JP3097881B2 - Communication device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication apparatus, and more particularly to a telephone transfer function between a plurality of communication apparatuses connected to the same ISDN line.

[0002]

2. Description of the Related Art Conventionally, when a telephone being communicated with a communication device connected to an ISDN line is held and transferred to another communication device connected to the same line, interruption / resumption which is an additional service of the ISDN line is required. The transfer is performed using the function.
In the suspend / resume function, when a suspend signal is transmitted to the exchange during communication with a communication device connected to the ISDN line, the telephone in communication is suspended and all communication devices connected to the ISDN line are communicating. Has a function of transmitting an additional information signal for simultaneously notifying that the telephone has been put on hold.
When any of the communication devices connected to the N line transmits a restart signal to the exchange, there is a function of releasing the telephone held by the exchange and restarting communication with the communication device.

[0003]

However, existing techniques using the suspend / resume function have the following disadvantages. The additional information signal for simultaneously notifying that the telephone during communication has been put on hold does not include information for specifying the communication device to be transferred.
For this reason, when performing the transfer, the person who has interrupted notifies the transfer destination verbally, resumes the transfer at the transfer destination, and resumes the communication. In this case, there is a drawback that it is necessary to perform a verbal notification, and if the transfer destination is not a distance that can be verbally notified, the transfer cannot be performed. In addition, since it is necessary to give a verbal notification to the transfer destination, there is a disadvantage that automatic transfer cannot be performed between communication devices without manual intervention.

An object of the present invention is to provide a communication device which enables automatic transfer without manual intervention as described above.

[0005]

SUMMARY OF THE INVENTION A communication apparatus according to the present invention transmits an interruption notification signal transmitted from a line when a communicating communication apparatus connected to the same line transmits an interruption signal to the line. When the interruption notification signal detecting means detects the interruption notification signal,
The line control circuit is provided with a restart signal transmitting means for automatically transmitting a restart signal to the line.

Also provided is a ring tone generating means for notifying an incoming call when the interrupt notification signal is detected by the interrupt notification signal detecting means, and a restart control means for operating the restart signal transmitting means by off-hook operation to transmit the restart signal. It is provided in the telephone control circuit.

Further, the apparatus has a device number storing means for storing the device number of the communication device, and sets the device number stored in the device number storing means as the call identification number in the restart signal when transmitting the restart signal to the line. The telephone control circuit has call identification control means for transmitting.

Also, a restart confirmation signal detecting means for detecting a restart confirmation signal transmitted from the line, and an interruption signal transmission for transmitting a suspension signal to the line when the restart confirmation signal is detected by the restart confirmation signal detecting means. When the interruption notification signal transmitted from the line in response to the interruption signal is detected by the interruption notification signal detection means, the incoming call is notified by the ring tone generation means.

[0009]

In the present invention, when the interruption notification signal from the line is detected by the interruption notification signal detecting means, the restart signal is automatically transmitted from the restart signal transmitting means without human intervention.

Further, when the interruption notification signal is detected by the interruption notification signal detection means, the interruption is notified by the ring tone generation means, and when the hook is taken off-hook, a restart signal is automatically transmitted.

[0011] Further, when the restart signal is transmitted to the line, the device number stored in the device number storage means is set as the call identification number in the restart signal and transmitted to the line.

Further, when the resumption confirmation signal is detected by the resumption confirmation signal detecting means, an interruption signal is automatically transmitted to the line, and in response to the interruption signal, an interruption notification signal transmitted from the line is detected to generate a ring tone. Notify incoming call by means.

