diff --git a/mgw/MGCP_Test.ttcn b/mgw/MGCP_Test.ttcn
index 0759006..7d01b97 100644
--- a/mgw/MGCP_Test.ttcn
+++ b/mgw/MGCP_Test.ttcn
@@ -686,6 +686,18 @@
 		}
 	}
 
+	/* Send an AuditEndpoint message to the MGW */
+	function f_auep(charstring ep_prefix) runs on dummy_CT {
+		var MgcpEndpoint ep := ep_prefix & "@" & c_mgw_domain;
+		var template MgcpCommand cmd;
+		var MgcpResponse resp;
+
+		f_init(ep);
+
+		cmd := ts_AUEP(get_next_trans_id(), ep);
+		resp := mgcp_transceive_mgw(cmd, tr_AUEP_ACK);
+	}
+
 	function f_crcx(charstring ep_prefix) runs on dummy_CT {
 		var MgcpEndpoint ep := ep_prefix & "2@" & c_mgw_domain;
 		var template MgcpCommand cmd;
@@ -771,6 +783,12 @@
 		f_dlcx_ok(ep, call_id);
 	}
 
+	/* test valid AUEP towards "null" endpoint */
+	testcase TC_auep_null() runs on dummy_CT {
+		f_auep("null");
+		setverdict(pass);
+	}
+
 	/* test valid CRCX without SDP */
 	testcase TC_crcx() runs on dummy_CT {
 		f_crcx(c_mgw_ep_rtpbridge);
@@ -3010,6 +3028,7 @@
 
 	control {
 		execute(TC_selftest());
+		execute(TC_auep_null());
 		execute(TC_crcx());
 		execute(TC_crcx_no_lco());
 		execute(TC_crcx_noprefix());