JPH02237352A - Origination connection signal system for exchange - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to outgoing connection signaling in exchanges.

[Conventional technology]

As shown in the signal sequence diagram in Figure 2, the conventional switching system's outgoing connection signal system receives off-off and on-tuk signals 2 in response to a call 1 from a calling subscriber, performs call detection 3, and sends out a dial tone 4. I do. The calling subscriber hears the dial tone and dials 5.
As a result, the called subscriber number 6 is sent. When the exchange receives the called subscriber number 6, it analyzes it, enters a calling operation, confirms that the called subscriber is free, and sends out a calling signal 7.

At the same time, a ring tone is sent out 14 to the originating subscriber.

The called subscriber responds by sending an off-hook signal]0. Upon receiving the off-hook signal 10, the exchange detects a response 11, sets up a communication path 12, starts billing, and sends a rehearsing signal 13 to the calling subscriber. Thereafter, the originating subscriber and the terminating subscriber enter into a conversation state.

[Invention or problem to be solved]

The above-described conventional outgoing connection signaling system of the exchange only transmits a ringing tone to the calling subscriber when the called subscriber rings. For this reason, in the services that have become popular in recent years, in which information is transmitted from the subscriber line to the customer using the automatic calling function of the terminal equipment, the exchange side receives the incoming subscriber number from the terminal equipment for some reason. Even if a call is received by mistake and the call is sent to the wrong destination subscriber, there is no way to discover it other than a notification from the called subscriber, and the calling subscriber has no control over the confidentiality of the communication information. The problem is that it is lost.

An object of the present invention is to transmit the called subscriber's number to the calling subscriber in the same format as the signal format at the time of the call when sending out a paging signal to the called subscriber. The purpose of the present invention is to provide an outgoing connection signal system for an exchange that allows equipment to confirm the called subscriber number sent by itself.

[Means to solve the problem]

In the outgoing connection signal system of the exchange of the present invention, the exchange has means for receiving and storing the called subscriber number dialed by the calling subscriber, and when transmitting a paging signal to the called subscriber corresponding to the called subscriber number. and means for transmitting the subscriber number to the calling subscriber in the same format as the signal format used at the time of the call.

〔Example〕

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

FIG. 1 is a signal sequence diagram of one embodiment of the present invention.

The exchange receives an off-hook signal 2 due to a call 1 from a calling subscriber, performs a call detection 3, and sends out a dial tone 4. The calling subscriber hears the dial tone and dials 5 to receive the called subscriber number 6.
Send out. When the exchange receives the called subscriber number 6,
After analysis, the system enters a calling operation, confirms that the called subscriber is free, and sends out a calling signal (7). At the same time, to the calling subscriber,
A confirmation called subscriber number 8 having the same signal format and the same number as the previously received called subscriber number 6 is sent. The originating subscriber side can perform number verification 15 as necessary to confirm whether the dial signal sent by the subscriber has been correctly transmitted.

The subsequent operation is the same as that of a conventional exchange and has already been explained, so a description thereof will be omitted.

〔Effect of the invention〕

As explained above, the present invention transmits the called subscriber number to the calling subscriber in the same format as the signal format used when making the call, when sending a paging signal to the called subscriber. This has the effect of making it possible for the installed terminal equipment to confirm the called subscriber number sent by itself.

[Brief explanation of drawings]

FIG. 1 is a signal sequence diagram of an embodiment of the present invention, and FIG. 2 is a signal sequence diagram of a conventional exchange system for outgoing connection signaling. 1...Call origination, 2,10...Off-hook signal, 3...Call detection, 4...Dial tone transmission, 5...・Dial, 6... Incoming subscriber number, 7... Calling signal transmission, 8...
・Incoming subscriber number for confirmation, 9...Response, 11・
...Response detection, 12...Call route setting, 13
...Reverse signal, 14...Ring tone transmission, 15...Number verification. Agent Patent Attorney Susumu Uchihara

Claims (1)

[Claims] The exchange has means for receiving and storing the called subscriber number dialed by the calling subscriber, and transmitting the called subscriber number to the calling subscriber when sending a paging signal to the called subscriber corresponding to the called subscriber number. 1. An outgoing connection signal system for an exchange, characterized in that it has means for transmitting a signal in the same format as the current signal format.