[0013]

FIG. 1 shows the configuration of a first basic example of the present invention.
Reference numeral 1 denotes a line control circuit having a layer 1 to layer 3 control function assumed under user / network interface conditions connectable to an ISDN line, and an interruption notification signal detecting means 1A for detecting an interruption notification signal generated from the line; And a restart signal sending means 1B for automatically sending a restart signal to the line when the interrupt notification signal detecting means 1A detects the interruption. 2 is a telephone control circuit for controlling the man-machine section of the telephone, 3 is an operation key switch volume of the telephone, 4 is a handset transmitter, 5 is a handset receiver, 6 is a speaker, 7 is an analog amplifier, An analog circuit having an analog filter, various tone sound sources (voice circuits), etc., 8 is an audio codec for encoding and decoding digital / analog signals of audio signals, 9 is a power supply circuit, D
SU is a digital service unit.

FIG. 2 is an operation flowchart showing the operation of the first basic example of the present invention. FIG. 3 shows a communication sequence with an ISDN line showing a first basic example of the present invention. Hereinafter, the operation of the first basic example will be described using this operation flowchart. Note that (S1) to (S6) in FIG. 2 indicate each step.

As shown in the operation flowchart of FIG.
When the telephone is interrupted while the telephone is on standby (S1) (this is caused by transmitting an interrupt signal to the line by a communication device communicating on the same line), an interrupt notification signal is issued from the line. The line control circuit 1 detects the additional information signal (interruption notification signal) from the line by the interruption notification signal detecting means 1A (S2), and the telephone control circuit 2 causes the line control circuit 1 to transmit a resume signal to the line (S3). ).

Thereafter, when the line control circuit 1 detects a restart confirmation signal from the line (S5), the telephone control circuit 2
Causes the telephone to transition to the communication state (S6). When the line control circuit 1 detects a rejection signal from the line (S4), the process returns to the standby state (S1).

As described above, the interrupted telephone can be automatically released and communication can be performed, and there is no need for the interrupting person to give a verbal notification to the transfer destination. For this reason, even if the transfer destination is a distance that cannot be notified verbally, transfer is possible, and automatic transfer between communication devices without human intervention is also possible.

FIG. 4 shows the configuration of a second basic example of the present invention. 2A is a restart control means, 10 is a ring tone generating means for generating a ring tone, and the others are the same as the first basic example of FIG.

FIG. 5 is a flowchart showing the operation of the second basic example of the present invention. Hereinafter, the operation of the second embodiment will be described.
A description will be given using this operation flowchart. FIG.
(S1) to (S9) in the figure show each step.

As shown in the operation flowchart of FIG.
When the telephone is interrupted while the telephone is on standby (S1) (it is generated by transmitting an interruption signal to the line by a communication device communicating on the same line), the line control circuit 1 sends additional information from the line. The signal (interruption notification signal) is detected by the interruption notification signal detecting means 1A (S2), and the telephone control circuit 2 activates the analog circuit 7 and the ring tone utterance means 10 and causes the speaker 6 to emit a ring tone (S3). .

Thereafter, when an off-hook operation is performed (S4), the telephone control circuit 2 causes the ring tone uttering means 10 to stop transmitting the ring tone (S5), and the telephone control circuit 2 restarts the line control circuit 1. A restart signal is transmitted from the signal transmission means 1B to the line (S6), and when a restart confirmation signal is received from the line (S8), the state is changed to a talk state (S9). If a refusal signal is received from the line (S7),
Return to the standby state (S1).

As described above, according to the present invention, when a call is interrupted, a ringing tone can be automatically sounded to set a calling state, and a transition can be made during communication by an off-hook operation.

FIG. 6 shows the configuration of a third basic example of the present invention. 2B is a call identification control unit, 11 is a device number storage unit for storing the device number of the telephone, and the other is the first unit in FIG.
Is the same as the basic example.

FIG. 7 is an operation flowchart showing the operation of the third basic example of the present invention. Hereinafter, the operation of the third basic example will be described using this operation flowchart. In addition,
(S1) to (S7) show each step.

As shown in the operation flowchart of FIG.
A call is interrupted while the telephone is on standby (S1). (This occurs when an arbitrary call identification number is set in the interrupt signal by a communicating device on the same line and the interrupt signal is transmitted to the line.) ), The interruption notification signal detecting means 1A of the line control circuit 1 detects an additional information signal (interruption notification signal) from the line (S2), and the telephone control circuit 2
Then, the number stored in the device number storage means 11 is set as the call identification number in the restart signal (S3), and the restart signal is transmitted to the line (S4).

