diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index 81819ff..75b7688 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -7203,7 +7203,7 @@
 	cpars.bearer_cap.octet6.userRate := int2bit(enum2int(user_rate), 4);
 
 	f_perform_lu();
-	f_mo_call(cpars);
+	f_mo_call(cpars, 0.5);
 }
 
 friend function f_tc_lu_and_mo_csd(charstring id, BSC_ConnHdlrPars pars) runs on BSC_ConnHdlr {
@@ -7250,7 +7250,7 @@
 	cpars.mncc_bearer_cap.data.user_rate := user_rate;
 
 	f_perform_lu();
-	f_mt_call(cpars);
+	f_mt_call(cpars, 0.5);
 }
 friend function f_tc_lu_and_mt_csd(charstring id, BSC_ConnHdlrPars pars) runs on BSC_ConnHdlr {
 	f_init_handler(pars);