Hi ALL; I have users with Sipura/Linksys phones regsitered behind Nat( useing STUN at phone not portforwarding ) in my Asterisk box, when I try to call them with another phone i got: Got SIP response 404 "Not Found" back from 217.6.190.4 SIP/217.6.190.4:5060-666d is circuit-busy Is above mentioned problem relates to "Nat", Is there anybody who use sipura with STUN method and can recive calls? My asterisk Sip.conf for Nat has the following: [sipura] .. nat=yes canreinvite=no qualify=1000 Appreciate any help Mohammad -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20051026/bbd14fff/attachment.htm