03-11-2019 06:46 AM
Dear,
I have CP-7821-3PCC-K9 with sip78xx.10-4-1OD-164-3PCC firmware and CUCM 11.5.
I want to Upgrade 3PPC to Enterprise Firmware, that i can register it to CUCM.
the question that i have here is that:
1)Is the upgrade applicable or supported? if not please link the document that cisco tell that.
2)as I read online there are some ways to do that but when i follow the instruction i get 405 Method Not Allowed on 3PCC ip phone web address.(and don't let me to do anything else)
I appreciate if someone could help me to solve this problem.
Thanks.
03-11-2019 08:00 AM
That option is no longer available, it was available when the 3PCC lines were introduced, but it has since been removed.
You cannot go from 3PCC to enterprise anymore, you will need to get yourself a device with enterprise FW is you want to register it to CUCM.
03-11-2019 10:54 PM - edited 03-11-2019 11:18 PM
Conversion from Enterprise firmware to 3PCC/MPCC (or vice versa) is not allowed.
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