R&D Research and Development R&O Report and Order RA Rate Adaptation (ISDN/GSM) RAB Registrar Accreditation Board RACE Research and development in Advanced Communications technologies for Europe RACH Random Access CHannel (GSM) RAD Rapid Application Development RADIUS Remote Authentication Dial-In User Service RAID Redundant Array of Inexpensive Disks RAM Random Access Memory RARP Reverse Address Resolution Protocol (IP) RBOC Regional Bell Operating Company RCA Radio Corporation of America RCC Radio Common Carrier RDBMS Relational DataBase Management System RDCRS Research and Development Center for Radio Systems RDF Resource Description Framework (XML) RDP Real-time Distributed Processing RDSS Radio Determination Satellite System RDT Remote Digital Terminal RELP Residual-Excited Linear Predictive coding REPS Raychem Electronic Packaging System RF Radio Frequency RFC Request For Comments (procedura per std. Internet) RFID Radio Frequency IDentification RFP Request For Proposal RFP Radio Fixed Part (DECT) RG Residential Gateway RGB Red Green & Blue RHC Regional Holding Company RID Remote Isolation Device RIL Radio Interface Layer (GSM) RIP Routing Information Protocol RISC Reduced Instruction Set Computing RLAN Radio Local Area Network RLL Radio Local Loop RLL Radio Local Loop RLP Radio Link Protocol RM-ODP Reference Model of Open Distributed Processing rms round mean square (valore efficace) RMTAT Remote Multiple Technology Access Terminal RNR Receive Not Ready ROADS Robust Open Architecture Distributed-Switching ROAR Return On Applied Resources ROM Read Only Memory ROS Remote Operations Service RP Radio Port RPC Remote Procedure Call RPCU Radio Port Control Unit RPE Remote Peripheral Equipment RPI Resource Platform Interface RR Receive Ready RRM Radio Resource Management (UMTS) RSL Request and Status Link RSM Radio Subsystem Management o protocollo 08.58 (SGM) RSN Robust Security Network RSNA Robust Security Network Association RSVP Resource reSerVation Protocol (IP) RT Remote Terminal RTCP Realtime Transport Control Protocol (IP) RTF Rich Text Format RTI Routing Tag Insertion RTP Realtime Transport Protocol (IP) RUS Rural Utility Service