Method of operating cordless telephone system

Details Method of operating cordless telephone system Method of operating cordless telephone system

1991-09-23

1993-10-12

Kuntz, Curtis

Telephonic communications

Audio message storage, retrieval, or synthesis

379 58, 379 67, 379 88, 455 541, H04M 1100, H04M 164, H04B 100

Patent

active

052532879

ABSTRACT:
A method of operating a cordless telephone system includes the steps of: waiting an incoming call; automatically answering the incoming call and setting the system to a monitoring mode; continuing the monitoring mode as far as it is confirmed that there is a radio connection between a single portable terminal and a main terminal; detecting the termination of communications; and restoring the system to the waiting state in response to the termination of the communications. During a period of monitoring, switching noises are eliminated from monitoring voice because the portable terminals do not transmit data for maintaining the connection to the main terminal in turn.

REFERENCES:
patent: 3912875 (1975-10-01), Katz
patent: 4628152 (1986-12-01), Akerberg
patent: 4744101 (1988-05-01), Saegusa
patent: 4873713 (1989-10-01), Yamanouchi et al.
patent: 4881259 (1989-11-01), Scordato
patent: 5075894 (1991-12-01), Iwase et al.
patent: 5090051 (1992-02-01), Muppidi et al.
patent: 5140629 (1992-08-01), Lee

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