As we mentioned last time, there was an entire industry built around using TDM bandwidth efficiently due to the compelling economics of building corporate private-line networks. By the late 1980s, ...

Verizon Communications this week announced plans to shift its nationwide telecommunications network to packet-switched technology as part of a plan to offer new voice-over-IP and multimedia services.

Telecommunications service provider Verizon Communications has begun using an Asynchronous Transfer Mode (ATM ) backbone to carry some voice calls, a step in the carrier’s first migration to a new ...