With this requester you can configure the timeouts that STFax uses in the modem handling.
The default values should work without problems and, if your modem behaves erratically, you can alter them.
Above all, the Connect and Answer timeouts are the most likely for potential change.
NOTE: the "Modem" timeout is a bit special. It is the delay inserted by STFax between two consecutive commands to the modem and it is expressed in 1/50th of second. You can set it to 0 if your modem is able to handle incoming commands at full speed, otherwise try increasing it. You should increase it if you notice that STFax tries to reset the modem many times when you load it and keeps the busy pointer too much...