JPS63110864A - Terminal equipment selecting and connecting device - Google Patents

Abstract

PURPOSE:To make a period for selecting a terminal equipment free of charge and to use a device in common by dividing a device, which selects a prescribed terminal equipment according to the call of a caller and connects it to a subscriber line, into the device located at a station side and the device located at the terminal equipment side. CONSTITUTION:The device consists of the device 2 located at a station side and connected between the switch frame 1 of an exchange, to which a line from other station is connected through the incoming trunk 5 of the exchange, and the subscriber line 3, and the device 4 located at a terminal equipment side and connected between plural terminal equipments 6, 7, 8 and the line 3. The device 2 has an incoming free answering function, a guidance transmitting function, a PB signal receiving function, a terminal selecting signal transmitting function and a call signal transmitting function, while the device 4 has a call signal detecting function, a terminal equipment selecting signal receiving function, and a terminal equipment selecting and connecting function. On an incoming, the device 2 performs once an incoming free answer, receiver a terminal equipment selecting signal from the caller, transmits it to the device 4 selects and connects to the equipments 6-8, calls the terminal equipment, and cancels an incoming free answering state according to the answer of the terminal equipment, then a communicating state can be completed.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a selective connection device that selects and connects a terminal device desired by a calling party from a plurality of terminal devices connected to a subscriber line. The present invention relates to terminal device selection and connection means for selecting and connecting a plurality of terminal devices connected to a user line.

[Conventional technology]

Conventionally, multiple terminal devices, such as telephones and facsimile communication terminals (hereinafter referred to as F), are connected to the same subscriber line of the called party.
A selective connection device is connected between multiple terminal devices and the same subscriber line, and is used to select and connect a terminal device desired by a caller from a personal computer communication terminal (AX terminal), a personal computer communication terminal, etc. There is a selective connection device that selects and switches devices and connects them to subscriber lines.

In this selective connection device, for example, the called party switches the line to a FAX terminal and sets the FAX to automatic call receiving mode. Even if the caller connects to the called party with the purpose of making a call, the fax terminal automatically answers the incoming call, and a beep tone for fax communication is sent out, preventing the purpose of the call from being achieved. There is a problem in that not only is the call not answered, but the caller is also charged because they are answering the call, and some callers do not even know what the beep sound is.

In this way, with conventional selective connection devices that use manual switching, there is no problem when making an outgoing connection because the line can be switched to a telephone, fax terminal, or PC communication terminal, but when a call is received, the caller It is not possible to selectively connect to a telephone, fax terminal, or personal computer communication terminal. For this reason, if a selective connection device using manual switching is not used, three subscriber lines are required, each having its own telephone number and having to receive calls independently.

As an alternative to the conventional selective connection device as described above,
Automatic response selection connection device based on the following methods:
It has been proposed by the Telecommunications Technology Council and the Telecommunications Network Advancement Committee as an interim report on "technical issues related to the advancement of telecommunications networks for non-telephone services."

According to the proposed method, when a call is received, the terminal device automatically answers the call and automatically announces it to the caller to support multiple terminal devices, such as "0" for a telephone and "1" for a fax terminal.
, the PC communication terminal guides the caller to send a button dial signal (hereinafter referred to as PB double signal) such as "2", and it is possible to send and receive PB damage signals from end to end, and the caller Communication is possible by selecting the type of terminal device, then sending a calling signal from the built-in signal device of the selected connection device to the corresponding terminal device (telephone, fax terminal, PC communication terminal), and responding at the receiving terminal. shall be.

[Problem that the invention seeks to solve]

The selective connection device proposed above automatically responds to the exchange before the terminal device responds to the exchange, and therefore has the disadvantage that the caller is billed from this point on.

Furthermore, it requires an automatic announcement function and must also be equipped with a paging signal for the terminal equipment, making the selective connection device relatively expensive.

SUMMARY OF THE INVENTION The object of the present invention is to eliminate such drawbacks and to provide a simplified and comprehensively economical terminal equipment selection connection device that eliminates charges during the caller's terminal equipment selection. .

