Call waiting signal arrangement

Details Call waiting signal arrangement Call waiting signal arrangement

1979-05-02

1981-11-03

Brown, Thomas W.

179 18HB, H04M 302, H04M 342

Patent

active

042987741

ABSTRACT:
A telephone call waiting signal system as used in a processor controlled exchange, wherein reuse is made of an existing ringing supply bus and the signal relay in each subscriber's line equipment for applying a call waiting signal to the subscriber's line. This is made possible by the multiplexing of the two signals and selectively operating the signal relay at the line equipment.

REFERENCES:
patent: 3050592 (1962-08-01), Burgener
patent: 4081613 (1978-03-01), Reines et al.
patent: 4140882 (1979-02-01), Regan et al.
patent: 4145577 (1979-03-01), Kojima et al.

Affiliated with

Also associated with

Rating

Call waiting signal arrangement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Call waiting signal arrangement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Call waiting signal arrangement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1065966