JPH0771141B2 - Switching communication method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention uses telephone communication to communicate with a partner using a home control device that includes a telephone circuit and also accommodates non-telephone equipment. To a communication by a non-telephone device (for example, a non-telephone communication such as a facsimile communication) or vice versa.

[Conventional technology]

FIG. 8 is a block diagram showing a circuit configuration of a home control device used in the conventional switching communication method.

In other words, in addition to having a basic telephone function that is accommodated in a digital network, a conventional home control device that has a non-telephone device control function such as outgoing / incoming connection of the accommodated non-telephone device and telephone / non-telephone switching communication An example is shown in FIG.

In the figure, 1 is a conventional home control device, 2 is a non-telephone device, 3 is a digital signal from a digital line, and an information signal is developed into a communication control signal from a network. A line interface unit 4 for converting a control signal into a digital signal to the network, a communication circuit 4 for performing a telephone function, and a codec 5 for converting an information signal from the line interface circuit 3 into an analog signal or a communication circuit 4 A codec that converts an analog signal into an information signal, 6 is a dial switch for dial input,
Reference numeral 7 is a PB (push-button dial signal) oscillator, which generates a PB sound for dial confirmation sound transmission, PB signal sound transmission to the network, and end-end (between terminals) signal transmission. PB
Oscillator, 8 is a non-telephone interface circuit for exchanging exchange signals with non-telephone equipment, 9 is a changeover switch, and a changeover switch for changing over the information path to the communication circuit 4 or the non-telephone interface circuit 8, 10 is a control circuit Is a control circuit that analyzes and generates a communication control signal with a network or a non-telephone device, and controls the changeover switch 9 when performing changeover communication. Reference numeral 11 is a changeover key, and a control circuit for performing changeover. A switching key for transmitting to 10 and a digital 1 link request key 12 for transmitting a communication path in which all end-end (between terminals) information buses are digital signals (hereinafter referred to as digital 1 link) ) Is a digital 1 link request key for designating a telephone connection by (1).

In the switching communication method using the in-home control device shown in FIG. 8, the digital 1 link request is made to the network by the post-off-hook digital 1 link request key 12 for the purpose of switching communication later.

As a result, the end-to-end information is used as the path of the digital 1 link, and the signal path for exchanging signals between the exchange and the terminal is extended to end-end. The control circuit 10 is realized by switching between telephone and non-telephone using the changeover switch 9.

FIG. 9 shows a conventional switching sequence.

In the figure, the in-home control device (1 ') and the non-telephone device (2') accommodated therein are connected to the in-home control device (1) and the non-telephone device (2) accommodated therein, via the digital network. First, the digital 1 link request key 12 is pressed to perform telephone communication by the digital 1 link, and the next switch key 11 is pressed to shift to non-telephone communication by the digital 1 link. It will be understood that the procedure of the switching communication method to be performed.

As described above, in the conventional switching communication method, the telephone call as the first communication is a call using the digital 1 link, but normally, the communication that specifies the digital 1 link is not (if the analog line is set in the middle, In the case of a general communication line including the above, the communication charge is higher than that of a telephone call resulting from this (hereinafter referred to as an ordinary non-transparent telephone call), so the telephone call with the Digital 1 link specified is the same telephone call. Nevertheless, it costs more than ordinary non-transparent phone calls.

Further, as shown in FIG. 9, a telephone call on the premise of switching is a digital 1-link call and it is necessary to distinguish it from an ordinary non-transparent telephone call. Since it is necessary to press the 1-link request key 12, the operation is complicated. The conventional switching communication method has such drawbacks.

Further, in a normal non-transparent telephone call, the band frequency of the information bus is limited to the analog band of 4 KHz, and the signal path cannot be extended between end-end, and the information bus was used. Communication means can only pass human voice. For this reason, if you forget to press the Digital 1 link request key 12 and once connect with an ordinary non-transparent telephone, or if you want to perform switching communication during a telephone call, the bandwidth of the information path is limited to 4K Hz. Digital non-telephones do not allow communication, so there is also the drawback that switching services to non-telephone communication cannot be received.

