JPH01170255A - Transmission system for called party reply signal - Google Patents

Abstract

PURPOSE:To allow a caller terminal set to confirm the incoming reply clearly by sending an incoming call reply signal from a relay exchange connected to the subscriber exchange of a telephone exchange network of other system accommodating a caller terminal set to the caller terminal set in a voice in-band signal. CONSTITUTION:In the reception of a reply signal by hook-off of a called party 6, the subscriber exchange 5 of X company transmits the reply of the incoming terminal to a relay exchange 4 of Y company in terms of an inter-station signal and the relay exchange 4 of Y company transmits the reply of the incoming terminal to a relay exchange 3 of Y company in terms of an inter-station signal. The relay exchange 3 of Y company transmits the reply of the incoming terminal to the telephone network of Y company in terms of an inter-station signal. The relay exchange 3 of Y company transmits the reply signal and the called party reply signal to the outgoing terminal in terms of an inter-station signal. The outgoing terminal set 1 does not accept the reply signal from the subscriber exchange 2 of X company but can confirm the reply of the incoming terminal 6 by the incoming reply signal.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for transmitting a response signal when performing telephone communication via a plurality of telephone service companies (different telephone exchanges 11i1), and in particular, to The present invention relates to a response signal transmission method suitable for a case where a response signal is not transmitted from a subscriber exchange accommodating a subscriber exchange.

(Prior Art) In recent years, telephone networks have been adopted in which, in addition to the conventional public telephone network, a relay switching network of another company other than the public telephone network can be used.

When making a call using such a public telephone line, the transmission method of the response signal sent back from the called party to the calling party is classified as follows.

(1) Calls made using only a single telephone exchange network.

This method does not use any other telephone exchange network when making a call from a calling terminal through a local exchange, and not only through a local exchange but also through a relay exchange. The polarity reverses instantaneously toward the terminal.

(2) When using the telephone networks of multiple companies.

This case can be further classified into two.

■10 installations completed for subscribers by terminal companies.

(Abbreviation for Identification; subscriber information to that effect is registered in the data file of the subscriber exchange) Because the ID has already been registered in the subscriber exchange of the terminal company (1)
It is transmitted in the same way.

■The subscriber exchange of the terminal company receives the response signal from the called side, but does not perform polarity reversal for the calling side terminal because the ID is not registered.

(Problem to be solved by the invention) Therefore, in the above-mentioned telephone calls made by multiple companies cascaded,
There is a problem in that terminals for which ID construction has not yet been completed cannot receive a response signal when making a call, so the response of the called party cannot be ascertained. Furthermore, it was not possible to determine when to start charging.

An object of the present invention is to solve the above-mentioned drawbacks, and even when different telephone exchange networks are cascaded, it is possible to clearly confirm the incoming call response to the calling terminal, and to check the billing status on the calling terminal side. It is an object of the present invention to provide a called party response signal transmission system that allows the user to check the called party response signal.

(Means for Solving the Problems) In order to achieve the above object, the called party response signal transmission system according to the present invention is a called party response signal transmission system that returns a response signal via a different telephone switching network. A relay exchange connected to a subscriber exchange of another telephone exchange network that accommodates the originating terminal sends a response signal to the subscriber exchange, and also sends an incoming call response signal to the originating terminal using a voice band signal. It is configured to do so.

Furthermore, the configuration is such that billing information is also sent using the audio band signal.

(Example) Hereinafter, the present invention will be explained in more detail with reference to the drawings.

FIG. 1 is a relay system diagram showing an embodiment of a called party response signal transmission system according to the present invention. In this embodiment, ID work has not yet been completed for the originating terminal, and the subscriber exchange and the terminal are connected by Company X's telephone switching network, and the relay exchanges are connected by Company Y's switching network.

The subscriber exchange of company X and the relay exchange of company Y are connected by the company X switching network.

When the originating terminal 1 goes off-hook and sends out a selection signal to use the 7-company exchange network, the X company subscriber exchange 2 identifies this and connects to the Y company's relay exchange 3. The Y company's trunk exchange 3 transfers the selection signal to be connected to the X company subscriber exchange 5 on the receiving side to the Y company trunk exchange 4 via the switching network. X
The company subscriber exchange 5 identifies the receiving terminal accommodating terminal from the selection signal and sends out a paging signal.

When the receiving terminal 6 responds, a loop is formed and a response signal is sent back.

