msc/BSC_ConnectionHandler.ttcn: add EST_TYPE_SS_ACT for SS/USSD

Change-Id: If439e7c082b435d7f668065c9f8e3bdfa941dcc5
diff --git a/msc/BSC_ConnectionHandler.ttcn b/msc/BSC_ConnectionHandler.ttcn
index b7a4f50..803cb4d 100644
--- a/msc/BSC_ConnectionHandler.ttcn
+++ b/msc/BSC_ConnectionHandler.ttcn
@@ -192,7 +192,8 @@
 	EST_TYPE_MO_CALL,
 	EST_TYPE_EMERG_CALL,
 	EST_TYPE_PAG_RESP,
-	EST_TYPE_MO_SMS
+	EST_TYPE_MO_SMS,
+	EST_TYPE_SS_ACT
 };
 
 /* helper function to fully establish a dedicated channel */
@@ -221,6 +222,9 @@
 	case (EST_TYPE_MO_SMS) {
 		l3_info := valueof(ts_CM_SERV_REQ(CM_TYPE_MO_SMS, mi));
 		}
+	case (EST_TYPE_SS_ACT) {
+		l3_info := valueof(ts_CM_SERV_REQ(CM_TYPE_SS_ACT, mi));
+		}
 	}
 
 	/* Send BSSAP_Conn_Req with COMPL L3 INFO to MSC */