Sony Ericsson GR47/GR48 - Manual (Page 15)

3. ABBREVIATIONS
15
LZT 123 7589 R1A
PDU Protocol Data Unit
RF Radio Frequency
RFU Reserved for Future Use
RLP Radio Link Protocol
RTC Real Time Clock
SDP Service Discovery Protocol
SIM Subscriber Identity Module
SMS Short Message Service
TCP Transport Control Protocol
UDP User Datagram Protocol
Abbreviation Explanations