For Raspberry Pi and BeagleBone Black, follow the FONA Tethering Setup Guide to install and configure the Point-to-Point Protocol daemon for Fona.
If you are already familiar with the tethering setup guide and installing ifacefailover on a fresh Raspberry Pi, in the next section you can execute the bin/raspberryPiInstall.sh script instead of the bin/install.sh script to automatically disable the kernel's use of the hardware serial connection, install ppp, and download the Fona ppp peer prior to installing the ifacefailover service.