The 5ESS Switch is a Class 5 telephone electronic switching system originally developed by Western Electric and currently sold by Western Electric's descendant, Alcatel-Lucent. This digital central office telephone circuit switching system is used by many telecommunications service providers.
Read more about 5ESS Switch: History, Architecture, Operations, Administration, Maintenance, and Provisioning
Famous quotes containing the word switch:
“Children ... after a certain age do not welcome parental advice. Occasionally, they may listen to another adult, which is why perhaps people should switch children with their neighbors and friends for a while in the teen years!”
—Marian Wright Edelman (20th century)