FIG. 2 is a diagram showing the flow of signals in the system of the present invention.

When the X company subscriber exchange 5 receives the response signal (2) from the called party's off-footer, it transmits a response to the called terminal to the Y company relay exchange 4 using the inter-office signal (2).

Based on the inter-office signal (2) obtained from the X-company telephone switching network, the Y-company relay exchange 4 transmits the response of the incoming terminal by the inter-office signal (2) to the Y-company relay exchange.

Company Y medium-phase switch 3 receives interoffice signals from Company Y relay switch 4■
Based on this, the response from the incoming terminal is transmitted to the telephone network of Company X by interoffice signal ■.

Company Y medium-phase exchange 3 transmits this response signal, and based on this inter-office signal, transmits an incoming response signal (2) to the originating terminal 1 using a signal within the voice band (0.3 to 3.4 KH2).

Start billing at the same time.

Although the originating terminal 1 does not receive a response signal from the X company's subscriber exchange, it can confirm that the terminating terminal has responded by the above-mentioned incoming call response signal (3).

Thereafter, the relay switchboard 3 of company Y transmits a charging signal for each frequency as charging information by a signal within the voice band (0.3 to 3.4 KH2) toward the calling terminal 1 via the telephone switching network of company X. Send out and ■.

An embodiment in which a billing signal is sent out as billing information after sending out the incoming call response signal (2) has been described above, but as another embodiment, immediately after sending out the incoming call response signal (2), the billing signal is sent out as billing information for a unit time of one degree.

It is also possible to have a configuration in which unit charge information is transmitted by a voice band signal, and the terminal side counts a clock based on the transmitted information and displays the ever-changing call charge.

(Effect of the invention) As described above, the present invention can be applied to a plurality of different electric currents.

When telephone communication is carried out via a telephone switching network, an incoming call response signal is sent back to the calling terminal using a voice band signal from a relay exchange connected to a subscriber exchange of another telephone switching network that accommodates the calling terminal. This has the effect that not only a calling terminal that receives a response as before, but also a terminal for which ID work has not yet been completed, can understand the response as an audio signal and clearly confirm the other party's response.

Furthermore, since billing information is sent from the relay exchange in the form of a voice band signal, the billing status of calls in the telephone exchange network between the relay exchanges can be grasped and displayed on the terminal.

Therefore, the present invention has the advantage that it can be effectively used for checking charges at terminals with billing devices or hotels.

Furthermore, the present invention is characterized in that the existing switching network can be used as is, and the present invention has the advantage that it can be implemented without affecting the existing switching network (the switching network on the subscriber exchange side). be. In such a case, it is only necessary to make some changes to the transit exchanges in the transit switching network.

[Brief explanation of the drawing]

FIG. 1 is a relay system diagram showing an embodiment of the called party response signal transmission system according to the present invention, and FIG. 2 is a diagram for explaining the sequence of the relay system of FIG. 1. 1... Calling terminal 2.5... Company X subscriber exchange 3.4... Company Y relay exchange 6... Receiving terminal Patent applicant Daini Denden Co., Ltd. Agent Patent attorney Hisashi Inoro

Claims (3)

[Claims] (1) In a called party response signal transmission system in which a response signal is returned via a different telephone exchange network, a relay exchange connected to a subscriber exchange of another telephone exchange network that accommodates the calling terminal is connected to the subscriber 1. A called party response signal transmission system, characterized in that it is configured to transmit a response signal to an exchange and also transmit an incoming call response signal to a calling terminal using a voice band signal. (2) In a called party response signal transmission system in which a response signal is returned via a different telephone exchange network, a relay exchange connected to a subscriber exchange of another telephone exchange network that accommodates the calling terminal is connected to the subscriber A called device characterized in that it is configured to transmit a response signal to an exchange, transmit an incoming call response signal to a calling terminal using an in-voice band signal, and then send billing information using an in-voice band signal. user response signal transmission method. (3) In a called party response signal transmission system in which a response signal is returned via a different telephone exchange network, a relay exchange connected to a subscriber exchange of another telephone exchange network that accommodates the calling terminal is connected to the subscriber A response signal is sent to the exchange, and an incoming call response signal is sent to the originating terminal using an in-voice band signal. Immediately after that, information on the unit time charge for one time is transmitted via an in-voice band signal, and the terminal side A called party response signal transmission method that calculates and displays a call charge by counting clocks based on information transmitted by a called party.