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Posted By: rapaczs InterTel IP PhonePlus 770.4500 PoE - 04/01/16 04:04 PM
Trying to power InterTel IP PhonePlus 770.4550 using PoE switch, but switch not detecting phone as a PoE device. Phone not powering up. Using a HP 1420-24G-PoE+ (124W) Switch
(JH019A). Any Ideas?
Posted By: dpmcintyre Re: InterTel IP PhonePlus 770.4500 PoE - 04/16/16 05:59 AM
I assume your subject is what you really have, as I don't know of a 770.4550 phone set.

The 770.4500 was not PoE compatible, it was pre-standards and used a different voltage and no protocol. The 770.4600 introduced PoE compatibility.
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