Hello, On 8/9/11 1:43 PM, aur.hoffmann(a)free.fr wrote: it is possible, Kamailio can do bridging of SIP signaling traffic between UDP, TCP, TLS and UDP as well as in combination of the four with IPv4 and IPv6 (for example you can have incoming TCP on IPv4 to outgoing TLS on IPv6). For TCP to TLS just load and configure TLS module: http://kamailio.org/docs/modules/stable/modules/tls.html Be sure you enable listening on TLS socket: http://www.kamailio.org/dokuwiki/doku.php/core-cookbook:3.1.x#enable_tls Then Kamailio will automatically do the bridging of the signaling once you call a relay function that has the destination over TLS. Cheers, Daniel -- Daniel-Constantin Mierla -- http://www.asipto.com Kamailio Advanced Training, Oct 10-13, Berlin: http://asipto.com/u/kat http://linkedin.com/in/miconda -- http://twitter.com/miconda