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CP-7811 not registering

MARK ANDREWS
Level 1
Level 1

‎09-11-2018 03:48 AM - edited ‎03-17-2019 01:27 PM

We have just purchased some CP-7811-K9 phones but they are not registering.  I have set up the phone profile and added a DN but it won't register.  I've installed the latest phone software (cmterm-78xx.12-1-1SR-4.k3.cop).  The screes just shows the message Registration in progress and occasionally shows "Error Mismatch"  When I look at the Phone Information shows the Active Load: sip78xx.11-5-1SR1-1 and the message Last Upgrade: Upgrade Failed.

Any advice would be appreciated.

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Chris Deren
Hall of Fame
Hall of Fame

‎09-11-2018 05:28 AM

What system are you attempting to register these phones to?  Do you have proper TFTP option in your DHCP scope? Did you try factory resetting the phones?

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