First ensure that you are sending a Class 2 or 2.0 fax. Class 1 faxes are too time-sensitive to be successfully redirected.
Incorrect flow control settings is a common cause for faxing glitches. Typically the problem is that modem server is set to Software (Xon/Xoff) flow control and the modem device is set to Hardware (RTS/CTS) flow control (or vice versa)
To correct this, you can change the flow control type on the modem server. The process for doing this will vary depending on the type of modem server.
23rd of November, 2009