At Command Set Summaries; Basic At Command Set - ZyXEL Communications Comet 3356P User Manual

4

AT Command Set Summaries

Basic AT Command Set

Command Options
A/
<any
key>
All the following commands require an "AT" prefix
A
Bn
B0
B1 *
B2
B3
B15
B16
Dn
L
P
R
S=n
T
W
,
!
@
;
En
E0
E1 *
Hn
H0 *
H1
Mn
M0
M1 *
Function & Description
Re-execute the last command string
Terminate the current connection attempt when entered in handshaking
state
Go off-hook and attempt to establish a connection without waiting for a
ring
Line modulation options
Select V.22 mode for 1200 bps connection
Select Bell 212A for 1200 bps connection
Select V.23 1200 bps for receiving, 75 bps for transmitting in originate
mode; 75 bps
for receiving and 1200 bps for transmitting in answer mode
Select V.23 75 bps for receiving, 1200 bps for transmitting in originate
mode; 1200 bps for receiving and 75 bps for transmitting in answer mode
Select V.21 for 300 bps connection
Select Bell 103 for 300 bps connection
Dial command, beginning the dialing sequence. The string "n" (telephone
number and modifiers) listed as follows is entered after the "D"
command
Re-dial last number. Should be the first character following ATD,
ignored otherwise
Pulse dial.
Reverse dial. Originate call in answer mode (go on-line in answer mode)
Dial the phone number stored in NVRAM at location "n" (n=0, 1, 2, 3)
DTMF tone dial.
Wait for second dial tone. The modem waits for the second dial tone
before processing the dial string
Pause. Cause the modem to pause for a time before processing the next
character in the dial string (specified by S8 register)
Hook Flash (for call transfer). Cause the modem to go on-hook for 0.5
second then return to off-hook
Wait for 5 seconds of silence after dialing number
Return to command state after dialing a number without disconnecting
the call
AT command echo options
Echo disabled
Echo enabled
Switch-hook control
Modem goes on-hook
Modem goes off-hook
Speaker control
Speaker always off
Speaker on until carrier present
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AT Command Set Summaries 13