Notification priorities and quiet hoursPriorities and quiet hours

Priority sets how hard a notification tries to reach someone. Every priority is delivered equally fast.

1. -2

   Silent

   No sound and no banner. It waits in the inbox.

2. -1

   Quiet

   A banner without a sound.

3. 0

   Normal

   A banner and the sender's sound. The default.

4. 1

   High

   Breaks through Focus and quiet hours.

5. 2

   Emergency

   Repeats until someone acknowledges it, then escalates to the next person on call.

Quiet hours belong to the recipient and are set on each device. During them, priority 0 and below arrive silently and wait in the inbox. Priority 1 and 2 still ring, so save them for alerts that justify waking someone.