1. If some of my friends are not accessable via VoIP. (Router must be restarted etc.) it would be good if they would be informed via e-mail about this fact. It would allow them the check the devices locally. I do have neither the time nor the physical access to check them.
2. It would be also good if I - as the administrator - would receive a report on a daily basis if everything is Ok.
-- How many clients are logged in
-- was ist necessary to use a backup trunk
-- How many call were failed
etc.
It would allow me e.g. to check the prepaid trunks if money is OK.
because of the system of backup-trunks I am not informed by the user if anythink went wrong. They can call 99,9% of the time.