diff --git a/openbsc/src/mgcp/mgcp_protocol.c b/openbsc/src/mgcp/mgcp_protocol.c
index bbdc43e..7c8b460 100644
--- a/openbsc/src/mgcp/mgcp_protocol.c
+++ b/openbsc/src/mgcp/mgcp_protocol.c
@@ -728,6 +728,7 @@
 
 	endp->net_rtp = endp->net_rtcp = endp->bts_rtp = endp->bts_rtcp = 0;
 	endp->net_payload_type = endp->bts_payload_type = -1;
+	endp->in_bts = endp->in_remote = 0;
 	memset(&endp->remote, 0, sizeof(endp->remote));
 	memset(&endp->bts, 0, sizeof(endp->bts));
 }