Table3.Modemcommandlist(continued)
3:Uponconnection,themodem
reportsDCEspeedandtheerror
correctionprotocol.
X X
XExtendedResultCodesX X
X<value><value>
0:CONNECTresultcodeis
givenuponenteringonline
datastate.Dialtoneandbusy
detectionreportingaredisabled.
1:CONNECT<text>resultcode
isgivenupononlinedatastate.
Dialtoneandbusydetection
reportingaredisabled.
2:CONNECT<text>resultcode
isgivenuponenteringonline
datastate.Dialtonedetection
reportingisenabled,andbusy
detectionreportingisdisabled.
3:CONNECT<text>resultcode
isgivenuponenteringonline
datastate.Dialtonedetection
reportingisdisabled,andbusy
detectionreportingisenabled.
4:CONNECT<text>resultcode
isgivenuponenteringonline
datastate.Dialtoneandbusy
detectionreportingareboth
enabled.
&C &C
&CRLSDBehavior&C &C
&C[<value>]<value>
0:RLSDisalwaysON.
1:RLSDfollowsthestateofthe
carrier.
&D &D
&DDTRBehavior&D &D
&D[<value>]<value>
0:ModemignoresDTR.
1:Uponanon-to-offtransition
ofDTR,themodementersonline
commandstateandissuesan
OKresultcode;thecallremains
connected.
2:Uponanon-toofftransition
ofDTR,themodeminstructsthe
underlyingmodemtoperform
anorderlycleardownofthecall.
Thedispositionofanydatainthe
modempendingtransmissionto
theremotemodemiscontrolled
bythe+ETBMparameter;
otherwise,thisdataissent
beforethecalliscleared,unless
theremotemodemclearsthe
callrst(inwhichcasepending
dataisdiscarded).Themodem
disconnectsfromtheline.
Chapter2.Usingyourcomputer55