Title:
【発明の名称】パーソナル・コンピュータ用のプログラム可能型通信交換処理装置
Document Type and Number:
Japanese Patent JP3067803
Kind Code:
B2
Abstract:
A user-programmable telephone switch which resides within a commercially available personal computer. The switch is controllable by either the personal computer's microprocessor or a separate, external host connected to an interface provided within the switch. The switch includes a CPU/matrix card that contains a time slot interchange and a CPU running under a real time operating system. The CPU/matrix card controls the overall operation of the switch in accordance with messages received from the operative host. In general, those tasks or functions which must be performed in real time are the responsibility of the switch, as opposed to the internal or external host. Within the switch, certain tasks or functions may be delegated by the CPU/matrix card to intelligent line cards which contain their own microprocessors having substantial call processing capability.
Inventors:
Madonna, Robert Pea
Battelle, Robert Jay
Hibbert, Mark Pea
Battelle, Robert Jay
Hibbert, Mark Pea
Application Number:
JP50909294A
Publication Date:
July 24, 2000
Filing Date:
September 15, 1993
Export Citation:
Assignee:
Excel Switching Corporation
International Classes:
H04Q3/545; H04Q3/62; G06F13/00; H04Q11/04; (IPC1-7): H04Q3/545; G06F13/00
Attorney, Agent or Firm:
Kazuo Shamoto (4 outside)