JPS6046191A - System for terminating connection of trunk line - Google Patents

Abstract

PURPOSE:To perform a trunk line terminating connection service superior in extensibility and utility by using a voice synthesizing circuit and a push-button signal receiving circuit to perform terminating connection of a trunk line. CONSTITUTION:A control circuit 300 connects a trunk line trunk 201 and a voice synthesizing circuit 600 by a channel 700 of a channel network 400 and transmits a voice guidance requesting transmission of a push-button PB signal to the trunk line. Thereafter, the channel is switched to a channel 701, and a PB signal receiving circuit 500 is connected to the trunk line trunk 201. The PB signal which is transmitted from a calling subscriber of the trunk line in accordance with the voice guidance is detected by the circuit 500, and its information is sent to the circuit 300. The circuit 300 performs a line connection processing on a basis of information of the received PB signal.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a central office line incoming call connection processing system in a private automatic branch exchange connected to a central office line.

In private automatic branch exchanges, there are a distributed response method and a dial-in method as methods for connecting incoming calls to a central office line without involving an operator.

In the distributed response system, extension telephones with the function of a central office line relay stand are installed in a distributed manner to respond to incoming calls from the central office line and connect to the desired extension, which requires human intervention.

On the other hand, with the dial-in method, incoming calls from the central office line are automatically connected directly to the extension line, and because it is connected one-to-one with the central office line trunk and the extension line is fixed, it lacks expandability and versatility. There were drawbacks.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a central office line termination connection system with high expandability and versatility.

In order to achieve the above object, the central office line incoming call connection system according to the present invention is a central office line incoming connection system in a private automatic branch exchange having a central branch trunk, which includes a voice synthesis circuit that sends voice to the central office line, and a voice synthesis circuit that sends voice to the central office line, and a voice synthesis circuit that transmits voice from the central office line. a button signal receiving circuit for detecting a button signal; when the central office line trunk detects an incoming call from the central office line, the voice synthesis circuit sends voice guidance to the central office line via the central office line trunk; The button signal receiving circuit receives the button signal sent from the central office line in response to the voice guidance, and performs subsequent connection processing in accordance with the signal.

According to the above configuration, the object of the present invention can be completely achieved.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a private automatic branch exchange to which a central office line termination connection system according to the present invention is applied.

In FIG. 1, 101 is a central office line, and central office line trunk 2
It is connected to 01. 500 is a bush button (hereinafter referred to as PB) signal receiving circuit, 600 is a voice synthesis circuit, and 300 is a control circuit. When the office line trunk 201 detects an incoming call from the office line 101, it transmits the incoming call information to the control circuit 300. The control circuit 300 connects the office line trunk 201 and the speech synthesis circuit 600 through the communication path 700 of the communication path network 400, and makes a preset setting to request that the PB double signal be sent to the office line. Send out some voice guidance. After that, the communication path is switched to 701 and the PB signal receiving circuit 500
is connected to the central office line trunk 201. FB double signal P sent by the caller on the central office line in accordance with voice guidance
It is detected by the B signal receiving circuit 500, and this information is sent to the control circuit 300K.

The control circuit 300 performs line connection processing based on the received FB multiplied signal information.

FIG. 2 is a block diagram showing another embodiment of the invention.

In this example, a PB signal receiving circuit 200 and a speech synthesis circuit 600
This shows the case where the communication path is shared. That is, the central office line trunk 201-h! - When an incoming call from the central office line 101 is detected, the incoming call information is transmitted to the control circuit 300. Control circuit 30
0 connects the office line trunk 201, the voice synthesis circuit 600, and the I'B signal receiving circuit 500 to the office line trunk 201 through the communication path network 4000 and the communication path 700. Here, the voice synthesis circuit 3-600 sends voice guidance to the central office line. Thereafter, the PB signal receiving circuit 500 detects the PB double signal from the office line, and performs line connection processing according to the PB signal information received by the control circuit 300.

As described above in detail, the present invention has the effect of providing a central office line incoming call connection service with excellent expandability and versatility by using a voice synthesis circuit and an FB receiving circuit to connect an incoming call to a central office line.

[Brief explanation of drawings]

FIG. 1 and FIG. 2 are block diagrams each showing an embodiment of a private automatic branch exchange to which a central office line incoming call connection system according to the present invention is applied. 101... Office line 201... Office line trunk 300.
...Control circuit 400...Call network 500...FB
Receiving circuit 600...Speech synthesis circuit 700, 701
...Call path 4-

Claims (1)

[Claims] In a central office line incoming call connection system in a private automatic branch exchange having a central office line trunk, a voice synthesis circuit for transmitting voice to the central office line and a button button signal receiving circuit for detecting a button signal from the central office line are provided, and the above-mentioned When the central office line trunk detects an incoming call from the central office line, the voice synthesis circuit sends voice guidance to the central office line via the central office line trunk;
A central office line incoming call connection system characterized in that a button signal sent from the central office line in response to the voice guidance is received by the button signal receiving circuit, and subsequent connection processing is performed in accordance with the signal.