H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 29/12 (2006.01) H04L 12/24 (2006.01) H04L 12/66 (2006.01) H04M 3/00 (2006.01) H04M 3/22 (2006.01) H04M 11/00 (2006.01) H04Q 3/58 (2006.01)
Patent
CA 2497502
Protocol control devices each have a database for storing application information concerning each of a number of IP (Internet Protocol) terminals controlled by the protocol control device. A dedicated maintenance terminal has a database for temporarily storing application information possessed by each protocol control device. An IP-capable PBX receives the application information of a designated IP terminal from the relevant protocol control device in response to a back-up command from the dedicated maintenance terminal. The dedicated maintenance terminal receives this application information and saves it temporarily for back-up purposes in a database.
Corporation Nec
G. Ronald Bell & Associates
Nec Infrontia Corporation
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