48v Power Supply , 48v dc Power Supply ,Compatible with Cisco IP Phone 8811, 8841, 8851,8861, 8865,8961,9951,9971.

I bought this thinking there wasn't enough power for POE. Prior to this my bluetooth never worked properly. After purchase, works flawlessly. Still not quite the bluetooth range of say a cell phone, but def improvement over POE

This works with the newer phones. If you have one of the older ones with the weird offset Jacks, this isn’t gonna work, however, I’ve been using this on my newer Cisco phone for the last two months without issue.

It's is unfair to pay for both the phone charger and phone seperate.

This worked fine, but I changed to powering through the network cables using a powered switch. Less cords and fewer plug-ins used.

It is the right voltage, the right polarity, but not the right plug. It has the rubber coating going to far on the plug, so it doesn't fit the phone I bought it for.