[Asterisk-biz] PoE for Cisco Phones

[Adi Linden]

> I started out with (and documented) the Cisco POE cable on the Wiki. It
> should work with any "dumb" POE injector. I.E. something that doesn't care
> about 802.3af and just injects 48dc down the line no matter what.

This will work for a one off hobbyist type application.

> I've since deployed the PowerDsine POE injector with their Cisco adapter
> cables. It understands both 802.3af as well as the CDP power protocol
> (with the right adapter cables).

While this is less expensive then a Cisco powered switch, it is still way
too expensive if we're talking 4 phones in a building.

Adi