diff --git a/coreapi/linphonecall.c b/coreapi/linphonecall.c
index dbbccee05..d96735a64 100644
--- a/coreapi/linphonecall.c
+++ b/coreapi/linphonecall.c
@@ -1364,6 +1364,9 @@ LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddr
 	call->params = linphone_call_params_copy(params);
 	linphone_call_init_common(call, from, to);
 
+	/*reserve the sockets immediately*/
+	linphone_call_init_media_streams(call);
+	
 	call->current_params->update_call_when_ice_completed = call->params->update_call_when_ice_completed; /*copy param*/
 
 	linphone_call_fill_media_multicast_addr(call);
@@ -6022,10 +6025,6 @@ end:
 int linphone_call_restart_invite(LinphoneCall *call) {
 	linphone_call_create_op(call);
 	linphone_call_stop_media_streams(call);
-	ms_media_stream_sessions_uninit(&call->sessions[call->main_audio_stream_index]);
-	ms_media_stream_sessions_uninit(&call->sessions[call->main_video_stream_index]);
-	ms_media_stream_sessions_uninit(&call->sessions[call->main_text_stream_index]);
-	linphone_call_init_media_streams(call);
 	return linphone_call_start_invite(call, NULL);
 }
 
diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 4e3c33d3f..82d14b0b7 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -3571,8 +3571,7 @@ LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const
 	if (linphone_call_params_get_local_conference_mode(params) ==  FALSE) lc->current_call=call;
 	linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
 	call->log->start_date_time=ms_time(NULL);
-	linphone_call_init_media_streams(call);
-
+	
 	if (linphone_nat_policy_ice_enabled(call->nat_policy)) {
 		if (lc->sip_conf.sdp_200_ack){
 			ms_warning("ICE is not supported when sending INVITE without SDP");