System for setting registration mode for key telephone set

Details System for setting registration mode for key telephone set System for setting registration mode for key telephone set

1987-10-28

1989-04-18

Ng, Jin F.

Telephonic communications

Multi-line or key substation system with selective switching...

379165, H04M 100

Patent

active

048233773

ABSTRACT:
A key telephone system includes a main unit, a DSS interface, and a detector. The main unit includes a speech path switch, a plurality of call processing interfaces, an operating data memory, operation mode setting switches, and a controller for controlling the speech path switch by referring to the operating data memory when data transmission is periodically performed between the plurality of key telephone sets through the call processing interface in the call processing mode, and for updating contents of the operating data memory according to operating data externally input in the data setting mode. The DSS interface connects at least one DSS console. The detector detects that first normal data received, after a periodic data transmission with the DSS console through the DSS interface is an abnormal transmission for a predetermined period of time, is data unique to the key telephone set. The controller controls the operation mode setting switches in association with an output from the detector to change the call processing mode into the data setting mode.

REFERENCES:
patent: 4032724 (1977-06-01), Matheny
patent: 4491693 (1985-01-01), Sano et al.
patent: 4559417 (1985-12-01), Komuro et al.
patent: 4602132 (1986-07-01), Nagatomi et al.

Affiliated with

Also associated with

Rating

System for setting registration mode for key telephone set does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for setting registration mode for key telephone set, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for setting registration mode for key telephone set will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2400962