Group-calls in a multi-channel access communication system

摘要

A method of calling a terminal of a multi-channel access communication system having a plurality of terminals (4-1, 4-2) connected to communication channels. The plurality of terminals are classified into a plurality of groups each including at least one terminal. When a group calls another group, it is checked by referring to a management table (Figs. 1A & 1B) if there is any terminal in communications in the called group. If there is a terminal in communications, the call is invalidated. <IMAGE>