alt Hacker NewsBecause we don’t live in an ideal world.
Testing requires staff and you can be sure those parks are understaffed.
Best thing is to avoid them, next best thing is a cheap solution with low maintenance by the staff to notify as much people as possible.
Email wins.
Not a good solution but the best you will get for the price they are willing to pay
Things do break, so all alarms need periodic testing, whether they consist of email and/or something else.
Whether it breaks because a relay has corroded due to years of service in a chlorine-enriched environment, or because O365 is down, or because O365 tightened up on DMARC requirements: It needs tested.
And it's not a binary choice. This isn't the World Cup, the Super Bowl, or Highlander. There can be more than one.
The alarm system can wear a belt, and suspenders. It can send emails, and it can flash a bright light, and it can also sound an audible alarm.