Subscribers telephone hold circuit with automatic disconnect

Details Subscribers telephone hold circuit with automatic disconnect Subscribers telephone hold circuit with automatic disconnect

1983-08-25

1985-07-16

Rubinson, Gene Z.

179 99H, H04M 100

Patent

active

045298432

ABSTRACT:
A hold circuit for use with a single line telephone which may or may not be equipped with extension instruments. The circuitry in response to the momentary operation of a manual switch actuates a siliconcontrolled rectifier to place a resistive load across the telephone line thus allowing the subscriber at the basic telephone instrument to go "on hook". Subsequent removal of the basic instrument handset from the hookswitch or an extension phone going "OFF HOOK" will cause the resistive load to be removed. Also included is a hold release circuit which automatically disconnects the hold circuit after a predetermined period of time.

REFERENCES:
patent: 3870831 (1975-03-01), McCarley
patent: 4440981 (1984-04-01), Grantland et al.

Affiliated with

Also associated with

Rating

Subscribers telephone hold circuit with automatic disconnect does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Subscribers telephone hold circuit with automatic disconnect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subscribers telephone hold circuit with automatic disconnect will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1737513