Patent ID: 6788778
Filing Date: 2004-09-07
Classification: H04M,H04Q

Abstract:
A private branch exchange (PBX) system comprising:(a) an extension telephone; and (b) a PBX including: (b-1) a group number memory for storing an extension number of said extension telephone and a group number corresponding to the extension number; (b-2) a group number detector for detecting the group number corresponding to a call-in signal; (b-3) a request-signal generator for sending an arrival-request signal to an extension telephone having an extension number corresponding to the group number detected, (c) a memory for storing text data corresponding to the group member; and (d) a transmitter for transmitting information saved in said group number memory to a telephone, which has sent the call signal, when said group number detector detects the group number, wherein when said extension telephone receives the request signal, said extension telephone indicates the receipt of the request signal.