[Means for solving problems]

The present invention provides a terminal that selects a predetermined terminal device from among a plurality of terminal devices of a called party connected to the same subscriber line in response to a call from a calling party, and connects this terminal device to the subscriber line. In the device selection connection device, a toll-free answering means is connected between the subscriber line and the central office side and responds to a call made by the caller free of charge, and sends a guidance message to the caller. a guidance message sending means, a PB signal receiving means for receiving a push-button dial signal (hereinafter referred to as a PB double signal) from a caller based on the guidance message, and a calling signal sending means for sending a calling signal to the subscriber line; a terminal device selection signal sending means for sending a terminal device selection signal based on the PB defect signal to the subscriber line; and a station-side installation device connected between the plurality of terminal devices and the subscriber line, A terminal equipment side comprising a calling signal detection means for detecting a calling signal, a terminal equipment selection signal receiving means for receiving the terminal equipment selection signal, and a terminal equipment selection connection means for selecting and connecting a terminal equipment based on the terminal equipment selection signal. It is characterized by consisting of an installation device.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. This terminal equipment selection and connection device is a station connected between a switch frame (including control system equipment) 1 of an exchange and a subscriber line 3, to which lines from other stations are connected via a large trunk 5 of the exchange. Side installation device 2 and multiple terminal devices 6, 7.8
and a terminal device installation device 4 connected between the subscriber line 3 and the subscriber line 3. In the figure, 9 is the trunk within the exchange.

The station side installed device 2 has a free incoming call answering function, a guidance sending function, a PB signal receiving function, a terminal selection signal sending function, and a calling signal sending function, while the terminal equipment side installed device 4 has the following functions:
Accommodates multiple terminal devices, has a call signal detection function, and a terminal device selection signal reception function.

It has a terminal device selection connection function.

According to the selective connection device of this embodiment, the station-side installed device 2 once responds to the incoming call free of charge, receives a terminal device selection signal from the caller during that time, and transmits this information to the terminal device-side installed device 2. , selects and connects the terminal device 6°7.8, calls the terminal device, and releases the above-mentioned free incoming call response state in response to the terminal device response, and sets the communication state.

This embodiment will be explained in detail using FIGS. 2 and 3, which are more detailed block diagrams. Figure 2 shows the entry trunk 5.
FIG. 3 is a circuit diagram showing the configuration of the switch frame 12 station side installation device 2, and FIG. 3 is a circuit diagram showing the configuration of the terminal equipment side installation device 4.

In Figure 2, 10 is a relay, 10a? ! : fo
b is a relay contact of relay 10, lla and llb are relay contacts, 12 is a 16112.75V calling signal generator, 1
3 is an AC emotionless relay, 13a is an AC emotionless relay 13
14a, 14b are lines, 15 is a capacitor, 16 is a full-wave rectifier, 17 is a relay, 17a is a relay contact of relay 17, 18 is a 48V battery, 19 is a resistor, 20 is a rectifier, 21 is a relay, 22a and 22b are relay contacts, 23 is a 2-wire 4-wire conversion circuit, 24 is a talkie circuit,
25 is a PB signal receiving circuit, 26 is a control circuit, 27a and 2
7b is a relay contact, 30a and 30b are relay contacts, 31
is a terminal equipment selection signal sender circuit.

In Fig. 3, 28 is a full wave rectifier, 29 is a relay, 2
9a, 29b and 29c are relay contacts of relay 29,
32 is a receiver circuit, 33 is a relay, 33a, 33b, and 33c are relay contacts of relay 33, 34a, 34b
and 35a, 35b and 36a, 36b are relay contacts, 3
7, 38 and 39 are call monitoring circuits, 40 is a control circuit, 41
is a capacitor, and 60 is a relay contact.

