Specifications

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INTRODUCTION
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HSPA+ATCommandsReferenceGuide 16
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Introduction
ThisguidedescribestheATcommands:
 HayesstandardATcommandset,inordertomaintainthecompatibilitywithexistingSWprograms.
 3GPPTS27.007specificATcommandandGPRSspecificcommands.
 3GPPTS27.005specificATcommandsforSMS(ShortMessageService)andCBS(CellBroadcastService)
StandardATcommandsandproprietaryATcommandshelpyoucontrolyourproduct.
FormattingConventionsOverview
Thefollowingsyntacticaldefinitionsapply:
<CR>
Carriagereturncharacter,isthecommandlineandresultcodeterminatorcharacter,whichvalue,indecimal
ASCIIbetween0and255,isspecifiedwithinparameterS3.Default:13.
<LF>
Linefeedcharacter,isthecharacterrecognizedaslinefeedcharacter.Itsvalue,indecimalASCIIbetween0and
255,isspecifiedwithinpara
meterS4.Thelinefeedcharacterisoutputaftercarriagereturncharacterifverbose
resultcodesareused(V1optionused)otherwise,ifnumericformatresultcodesareused(V0optionused)it
doesnotappearintheresultcodes.Default:10.
<...> Nameenclosedinanglebracketsisasyntacticalelement.Theydonotapp
earinthecommandline.
[...]
OptionalsubparameterofacommandoranoptionalpartofTerminalAdapter(TA)informationresponseis
enclosedinsquarebrackets.Bracketsthemselvesdonotappearinthecommandline.Whensubparameteris
notgiveninATcommandswhichhaveaRe
adcommand,newvalueequalsitspreviousvalue.ForATcommands
thatdonotstorethevaluesofanyoftheirsubparameters—whicharecalledactiontypecommandsanddonot
haveaReadcommand—actionperformedbasedontherecommendeddefaultsettingofthesubparameter.
ATCommandSyntax 
ThesyntaxrulesfollowedbycommandsinthisguidearesimilartothoseofstandardbasicandextendedAT
commands.
Therearetwotypesofextendedcommands:
 Parametertypecommands.Thistypeofcommandmaybe:
 “set”tostoreavalueorvaluesforlateruse.
 “read”todeterminethecurrentvalueorvaluesstored.
 “tested”todeterminerangesofvaluessupported.
Eachhasatestcommand(trailing=?)togiveinformationaboutthetyp
eofitssubparameters.The
parametersalsohaveareadcommand(trailing?)tocheckthecurrentvaluesofsubparameters.
 Actiontypecommands.Thistypeofcommandmaybe“executed”or“tested”.
 “executed“toinvokeaparticularfunctionoftheequipment,whichgenerallyinvolvesmorethanthesimple
storageofavalueforlateruse.
 “tested”todetermine:
 Ifsubparametersareassociatedwiththeaction,therangesofsubparametersva
luesthataresupported.
Ifthecommandhasnosubparameters,issuingthecorrespondingtestcommand(trailing=?)raisesthe
resultcode“ERROR”.