[Problems to be solved by the invention]

Therefore, the problem to be solved by the present invention is that in the switching communication method, the telephone call as the first communication does not have to be the call by the digital 1 link, but the switching service to the non-telephone communication is provided. It can be said that it is to receive.

It is therefore an object of the present invention to provide a switching communication method enabling the above.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a non-transparent communication path that does not pass a digital signal as it is for a telephone communication by a telephone terminal. For non-telephony communication by the above, it is an in-home control device housed in a digital exchange that provides a digital 1-link communication path that allows digital signals to pass through to a terminal as it is. In addition to including a telephone circuit, it also accommodates non-telephone equipment. Using the in-home control device, the communication with the other party having a similar in-home control device is performed from the voice communication from the telephone terminal to the non-voice communication by the non-telephone terminal via the digital exchange, or In the switching communication method for switching to the opposite, a transmitting means, a receiving means, and a switching operation of pushbutton dial signals are provided to each of the in-home control devices that communicate with each other. Equipped with a means.

[Action]

At the time of switching the communication, when switching from the telephone communication which has been performed through the non-transparent communication channel until then to the non-telephone communication which is performed through the digital 1-link communication channel, the switching operation means is performed from the home control device on the calling side. Button to transmit a push button dial signal from the transmitting means, and to receive this by the receiving means of the receiving side home control device, the push button using the transmitting means and the receiving means between the transmitting side and the receiving side is started. After mutual understanding of the switching by exchanging dial signals, the telephone communication up to that point is restored by disconnecting the caller and the callee, and at the timing after restoration of disconnection, the caller's home The control device activates the calling non-telephone device,
Waiting for the activation response, switching is performed by starting non-telephone communication to the receiving side via the digital 1-link communication path, and the non-telephone communication that had been performed via the digital 1-link communication path until then is switched. When switching to telephone communication via a transparent communication path, the switching control means is operated from the home control device on the calling side to send a disconnection signal to the calling side non-telephone device and the digital exchange side. The non-telephone communication that was performed via the one-link communication path is disconnected and restored, and at the timing after the subsequent disconnection of the in-home control device and the non-telephone device, the in-home control device of the transmission side is restored. Starts telephone communication from the terminal to the called party through a non-transparent communication path and performs switching.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an in-home control device used when implementing the switching communication method according to the present invention.

In the figure, 2 to 9 and 11 respectively indicate the same as in FIG. Reference numeral 13 denotes a telephone control function, which has a telephone basic function and a non-telephone control function, and which is necessary for implementing the present invention. 14 is a PB for receiving a PB signal between end-end.
A signal receiver, 15 is a control circuit, which controls a changeover switch 9 for analyzing / generating a switching signal with a network or a non-telephone device and for performing a switching communication, a control for a PB oscillator 7 for performing a switching communication, It is a control circuit that analyzes data received by the PB signal receiver 14.

FIG. 2 is an explanatory diagram showing a sequence for performing switching communication from telephone call to non-telephone communication according to the present invention.

FIG. 3 is an explanatory diagram showing a sequence for performing a switchback communication from non-telephone communication to telephone communication.

Next, the circuit operation of FIG. 1 will be described with reference to FIGS. In FIG. 1, the PB receiver 14 is configured to constantly monitor the received signal from the codec 5.

First, the operation of switching from telephone call to non-telephone communication will be described with reference to FIG.

When the off-hook home control device 13 goes off-hook, the control circuit
A calling procedure is performed between the network 15 and the network as shown in FIG. After that, when dial input is made, the network connects to the called side.

Here, the control circuit 15 stores the dial at this time in preparation for the next transmission. When the home control device 13 'on the called side goes off-hook, a normal non-transparent telephone call state is established. Here, when the switching key 11 is pressed on the home control device 13 on the transmitting side, the control circuit 15 drives the PB oscillator 7 and sends, for example, a button [A] signal of the PB signal ([A] of the PB signal is 697 Hz. 1633H
(It is not a signal that is generated by erroneous dial operation because it is a signal that combines two frequencies of z and is not a combination of frequencies assigned to general dial switches, and is not a signal that is erroneously recognized as that by voice etc.) .

