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U-90E Data/Fax Modem
If a remote telephone ring was detected when dialing.
The speed, protocol, and error control/data compression method used.
If an incoming ring was detected.
ATXn
Result codes can originate from any of eight result code sets. The
command lets
you choose which set of result codes your modem can use. By default, your modem uses
ATX5
result codes equivalent to the
command.
For more information on result code options refer to the chapter AT Command Set
Summaries.
4.3.2 Viewing S Register Values
Status registers (or "S-registers") contain values that determine the modem's operating
AT
characteristics. Whenever you send an
command to your modem, you are actually
changing the value of an S-register.
You can use the Sr? command to view the value of S-register 'r'. For example, to view the
ATS0
value of S-register S0, which controls auto-answering, type
? and press Enter. The
modem responds with a three-digit character showing the value of this register, followed
by OK. A value of 002, for example, means your modem will auto-answer incoming calls
after the second ring.
Some S-registers are bit mapped. For these registers, you can use the Sr.b? command to
read their values.
ATS35.7?
For example, to read the value of S-register S35, bit 7, type
and press Enter.
The modem responds with an appropriate value, followed by OK. For more information on
S-registers refer to the chapter Status Registers.
4.3.3 Changing S Register Values
ATS0=n
You can use the
command to change the value of an S-register.
Basic Modem Operation
4-7
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