Specifications
AT Command Set for L55 Platform 2003-11-21
Copyright Siemens AG 2003 All Rights Reserved Page 71 of 131
2.3.11 Fax commands
The following commands can be used for FAX transmission. If the ME is acting as a FAX modem to a
PC-based application, it is necessary to select the appropriate service class (FAX class) provided by
the ME. The ME reports its FAX service class capabilities, both the current setting and the range of
services available, via the AT+FCLASS command.
Note: According to EIA/TIA-592-A, the Error Correcting Mode (ECM) should not be used when
sending FAXes over GSM.
+FCLASS parameter Service Class Reference, Standard
0 e.g. TIA/EIA-602 or ITU V.25ter
1 Service Class 1 EIA/TIA-578-A
2 Vendor-specific this document and EIA PN-2388 (draft)
The following FAX commands are dummy commands. Invoking these commands will not cause
ERROR result codes, but these commands have no functionality either:
Command Meaning
AT+FAA Auto Answer mode
AT+FECM Error Correction Mode control
AT+FLNFC Page Length format conversion
AT+FLPL Indicate document available for polling
AT+FMINSP Minimum Phase C speed
AT+FRBC Phase C data receive byte count
AT+FREL Phase C received EOL alignment
AT+FSPL Enable polling
AT+FTBC Phase C data transmit byte count
AT+FWDFC Page width format conversion
Table 2-9: List of dummy FAX commands