Thereafter, a restart confirmation signal from the line (this signal is a call identification number in the interruption signal received from the communicating communication device, and a call identification number in the restart signal received from the standby communication device on the same line) When the line control circuit 1 detects that the numbers match, the telephone control circuit 2 changes the telephone to the communication state. Note that a rejection signal from the line (this signal does not match the call identification number in the suspend signal received from the communicating communication device with the call identification number in the resume signal received from the standby communication device on the same line) Is transmitted from the line in the case of (1), the line control circuit 1 detects (S5), and returns to the standby state (S1).

As described above, only the communication device whose device number matches the call identification number can automatically release the interrupted call and perform communication, and the interrupting person verbally verifies the transfer destination. No notification is required. For this reason, even if the transfer destination is at a distance that cannot be verbally notified, transfer is possible, and automatic transfer between communication devices without manual intervention is also possible.

It is self-evident that the telephone number and the sub address information which can be set in the telephone can be used instead of the device number shown in this embodiment. As described above, in the present invention, by using the “call identification” number to identify the transfer destination, the telephone can be transferred only to the specified transfer destination, and the serviceability is greatly improved.

FIG. 8 is based on the first to third basic examples described above .
Ku showing the structure of an embodiment of the present invention. 1C is a restart confirmation signal detecting means, 1D is an interruption signal sending means, and the others are:
4 and 6 are the same. FIG. 9 is an operation flowchart showing the operation of the embodiment of the present invention. Hereinafter, the operation of this embodiment will be described with reference to this operation flowchart. (S1) to (S15) indicate each step.

(S1) to (1) of the operation flowchart of FIG.
The operation of (S5) corresponds to (S1) in the operation flowchart of FIG.
The operation is the same as that in (S5).

A restart confirmation signal from the line (this signal is composed of the call identification number in the interruption signal received from the communicating communication device and the call identification number in the restart signal received from the standby communication device on the same line). When the line control circuit 1 detects that they match, transmission is performed from the line (S6), the telephone control circuit 2 causes the line control circuit 1 to transmit an interruption signal to the line (S7). Note that the number stored in the device number storage unit 11 is not set as the call identification number in the interruption signal. This is because, when there is a communication device having the same device number set on the same line, the communication device restarts the interrupted call.

After the transmission of the interruption signal, if the interruption control signal from the line is detected by the line control circuit 1 (S8), the telephone control circuit 2 transmits the analog circuit 7 and the ring tone generating means 10
Is activated and a ring tone is transmitted from the speaker 6 (S
9). Thereafter, when an off-hook operation is performed (S1
0), the telephone control circuit 2 causes the ring tone generation means 10 to stop transmitting the ring tone (S11), and the telephone control circuit 2 causes the line control circuit 1 to transmit a restart signal to the line (S12), and confirms restart from the line. If a signal is received (S14), the state is changed to a call state (S15). When the refusal signal is received from the line (S13), the process returns to the standby state (S1).

As described above, according to the present invention, a call that has been interrupted is resumed at the transfer destination and then interrupted again, so that a ring tone can be sounded at the transfer destination and a call can be made. Can be transitioned,
If the off-hook operation is not performed at the transfer destination, the call interrupted at the transfer source can be resumed, and the serviceability is greatly improved.

[0034]

As described above in detail, according to the present invention, when a communicating communication device connected to the same line transmits an interruption signal to the line, the interruption notification transmitted from the line is transmitted. Since the line control circuit includes an interrupt notification signal detecting unit for detecting a signal, and a restart signal transmitting unit for automatically transmitting a restart signal to the line when the interrupt notification signal detecting unit detects the interrupt notification signal, It is possible to automatically release the interrupted call and perform communication, and it is not necessary for the interrupting person to give a verbal notification to the transfer destination. Thus, the transfer destination becomes possible transfer even when distances that can not be notified verbally and also allows automatic transfer between communication devices without intervention of a human.

