[Outgoing Settings]
Trunk Name: 1143612827
PEER Details:
context=from-trunk
dtmf=rfc2833
dtmfmode=rfc2833
fromuser=1143612827
host=did.voip.les.net
nat=yes
qualify=yes
secret=*******
type=peer
username=1143612827

[Incoming Settings]
USER Context: les-in (les.net says to have this as from-trunk... other settings i've found say to change it to les-in)
USER Details:
context=from-trunk
dtmf=rfc2833
dtmfmode=rfc2833
nat=yes
secret=*******
type=user