Line access control apparatus and line access system

Details Line access control apparatus and line access system Line access control apparatus and line access system

H - Electricity

04

M

H04M 3/487 (2006.01) H04L 12/12 (2006.01) H04M 3/493 (2006.01) H04M 11/06 (2006.01) H04Q 3/64 (2006.01)

Patent

CA 2364597

A line control apparatus includes an incoming call detection circuit, announcement circuit, PB receiver, and switch. The incoming call detection circuit detects an incoming call made to an interactive voice response apparatus or network. When the incoming call detection circuit detects the incoming call, the announcement circuit requests, by voice, sending of a specific signal of a caller. The PB receiver discriminates whether the specific signal is received from the caller in response to the request from the announcement circuit. The switch connects the incoming call to the interactive voice response apparatus or network in accordance with a discrimination result from the PB receiver. A line access system is also disclosed.

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