Requirements a webserver with activated PHP (apache, nginx or whatever) – PHP 7.x is ok Extension of hbmonitor – we log if a call is ended (I think it’s better as start) Please check permissions for wr iting the logfile in target folder ! Call this script with crontab for everyday use. Put this file in /etc/cron.daily/ and add attribute: chmod +x /etc/cron.daily/lastheard Call the website with http://YOUR_HOST/log.php it runs with a refresh/reload time of 30sec, change the script for other timeset. Thank you, Heiko DL1BZ, who shared the lastheard code.