JPH03132245A - Private exchange - Google Patents

Abstract

PURPOSE:To make a response to an incoming call even during dialing from a terminal by connecting a telephone set and the terminal equipment, which can be automatically dialed, paired with this telephone set to a private exchange by separate lines. CONSTITUTION:When there is the incoming call from a calling party side to a telephone set 15 during the automatic dialing of a terminal equipment 18, a central processing unit 20 sends out a ringing tone from an interface unit 16 through an extension 14 to the telephone set 15 and the telephone set 15 is rung. In such a way, interface units 16 and 19 are separately provided for the telephone set 15 and the terminal equipment 18 and a paired relationship between the telephone set 15 and the terminal equipment 18 is stored in the central processing unit 20. Then, automatic dialing from the terminal 18 is executed without being passed through the extension of the telephone set 15. Thus, the response can be made even to the incoming call during dialing without fail.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a private branch exchange to which a telephone and a paired terminal capable of automatic dialing are connected.

BACKGROUND OF THE INVENTION FIG. 2 shows a connection configuration for automatic dialing from a terminal device in a conventional private branch exchange. In FIG. 2, 1 is a private branch exchange, which includes an interface unit 3 connected to a central office line 2, an interface unit 6 connected to a telephone 5 via an extension 4, and a system for controlling these interface units 3 and 6. A central processing unit 7 is provided. An interface unit 6 for the telephone set 5 is connected via an extension 4 to a network control unit (NCU).
8 is connected to the network control device 8, and a terminal device 9 such as a personal computer capable of automatic dialing is connected to the network control device 8.

Next, the operation of the above conventional example will be explained. In FIG. 2, when automatic dialing is performed from the terminal device 9, the network control device 8 captures the extension line 4 and sends out a dial signal. The dial signal is detected by the interface unit 6 and sent to the central processing unit 7. If the call from the terminal device 6 is for another extension, the central processing unit 7 calls the other telephone via another interface unit.

If the call from the terminal device 6 is directed to the office line 2, the central processing unit 7 controls the interface unit 3 to capture the office line 2 and sends out a dial signal. When the other party sends a response signal, the central processing unit 7 detects this and connects the communication path to the telephone 5, and the operator sends a response signal to the telephone 5.
By picking up the handset, the network control device 8 is disconnected from the extension 4, and communication between the telephone 5 and the other party becomes possible.

In this way, even with the above-mentioned conventional private branch exchange, calls can be made from a telephone by automatic dialing from a terminal device.

Problems to be Solved by the Invention However, in the above-mentioned conventional private branch exchange, since the terminal device that performs automatic dialing is connected to the same extension line as the telephone, the incoming call from the other party through the central office line is busy. , there was a problem that the phone on this side could not respond.

The present invention is intended to solve these conventional problems, and aims to provide an excellent private branch exchange that can respond to an incoming call even while dialing from a terminal.

Means for Solving the Problems In order to achieve the above object, the present invention provides separate interface units for the telephone and the terminal so that automatic dialing from the terminal can be performed without going through the extension of the telephone. This is what I did.

Effects The present invention has the following effects due to the above structure. In other words, since the terminal device performs automatic dialing directly without going through the telephone's extension, if there is an incoming call from the other party to the telephone while dialing, the telephone will ring and the incoming call will be answered. can respond reliably to

Embodiment FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, 11 is a private branch exchange, which includes an interface unit 13 connected to a central office line 12, and an interface unit 1 connected to a telephone 15 via an extension 14.
6, an interface unit 19 connected to a terminal device 18 via a line 17, and a central processing unit 20 for controlling this interface unit 13, 16, 19. The terminal device 18 is a device capable of automatic dialing, such as a personal computer, and is paired with the telephone 15. The interface unit 16 is a CCITT
V, 24 is omitted) tZ is used.

Next, the operation of the above embodiment will be explained. In the above embodiment, first, the fact that the telephone set 15 and the terminal device 18 are in a paired relationship is registered and stored in the central processing unit 20. Now, when automatic dialing is performed from the terminal device 18, a dial signal is sent from the interface unit 19 to the central processing unit 20. If the call from terminal device 18 is for another extension, central processing unit 20 calls the other telephone via another interface unit. If the call from the terminal device 18 is directed to the central office line 12, the central processing unit 20
3 to capture the central office line 12 and send out a dial signal. If the interface unit 13 detects that the other party has responded due to polarity reversal, etc., the central processing unit 2
o connects the telephone line to telephone 15, and by picking up the handset of telephone 15, o can talk to the other party.

On the other hand, if there is an incoming call from the other party to the telephone 15 while the terminal device 18 is automatically dialing, the central processing unit 2
0, the interface unit 16 sends a ring tone to the telephone 15 through the extension 14 to cause it to ring. The telephone 15 is notified of the incoming call by this ringing tone, and picks up the handset and answers the call. In this case, the central processing unit 20 can notify and/or display to the terminal device 18 that the telephone 15 has responded to the incoming call.

As described above, according to the above embodiment, interface units are provided separately for the telephone and the terminal, and the pairwise relationship between the telephone and the terminal is stored in the central processing unit, and automatic dialing from the terminal is performed. Because this is done without going through the telephone extension, automatic dialing from the terminal device can be done as before, and even incoming calls that are being dialed can be answered reliably. has.

Effects of the Invention As is clear from the above embodiments, the present invention provides a telephone set and a terminal device that is paired with the automatic dialing function and are connected to a private branch exchange through separate lines. This system has the effect that automatic dialing can be performed without blocking the line, and that the telephone can reliably respond to incoming calls during automatic dialing.

[Brief explanation of the drawing]

FIG. 1 is a schematic block diagram of a private branch exchange according to an embodiment of the present invention, and FIG. 2 is a schematic block diagram of a private branch exchange according to a conventional example. 11... Private branch exchange, 12... Central office line, 13.16.
19...Interface unit, 14...Extension,
15...Telephone, 17 lines, 18...Auto dialable terminal, 20...Central processing unit.

Claims (1)

[Claims] an interface unit connected to a central office line, an interface unit connected to a telephone, an interface unit connected to an automatic dialing terminal device paired with the telephone, and a central processing unit that controls each of the interface units. A private branch exchange equipped with