17. Fax Server
Many attempts have been made to cleanly integrate Asterisk with faxing, with inconsistent results. For a long time, app_rxfax, available at www.soft-switch.org was the accepted convention. Unfortunately it is error prone and unreliable. Faxes often arrive piecemeal, or worse, not at all.
For that reason, we describe a more robust solution using IAXmodem here (see http://iaxmodem.sourceforge.net).
The IAXmodem application emulates a fax modem, which may be operated by a fax application of the administrator’s choosing. We’ll use the popular Hylafax. For simplicity and consistency, the installation platform will be the same Debian Linux and Asterisk 1.4 we have used for the other examples (see Appendix A, “Installation Instructions ...