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PU
public data network
public domain
public IP address
public key encryption
public key infrastructure
Public Safety Access Point
Public Service Commission
public switched telephone network
public switched telephone system
Public UNI
Public Utility Commission
PUC
pull
pulse
pulse amplitude modulation
pulse code modulation
pulse dispersion
pulse shape
pulse shaping
pump laser
pure mesh
purist
push
push-to-talk
| push-to-talk over cellular
PVC
PWE
PWE3
PWT
PWT-E
PXC
Q Q
Q.931
Q band
Q series
Q Signaling
QAM
QCIF
QoS
QPSK
QPSX
QSIG
quadbit
quadraplex
Quadrature Amplitude Modulation
quadrature phase-shift keying
quadriphase phase-shift keying
quadruple play
quality of service
| quantization and compaction encoding
quantize
quantizing noise
quantum
quantum leap
Quarter Common Intermediate Format
quartet
quaternary phase-shift keying
quatraplex
queue
Queued Packet Synchronous Exchange
QuickConnect
quintet
QWERTY
R R
R/C
R interface
R1022 ATM Technology Testbed
RA
RACE
radar
radian
radiant flux
radiation
radio
| radio access network
Radio Act of 1927
radio area network
radio common carrier
Radio Control
radio frequency
Radio Frequency Interference
radio guide
radio line-of-sight
radiophone
radius
RAID
rain attenuation
rain-barrel effect
rain fade
rake receiver
RAM
Raman amplifier
RAN
random access memory
random noise
RAS
raster
rasterize |