At https://t1mr.com https://t1mr.com we don't use SMS for notification, it's too unreliable. Besides delivery issues, there are benefits if the monitor knows if

At https://t1mr.com https://t1mr.com we don't use SMS for notification, it's too unreliable. Besides delivery issues, there are benefits if the monitor knows if someone has really seen the notification - we know when somebody answers a call, but we can't know if he has actually seen the SMS.