H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 9/00 (2006.01) H04M 1/00 (2006.01) H04M 1/738 (2006.01) H04M 1/74 (2006.01)
Patent
CA 2461910
A high availability telephone instrument, comprising a primary communications link interface connected to a primary communications link; at least one backup communications link interface connected to at least one backup communications link; and a controller connected to for detecting failure of the primary communications link and in response selecting the at least one backup communications link for providing voice communication between the telephone instrument and the backup communications link.
Davies Jim N.
Mitel Networks Corporation
Perry + Currier
LandOfFree
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