Skip pagerduty. When I was oncall I carried a regular pager. Cost about $10 bucks a month, took 1 AA battery per month, very reliable, clipped onto my belt, and

Skip pagerduty. When I was oncall I carried a regular pager. Cost about $10 bucks a month, took 1 AA battery per month, very reliable, clipped onto my belt, and it gets service Everywhere. basements, underground garages, top of the towers. And it beeps VERY loudly.