diff --git a/library/MGCP_Templates.ttcn b/library/MGCP_Templates.ttcn
index 4cc2c6b..4736aaa 100644
--- a/library/MGCP_Templates.ttcn
+++ b/library/MGCP_Templates.ttcn
@@ -143,6 +143,19 @@
 		sdp := sdp
 	}
 
+	template MgcpResponse ts_CRCX_ACK_osmux(MgcpTransId trans_id, MgcpConnectionId conn_id, MgcpOsmuxCID osmux_cid, template SDP_Message sdp := omit) := {
+		line := {
+			code := "200",
+			trans_id := trans_id,
+			string := "OK"
+		},
+		params:= {
+			ts_MgcpParConnectionId(conn_id),
+			ts_MgcpParOsmuxCID(osmux_cid)
+		},
+		sdp := sdp
+	}
+
 	template MgcpCommand ts_MDCX(MgcpTransId trans_id, charstring ep, MgcpConnectionMode mode, MgcpCallId call_id, MgcpConnectionId conn_id, template SDP_Message sdp := omit) := {
 		line := t_MgcpCmdLine("MDCX", trans_id, ep),
 		params := {