I have added a site with and MX64 and the Shoretel IP655 VoIP phones are pulling IP addresses via DHCP as expected but not the option settings. Option 156 is the Shoretel/Mitel Connect standard and works fine at all my other sites (but they are on MPLS circuits).   Things I’ve tried: 1 - Custom option 156 configservers=172.20.50.2, ftpServers=172.20.50.2, Layer2Tagging=1, VlanId=68 2 - Custom option 150 configservers=172.20.50.2, ftpServers=172.20.50.2, Layer2Tagging=1, VlanId=68 3 - Custom option 66 configservers=172.20.50.2, ftpServers=172.20.50.2, Layer2Tagging=1, VlanId=68 4 - Custom option 66 172.20.50.2 (172.20.50.2 is the tftp server that the phones pull their config from)   The following UDP ports must be open 5440, 5441, 5443. I have no ACL's in place and is open any - any.   Thank you for any light you can bring to my situation. ... View more