Sample Configuration 3 - SimpleTech STI-FAX/28.8 User Manual

Sample Configuration 3

If your software does not support hardware flow control, but
you would like to transfer files with a protocol like XMODEM or
ZMODEM, you should try configuring your modem as follows:
AT &F0 &C1 &D2 &K0 &Q0 \J1 <Enter>.
The first three commands are the same as described in the first
example. &K0 turns off all flow control. &Q0 specifies a direct
connection, which is a connection without flow control, data
compression, or error correction. \J1 forces the data terminal
equipment (DTE) rate to match the data communication equip-
ment (DCE) rate, which is required when all flow control is
disabled. In this case, you must set your terminal speed to match
the line speed, e.g., 14.4 Kbps.
This configuration is not reliable for high-speed connections
unless transferring files with newer XMODEM or ZMODEM
protocols: XMODEM and ZMODEM protocols have error
correction built into them. Also, to ensure that file transfer is
reliable, make sure that the protocol does not use packet sizes
that are too large.
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