VT Aggregation Point
—Creates a VT aggregation point (VAP). VAPs allow VT circuits to be aggregated into an STS for hand-off to non-ONS networks or equipment, such as interoffice facilities (IOFs), switches, or a digital access cross-connect systems (DACS). VAPs reduce VT matrix resource utilization at the node where the VT circuits are aggregated on to the STS. This node is called the STS grooming end. The STS grooming end requires an OC-N, EC-1, or DS3XM card. VT aggregation points can be created on BLSR, 1+1, or unprotected nodes, but cannot be created on UPSR nodes.