JPH03270362A - Caller number display system - Google Patents

Abstract

PURPOSE:To display a caller number to a called party before the reply of a called party by receiving the caller number from the caller when a call comes to a subscriber required for displaying the caller number, sending the result to a called party number reception display means and sending the call signal. CONSTITUTION:A caller 13 dials one of telephone numbers of a called party and when a central controller 6 detects from the called party number it that the number is an object subscriber representing a caller number by referencing a storage device 7, the transmission of the caller number is requested to the caller station and the caller number is received by an MFC receiver 8. Then the central controller 6 stores the number corresponding to the called party 1, starts the adaptor 2 immediately and sends the caller number to the adaptor 2 by using the MFC signal, the adaptor 2 displays the received caller number onto a display section and sends the call signal to the called party 1. Thus, the caller number is displayed to the called party 1 before the reply of the called party 1 by utilizing an existing telephone set, exchange and network.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a calling party number display system for displaying a calling party's telephone number on a called terminal connected to a switching system.

[Conventional technology]

Conventionally, this type of caller ID display is called ISD N (
Int,egraLed 5services Di
In digital NeLwork: integrated service digital network, the calling side sends the calling party's number information to the information channel of the 15DN basic interface, and the receiving side extracts this information.j - 15DN terminal corresponding to the called party A configuration has been studied and developed in which the calling party number is displayed on the display before the called party answers.

[Problem to be solved by the invention]

- The conventional caller ID display described above requires the installation of ISDN terminals and ISDN exchanges, as well as the construction of a 15DN network, which requires a large amount of capital investment in areas without these facilities. do.

SUMMARY OF THE INVENTION An object of the present invention is to provide a calling party ID display method that can display the calling party's number to the called party before the called party answers, using existing telephones, exchanges, and networks. be.

[Means to solve the problem]

The calling party number display system of the present invention is a switching system in which signals are transmitted and received between a calling station and a terminating station in accordance with the MFC signaling method, and in which information on a called subscriber whose calling party number is to be displayed is transmitted to the terminating station. Register in advance in the storage means of
When it is detected that a call has arrived at the target called subscriber by referring to the storage means, the calling station is requested to transmit a calling party number, the receiving means receives the calling party number, and the storage means corresponds to the target called subscriber, and activates a number reception display means provided between the called terminal and the called station to transmit the calling party number and send a paging signal to the terminal. This is the configuration for sending out the data.

〔Example〕

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

FIG. 1 is a tR diagram of an exchange system for explaining one embodiment of the present invention. In FIG. 1, a calling station is connected to a terminating station via a general switching network 10, and the terminating station is connected to a subscriber's premises via a subscriber line 3. The receiving station includes a communication path switch 5 that constitutes the communication path, a subscriber circuit 4 and a trunk 9 connected to the communication path switch 5, and an MFC that receives the calling number from the origination station and transmits it to the subscriber's premises. The receiver 8 and the MFC receiver 8 register in advance the information of the target called subscriber whose calling party number is to be displayed.
The central control unit 6 includes a storage device 7 for storing the calling party number received at the caller number and a central controller 6. The originating station has the same configuration as the terminating station, but a trunk 11 and a call path switch 12 connected to the terminating station are shown.
A caller 13 is accommodated in the station 2. At the subscriber's premises, an adapter 2 for receiving and displaying the calling party number and transmitting a ringing signal is provided, and is connected to the called party 1.

FIG. 2 is a sequence chart showing the flow of signals in one embodiment of the present invention.

The operation will be explained below using FIGS. 1 and 2. Note that MFC (Muiti-fr) is used between the originating station and the terminating station.
It is assumed that the calling party 1 is registered in advance as a subscriber whose calling party number is to be displayed by a well-known method using a special number or the like. First, when the calling party 13 dials the telephone number of the called party 1, the calling station selects the outgoing line and calls the trunk 11. The receiving station is activated through the switching network 10. Subsequently, as shown in FIG. 2, the called party numbers A to F are sequentially received by the MFC receiver 8 through the trunk 91 channel switch according to the MFC signaling system and transmitted to the central controller 6. When the central controller 6 refers to the storage device 7 and detects that the called party number is a target subscriber whose calling party number should be displayed, it requests the calling station to send the calling party number. The A-5 signal indicating the called party number is sent through the same route as when the called party number is received, and the calling party number AA to AF is sent.
is received by the MFC receiver 8. And central control bag W6
are associated with the called party 1 and stored in the storage device W7, and then the adapter 2 is immediately activated via the subscriber circuit 4, and the stored calling party numbers AA to AF are sent from the MFC receiver 8. It is sent to the adapter 2 via b of the communication path switch 5 using an MFC signal as shown in FIG. The adapter 2 displays the received calling party numbers AA to AF on the display section and sends a calling signal to the called party 1. When the called party 1 answers, the communication path switch 5 C is established, and the calling party 13 and the called party 1 can start talking. Therefore, the called party 1 can answer after confirming the calling number displayed on the display, and can be used in cases where it is necessary to screen and answer incoming calls, or when making an emergency call. It can also be applied to caller identification for malicious calls, such as when a person forgets to indicate his or her identity.

In this embodiment, the calling party numbers AA to AF are sent to the adapter 2 using the MFC signaling system, but it may be configured to send them using the MF signaling system that does not use confirmation signals such as As2 transmission.

〔Effect of the invention〕

As explained below, the present invention is a switching system in which signals are transmitted and received between a calling station and a receiving station according to the MFC signaling method, when it is detected that a call has arrived at a subscriber who requires display of a calling party number. Sometimes, a calling party number transmission request signal using the MFC signaling method is sent to the calling party, the calling party number is received and stored in a storage means, and a number reception display is provided between the terminal of the receiving party and the receiving station. Since the system is configured to transmit the calling party number to the device and send a paging signal to the corresponding terminal, it is possible to make a call to the called party before the called party answers, using existing telephones, exchanges, and networks. ID number can be displayed.

Claims (1)

[Claims] In a switching system that transmits and receives signals between a calling station and a terminating station according to the MFC signaling method, information on a called subscriber whose calling party number is to be displayed is registered in advance in a storage means of the terminating station. , when detecting that a call has arrived at the target called subscriber by referring to the storage means, requests the calling station to transmit the calling party number, receives the calling party number by the receiving means, and stores the caller number. The means corresponds to the target called subscriber, and the number reception display means provided between the called terminal and the called station is activated to transmit the calling party number and send a paging signal to the terminal. A calling party number display method characterized by having a caller number sent to.