30 AT Command Set Summaries
6
AT Command Set Summaries
Basic AT Command Set
Command
Options
Function & Description
Ref.
A/
Re-execute the last command once
<any key>
Terminate current connection attempt when enter in
handshaking state.
+++
Escape sequence code, entered in data state, wait for
modem to return to command state.
All the Following Commands Require a “AT” Prefix
A
Go on-line in answer mode. (See also S39.2, S43.6)
Bn
Handshake option
B0 *
Select CCITT V.22 for 1200 bps
B1
Select Bell 212A for 1200 bps communication
Ds
Dial s (numbers and options) that follow (see also S38.0,
S35.4). The options of s are listed as follows:
0-9, #, *
Digits for dialing
P
Pulse dialing
T
Ton dialing
,
Pause for a time specified in S8. Remaining digits will be
dialed as in-band DTMF.
;
Return to command state after dialing
!
Hook flash
@
Wait for a 5 second silence before proceeding
R
Reverse handshake (go on-line in Answer mode)
W
Wait for second dial tone. Remaining digits will be dialed
as in-band DTMF
DL
Repeat last ATD command
DSn
n=0-3
Dial number stored in non-volatile RAM at location 'n'
En
Command mode local echo of keyboard commands
E0
Echo off
E1 *
Echo on
Hn
On/off hook control
H0 *
Hang up (on-hook) the modem or ISDN, same as 'ATH'
H1
Off hook the modem
In
Display inquired information
I0
Display numerical product code, same as 'ATI'
I1
Display product information and ROM checksum
I2
Display modem link status report
Ln
n=0-7
4 *
Speaker volume control. The higher the value, the higher
the volume
Mn
Speaker control
M0
Speaker always OFF
M1 *
Speaker OFF during dialing
M2
Speaker always ON
Summary of Contents for COMET 336
Page 1: ...Comet 336 User s Manual March 97 JiH5 02 06 2 7 0 11 80...
Page 9: ...2 Introduction...
Page 20: ...Installation 13...
Page 28: ...Basic Modem Operation 21...
Page 36: ...Special Functions 29...
Page 42: ...AT Command Set Summaries 35...
Page 48: ...Status Registers Result Codes 41...
Page 54: ...Fax Operation 47...