< communications > The class 5 electronic switching system sold by Lucent Technologies . The 5ESS Switch is the digital central office circuit switching system many communication service providers use.
(2001-07-12)
< communications > The class 5 electronic switching system sold by Lucent Technologies . The 5ESS Switch is the digital central office circuit switching system many communication service providers use.
(2001-07-12)
FOLDOC computer English dictionary. Английский словарь по компьютерам FOLDOC. 2012