I have just converted a customer from CME/CUE to CM 4.1(3) with unified messaging. The CME/CUE rtr has become the h.323 voice gateway. The customer had 3 ata's working with the CME/CUE solution, they were running h.323 code in order to operate with the dial peers.
Since we changed to CM I was told that I would need to upgrade my ATA's to sccp and let them auto register to the cm and them configure them from there. After upgrading them and resetting them to factory defaults I still can't get them to register to the CM. TAC has looked at the atadefault.cfg cnf, and xml files. How should I get these to operate with this customers networks.