diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index 7cb025c829..499c718a85 100644
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -7967,6 +7967,7 @@ void sofia_handle_sip_i_invite(switch_core_session_t *session, nua_t *nua, sofia
 	char *sql = NULL;
 	char *acl_context = NULL;
 	const char *r_sdp = NULL;
+	int broken_device = 0;
 
 	profile->ib_calls++;
 
@@ -8010,7 +8011,13 @@ void sofia_handle_sip_i_invite(switch_core_session_t *session, nua_t *nua, sofia
 	}
 
 
-	if (sofia_test_pflag(profile, PFLAG_AGGRESSIVE_NAT_DETECTION)) {
+	if (profile->server_rport_level >= 2 && sip->sip_user_agent && sip->sip_user_agent->g_string &&
+		(!strncasecmp(sip->sip_user_agent->g_string, "Polycom", 7) || 
+		 !strncasecmp(sip->sip_user_agent->g_string, "KIRK Wireless Server", 20) )) {
+		broken_device = 1;
+	}
+
+	if (sofia_test_pflag(profile, PFLAG_AGGRESSIVE_NAT_DETECTION) || broken_device) {
 		if (sip && sip->sip_via) {
 			const char *port = sip->sip_via->v_port;
 			const char *host = sip->sip_via->v_host;
diff --git a/src/mod/endpoints/mod_sofia/sofia_reg.c b/src/mod/endpoints/mod_sofia/sofia_reg.c
index fb13f0cff5..a4048767c8 100644
--- a/src/mod/endpoints/mod_sofia/sofia_reg.c
+++ b/src/mod/endpoints/mod_sofia/sofia_reg.c
@@ -1464,7 +1464,7 @@ uint8_t sofia_reg_handle_register(nua_t *nua, sofia_profile_t *profile, nua_hand
 				to_user = force_user;
 			}
 
-			if (profile->server_rport_level == 3 && sip->sip_user_agent &&
+			if (profile->server_rport_level >= 2 && sip->sip_user_agent &&
 				sip->sip_user_agent->g_string &&
 				( !strncasecmp(sip->sip_user_agent->g_string, "Polycom", 7) || !strncasecmp(sip->sip_user_agent->g_string, "KIRK Wireless Server", 20) )) {
 				if (sip && sip->sip_via) {