JPS6348094A - Pb dial signal reception system - Google Patents

Abstract

PURPOSE:To prevent the infiltrating of information from a voice guidance transmitter by changing over a communication bus to a PB transmission terminal from the voice guidance transmitter to a PB dial signal receiver by means of a voice guidance end signal. CONSTITUTION:An announce mountain(ANM) 6, after the completion of a voice guidance, supplies magnetism to an ANM end signal terminal 62 for a prescribed time to allow a relay GE in a talky trunk 5 to operate for a prescribed time. With the relay GE operating, information-transmission by means of the voice guidance end signal is achieved through a PCM multiplex converter, 4 the path (3) of a time division net work(TDNW), and a supervision signal receiver (SSR), and thus a relay line processor 7 detects the end signal. The detected end signal is information-transmitted to a call controlling and processing equipment (CNP) 8, the CNP releases the path (1) of the TDNW to connect a PB dial subscriber 1 with a PBR 11 through a local exchange 2 and the path (4) of the TDNW 3. On the other hand, the CNP 8 transmits an ANM-starting/ stopping control information to the TSP 7.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a PB dial signal reception system in a common control long-distance automatic switchboard, and particularly relates to a PB dial signal receiving system in a common control long-distance automatic switchboard, and in particular, to The present invention relates to a PB dial signal receiving method for receiving an FB dial signal.

[Conventional technology]

Conventionally, this type of PB dial signal reception method has been used to connect a voice guidance sending device and a PB dialing terminal to a PB calling terminal.
The first PB dial signal that is set on both dial receiving devices and sent from the PB transmitting terminal after the end of voice guidance.
When the digits are received by the PB dial signal receiving device, the PB
In this method, the communication path between the calling terminal and the voice guidance sending device is cut off, and then the PB dialing signal receiving device receives the PB dialing signal from the PB calling terminal.

[Problem that the invention seeks to solve]

However, in the above-mentioned PB dial signal reception method, the call path with the PB calling terminal is connected to the voice guidance sending device and the P.B.
Because it is set in both B dial signal receiving devices, there is a problem that the guidance signal from the voice guidance sending device goes around to the PB dial signal receiving device, causing erroneous identification of the PB dial signal receiving device. However, there is a problem in that it is necessary to provide a filter to prevent erroneous identification due to the above-mentioned wraparound.

An object of the present invention is to solve the above problems.j7.
The call path with the PB calling terminal is set only with the voice guidance sending device, and after the end of the voice guidance to the calling terminal, the voice guidance sending device sends a voice guidance end signal.
By switching the call bus with the 9PB calling terminal from the voice guidance sending device to the PB dial signal receiving device,
An object of the present invention is to provide a PB dial signal receiving system that prevents a voice guidance sending device from interfering with a PB dial signal receiving device in a call path.

[Means for solving problems]

The PB dial signal receiving method of the present invention includes a PB dial signal receiving means for receiving a PB dial signal from a calling terminal, a voice guidance notifying means having a function of transmitting a voice guidance end signal, and a voice guidance from the voice guidance notifying means. and a switching means for detecting the end signal and switching the call path from the voice guidance notification means to the PB dial signal receiving means.

〔Example〕

Next, one embodiment of the present invention will be explained with reference to the drawings.

Referring to the figure, one embodiment of the present invention is applied to a PB dial signal reception method in which a digital toll switchboard receives the destination telephone number and password from a PB dial subscriber.

When PB dial subscriber (81JB) 1 makes a call and dials a specific number, it is connected to 5UB1 using a conventionally known connection method.
is the local exchange (LS) 2, the path of the digital toll exchange's time-division network (TDNW) 3, PCM
Multi-purpose converter (PCMMUX) 4, talkie trunk (
TKT) 5 and an audio terminal 61 of an announcement machine (ANM) 6.

The trunk line processing device (TSr) 7 is a call control processing device (GNP).
) The supervisory signal transmitter (8SS) 9 is controlled by the ANM drive control information of 8 and 8, and the relay ST is operated in the path of 8889, TDNW3 path 2, PCMMUX4, and relay 8T51 in TKT5. This make operation of the contact st of the relay ST supplies earth air to the pANM activation terminal 63 and activates the ANM6. When ANM6 is started,
For example, please dial the phone number and PIN number of the other party.”
The audio guidance is sent to the ANM audio terminal 61 from the above 8UB.
The notification is sent to 5UB1 via the route with 1.

When the audio guidance ends, the ANM 6 supplies earth to the ANM end signal terminal 62 for a certain period of time as a voice guidance end signal to operate the relay GE in the TKT 5 for a certain period of time. When the relay GE operates, the contact ge operates to make, and the voice guidance end signal is transferred to 88R10 through the path ■ of PCMMUX4゜TDNW3 and the supervisory signal receiver (881(+)10), and the voice guidance end signal is transmitted at TSr7. The voice guidance end signal detected by TSr7 is information transferred to GNP8, and CNPs
TI) NW3 bus due to voice guidance end signal
5UB1 and P13 dial signal receiver (PB
几) 11 via local exchange 2 and TDNW 3 bus ■ route.

On the other hand, GNP8 transfers ANM activation/stop control information to TSr7. When TSr7 receives the ANM activation/stop control information, it controls 8889, restores the relay 8T that was operating in the path of relay 8T in 5SS9, TDNW3 path (2), PCMMUX4, and TKT5, and stops the activation of ANM6. 5UB1 and PBRII are 'l'DNW3
When you are connected via the bus ■, you will receive the phone number and PIN of the other party dialed from 5UBI using PBRIIK.

〔Effect of the invention〕

As explained above, according to the PB dial signal reception method of the present invention, the call path with the FB calling terminal is set only with the voice guidance sending device, and after the voice guidance of the calling terminal ends, the communication path with the voice guidance sending device is set. By switching the call path with the 9PB calling terminal from the voice guidance sending device to the PB dial signal receiving device in response to the voice guidance end signal, the communication path from the voice guidance sending device to the PB dial signal receiving device is switched. This has the effect that the PB dial signal receiving device can be constructed economically.

[Brief explanation of drawings]

The figure is a relay system diagram showing an embodiment in which the PB dial signal reception system of the present invention is applied to a digital toll switchboard.

Claims (1)

[Scope of Claims] A toll automatic switching system that receives a PB dial signal from a calling terminal, comprising: PB dialing signal receiving means for receiving a PB dialing signal from the calling terminal, and a function of sending a voice guidance end signal. a voice guidance notifying means; detecting a voice guidance end signal from the voice guidance notifying means and transmitting a call path from the voice guidance notifying means to the voice guidance notifying means;
A PB dial signal receiving method, comprising: switching means for switching to a B dial signal receiving means, and switching a call path with a calling terminal from the voice guidance notification means to the PB dial signal receiving means in response to a voice guidance end signal.