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Alexander2014-09-09 12:42:26
SIP
Alexander, 2014-09-09 12:42:26

Firmware for cisco 6921 phone?

Hello colleagues! Tell me if anyone has instructions for flashing the Cisco 6921 phone under SIP and back to the original one.

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3vi1_0n3, 2014-09-09
@3vi1_0n3

There are instructions on the official site .

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