diff --git a/coreapi/bellesip_sal/sal_impl.c b/coreapi/bellesip_sal/sal_impl.c
index 0ef2250df..49f6fa792 100644
--- a/coreapi/bellesip_sal/sal_impl.c
+++ b/coreapi/bellesip_sal/sal_impl.c
@@ -517,22 +517,23 @@ void sal_use_session_timers(Sal *ctx, int expires){
 	return ;
 }
 void sal_use_double_registrations(Sal *ctx, bool_t enabled){
-	ms_error("sal_use_double_registrations not implemented yet");
+	ms_warning("sal_use_double_registrations is deprecated");
 	return ;
 }
 void sal_reuse_authorization(Sal *ctx, bool_t enabled){
-	ms_error("sal_reuse_authorization not implemented yet");
+	ms_warning("sal_reuse_authorization is deprecated");
 	return ;
 }
 void sal_use_one_matching_codec_policy(Sal *ctx, bool_t one_matching_codec){
 	ctx->one_matching_codec=one_matching_codec;
 }
 void sal_use_rport(Sal *ctx, bool_t use_rports){
-	ms_error("sal_use_rport not implemented yet");
+	belle_sip_provider_enable_rport(ctx->prov,use_rports);
+	ms_message("Sal use rport [%s]",use_rports?"enabled":"disabled");
 	return ;
 }
 void sal_use_101(Sal *ctx, bool_t use_101){
-	ms_error("sal_use_101 not implemented yet");
+	ms_warning("sal_use_101 is deprecated");
 	return ;
 }
 void sal_set_root_ca(Sal* ctx, const char* rootCa){
diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 8691f0a31..a43b36362 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -470,8 +470,6 @@ static void net_config_read (LinphoneCore *lc)
 	linphone_core_set_mtu(lc,tmp);
 	tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 	linphone_core_set_download_ptime(lc,tmp);
-	/*only set at setup*/
-	sal_nat_helper_enable(lc->sal,lp_config_get_int(lc->config,"net","enable_nat_helper",1));
 }
 
 static void build_sound_devices_table(LinphoneCore *lc){
@@ -4351,9 +4349,11 @@ void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy
 	switch(pol) {
 	case LinphonePolicyUseUpnp:
 		sal_nat_helper_enable(lc->sal, FALSE);
+		sal_use_rport(lc->sal, FALSE);
 		break;	
 	default:
-		sal_nat_helper_enable(lc->sal, TRUE);
+		sal_nat_helper_enable(lc->sal, lp_config_get_int(lc->config,"net","enable_nat_helper",1));
+		sal_use_rport(lc->sal, lp_config_get_int(lc->config,"sip","use_rport",1));
 		break;
 	}
 	if (lc->sip_conf.contact) update_primary_contact(lc);
diff --git a/coreapi/proxy.c b/coreapi/proxy.c
index 54fe50aa9..2917d14b7 100644
--- a/coreapi/proxy.c
+++ b/coreapi/proxy.c
@@ -286,7 +286,7 @@ LinphoneAddress *guess_contact_for_register(LinphoneProxyConfig *obj){
 		linphone_address_destroy(contact);
 		contact=linphone_address_new(tmp);
 		if (!contact) {
-			ms_error("No valid contact_params for [%p]",linphone_address_get_domain(proxy));
+			ms_error("No valid contact_params for [%s]",linphone_address_get_domain(proxy));
 			return NULL;
 		}