IP Telephony and Phones

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 Hello, collaboration professionals!  Please, answer to my question. Where is 3PCC firmware for 7800 and 8800 series phones. Can I change firmware for existing 7800/8800 phones with CUCM firmware to 3PCC , and if I can, how to do it? Thank you.

balyu2015 by Level 1
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Has anybody encountered an issue where your 88XX (specifically 8851) phones have randomly exhibited off-hook/on-hook tendencies?  Over the past year we have had upwards of 250+ phones randomly go off-hook then on-hook in less than a second, sometimes...

                   I have a Cisco CP-8831 conference phone and CUCM 9.1. I have added and applied the firmware and related files to CUCM cluster and the system does recognize 8831. I add the phone and the phone is receiving all needed TFTP, CTL infor...