The transmitted PB signal is converted into digital information by the codec 5 and transmitted through the changeover switch 9 and the line interface section 3 to the home controller 13 'on the receiving side. The maximum frequency of the PB signal is 1633 Hz, and even in the case of a non-transparent telephone call in the 4 KHz analog band, it can be transmitted from end to end.
On the other hand, in the home controller 13 'on the receiving side, the PB signal passes through the line interface section 3'and the changeover switch 9',
PB signal receiver converted to analog signal by codec 5 '
Received at 14 '. The signal received by the PB signal receiver 14 'is analyzed by the control circuit 15'. The control circuit 15 'receives S
Then, it is determined that the PB signal is [A], the switching communication operation is started, the PB oscillator 7'is controlled, and a PB signal button [B] signal is transmitted as a confirmation signal (PB signal [B] ] Is a signal that is a combination of two frequencies of 770 Hz and 1633 Hz, and there is no risk of erroneous occurrence, as is the case with signal [A]).

The transmitted PB signal is converted into a digital mechanism by the codec 5'and the changeover switch 9'and the line interface 3 '
Is transmitted to the home controller 13 on the calling side.

In the home controller 13 on the transmitting side, the PB signal [B] is passed through the line interface unit 3, the changeover switch 9 and the codec 5.
It is received by the PB signal receiver 14. The control circuit 15 analyzes that the PB signal [B] received by the PB receiver 14 is a confirmation signal,
The home control device 13 'on the receiving side recognizes that the PB signal [A] has been received.

Further, the control circuit 15 of the in-home controller 13 on the transmitting side drives the PB oscillator 7 to notify the in-home controller 13 'on the receiving side that the switching communication is to be initiated, and for example, the button [C] for the PB signal is transmitted.
Send the signal ([C] of PB signal is 852Hz and 1633Hz 2
It is the same as in the case of the signal [A] that there is no risk of erroneous occurrence in a signal combining frequencies. PB signal sent out [C]
Is transmitted to the home control device 13 'on the receiving side as described above.

The control circuit 15 'of the home control device 13' on the receiving side analyzes the PB signal [C] in the same manner as described above, sends the same PB signal [C] to confirm this, and at the timing T1 regardless of the on-hook state / Take the disconnection procedure. Here, by performing the disconnection procedure even on the off-hook, the home controller 1
It is possible to make 3'empty so that a later non-phone call can be received. The home control device 13 'on the receiving side starts a timing T4, which is sufficiently longer than the connection time on the calling side, with a timer (not shown) in case there is no subsequent non-phone call due to an abnormality in the device on the calling side. When it times out, in the case of (a) off-hook, the outgoing procedure is automatically performed, and in the case of (b) on-hook, the normal empty state is set. By this abnormality processing, even if an abnormality remains off-hook, a telephone call is automatically made, and it is possible to notify the operator on the receiving side of the abnormality by a piggy tone from the handset or a howler.

The timing when the control circuit 15 of the originating side home control device 13 receives the PB signal [C] from the receiving side home control device 13 '
Take the cutting procedure with T2 (T2> T1). Here, the timing T2 is set to be longer than the above-described timing T1, which may be considered that the receiving side has always disconnected by then.

After that, the control circuit 15 of the home control device 13 on the calling side activates the non-telephone device 2 through the non-telephone interface circuit 8, and when the activation response from the non-telephone device 2 is received, it is transmitted to the network through the line interface circuit 3. , Make non-phone calls.

At this time, when dialing from the network is possible, the dial that has been stored for the time of calling is transmitted.
Therefore, it is possible to connect to the other party with whom the telephone communication has been made.
The sequence after this is the same as in the case of normal non-telephone connection, and non-telephone communication is started with the home control device 13 'on the receiving side.

During the switching procedure, the home control device 13 'on the receiving side is
If there is another incoming call, the non-telephone call from the home control device 13 on the calling side becomes busy, but the time required for the switching procedure is very short, so the probability of another incoming call is extremely small. . Even if it occurs, the caller's in-home control device 13 is provided with a busy display from the network, so that the operator can easily understand it and do not cause unnecessary confusion.

