20:10:28:30Tandem switching equipment at toll center toll offices -- Included equipment.

At toll center toll offices, tandem intertoll switching equipment, category 2, includes equipment in the toll office used in the interconnection of toll center to toll center circuits, toll center to tributary circuits, tributary to tributary circuits, or toll center to tandem circuits or in the interconnection of these types of circuits with trunks to local offices in the toll center city, such as interconnection with toll switching trunks, operator trunks, information trunks, and testing trunks. Equipment associated with the local office end of such trunks is included with local switching equipment or switchboard categories as applicable.

Source: 19 SDR 111, effective January 31, 1993.