TLS/SRTP

"asma.bouddyach--- via sr-users" <[email protected]> Tue, 30 Jun 2026 15:45:49 -0000

Newsgroups	gmane.comp.voip.ser
Message-ID	<[email protected]>

Hi all,

My Kamailio SBC (in front of 3CX,)  currently runs SIP in clear text, no SRTP. Security is mainly IP-based ACLs:

if ($si == PBX_IP) {
    route(FROM_PBX);
if ($si == ITSP_IP_IN || $si == ITSP_IP_OUT) {
    route(FROM_ITSP);

What are the concrete risks of staying without TLS/SRTP in this setup, and would you still recommend encryption given these ACLs already in place?

Thanks,
Asmaa  BOUDDYACH
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