Next, the operation for returning to the telephone call from the non-telephone communication will be described with reference to FIG.

When the switching key 11 is pressed while communication is being performed by the non-telephone device through the above-described procedure, the control circuit 15 of the home control device 13 on the calling side causes the non-telephone device 2 to connect to the non-telephone device interface circuit. A disconnection instruction is sent through 8. Further, the control circuit 15 sends a disconnection signal to the network through the line interface unit 3. After that, a disconnection procedure is taken between the network and the home control device 13, and the home control device 13 is restored.
It should be noted that the above procedure can be similarly operated even when the disconnection signal from the non-telephone device 2 is received. On the other hand, the network transfers this disconnection request and transmits a disconnection signal to the home control device 13 'on the receiving side.

When the disconnection instruction is received through the line interface unit 3 ', the control circuit 15' of the home control device 13 'on the receiving side receives the disconnection procedure and restores the disconnection procedure with the network.

After the recovery, the control circuit 15 of the home control device 13 on the calling side waits for a timing T3 necessary and sufficient for the home control device 13 'on the receiving side to recover, and normally enters the nontransparent telephone call operation. This operation is similar to the telephone calling operation described above with reference to FIG. However, as for dialing, the dialing that has been stored in preparation for the subsequent calling is sent at the time of the first calling. For this reason, it is possible to connect to the other party who first performed the switching communication from the telephone call to the non-telephone device.

The home control device 13 'on the called side returns a response at the same time as the incoming call in the off-hook state, and in the on-hook state, returns a response via the off-hook after ringing the ringer to establish a telephone call state with the home control device 13 on the calling side. Become.

It should be noted that the home control device 1 on the receiving side during the above failback procedure
When there is another incoming call at 3 ', the home controller 13 on the outgoing side
Although the telephone call from the telephone is busy, the probability that another incoming call will occur is extremely small because the time required for the above switchback procedure is very short. Even if it occurs, the caller's in-home control device 13 is provided with a busy display from the network, so that the operator can easily understand it and do not cause unnecessary confusion.

As described above, according to the switching communication method of the present invention, a call is disconnected once to switch the call.
The in-home control device 13 operates with the same man-machine interface as the conventional switching communication for making a link request.

Although the above description is for the case where the switch key 11 is pressed from the home controller 13 on the calling side, as shown in FIG.
When the switch key 11 is pressed, the home control device 1 on the receiving side
From 3 ', for example, the button [D] signal of the PB signal (the [D] of the PB signal is a combination of two frequencies 941 Hz and 1633 Hz, and there is no risk of erroneous occurrence, as in the case of the signal [A]. ) Is first transmitted and the subsequent steps are carried out in the same manner as described above, whereby the home control device 13 'on the receiving side can be easily transmitted.
It is possible to realize switching communication from.

FIG. 5 is a flow chart showing an operation flow of the control circuit 15 in FIG.

First, there is a vacant state of the home control device (control circuit 15),
From that state, there are cases where the call goes off-hook to proceed with the telephone call, where it proceeds to the non-phone call, and when there is an incoming call from the other party. In each case, the operation flow is shown. , It is not necessary to explain these again.

FIG. 6 is a flow chart showing a flow at the time of switching operation of the control circuit 15 in FIG.

First, there is a state where a telephone call is being made as the caller side of the in-home controller (control circuit 15). After that, on-hook, when the switch key 11 is pressed, and when a PB [D] signal is received from the other party. , And the operation flow is shown for each of them. These will not need further explanation.

FIG. 7 is a flow chart showing the flow of the control circuit 15 in FIG.

First, there is a state where a telephone call is being made as the receiving side of the in-home control device (control circuit 15). In the following, there are cases of on-hook, reception of a PB [A] signal from the other party, and pressing of the switching key 11. And the subsequent operation flow for each is the same as in the case of FIG.

