Default to TLSv1 through TLSv1.2 if unspecified

src/mod/endpoints/mod_sofia/sofia.c

@@ -3764,7 +3764,9 @@ switch_status_t config_sofia(sofia_config_t reload, char *profile_name)
 					profile->sip_force_expires = 0;
 					profile->sip_expires_max_deviation = 0;
 					profile->sip_subscription_max_deviation = 0;
-					profile->tls_version = 0;
+					profile->tls_version = SOFIA_TLS_VERSION_TLSv1;
+					profile->tls_version |= SOFIA_TLS_VERSION_TLSv1_1;
+					profile->tls_version |= SOFIA_TLS_VERSION_TLSv1_2;
 					profile->tls_timeout = 300;
 					profile->mflags = MFLAG_REFER | MFLAG_REGISTER;
 					profile->server_rport_level = 1;
@@ -4701,6 +4703,7 @@ switch_status_t config_sofia(sofia_config_t reload, char *profile_name)
 						profile->tls_verify_in_subjects_str = switch_core_strdup(profile->pool, val);
 					} else if (!strcasecmp(var, "tls-version") && !zstr(val)) {
 						char *ps = val, *pe;
+						profile->tls_version = 0;
 						while (1) {
 							int n;
 							pe = strchr(ps,',');