[Asterisk-Users] Netgear FS116P and Cisco 79XX phones

[Pavel Jezek]

Hi Joseph,
I think, that old ci$co phones using not only different pins, but also 
different power detection,
so, you are probably out of luck, if you trying to use old ci$co phones 
with 802.3af (only) compliant power device,
seems, that powerdsine midspans provide power detection compatible with 
ci$co pre-standard phones....
look at 7905/7912 (on powerdsine web site) that even not require poe 
polarity dongle and works with powerdsine, even that this phone are not 
802.3af compliant
if you use 802.3af switches, best way is to stay away completely from 
not compatible devices, or if you "must" use old ci$co phones, you must 
buy quite expensive ci$co power switches ... ;-)
PJ



Joseph Rothstein wrote:
> I am hoping that someone has had better luck with this than I have.
>
> I would like to connect Cisco 7940s and 7960s to the Netgear FS116P, and
> take advantage of its POE. I know that the Cisco phones use Cisco's
> "pre-standard" POE implementation, but as I understand it the difference is
> really only two pins.
>
> I bought a bunch of PowerDsine inline power adapters which supposedly change
> the right pins so that standard POE will work with Cisco POE, but it does
> not (other POE devces work fine on the Netgear such as SNOMs), at least not
> on the Netgear. I have tried several different settings on the phone as
> well, changing the media type, but the FS116P just does not recognise that
> there is a POE devices attached to it.
>
> If anyone has any experience gettings these phones to work on this switch I
> would appreciate any help.
>
> Regards,
> Joe
>
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