〔The invention's effect〕

As described above, according to the present invention, the PB signal is used to automatically perform the end-to-end mutual communication, and the normal non-transparent telephone call is temporarily disconnected and the non-telephone call is redone. Since the switching communication is performed in this way, ordinary non-transparent communication can be performed during the telephone call prior to the switching, so that the call can be made without paying a high charge. In addition, since it is not necessary to be aware of the Digital 1 link when making a telephone call, there is no need to press the Digital 1 link request key prior to making a call, and the Digital 1 link request key itself is unnecessary. .

Further, when the present invention is carried out by combining the conventional switching communication with the switching communication, even if the user forgets to press the Digital 1 link request key, or if the switching communication becomes necessary after starting the telephone call, the switching key There is an advantage that switching communication can be performed by pressing.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of a home control device used when carrying out a switching communication method according to the present invention, and FIG. 2 is a sequence for performing switching communication from telephone call to non-telephone communication according to the present invention. FIG. 3 is an explanatory view showing a sequence when the switchback communication from the non-telephone communication to the telephone call is similarly performed, and FIG. 4 is an explanatory view showing a sequence when the home control device on the receiving side is also switched. 5 and 5 are flow charts showing an operation flow of the control circuit 15 in FIG. 1 when making and receiving a call, FIG. 6 is a flow chart showing a flow of switching operation of the control circuit 15 in FIG. 1, and FIG. 1
FIG. 8 is a flow chart showing a flow of the control circuit 15 in the switching operation, FIG. 8 is a block diagram showing a circuit configuration of a home control device used in a conventional switching communication method, and FIG. 9 is an explanation showing a conventional switching sequence. Fig. Explanation of symbols 1 ... Conventional in-home control device, 2 ... Non-telephone device, 3 ...
Line interface section, 4 ... call circuit, 5 ... codec, 6 ... dial switch, 7 ... PB oscillator, 8 ...
… Non-telephone interface circuit, 9 …… Changeover switch, 10
...... Control circuit, 11 ...... Switch key, 12 ...... Digital 1 link request key, 13 ...... Home control device embodying the present invention,
14 …… PB signal receiver, 15 …… Control circuit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fujio Amemiya, 2356 Take, 1-chome, Yokosuka City, Kanagawa Prefecture, Yokosuka Electro-Communications Research Laboratories, Nippon Telegraph and Telephone Public Corporation (56) Reference JP-A-58-164355 (JP, A)

Claims (1)

[Claims] 1. A non-transparent communication path that does not pass a digital signal as it is for telephone communication by a telephone terminal, and a digital signal is transmitted from a terminal to a terminal for non-telephone communication by a non-telephone terminal. A home control device housed in a digital exchange that provides a digital 1-link communication path that passes through as it is, using the home control device that includes a telephone circuit and also accommodates non-telephone equipment. In the switching communication method for switching communication between the other party having a similar home control device via the exchange from telephone communication to non-telephone communication, or vice versa, each of the home control devices communicating with each other , A push button dial signal transmission means, a reception means, and a switching operation means are provided, and telephone communication which has been performed through a non-transparent communication path up to that time is performed. When switching to the non-telephone communication performed through the digital 1-link communication path, the switching control means is operated from the home control device on the calling side to transmit a push button dial signal from the transmission means, and this is transmitted to the home control device on the receiving side. After beginning to start receiving by the receiving means, by exchanging push button dial signals between the sending side and the receiving side using the transmitting means and the receiving means, mutual understanding of the switching, and until then Disconnects and restores the telephone communication of each of the caller side and the callee side. At the timing after the disconnection is restored, the home control device of the caller side activates the calling non-telephone device, waits for the activation response, and then waits for the digital 1 link. Switching is performed by starting non-telephone communication to the called side via the communication path of the non-telephone communication, which was previously performed via the digital 1-link communication path. When switching to telephone communication performed via the telephone, the switching control means is operated from the home control device on the calling side to send a disconnection signal to the non-telephone device on the calling side and the digital exchange side, and the communication of the digital 1 link is performed until then. The non-telephone communication that was performed via the road was disconnected and restored, and at the timing after the subsequent disconnection of the home control device and the non-telephone device on the called side, after the restoration, non-transmission from the home control device on the calling side A switching communication method characterized by starting telephone communication to a called side via a communication path and performing switching.