canreinvite=nonat
nat=yes
context=from-trunk
host=atlanta.voip.ms ; (one of our multiple servers, you can choose the one closer to your location)
username=100000 ; (Replace with your 6 digit Main SIP Account User ID or Sub Account username, i.e. 123456 or 123456_sub)
fromuser=100000 ; (Replace with your 6 digit Main SIP Account User ID or Sub Account username, i.e. 123456 or 123456_sub)
secret=***** ; (password associated with the Main or Sub-account. Please avoid using the '#' character in the password as it will cause authentication issues)
type=peer
disallow=all
allow=ulaw
; allow=g729 ; uncomment if you purchased g.729 from Digium
trustrpid=yes
sendrpid=yes
insecure=invite
qualify=yes