I'm working to use a TA904 as an ATA on my Asterisk box. I have the the FXS Port registered as an extension, and it mostly seems to work ok, but when a Handset make a call, the handset never hears the 'ringing' of the phone. So you don't know if a call is progressing until the remote party answers. Once they answer, 2way audio is fine. I'm thinking it's something simple. Here are the relevant parts of my configuration. Hopefully someone can point out my error. Is there anything more than this needed for an ATA setup?
Thanks,
Nate
!
interface fxs 0/1
no shutdown
!
voice trunk T04 type sip
sip-server primary 216.XXX.XXX.XXX
!
voice grouped-trunk 1114
trunk T04
accept $ cost 0
!
!
voice user 1114
connect fxs 0/1
no cos
password "1234"
sip-identity 1114 T04 register auth-name "1114" password "XXXXXXXX"
!