Next, the operation of this embodiment will be explained with reference to the flowchart shown in FIG. In response to a call from a caller from another station, the connection operation of the incoming trunk 5 progresses to the relay contacts 10a, 10.
b, lla, llb are working and switch frame 1
It is assumed that the connections of the internal switches, etc. have been completed and a call signal is being sent to the terminal equipment. The 16Hz calling signal from the 16Hz, 75V calling signal generator 12 passes through the AC silent relay 13, passes through the relay contacts 10a and lla, passes through the switch frame 1, and is sent to the station installation device 2 via the line 14a. (step ■). In the station-side installation device 2, the 168Z calling signal passes through the capacitor 15 and is full-wave rectified by the full-wave rectifier 16, and the relay 17 is operated by the full-wave rectified calling signal (step 2). relay 1
7 operates, the contact 17a of the relay 17 activates the battery 18.
(voltage value -48■) is resistance 19. It passes through the rectifier 20 and flows to the line 14a. As a result, the ground potential superimposed on the 16Hz ringing signal is transferred to the relay 13 of the incoming trunk 5. It passes through the relay contact 10a and the relay contact 11a, passes through the switch frame 1, and passes through the rectifier 20 of the station-side installation device 2. The AC current flows through the relay contact 17a and the resistor 19 to the battery 18, and the AC insensible relay 13 operates. The break contact 13a is activated by the operation of the AC insensible relay 13, and the relay 10 is restored (step ■). When the relay 10 is restored, the communication path of the incoming trunk 5 is extended to the relay 21 by the relay contacts 10a and 10b of the relay 10, and the calling party and the switch frame 1 are connected. The above operation is realized by the free incoming call response function of the station-side installation device 2, and as a result, a free incoming call response state is established.

In this incoming call free response state, the control circuit 26 of the station-side installed equipment 2
operates the relay contacts 22a and 22b, and connects the communication path to the talkie circuit 24 and the PB signal receiving circuit 25 via the 2-wire and 4-wire conversion circuit 23 using the relay contacts 22a and 22b. The talkie circuit 24 connects each terminal device 6,
7. Send a guidance message to send a different PB signal every 8 times (for example, send a guidance message such as "Press O for telephone, 1 for FAX terminal, 2 for PC communication") (Step ■) . The above operations are realized by the guidance sending function of the station-side installation device 2.

The calling party sends a PB double signal corresponding to the desired terminal device 6 (step 2). The PB signal receiving circuit 25 receives this PB double signal, sends this information to the control circuit 26, and stops sending out the guidance message (step 2). The above operations are realized by the PB signal receiving function and guidance sending function of the station-side installation device 2.

The control circuit 26 operates the relay contacts 27a and 27b, and sends out the 1682 calling signal from the calling signal generator 12 to the terminal equipment side installation device 4 shown in FIG. 3 via the subscriber line 3 (step 2). The above operations are realized by the calling signal sending function of the station-side installation device 2.

In the terminal equipment side installation device 4, the 16Hz calling signal passes through a capacitor 41, is full-wave rectified by a full-wave rectifier 28,
Activating the relay 29, the relay contact 29a of the relay 29,
29b and 29c are operated (step ■). The above operation is realized by the call signal detection function of the terminal equipment side installation device 4.

Next, the control circuit 26 of the station-side installation device 2 is connected to the relay contact 30a.
, 30b to operate the terminal device selection signal sender circuit 31.
The terminal device side installation device 4 sends a terminal device selection signal (PB double signal is a DP double signal, a signal for selecting the terminal device).
(Step ■). The above operation is realized by the terminal device selection signal sending function of the station-side installation device 2.

In the terminal equipment side installation device 4, by operating the relay 29 in step (2), the relay contact 29c of the relay 29 is activated.
is operated to operate the relay 33, the relay contacts 33a and 33b of the relay 33 are operated, and the receiver circuit 32 is connected to the communication path. The receiver circuit 32 performs step ■
The terminal device selection signal sent by the terminal equipment selection signal is received. The above operation is realized by the terminal equipment selection signal receiving function that the terminal equipment side installation device 4 has. When the receiver circuit 32 receives the terminal equipment selection signal, the receiver circuit 32 contacts the relay contacts (34a, 34
b) , (35a, 35b) , (36a.

