[asterisk-users] How to set externip in sip.conf automatically?

[RR]

Larry, am I missing something but you seem to be putting the externip
into the MYIP variable but reading some EXTERNIP variable through
$ENV{}. Shouldn't you be doing something like externip=${ENV{MYIP}}?
The other issue is also the use of curly brackets as opposed to
paranthesis. The snip from the manual seems to use curly brackets but
you're using paranthesis in your example above.

Just silly things to watch out for :D