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3CX Phone System for Windows System for Windows
Page 67
14. Fax server
Introduction
Note: This feature is not present in the free edition of 3CX Phone System
3CX Phone System includes a fax server that allows the whole network to send and
receive faxes. The 3CX fax server is based on the T38 standard and requires a
compatible T38 VOIP gateway. It is possible to use a VoIP provider also, however in
many cases the T38 implementation is not correct and therefore we can not support this
configuration.
Note that to use fax you must use a supported gateway and it must be configured
according to our configuration guides, so that fax reception is enabled.
Sending faxes overview
Faxes are sent using the fax client built into all Microsoft Windows versions. The
Microsoft fax client is feature rich and seamlessly integrated into Microsoft Office and
Windows.
For all network clients to send faxes via Microsoft Fax, you will to need to install the
network fax server component of Windows 2003 / 2008 server. 3CX Fax Server
integrates with the Microsoft Network Fax server service by installing a T38 fax driver.
This T38 fax driver
talks to the 3CX Fax server which sends out the fax via the VOIP
Gateway or VOIP provider.
Receiving faxes overview
The receiving of faxes is completely handled by 3CX Fax Server. Faxes are forwarded to
the 3CX Fax Server which receives the fax, converts it to PDF and then emails the fax to
the configured email address. You will need to dedicate a DID or line to fax and route all
calls on this line to the 3CX Fax Server extension.
Fax receiving configuration
To receive faxes, you have to configure one of the lines or DID’s (if you don’t want to
dedicate a line) on your VOIP Gateway to be a fax line, and forward all calls on this line to
the Fax server extension. The Fax server will then receive the fax and forward the fax as
an email.