Westermo GDW-11 - Manual (Page 150)

150 Fax commands 6615-2220
Fax class 2 commands
If the feature is supported, the commands +FDT, +FDR, +FET, +FPTS and +FK must be
used during call only.
The other commands, +FBOR, +FBUF, +FCQ, +FCR, +FDCC, +FDIS, +FLID and
+FPHCTO, cannot be used during call.
+FDT – Transmit Data
Description:
This command prefixes data transmission.
Syntax:
AT+FDT
Parameters:
No parameter
+FDR – Receive Data
Description:
This command initiates data reception.
Syntax:
AT+FDR
Parameters:
No parameter