Key telephone system with enhanced connectivity

Details Key telephone system with enhanced connectivity Key telephone system with enhanced connectivity

1991-03-19

1993-04-20

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

379156, H04J 312

Patent

active

052048616

ABSTRACT:
A key telephone system which is operably responsive to digitally encoded service orders and instructions stored in a ROM of a switching facility in a local ISDN telephone exchange achieves enhanced connectivity by using a dedicated line that provides a digital signaling and supervision communications path which is exclusively an ISDN basic rate 0B+D teleservice channel. A key switch unit of the system is connected to the exchange by POTS lines to provide conventional voice analog services to a plurality of its subscriber stations. Interfacing the key switch unit with the teleservice channel, a personal computer translates data downloaded from the switching facility into instructions recognized by the unit and enables individual subscriber stations with enhanced service connectivity features while displaying such features on a display unit of each station.

REFERENCES:
patent: 4873682 (1989-10-01), Irwin et al.
patent: 4958369 (1990-09-01), Tsuchida
patent: 5003580 (1991-03-01), Duong et al.
patent: 5014269 (1991-05-01), Picandet

Affiliated with

Also associated with

Rating

Key telephone system with enhanced connectivity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Key telephone system with enhanced connectivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key telephone system with enhanced connectivity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1530810