Keyless and indicatorless local telephone switching system

Details Keyless and indicatorless local telephone switching system Keyless and indicatorless local telephone switching system

H - Electricity

04

M

344/13

H04M 3/42 (2006.01) H04M 9/00 (2006.01)

Patent

CA 1146245

KEYLESS AND INDICATORLESS LOCAL TELEPHONE SWITCHING SYSTEM ABSTRACT OF THE DISCLOSURE A telephone switching system comprising a control system, means for connecting a plurality of lines adapted to be connected to subscriber's sets to the control system, means for connecting a plurality of trunks to the control system, a junctor system for interconnecting lines and trunks under control of the control system, a voice announcement system connected to the control system, means for connecting the voice announcement system to the junctor system upon receipt by the control system of a command signal from a line connected to a subscriber's set, and for enabling the generation of a predetermined announcement for application to said line.

352147

Affiliated with

Also associated with

Rating

Keyless and indicatorless local telephone switching system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-583289