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Joined: Jun 2005
Posts: 91
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Member
Joined: Jun 2005
Posts: 91 |
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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