36b) is selected and operated (step @l). Now, assuming that the relay contacts 34a and 34b are selectively operated, the terminal equipment 6 is selectively connected to the subscriber line 3. The above operation is realized by the terminal device selection and connection function that the terminal device side installation device 4 has.

Next, the station-side installation device 2 restores the relay contacts 30a and 30b. Then, the relay contacts 27a and 27b are connected to 1 again.
A 6H2 ringing signal is sent (step 0), and this 16H
The z calling signal is sent to the terminal device 6 through the relay contacts 34a and 34b, and this terminal device 6 desired by the caller is called (step @). When the terminal device 6 responds to this calling signal, the free incoming call response state is canceled and the calling party is billed from this point on.

In addition, at this time, the control circuit 40 of the terminal equipment side installation device 4
operates the relay contact 60 so that the relay 29 does not operate again.

The above explanation of the operation has only been given at the time of receiving a call, but to explain the outgoing call from the terminal device, the call monitoring circuits 37, 38, and 39 of the terminal device in Fig. 3 detect, for example, that the terminal device 6 goes off-hook. If the signal is transmitted to the control circuit 40 and the relay contacts 34a and 34b are operated, the line is extended and a transmission operation can be performed.

Next, FIG. 4 shows a block diagram of a terminal device selection and connection device according to another embodiment of the present invention. This terminal device selection and connection device includes a station-side installation device 43 connected between a switch frame 42 to which a line from another station is connected via an incoming trunk 46 and a subscriber line 44, and a plurality of terminal devices 47. .4
8.49 and a terminal equipment side installation device 45 connected between the subscriber line 44 and the subscriber line 44.

The terminal device selection and connection device according to this embodiment is intended to make the office side installation device 43 more economical, and the station side installation device 43 is composed of a line support section 50, a switch section 51, and a control section 52. . The line support section 50 includes a calling signal detection circuit,
It has a ring trip signal sending circuit, etc., and the switch section 51
links a large number of line support units 50 and a small number of control units 52, and the control unit 52 has a 2 LA 4 line conversion circuit, a talkie circuit, a PB signal receiving circuit, a terminal device selection signal sender circuit, etc. .

〔Effect of the invention〕

As explained above, the present invention divides the selective connection device into the station-side installed device and the terminal device-side installed device, so that no charges are incurred while selecting the terminal device, and the station-side installed device can share equipment. In addition to this, the equipment installed on the terminal equipment side is simplified and the overall cost is improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram of the station-side installation device, FIG. 3 is a block diagram of the terminal device-side installation device, and FIG. 4 is a block diagram of the device installed on the terminal equipment side. FIG. 5 is a block diagram showing another embodiment of the present invention. FIG. 5 is a flowchart for explaining the operation. 42... Switch frame 2.43... Office side installation device 3.44... Subscriber line 4.45... Terminal equipment side installation device 5.46... Incoming trunk 6, 7. 8.47.48.49...Terminal equipment 50.
...Line correspondence section 51...Switch section 52...Control section

Claims (1)

[Claims] (1) A terminal device that selects a predetermined terminal device from among a plurality of terminal devices of the called party connected to the same subscriber line in response to a call from the calling party, and connects this terminal device to the subscriber line. In the selective connection device, a toll-free answering means is connected between the subscriber line and the central office side and responds to a call made by the caller free of charge, and a guidance message is provided to send a guidance message to the caller. a sending means, a PB signal receiving means for receiving a push-button dialing signal (hereinafter referred to as a PB signal) from a calling party based on the guidance message, a calling signal sending means for sending a calling signal to the subscriber line, and the PB signal. a terminal equipment selection signal sending means for sending out a terminal equipment selection signal to the subscriber line; a terminal equipment side installation device having a calling signal detecting means for receiving the terminal equipment selection signal; a terminal equipment selection signal receiving means for receiving the terminal equipment selection signal; and a terminal equipment selection connection means for selecting and connecting a terminal equipment based on the terminal equipment selection signal. A terminal equipment selection and connection device characterized by: