Hi Selintra,
back when you released a version which announced support of system monitoring and notification functions,
I enabled it at the time, both SMS and email enabled.
Now, sometime down the track, knowing I lose my VSP trunks occasionally I have realized I have never received a notification.
SMS I can understand.. as I had and still have no idea about the SMSC path.
From what I read this is unsupported down-under so understandably the blank field would suggest I should disable SMS notification.
That said I would love to see if it would be possible to support the likes of an SMS API as per MyNetFone..
https://www.mynetfone.com.au/residential-voip-solutions/features/mytext-sms/mytext-sms-api/The likes of this method would seem so much simpler than a PSTN SMS and from a VOIP server (asterisk) perspective more in line with its function !

Now for the email notification, I have set Monitor on some of my key trunks / VSP definitions
and sent the send to email address on the globals page, is there something I am missing ?
Glen