two-sample variance
two-source frequency keying
two-tone keying
two-tone telegraph
two-way alternate operation
two-way simultaneous operation
two-wire circuit
TWX®
TX
Type 1 Interconnection Service Provider
type 1 product
type 2 product
type 3 algorithm
type 4 algorithm
U interface
| UDP
UHF
ULF
ultra high frequency (UHF)
ultra low frequency (ULF)
Ultraviolet (UV)
ultrawideband
unallowable character
unassigned cell
Unauthorized Disclosure
unavailability
unbalanced line
unbalanced modulator
unbalanced wire circuit
unbound mode
|