diff --git a/msc/BSC_ConnectionHandler.ttcn b/msc/BSC_ConnectionHandler.ttcn
index d4723e5..170694a 100644
--- a/msc/BSC_ConnectionHandler.ttcn
+++ b/msc/BSC_ConnectionHandler.ttcn
@@ -376,7 +376,9 @@
 	EST_TYPE_PAG_RESP,
 	EST_TYPE_MO_SMS,
 	EST_TYPE_SS_ACT,
-	EST_TYPE_MO_CSD
+	EST_TYPE_MO_CSD,
+	EST_TYPE_VGCS,
+	EST_TYPE_VBS
 };
 
 /* helper function to fully establish a dedicated channel */
@@ -411,6 +413,12 @@
 	case (EST_TYPE_SS_ACT) {
 		l3_info := valueof(ts_CM_SERV_REQ(CM_TYPE_SS_ACT, mi));
 		}
+	case (EST_TYPE_VGCS) {
+		l3_info := valueof(ts_CM_SERV_REQ(CM_TYPE_VGCS, mi));
+		}
+	case (EST_TYPE_VBS) {
+		l3_info := valueof(ts_CM_SERV_REQ(CM_TYPE_VBS, mi));
+		}
 	}
 
 	/* Send BSSAP_Conn_Req with COMPL L3 INFO to MSC */