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56K V.92 Data, Fax, and Voice Chipset
72 Intel Confidential Programmer’s Guide
5. FAX CLASS 1 AT COMMANDS
The 56K FastPath family implements the EIA-578 data/fax Class 1 AT command set standard. This
AT command set allows a DTE (with Class 1 communication software) and a MD566X–based
modem to communicate with Group 3 fax machines. In addition, these chipsets provide fax identity
and test commands. Fax identity commands are described in Table 5-1; all other fax AT commands
are provided in Table 5-3 on page 76. This programmer’s guide should be used with the Class 1
Fax Application Note and the specifications for EIA/TIA-578, ITU-T T.30, and T.4. The Intel
Class 1 Fax Application Note shows several examples of how to use the fax AT commands and
how to originate and answer a fax call.
5.1 Fax Identity Commands
The fax identity commands are AT+FMFR?, AT+FMDL?, AT+FMI?, AT+FMM?, AT+FMR?,
and AT+FREV?. These commands respond back with modem manufacturer, product model, and
product revision information.
Table 5-1. Fax Identity Command Descriptions
Command Default Description
+FMFR?/+FMI? none
Identifies Modem Manufacturer: This command causes the DCE to send a
message to the DTE indicating the DCE manufacturer. This command is identi-
cal to AT+GMI?.
AT+FMFR?
Intel Corporation
OK
Note: The DTE manufacturer name can be changed with the firmware
configuration utility.
+FMDL?/+FMM? none
Identifies Product Model: This command causes the DCE to report the mo-
dem chipset name. This command is identical to ATI3 and AT+GMM?.
AT+FMDL?
MD56xx
OK
The modem responds with ‘MD566X’ for all chipsets that support V.42/MNP pro-
tocols.