please help me in problem with SPA504G does this phone supports CDP enhancement for second port disconnect or Proxy EAPoL-Logoff if yes how can i configure it in SIP mode. i have switch SF300-24PP 24-Port 10/100 PoE+ configured to Port Authentication via Radius. All computers connect by certificate to radius server behind IP Phone SPA504 .When computer is unplugged phone not removing the authenticated session when the data device disconnects from behind the phone.
