Our operators are required to make a toll ticket, a paper copy we use as audit trail to justify AUTOVON
calls," says Bell.
Eight New ESS Units Added to Autovon
Eight new electronic switching systems were added to the world's largest private telephone network which provides rapid communications among 1,700 military bases and government installations.
Also, on October 26, 1981, the Company updated the AUTOVON
equipment with a 2,000 line digital switch.
Two basic types of ESS were developed: the two-wire office used for commercial Bell system service, and the four-wire office used for the government's AUTOVON