User Manual

Table Of Contents
Appendix A
Modem AT Commands
25
Xircom Inc. Mini PCI User’s Guide
Xn Result Code Set/Call Progress Option
The ATXn command, where n represents 0-4, controls how the modem responds to dial tone and
busy signals and how it displays CONNECT result codes. The options available to specify with
the ATXn command are:
X0
Result codes 0-4 enabled. Busy detect and dial tone detect disabled.
X1
Result codes 0-5, and 10 enabled. Busy detect and dial tone detect disabled.
X2
Result codes 0-6, and 10 enabled. Busy detect disabled and dial tone detect enabled.
X3
Result codes 0-5, 7, and 10 enabled. Busy detect enabled and dial tone detect disabled.
X4
Result codes 0-7, and 10 enabled. Busy detect and dial tone detect enabled.
Caution: Some countries do not allow busy detect or dial tone detect to be disabled.
Yn Long Space Disconnect Option
The ATYn command, where n represents 0 or 1, determines whether or not the modem will
disconnect a call when it receives a long space (1.6 seconds Break) signal during a V.22bis
connection.
Y0
Disables the long space disconnect facility (supported for backward compatibility
reference only).
Y1 Enables the long space disconnect facility (
not supported
).
Zn Recall Stored Profile
The ATZn command, where n represents 0, disconnects any call that is currently in progress and
reloads the user configuration profile stored in nonvolatile memory as the active configuration
profile.
Z0
Disconnect and reload the profile contained in storage location 0 as the active
configuration profile.
&Bn V.32 Automatic Retrain Options
The Xircom modem always retrains. The automatic retrain feature cannot be disabled.
&B0
Disables the V.32 automatic retrain capability (not supported).
&B1
Enables the V.32 automatic retrain capability (supported for backward
compatibility only).