1-20
!
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
En
AT command echo options
E0
Echo disabled
E1 *
Echo enabled
Hn
Switch-hook control
H0 *
Modem goes on-hook
H1
Modem goes off-hook
Mn
Speaker control
M0
Speaker always off
M1 *
Speaker on until carrier present
M2
Speaker always on
M3
Speaker off during dialing and on until
carrier present
Nn
Select negotiate handshake
N0
When originating or answering, handshake
only at the communication rate specified
by S37 register and “ATBn” and no
fallback
N1 *
When originating or answering, sta
handshaking only at the communicatio
standard specified by S37 register an
“ATBn” During handshake, fallback to
lower speed may occur.
On
Go on-line
O0
Return modem to a previously established
state (return to data mode).
O1
Begin a retrain sequence, then return to on
line state.
O3
Issue a rate re-negotiation, then return to on
line state.
P
Enable pulse dialing (Disabled in CTR 2
approved models)
Qn
Result code display options
Q0 *
Result code enabled
Q1
Result code disabled
T
Enable tone dialing
Vn
Result code form
V0
Display result code in numeric form (see
also the result code options table)
V1 *
Display result code in verbose (text) form
Wn
Select extended result code options
