Response delay system of an ISDN terminal in a point to multipoint configuration

摘要

An ISDN response system comprises a plurality of terminals, each of which contains a SETUP message to an incoming all. Each terminal has the same subscriber number with the same attribute values and responds to a first SETUP message received by it which has the aforementioned subscriber number and attribute values to transmit a CONN message to the termination so that communication is established between the network and the particular terminal, the CONN message of which is first received at the termination. The timing of the transmission of the CONN message sent by the particular terminal is delayed when a subsequent SETUP message is received having the same subscriber number and attribute values.