Glossary
Document 2131145. Rev 1.0 May.09 43
roaming Acellularsu bscriberisinanareawhereserviceisobtained
fromacellularserviceproviderthatisnotthesubscri b er’s
provider.
SMS Shortmessageservices—Afeaturethatallowsusersofa
wirelessdeviceonawirelessnetworktoreceiveortransmit
shortelectronicalphanumericmessages(upto160characters,
depending
ontheserviceprovider).
system tray Usuallylocatedinthelowerrightcornerofyourscreen
TIA TelecommunicationsIndustryAssociation—Astandards‐
settingtradeorganization,whosemembersprovide
communicationsandinformationtechnologyproducts,
systems,distributionservicesandprofessionalservicesinthe
UnitedStatesandaroundtheworld.Consult
www.tiaonline.org.
VPN VirtualPrivateNetwork
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