Cisco Ip Phone 8845 Voip-telefoon

Hi I bought 3 phones for my lab I work on phones all my life these 3 8845 are not registering it has DHCP IP DNS and ITL file is downloaded still issue.Please let me know what else I can do seller ??

Bought 3, one of them can not power on. Tried to contact CISCO, could not get any useful information. Cisco is a giant that falling down quickly, never buy and Cisco product if you can.

Works great. Loved it. I wished the Display can be tilted. I wished the camera can be angled. Other than that, it is a great phone although I prefer the older model's keypad touch and feel.

Perfect phone, remember this phone needs to be used with a Cisco Call manager system to function, you can't just plug into a home network and have service! :)