diff --git a/library/GSUP_Types.ttcn b/library/GSUP_Types.ttcn
index ac85fca2a..7455085ce 100644
--- a/library/GSUP_Types.ttcn
+++ b/library/GSUP_Types.ttcn
@@ -139,6 +139,9 @@ template GSUP_PDU ts_GSUP(GSUP_MessageType msgt, GSUP_IEs ies := {}) := {
 template GSUP_PDU ts_GSUP_SAI_REQ(hexstring imsi) :=
 	ts_GSUP(OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST, { valueof(ts_GSUP_IE_IMSI(imsi)) });
 
+template GSUP_PDU tr_GSUP_SAI_REQ(template hexstring imsi) :=
+	tr_GSUP(OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST, { tr_GSUP_IE_IMSI(imsi), * });
+
 template GSUP_PDU tr_GSUP_SAI_ERR(template hexstring imsi, template integer cause) :=
 	tr_GSUP(OSMO_GSUP_MSGT_SEND_AUTH_INFO_REQUEST, {
 			tr_GSUP_IE_IMSI(imsi), tr_GSUP_IE_Cause(cause) });
diff --git a/msc_tests/BSC_ConnectionHandler.ttcn b/msc_tests/BSC_ConnectionHandler.ttcn
index 402448e33..d3dcd29c8 100644
--- a/msc_tests/BSC_ConnectionHandler.ttcn
+++ b/msc_tests/BSC_ConnectionHandler.ttcn
@@ -147,7 +147,9 @@ runs on BSC_ConnHdlr {
 	BSSAP.send(ts_BSSMAP_ClassmarkUpd(g_pars.cm2, g_pars.cm3));
 
 	if (expect_auth) {
+		GSUP.receive(tr_GSUP_SAI_REQ(g_pars.imsi));
 		/* FIXME */
+		//GSUP.send(tr_GSUP_SAI_RES());
 	}
 
 	/* Expect MSC to perform LU with HLR */