Compaq Armada 1500 Service Manual Addendum page 28

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Addendum to Compaq Armada 1500
Maintenance and Service Guide
Table C-2, AT Commands,
Command
\Tn
\Vn
\Xn
&&C
&&L
&&R
+FCLASS
-Cn
%B
26
Continued
Description
Inactivity Timer. \Tn specifies the length of time (in minutes) that the modem will wait
before disconnecting when no data is sent or received. A setting of zero disables the timer.
Alternatively, this timer may be specified in register S30. Allowable range and default are
country-specific.
0: Inactivity timer disabled (default).
1-255:
Inactivity time in minutes.
*
MNP is a registered Trademark of Microcom
Protocol Result Code. Controls whether the string /ARQ is appended to the verbose
CONNECT message if a protocol is in use. May also be controlled with bit 1 of S95.
0: Disable protocol result code appended to DCE speed.
1: Enable protocol result code appended to DCE speed (default).
XON/XOFF Pass Through. When using XON/XOFF flow control, controls whether the flow
control characters are also sent to the remote modem.
0: Process flow control characters locally. (default)
1: Process flow control characters locally, and pass them through to the remote modem
so that they can process the characters. NOT SUPPORTED responds ERROR
Read from /Write to DSP Register.
&&C<loc>,<val>:
Write <val> to the DSP register at <loc>
&&C<loc>
Read from the DSP register at <loc>
Line to Line Loopback
Write to/Read from DSP RAM Location.
AT&&R<loc>,<val>:
Writes the value <val> to DSP RAM location <loc>
AT&&R<loc>:
Reads from location <loc>.
Service Class Selection. This command sets the modem for class n operation.
000: data mode (default)
001: FAX class 1
008: voice mode
Command options:
+FCLASS=0 Select data mode.
+FCLASS=1 Select Facsimile Class 1.
+FCLASS=8 Select voice mode.
+FCLASS? Causes the modem to display the current setting.
+FCLASS=? Causes the modem to display the classes it supports.
Data Calling Tone. Data Calling Tone is a tone of a certain frequency and cadence as
specified in V.25 which allows remote Data/FAX/Voice discrimination. The frequency is
1300 Hz with a cadence of .5 s on and 2 s off.
0: Disabled (default).
1: Enabled.
View Numbers in Blacklist. If blacklisting is in effect, this command displays the numbers
for which the last call attempted in the past two hours failed. The ERROR result code
appears in countries that do not require blacklisting.
Continued
Addendum 255318-001 to Guide 284820-001