Works perfectly fine without much effort

I had to change only 2 things besides things like userkey and password:
– required packages to install on an Ubuntu 16.04.2 LTS: php-cli instead of php5-cli and php-sqlite3 instead of php5-sqlite
– because I use icinga: in /etc/nagios_sms.conf I had to set status-file to /var/lib/icinga/status.dat

Everything else I installed according to the README and it worked out of the box.

I’m excited!