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Cisco 7940 Phones

crvttvpr
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.

1 REPLY
Knapovsky
Occasional Advisor

Re: Cisco 7940 Phones

Hi,

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

./miro

3Com Czech Republic
3Com Czech Republic