Hello,
I am new with Asterisk and I have a question wile configuring Astrisk behind a NAT. I know that when placing an inbound call the externip parameter will affect the Contact Header field, but does it affect to the Via Header field?
Thank you very much in advance. Luis
I have never seen anyone reporting any problem in its handling of Via, which suggests it does what is needed in the real world.
The easiest way of finding out is to use “sip set debug on” and look at what is actually sent. The definitive way is to look at the source code.