Further, according to the present invention, when the interruption notification signal is detected by the interruption notification signal detecting means, there is provided a ring tone generating means for notifying an incoming call, and the restart signal transmitting means is operated by the off-hook operation to transmit the restart signal. Since the telephone control circuit is provided with the resumption control means, when a call is interrupted, a ringing tone can be automatically sounded to set a calling state, and a transition can be made during communication by an off-hook operation.

Further, in the present invention, there is provided a device number storing means for storing the device number of the communication device, and the device number stored in the device number storing means at the time of transmission of the restart signal line is used as a call identification number in the restart signal. Since the telephone control circuit has the call identification control means for setting and transmitting the call to the line, the call identification number can be used to identify the transfer destination, and the telephone can be transferred only to the designated transfer destination.

Further, according to the present invention, a restart confirmation signal detecting means for detecting a restart confirmation signal transmitted from a line, and, when the restart confirmation signal is detected by the restart confirmation signal detecting means, a suspend signal is transmitted to the line. When the interruption notification signal transmitted from the line in response to the interruption signal is detected by the interruption notification signal detection unit, the incoming call is notified by the ringtone generation unit. When the transfer destination resumes and then suspends again, the ring tone sounds at the transfer destination and the call can be switched to the ringing state. The transition can be made during communication by the off-hook operation, and the off-hook operation cannot be performed at the transfer destination. Can restart a suspended call at the transfer source, greatly improving serviceability.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first basic example of the present invention.

FIG. 2 is an operation flowchart showing the operation of the first basic example of the present invention.

FIG. 3 is a diagram showing a communication sequence with an ISDN line showing a first basic example of the present invention.

FIG. 4 is a block diagram showing a configuration of a second basic example of the present invention.

FIG. 5 is an operation flowchart showing the operation of the second basic example of the present invention.

FIG. 6 is a block diagram showing a configuration of a third basic example of the present invention.

FIG. 7 is an operation flowchart showing an operation of a third basic example of the present invention.

FIG. 8 is a block diagram showing a configuration of one embodiment of the present invention.

FIG. 9 is an operation flowchart showing the operation of FIG. 8 according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Line control circuit 1A Interruption notice signal detecting means 1B Resume signal sending means 1C Resume confirmation signal detecting means 1D Interruption signal sending means 2 Telephone control circuit 2A Resume control means 2B Call identification control means 3 Operation key / switch / volume 4 Speaker Reference Signs List 5 receiver 6 speaker 7 analog circuit 8 audio codec 9 power supply circuit 10 ringtone generating means 11 device number storage means

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04M 1/00 H04M 1/24-1/253 H04M 1/58-1/62 H04M 1/66-1/82 H04M 11 / 00-11/10

Claims (1)

(57) [Claims] In a communication device connected to an ISDN line via a line control circuit and having a telephone control circuit for controlling a man-machine, a communication device in communication connected to the same line outputs an interruption signal. An interrupt notification signal detecting means for detecting an interrupt notification signal transmitted from the line when transmitting to the line, and automatically transmitting a resume signal to the line when the interrupt notification signal detecting means detects the interrupt notification signal. And a restart signal transmitting means for performing the
It has a ringtone generating means for notifying, and
It has a device number storing means for storing, and transmits a line of a restart signal.
Sometimes restarts the device number stored in the device number storage means
Call identification set as call identification number in signal and transmitted to line
Having control means in the telephone control circuit, transmitted from the line
A restart confirmation signal detecting means for detecting a restart confirmation signal;
When the restart confirmation signal detection means detects the restart confirmation signal
Interrupt signal transmitting means for transmitting an interrupt signal to the line;
The interruption notification signal sent from the line in response to the
If detected by the intellectual signal detection means, the ringtone generation means
Communication device characterized in that it is configured to notify incoming calls with
Place.