Extreme Networks

Hi Cheyne, Please try the steps listed in the following article and let us know if it works after that: https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-configure-LLDP-for-Extreme-switches... Thanks, Matthew edit 10/14/15: updated ...

Hi Cheyne, What type of VOIP phones are you using? Also, do you have LLDP enabled? A lot of times running LLDP commands will resolve the issue.