I assume that the Asterisk server and TA904 are on the same network with no routing or NATing.
If this is not the case please post your network layout
Your config looks OK but try the following one at a time:
- Downgrade to Firmware version A4.11.00.
- On the T02 trunk remove "no nls" and rtp frame-packetizatation 30
- On the PRI interface remove "isdn name-delivery setup"
If possible please provide a WireShark capture and/or the debug log from Asterisk
This is now resolved. I went back onsite, without changing my config, rebooted the PBX and calls work now. Thanks for all the help, I knew something weird had to be up.