OTE PUMA T2 - Page 28

PUMA T2
Technical Handbook
List of acronyms
Page xxviii OTE Proprietary information
P/N: 779-0306/01
Revision 03
UL
UpLink
Um
TETRA air interface
UP
Unallocated Physical channel
UPT
Universal Personal Telecommunications
USSI
Un-exchanged Short Subscriber Identity
V
Volt
V.24T
Physical Layer Protocol over the RT reference point
VAD
Voice Activity Detector [PP]
(V)ASSI
Visiting Short Subscriber Alias Identity or Visitor ASSI
(V)ATSI
Visiting TETRA Subscriber Alias Identity or Visitor ATSI
V+D
Voice Plus Data
VC
Virtual Call
VDB
Visited Data Base [GPR]
(V)GSSI
Visiting Short Subscriber Group Identity or Visitor GSSI
(V)GTSI
Visiting TETRA Subscriber Group Identity or Visitor GTSI
VLR
Visitor Location Register. OTE synonym for VDB [GPR]
VPN
Virtual Private Network [PP]
VR
Vehicular Radio (a "mobile") [PP]
VR
Voice Recorder [PP]
WAN
Wide Area Network [PP]
WAP
Wireless Application Protocol
WDS
WAN Dispatcher Station [PP]
XRES1
eXpected RESponse 1
XRES2
eXpected RESponse 2