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Command Options
I1
I2
I12
I13
I14
I15
Ln
n=0-7
4 *
Mn
M0
M1 *
M2
M3
Nn
n=0-7
5 *
O
O1
Qn
Q0
*
Q1
Q2
Sr.b=n
Sr.b?
Sr=n
AT Command Set Summary
Function & Description
'ATT'
Display product information and ROM
checksum
Display modem link status report
Display physical layer status
Display Channel response for V.34
V 90 capability report
V 90 power management report
Speaker volume control. The higher the
value, the higher the volume
Speaker control
Speaker always OFF
Speaker ON until call is answered
Speaker always ON
Speaker ON after the last digit is dialed
out and OFF when carrier is detected
Ring volume control.'N0' will disable the
audio ring function
Return to on-line state
Force modem to request a retrain
Result code displayed
Modem returns result code
Modem does not return result code
Modem returns result code but quiet after
answering on a RING (see also S42.2)
Set bit 'b' of S-register 'r' to value 'n'. 'n' is
a binary digit '0' or '1'
Display value of bit 'b' of S-register 'r'
Set S-register 'r' to value 'n'. 'n' must be a
U-90E Data/Fax Modem
Ref.
S24.5-7
S21.1-2
S24.1-3
S23.7
S40.1
5-3
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