Omni 56K Plus Series User’s Guide

Table 4-2 AT Command Sets Requiring an "AT" Prefix

COMMAND

OPTIONS

FUNCTION & DESCRIPTION

REF.

 

 

 

 

Sr?

 

Display value stored in S-register 'r'

 

 

 

 

 

T

 

Tone dial

S23.1

 

 

 

 

UPX

 

Download firmware to the Flash EPROM by using Xmodem

 

 

 

protocol.

 

 

 

 

 

Vn

 

Sets display type for Result Codes.

S23.6

 

 

 

 

 

V0

Display result code in numeric form. (See also S35.7 and the

 

 

 

result code table of 'ATXn')

 

 

V1 *

Display result code in verbose form.

 

 

 

 

 

Xn

n=0-7

Result code options, see the Options Table.

S23.3-5

 

5 *

 

 

 

 

 

 

Zn

n=0-2

Reset modem and set power-on profile.

S15.5-7

 

 

 

 

 

Zn

Reset modem and load user profile n (0-1).

 

 

 

 

 

 

Z2

Reset modem and load factory settings.

 

 

 

 

 

$

 

Basic command summary help

 

 

 

 

 

&$

 

Extended 'AT&' command summary help

 

 

 

 

 

*$

 

Extended 'AT*' command summary help

 

 

 

 

 

+++

 

Escape sequence code, entered in data state, wait for modem

 

 

 

to return to command state.

 

 

 

 

 

4.1.2 Extended AT& Command Sets

Table 4-3 Extended AT& Command Sets

COMMAND

OPTIONS

FUNCTION & DESCRIPTION

REF.

 

 

 

 

&Bn

 

Data rate, terminal-to-modem. (DTE/DCE)

S28.6

 

 

 

 

 

&B0

DTE rate follows connection rate. (See also S44.6)

 

 

 

 

 

 

&B1 *

DTE/DCE rate fixed at DTE setting (See also S18, S20, and

 

 

 

S44.6)

 

&Cn

 

Carrier Detect (CD) options

S21.4

 

 

 

 

 

&C0

CD always ON (See also S42.7)

 

 

 

 

 

 

&C1 *

CD tracks presence of carrier (See also S38.3, S42.7)

 

 

 

 

 

&Dn

 

Data Terminal Ready (DTR) options. (See also S25)

S21.6-7

 

 

 

 

 

&D0

Ignore DTR signal, assume DTR is always ON.

 

 

 

 

 

 

&D1

108.1, DTR OFF-ON transition causes dial of the default

 

 

 

number. (See also 'AT*Dn' and S48.4)

 

 

 

 

 

 

&D2 *

108.2, Data Terminal Ready, DTR OFF causes the modem to

 

 

 

hang up.

 

 

&D3

Same as &D2 but DTR OFF causes the modem to hang up and

 

 

 

reset from profile 0.

 

 

 

 

 

&F

 

Load factory settings to RAM as active configuration.

 

 

 

 

 

Command Sets

4-3