Table E-1. AT Command Set Description

Quick-Reference Summaries

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.

E-2Issue 2 November 1996