Merle K Pieper

US Patent:

47303042, Mar 8, 1988

Filed:

Oct 2, 1985

Appl. No.:

6/783126

Inventors:

Susan A. Mezera - Naperville IL
Merle K. Pieper - Wheaton IL

Assignee:

American Telephone and Telegraph Company, AT&T Bell Laboratories - Murray Hill NJ

International Classification:

H04Q 1104

US Classification:

370 58

Abstract:

A time division switching system for providing telecommunications connections as defined by information stored in a plurality of control memories is disclosed. The switching system includes arrangements for transferring a new control program from a central control to a time-slot interchange unit controller associated with a time-slot interchange unit and connected line and trunk units. To generate a data base representing complete calls through the line and trunk units and the time-slot interchange unit, the time-slot interchange unit controller reads the information stored in the control memories, identifies complete telecommunications connections, and stores information defining such complete connections in a data base in a format usable by the new control program.