Online Nadp eLearning Training
From 123-CBT Computer Based Training
CCNT Basic Telecommunications v6 0 Part 2

....
Identify features of the North American Dialing Plan (NADP).
Identify features and functions of common channel signaling (CCS).
Identify features and functions of Signaling System 7 (SS7).
Identify features and functions of analog switching.
Identify features and functions of digital switching.
Identify features and functions of digital time division switching (TDS).
Identify
more...
