AOL’s new AIM Call Out VOIP termination service is completely compatible with Asterisk. I just threw a few $$$ on my AIM account and decided to give it a try. It worked first time. For anyone interested, here are sample configs for use with the service:
In sip.conf:
[aol]
type=peer
context=guest
host=sip.aol.com
username=YOURUSERID@aim.com
secret=YOURSECRETPASSWORD
dtmfmode=rfc2833
accountcode=aol
nat=no
canreinvite=yes
call-limit=2
In extensions.conf:
exten => _1NXXNXXXXXX,1,Dial(SIP/{EXTEN}@aol)
exten => _NXXNXXXXXX,1,Dial(SIP/1${EXTEN}@aol)