On 11 Dec 2014, at 04:30, nadie nadie@openmailbox.org wrote:
Hello. I installed kamailio. All OK. But when i call to other servers. ostel.co. for example. no ring. What element permits federation between kamailios? DNS Records?
DNS is the federation mechanism for SIP. With the example configuration you tell Kamailio which domain it is authoritative for and all other URIs will be forwarded using DNS SRV records.
Whether or not the other domain accepts your call is up to them.
/O