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Last reply by 02-05-2019 Unsolved
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2 Bronze
2 Bronze

N1548P Poe not working with old Cisco IP Phones

Please help, because I'm running out of ideas.
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From what I can tell the pinout for PoE is different on the 79xx from the 3905, so it may not be compatible with the pins that are providing power.


DELL-Josh Cr
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Thanks for the answer.

I forget to mention that all the problems happened after a reboot. Before that, both types of phones was working OK.

I think it's a PoE controller problem. It's weird that all ports are in "Test-Fail" status, even when all 3905 phone are working OK.

What do you think about it?.... Do you have any other ideas?


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