customer has an option 11c/cs1000 rls 4.5 We recently received 4 3com ata's from their plant in mexico that register back to the 3com nbx3000 in that location.I installed an xut card and programmed an auto-terminate route and 4 tn's.The ATDN is an acd queue with an auto-attendant.Outbound calls work great,but inbound calls ring no answer.After messing around with this for a couple hours and calling some contacts,have come to the conclusion that the ata's need to be ground start.Not sure if that is doable.Any thoughts?