H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
344/25
H04Q 11/04 (2006.01) H04J 3/02 (2006.01)
Patent
CA 1234615
ABSTRACT A processor controlled PBX system with central control and distributed group control using a processor per group. The PBX employs time division controlled speech transmission and data switching. Features of the system are programmable by the system maintenance personnel. The programmable features include the number of time slots or channels in use triggering a priority call control mode. The transfer of data between processors for monitoring may also be controlled along with the correction of data in system backup memory.
459337
Mackenzie Robert B.
Priamo Lawrence
Alcatel N.v.
Smart & Biggar
LandOfFree
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