Hello, from record routing point of view, that is probably the good solution. If you have many aliases like PREFIX.mydomain.net, instead of listing them individually, you can use: * http://www.kamailio.org/docs/modules/5.3.x/modules/corex.html#corex.p.alias… Provided that you do not have any need to skip some specific subdomains. Cheers, Daniel On 25.03.20 03:45, Sergiu Pojoga wrote: Hi there, Question: how can I advertise and later match multiple FQDNs per socket? Example: auto_aliases=no alias="mydomain.net":5060 alias="mydomain.net":5061 alias="client1.mydomain.net":5060 alias="client1.mydomain.net":5061 # looks like I can advertise only one address per socket? listen=udp:65.65.65.65:5060 advertise "mydomain.net":5060 listen=tls:65.65.65.65:5061 advertise "mydomain.net":5061 Adding RR before relaying downstream like so: record_route_preset("client1.mydomain.net:5061;transport=tls;r2=on", "client1.mydomain.net:5060;r2=on"); This is the warning (just warning, works fine otherwise) after receiving for example the ACK from upstream following the 200 OK: *WARNING*: {1 19082 ACK } rr [loose.c:768]: rr_do_force_send_socket(): no socket found to match second RR ( sip:client1.mydomain.net:5061;transport=tls;lr;r2=on) Figured warning itself can be turned off with modparam "enable_socket_mismatch_warning" of RR, still I'd like to know if I'm doing something wrong or there's a better way. Much obliged, --Sergiu _______________________________________________ Kamailio (SER) - Users Mailing Listsr-users@lists.kamailio.orghttps://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda