Customer wishes to configure a fax modem for shared fax and data use.
One of the features of the Faximum fax server software is the ability to share a single phone line and modem with both data and fax traffic. As outlined below, this is a far more complex undertaking than might first appear and requires the careful cooperation between different components of your UNIX or Linux system. A.1 - The first issue is addressed by using lock files. Whenever an application is using the modem it creates a lock file in a known location that other applications can check for before trying to use the modem. In order to properly configure the Faximum fax software to respect the lock file protocol it is necessary to determine the name of the lock file used by your system for the port in question.