Digital private branch exchange and method of manufacturing same

Details Digital private branch exchange and method of manufacturing same Digital private branch exchange and method of manufacturing same

1989-04-20

1991-02-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

3701101, H04J 312

Patent

active

049950339

ABSTRACT:
A digital private branch exchange including a digital trunk which in turn includes a connection request reject channel and a method of controlling the exchange. If there is a connection request to the reject channel, an audible tone signal indicative of the rejection of the connection request is read from a memory provided in the digital trunk, and sent to the extension telephone set which has made the connection request.

REFERENCES:
patent: 4439639 (1984-03-01), Munter

Affiliated with

Also associated with

Rating

Digital private branch exchange and method of manufacturing same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital private branch exchange and method of manufacturing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital private branch exchange and method of manufacturing same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1149902