General DataComm 060A027-001, Installation & Operation Manual

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AT Command Set Operation AT Command Reference Tables
060R122-000 SpectraComm Dual V.34 Modem 4-5
Issue 15 Installation and Operation
D n
Dial This command, followed by the phone number to be dialed, directs the modem to go
off-hook and dial the number. Commands other than dial modifiers must not be
placed after the D command. Any command that is placed after the D is either
ignored or interpreted as a dial command modifier.
T
Selects the numbers to be tone dialed.
P
Selects the numbers to be pulse dialed (if permitted by country code.
Sn
Selects a stored phone number to be recalled and dialed. The modem's default
when the AT command DS is issued is to dial the phone number stored in cell 0. (
n =
0 to 9)
R
Switches modem operation to handshake in the answer mode when this command
appears as the last character in the dial string.
, or < Pauses dialing for a programmable length of time determined by S-Register 8.
Default is 2 seconds.
W Directs the dialer to wait for a dial tone before continuing the dial string.
@
Directs the dialer to wait for a quiet answer before continuing the dial string.
! Directs the dialer to place a 1/2 second hook-switch flash in the dial string.
;
Directs the dialer to return the modem to command mode.
:n
Directs the dialer to redial the attempted dial string up to n times if the modem does
not achieve data mode.
Ln Directs the dialer to dial phone cell
n if the modem fails to achieve data mode with the
current dial string.
\n Remote modem uses cell n for Security Callback.
A
Causes the DTMF A tone to be generated.
B Causes the DTMF B tone to be generated.
C
Causes the DTMF C tone to be generated.
D
Causes the DTMF D tone to be generated.
0 - 9
Tone or pulse dials the number. (A, B, C, and D are ignored in Pulse mode.)
J Performs MNP10 link negotiations at 1200 bps (this call only). See *H.
K
Enables power level adjustment during MNP10 link negotiation (this call only).
Refer to
)M
command.
&D n
DTR On-to-Off transition Controls the result of On-to-Off transitions of Data Terminal Ready.
&D0 Causes the modem to ignore Off transitions and forces internal DTR On.
&D1
Causes the modem to change to command mode when it senses an Off transition
during an established data link.
&D2
Causes the modem to recognize Off transitions of DTR and respond by hanging up.
&D3
Same as
&D2
, and also causes the modem to perform AT command
Z
.
%D n
DSR operation in test
mode Specifies whether Data Set Ready (DSR) will be On or Off during an ANALOOP test.
%D0
DSR will turn On whenever the modem is operating an ANALOOP test.
%D1 DSR forced Off when in an ANALOOP test.
E n
Local DTE echo Controls the status of local echo.
E0
Turns the local echo Off.
E1
Turns the local echo On.