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Cisco 7940 Phones

Occasional Contributor

Cisco 7940 Phones

I have a #com 4500G PWR 50 port switch and when I plug in my Cisco 7940 IP phones they get no power. I have tried different 7940 phone with no luck. I plugged in a polycom phone and got power. Any ideas as to what I need to do to correct this would be appreciated.

Occasional Advisor

Re: Cisco 7940 Phones


Use the "poe legacy enable" command to enable the PD compatibility detection function. This is due to Cisco nonstandard PoE capability in their phones.

best regards


3Com Czech Republic
3Com Czech Republic