Emergency alerts have no off switch. Emergency handling can't be switched off.
Why it works this way
Most notifications in Doorkeep are yours to tune. Emergencies are the exception. A genuine emergency, whether a life-safety situation or a serious property problem, is exactly the moment you don't want a notification setting to be the reason you missed it, so there is no setting for it.
Go to Settings, then Notifications.
Under Critical Alerts, Emergency Interactions is marked Always enabled, with no switch.
What still decides whether a text arrives
Text messages must be on for your account. If they are off, the same page says so, and no call texts are sent, emergencies included.
Who is on your Call List. Emergency texts go to the people on your Call List. On a 9-1-1 call, the account owner is texted too.
What the caller tells Doorkeep. On a 9-1-1 call, the alert goes out once Doorkeep has the caller's name, unit, or property. Every call is still recorded and summarized.
What this means on a call
When Doorkeep detects an emergency, it detects, connects, and documents. On a call about danger to a person, it recommends calling 9-1-1 and does not connect the caller to anyone. On other emergencies and on situations from your escalation list, it rings your Call List. If nobody picks up, it takes a detailed message. It never gives the caller safety instructions or tells them what to do. See How Doorkeep handles emergencies for the full flow.
What you control
You can't turn off emergency alerts, but you control who is rung through your Call List and which property situations ring it through your escalation list.
Important Calls and the other alerts on the Notifications page stay yours to turn on or off.