May have electronic geographic maps of states, counties and city streets where the carrier has buried facilities, upon which reported construction activities are automatically mapped. Human technicians verify that the activities do not pose a danger to the facilities, or dispatch on-site technicians when facilities may be at risk. An international organization which develops standards and defines interfaces for telecommunications. A standard unit of traffic, used in communications engineering. Packet switching information grouped in units of uniform size.
Cells are fixed-length packets.
Cell Relay Packet switching technique which uses packets of fixed length, resulting in lower processing speeds. Roaming ANI identifies the mobile DN placing the call, but does not necessarily identify the true forwarded-call origin. Central Office - CO One local Class 5 Switch with lines to customer locations. A CO is a major equipment center designed to serve the communications traffic of a specific geographic area. CO coordinates are used in mileage calculations for local and interexchange service rates.