Appendix A AT Commands
53
Use this command to set the modem service class. The service class
determines if the modem is in data, FAX. The
+FCLASS
command is an
extended syntax command.
+FCLASS Values:
+FCLASS=0
Selects the modems data mode.
+FCLASS=1
Selects the modems class 1 fax mode.
+GCAP—Request Complete Capabilities List
Use this command to display a list of the soft modems capabilities. This is an
extended syntax command but it has only one form,
+GCAP
.
+GCAP Responses:
+FCLASS
T.class 1, +F
Class 1 FAX DCE control
+MS
+M commands
Modulation control:
+MS/+MR
+ES
+E commands
Error control:
+ES/+EB/+ER/+EFCS/+ETBM
+DS
+D commands
Data compression:
+DS/+DR
+GCI=<T.35_country_code>—Country of Installation
Use this command to set the modem country code. ITU-T Recommendation
T.35 defines the country codes and the country names.
+GMI—Manufacturer Identification
+GMI
is an extended syntax command. It returns the modem manufacturer
and either the OK or ERROR result code. The
+GMI=?
syntax returns an
ERROR result code. The other two forms return an OK result code.
+GMM—Modem Identification
This command is supported to ensure compatibility with communication
software that issues the
+GMM
command. The
+GMM
command returns
the string "H.324 video ready rev 1.0."
+GMR—Request Revision Information
This command returns the version of the modem code.