[teh_klev]

We just started using PagerDuty to deliver our Nagios alerts to landlines and mobile phones after losing confidence in Vodafone's pager network.

The other thing we like is the integration with HipChat to deliver alerts into our NOC chat room.

Overall we've been quite impressed....will be more impressed if you folks run into actual trouble but we still get our alerts :)

[ultrasaurus]

That's great to hear (HipChat integration is my possibly favourite feature).

We do occasionally post about trouble that we've survived, http://blog.pagerduty.com/2012/07/a-utc-leap-second-vs-derec... caused us some mild stress but no missed alerts.