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E-2 Issue 2 November 1996
Table E-1. AT Command Set
Command Description
AT Command prefix — precedes most commands.
A Answer an incoming call.
A/ Repeat the last command line.
D Enter originate mode and dial number that follows.
E0 Inhibit command state echo.
E1 Enable command state echo.
H0 Go on-hook (hang up).
H1 Accepted but causes no action.
I0 Returns decimal number 249 to data terminal.
I1 Returns ROM checksum as two 4-digit hexadecimal
numbers.
I2 Returns OK.
0 Return to on-line mode.
Q0 Enable display of result codes.
Q1 Disable display of result codes.
Sr Set pointer to S-register r.
Sr=n Set S-register r to value n.
Sr? Display value stored in S-register r.
V0 Display short form (numeric) result codes.
V1 Display verbose form (text) result codes.
X0 Enables features of result codes 0-4.
X1 Enables features of result codes 0-5, 10-12, 14.
X2 Enables features of result codes 0-5, 10-12, 14.
X3 Enables features of result codes 0-5, 7, 10-12, 14.
X4 Enables features of result codes 0-5, 7, 10-12, 14.
Z0 Reset and recall stored configuration profile 0.
Z1 Reset and recall stored configuration profile 1.
&C0 Maintain DCD circuit in ON state.
&C1 DCD circuit operates according to EIA/TIA-574
specification.