diff --git a/sgsn/SGSN_Tests.ttcn b/sgsn/SGSN_Tests.ttcn
index 8094866..3f479da 100644
--- a/sgsn/SGSN_Tests.ttcn
+++ b/sgsn/SGSN_Tests.ttcn
@@ -1766,7 +1766,7 @@
 	/* unregister the old IMSI */
 	f_bssgp_client_unregister(g_pars.imsi);
 	/* Simulate a foreign IMSI */
-	g_pars.imsi := '001010123456789'H;
+	g_pars.imsi := '001010123456700'H;
 	f_bssgp_client_register(g_pars.imsi, g_pars.tlli, g_pars.bssgp_cell_id[0]);
 
 	/* there is no auth */
@@ -1786,6 +1786,15 @@
 		}
 	}
 }
+
+private function f_TC_attach_closed_add_vty(charstring id) runs on BSSGP_ConnHdlr {
+
+	f_TC_attach_closed_foreign(id);
+	f_TC_attach_closed_imsi_added(id);
+
+}
+
+
 testcase TC_attach_closed_add_vty() runs on test_CT {
 	/* VTY-> SGSN: policy close
 	 * MS -> SGSN: Attach Request
@@ -1805,12 +1814,10 @@
 	f_sleep(1.0);
 	f_vty_config(SGSNVTY, "sgsn", "auth-policy closed");
 	f_vty_config(SGSNVTY, "sgsn", "imsi-acl del 001010123456789");
+	f_vty_config(SGSNVTY, "sgsn", "imsi-acl del 001010123456700");
+	f_vty_config(SGSNVTY, "sgsn", "imsi-acl add 001010123456700");
 	/* test with foreign IMSI: Must Reject */
-	vc_conn := f_start_handler(refers(f_TC_attach_closed_foreign), testcasename(), g_gb, 9);
-	vc_conn.done;
-	f_vty_config(SGSNVTY, "sgsn", "imsi-acl add 001010123456789");
-	/* test with same IMSI: Must Accept */
-	vc_conn := f_start_handler(refers(f_TC_attach_closed_imsi_added), testcasename(), g_gb, 10);
+	vc_conn := f_start_handler(refers(f_TC_attach_closed_add_vty), testcasename(), g_gb, 9);
 	vc_conn.done;
 }