Thank you, I really appreciate ! I will read that carefully.
Klaus Darilion writes:ok, i managed to get the wiki page done:
> As suggest use add_contact_alias() instead of fix_nated_contact() to add
> the protocol always to the Contact URI. Of course then you have to use
> handle_ruri_alias() on all in-dialog requests.
http://sip-router.org/wiki/tutorials/alias-example
-- juha