Universal measured service interface for step-by-step telephone

Details Universal measured service interface for step-by-step telephone Universal measured service interface for step-by-step telephone

1982-07-12

1984-04-03

Schreyer, Stafford D.

179 71R, 179 17A, 179 18FH, H04M 1506

Patent

active

044409788

ABSTRACT:
A universal measured service system for a central office exchange senses the condition of relays in the line equipment for each line as well as the conditions of the linefinders. The system associates the outgoing lines of each linefinder with the incoming line connected to the linefinder by identifying an incoming line placing a call that is connected to a linefinder in the exchange at about the same time that a specific linefinder has connected an incoming line to its outgoing line. Once an incoming line has been identified as being connected to an outgoing line of the linefinder, the number called through the incoming line can be determined by counting the dial pulses on the linefinder outgoing line. The system is also capable of accommodating 200-line linefinders arranged in subgroups by also sensing signals from the linefinder group relays identifying which subset of incoming lines is being accessed by the linefinders.

REFERENCES:
R. Cohen, J. B. Connell; Subscriber Billing System; Electrical Communication, vol. 55, No. 1, 1980, pp. 192-201.

Affiliated with

Also associated with

Rating

Universal measured service interface for step-by-step telephone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Universal measured service interface for step-by-step telephone , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Universal measured service interface for step-by-step telephone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-668518