Term of the Moment

crypto


Look Up Another Term


Definition: Class 5


A telephone term for equipment and services that are customer facing. The Class nomenclature was coined by AT&T. See end office switch and Class 4.


A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
misc