 receives the signals of the recording mode, the playback mode, and the operation mode from the mode input terminal 28, the mode processor 42 supplies a control signal corresponding to the mode to the memory control unit 18 and the standby selector 19, and Control. However, simultaneous recording monitoring by the monitor selector 26 cannot be performed.

More specifically, in the recording mode, the mode processor 41 includes the memory control unit 18 and the standby selector 19
To output the control signal of the recording mode. Recording input information input from the audio input terminal 13 is stored in the digital audio memory 17 under the write control of the memory control unit 18. A busy sound is transmitted from the standby selector 19 to the digital highway. At this time, the busy sound output of the parallel-serial converter 21 is output from the monitor terminal 23 via the digital-analog converter 25 and the amplifier 24. Further, in the operation mode, the mode processor 41 outputs a standby instruction signal to the standby selector 19, and the standby selector 19 receiving this signal selects and outputs the busy sound 20. As a result, the busy sound is transmitted from the highway interface device 12 to the digital highway.

In the reproduction mode, the mode processor 41
Outputs a playback mode control signal to the memory control unit 18 and the standby selector 19, and the memory control unit 18 reads recorded information from the digital audio memory 17 and
19 selects this information. The recording / reproducing information is sent to the digital highway through the parallel / serial signal converter 21 and the highway interface 21. The recording / playback information is stored in a digital / analog converter 25, monitor signal amplifier 24,
Through the monitor terminal 23 to monitor the recording and playback. In this conventional example, the monitor selector 26,
Since there is no independent monitoring function, erroneous information may be transmitted to a communication network. In each of the above-described embodiments, the monitor selector 26 is provided to monitor the write information, prevent errors, and prevent erroneous information from being sent to the communication network.

[0034]

As described above in detail, according to the present invention, the recording information can be corrected by monitoring the simultaneous recording in the recording mode and the recording / reproduction in the busy state in the monitor mode. Can do it. Therefore, erroneous recording information is not transmitted to the communication network, and the effect of improving the quality of the talkie service in the communication network is achieved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a talker apparatus to which a simultaneous talkie recording monitoring system according to the present invention is applied.

FIG. 2 is a block diagram showing a second embodiment of a talkie apparatus to which a simultaneous talkie recording monitoring method according to the present invention is applied.

FIG. 3 is a block diagram showing an example of a conventional apparatus for simultaneous monitoring of talkie recording.

[Explanation of symbols]

 10,30,40 Talking device 11,31,41 Recording / playback unit 12 Highway interface device 14 Audio amplifier 15 Analog / digital converter, 16 serial / parallel signal converter 17 Digital voice memory 18 Memory control unit 19 Standby selector 20 Busy sound 21 Parallel Serial signal converter 24 Monitor signal amplifier, 25 Digital-to-analog converter 26 Monitor selector 27, 32, 42 Mode processor

──────────────────────────────────────────────────続 き Continued on the front page (72) Kazuo Kurosawa, Inventor Kazuo Kurosawa 1-chome, 1-6-1 Uchisaiwai-cho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Hiroshi Kobayashi 5-3-1, Shiba, Minato-ku, Tokyo Japan (56) References JP-A-3-117258 (JP, A) JP-A-61-209498 (JP, A) JP-A-1-3161051 (JP, A) JP-A-60-123899 (JP) , A) JP-A-2-303264 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04M 3/42-3/58 H04M 11/00-11/10

Claims (5)

(57) [Claims] 1. A talk apparatus in which predetermined guidance information is recorded as a voice signal and the guidance information based on the voice signal is supplied to a calling station via a telephone exchange network. Recording mode when recording,
Set the playback mode when playing the recorded guidance information and perform control according to each mode setting
Playback and mode setting means for an audio signal representative of said guidance information when set in record mode by said mode setting means stores in a predetermined data format, the audio signal stored when it is set to the reproduction mode A recording / reproducing means for outputting a busy sound signal indicating a busy state when the recording mode is set by the mode setting means to a telephone line, and outputting the recording / reproducing means when the recording mode is set. a predetermined form of sound signals to be input to the recording and reproducing means when set in record mode and the output signal selection means for outputting an audio signal reproduced in the telephone line, by said mode setting means at the <br/> and a monitor output selection means for selecting either the audio signal output from said output signal selecting means when it is set to the reproduction mode for the monitor, the output signal selected hand It is, Parallel from the recording and playback means
Digital signal read in parallel or output in parallel
Select one of the busy sound signals
Digital signal in parallel, and the output signal
The digital signal output in parallel is serially output.
Parallel-to-serial conversion means for converting to an analog signal and outputting
And the monitor output selecting means is provided in a reproduction mode.
The serial signal from the parallel / serial conversion means.
A talk apparatus characterized by selecting and outputting a signal. 2. The apparatus according to claim 1, wherein
The apparatus is supplied with guidance information to be recorded from the outside in the form of an analog voice signal. The apparatus includes an analog-to- digital signal converting means for converting an input analog signal into a digital signal, and a serial output from the analog-to- digital signal converting means. the converted to parallel and a serial parallel signal conversion means for supplying to said recording and playback means, said monitor output selection means, said select a digital output from the analog-to-digital signal conversion means and outputting at recording mode , the output of the monitor output selection means, talkie device characterized by digital-to-analog conversion means for converting the digital output from the output <br/> selection means into an analog signal is connected. 3. The apparatus according to claim 2, wherein
One input end of the output signal selecting means is connected to a parallel-to-serial converting means for converting a digital signal output in parallel from the recording / reproducing means into a serial signal and outputting the serial signal. wherein selects the output of the parallel-serial conversion means to output when the mode, characterized in that the output of the monitor output selection means digital-to-analog conversion means for converting a digital signal into an analog signal is connected talkie apparatus. 4. The apparatus according to claim 1, wherein
The apparatus according to claim 1, wherein said apparatus includes interface means for converting an output of said output signal selecting means into a signal of a format handled in a connected communication network. 5. The talker according to claim 5, wherein
A talker apparatus, wherein the interface means is connected to a digital highway of an exchange and inserts an output signal from the output signal selection means into a predetermined time slot of the highway.