The Digital Waveform
Digital systems in telephony can take advantage of this binary state and augment
communications with additional features that are not available in analog
systems, including compression.This allows speech to be sent in fewer bits than in
analog format, and, in the migration to AVVID, the data stream can actually be
stopped when a party stops speaking.This can greatly increase the volume of
connections that can concurrently occur in the network. ISDN PRI is one of the
most popular digital connections.