[cisco-voip] 3550 Inline power jumps

[pnowicki at neo.rr.com]

The IEEE standard on PoE is 15 Watts. What happens is when the phone 
plugs in, the switch allocates 15 Watts. Then when cdp kicks in, the 
phone and the switch communicate and the switch then knows that the 
phone actually only needs 6.3 Watts. So, it adjusts it power 
allocation accordingly. 
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Hi,
IP Phones connected to ports 13-24 on a Cat 3550-24 switch, sometimes start
drawing 15 volts of power, while those on ports 1-12 continue to consume the
normal 6.3 Volts. Any resolutions?
Thanks - Tennisman.
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