diff --git a/coreapi/linphonecall.c b/coreapi/linphonecall.c
index f2a62271a..4f2a571a9 100644
--- a/coreapi/linphonecall.c
+++ b/coreapi/linphonecall.c
@@ -1413,8 +1413,11 @@ void linphone_call_unref(LinphoneCall *obj){
 	belle_sip_object_unref(obj);
 }
 static unsigned int linphone_call_get_n_active_streams(const LinphoneCall *call) {
-	SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
-	if (!md) return 0;
+	SalMediaDescription *md=NULL;
+	if (call->op)
+		md = sal_call_get_remote_media_description(call->op);
+	if (!md)
+		return 0;
 	return sal_media_description_nb_active_streams_of_type(md, SalAudio) + sal_media_description_nb_active_streams_of_type(md, SalVideo);
 }
 
diff --git a/tester/rcfiles/multi_account_rc b/tester/rcfiles/multi_account_rc
index a78a5bc16..8aefbfcaf 100644
--- a/tester/rcfiles/multi_account_rc
+++ b/tester/rcfiles/multi_account_rc
@@ -51,5 +51,14 @@ reg_expires=3600
 reg_sendregister=1
 publish=0
 dial_escape_plus=0
+realm=auth1.example.org
 
+[proxy_3]
+reg_proxy=auth1.example.org
+reg_identity=sip:liblinphone_tester@auth1.example.org
+reg_expires=600
+reg_sendregister=1
+publish=0
+dial_escape_plus=0
+realm=auth1.example.org
 
diff --git a/tester/register_tester.c b/tester/register_tester.c
index ffd54f1a5..8c4aaa92a 100644
--- a/tester/register_tester.c
+++ b/tester/register_tester.c
@@ -461,6 +461,7 @@ static LinphoneCoreManager* configure_lcm(void) {
 	LinphoneCoreManager *mgr=linphone_core_manager_new( "multi_account_rc");
 	stats *counters=&mgr->stat;
 	CU_ASSERT_TRUE(wait_for(mgr->lc,mgr->lc,&counters->number_of_LinphoneRegistrationOk,ms_list_size(linphone_core_get_proxy_config_list(mgr->lc))));
+	CU_ASSERT_EQUAL(counters->number_of_LinphoneRegistrationFailed,0);
 	return mgr;
 }