Alerts from some services which I manage are sent to a slack channel, as well as alerts/alarms from systems like datadog. There exists a bot which will notify

Alerts from some services which I manage are sent to a slack channel, as well as alerts/alarms from systems like datadog. There exists a bot which will notify an on-call engineer to examine the channel, via a phone-call - This uses a custom scripting language to handle decisions and twilios API to trigger phone-calls. (Hard to be on-call if you can't get woken up by things breaking; slack messages are too easy to ignore.)