diff --git a/mgw/MGCP_Test.ttcn b/mgw/MGCP_Test.ttcn
index c6fe15b..47a7690 100644
--- a/mgw/MGCP_Test.ttcn
+++ b/mgw/MGCP_Test.ttcn
@@ -1593,7 +1593,7 @@
 		f_init(ep);
 		flow := valueof(t_RtpFlow(mp_local_ip, mp_remote_ip, 112, "AMR/8000/1"));
 		flow.em.portnr := 10000;
-		f_flow_create(RTPEM[0], ep, call_id, "recvonly", flow, false);
+		f_flow_create(RTPEM[0], ep, call_id, "recvonly", flow, true);
 
 		f_rtpem_mode(RTPEM[0], RTPEM_MODE_TXONLY);
 		f_sleep(1.0);