User Manual

Table Of Contents
Appendix A
Modem AT Commands
31
Xircom Inc. Mini PCI User’s Guide
This command displays one or more lines of information text, in a standard format, describing
the basic capabilities of the modem. This allows a software package to determine which groups
of extended-syntax commands the modem supports. The response may contain one or more of
the following responses:
+CGSM
GSM (+C) commands.
+DS
Data Compression (+D) commands.
+ES
Error Control (+E) commands.
+FCLASS
Fax (+F) commands.
+MS
Modulation Control (+M) commands.
+W
Wireless (+W) commands.
+GCAP=? may be used to determine whether the modem supports the +GCAP command: an OK
response indicates support, ERROR indicates non-implementation.
+GCI Country of Installation
Syntax:
AT+GCI=<T.35 code>
AT+GCI?
AT+GCI=?
This command configures the modem for the country of use, selecting operational parameters
and ensuring conformity to the requirements of the selected country's telephone network. The
+GCI parameter may only be changed when the modem is in an idle state.
Note 1:
The Xircom CountrySelect utility is recommended for setting country parameters for
modem calls. The CountrySelect utility is accessible after installation at Start, Programs, Xircom
Utilities.
Note 2:
To determine what countries are supported by your Xircom modem product, run the
Xircom CountrySelect utility using Start, Run, Xircom Utilities, CountrySelect, or use the
command AT+CGI=?. The AT+CGI=? command will respond with the T.35 codes for the
countries supported. The list of <T.35> codes below includes countries supported by this
product at time of publication, but not all countries listed are supported by this product.