P

P2MP - Point To MultiPoint

PBX - Private Branch eXchange

PCRF - Policy and Charging Rules Function

P-CSCF - Proxy Call  Session Control Function

PIC - Photonic Integrated Circuit

PM - Performance Management

PoC - Proof of Concept

PON - Passive Optical Networks

ProSe - Proximity Services

PS - Packet Switched

PSTN - Public Switch Telephony Network

 

Q

QoS - Quality of Service

 

R

R&D - Research and Development

RAT - Radio Access Technology

RN - Remote Node

ROADM - Reconfigurable Optical Add Drop Multiplexers

RTP - Real Time Protocol

RTSP - Real Time Streaming Protocol