Help!....i cannot get Grandstream GXP1200 to auto provision. i am trying to use DHCP on the domain controller with option 66 set to the url http://10.0.0.21:5000/provisioning. This is a test setup with a brand new free edition 3CX all up to date. When the phone boots it says auto provisioning and seems to donwload the config files, however it never appears in the phones section on 3cx and the server activity log never shows it's presence. i have reserved the phone ip and mac in dhcp and added the provisioning url in there too. 3cx running on win7 (tryed XP) with Abyss brand new phone and fresh install......i want to auto provision as the site loses power and i want the phones to recover gracefully.