Hello Alex, Is for mix of tcp transport and alias is required add any additional parameters in global configuration ? Slava. From: "Alex Balashov" <abalashov(a)evaristesys.com> To: "sr-users" <sr-users(a)lists.sip-router.org> Sent: Saturday, March 28, 2015 5:26:16 PM Subject: Re: [SR-Users] NAT Contact: Hello Slava, On 03/28/2015 02:26 PM, Slava Bendersky wrote: This is not the function of fix_nated_contact(). Have a look at a add_rcv_param(): http://kamailio.org/docs/modules/4.2.x/modules/nathelper.html#nathelper.f.a… Someone might correct me if I'm wrong, but I believe the problem with the ;received approach is that it's only useful for registrations, since only the registrar module has a provision that allows it to be used automatically. So, for larger applications outside of registration, you should take a look at the new add_contact_alias() / handle_ruri_alias() facility: http://kamailio.org/docs/modules/4.2.x/modules/nathelper.html#nathelper.f.a… http://kamailio.org/docs/modules/4.2.x/modules/nathelper.html#nathelper.f.h… -- Alex -- Alex Balashov | Principal | Evariste Systems LLC 303 Perimeter Center North, Suite 300 Atlanta, GA 30346 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users