Synaccess-networks NP-0801DTM Manuale Utente Scaricare il pdf (Pagina 66)

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3GPPTS27.007ATCOMMANDS

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HSPA+ATCommandsReferenceGuide 66

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Syntax

Command Commandtype

AT+CHLD=[<n>] Execute

AT+CHLD=? Test

ParametersandValues

<n> 

0

Releasesallheldcalls,orsetstheUDUB(UserDeterminedUserBusy)indication

forawaitingcall.(onlyfromversionD).

1 Releasesallactivecallsifanyexist,andacceptstheother(heldorwaiting)call

1X ReleasesaspecificactivecallX.

2

Placesallactivecalls,ifanyexist,onholdan

dacceptstheother(heldorwaiting)

call.

2X

PlacesallactivecallsonholdexceptcallXwithwhichcommunicationis

supported(onlyfromversionD).

3 Addsheldcalltotheconversation.

4

Connectsthetwocallsanddisconnectsthesubscriberfrombothcalls(ExplicitCall

Transfer(E

CT))

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Note:"X"isthenumbering(startingwith1)ofthecallgivenbythesequenceof

settinguporreceivingthecalls(active,heldorwaiting)asseenbytheserved

subscriber.Callsholdtheirnumberuntiltheyarereleased.Newcallstakethe

lowestavailablenum

ber.

Note:Wherebothaheldandawaitingcallexist,theaboveproceduresapplyto

thewaitingcall—nottotheheldcall—inconflictingsituations.

Notes

 OnlyforVOICEcalls.

 Reference:3GPPTS27.007.

UnstructuredSupplementaryServiceData+CUSD

SetcommandallowscontroloftheUnstructuredSupplementaryServiceData(USSD[GSM02.90]).

Readcommandreportsthecurrentvalueoftheparameter<n>.

Testcommandreportsthesupportedvaluesfortheparameter<n>.

Syntax

Command Commandtype

AT+CUSD=[<n>[,<str>[,<dcs>]]] Set

AT+CUSD? Read

AT+CUSD=? Test

ParametersandValues

<n> Disablesorenablethepresentationofanunsolicitedresultcode.

0 DisabletheresultcodepresentationintheDTA.

1 EnabletheresultcodepresentationintheDTA.

2 CancelanongoingUSSDsession.Notapplicabletoreadcommandresponse.

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Synaccess-networks NP-0801DTM Manuale Utente Pagina 66

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