Waking your phone

A phone that is asleep cannot check its mailbox. There are two ways to deal with that, and you choose.

Polling

Your phone wakes on the schedule under Settings › Cadence and checks the relay. Nothing about your phone is registered anywhere. The cost is battery and delay: mail waits until the next check.

Wake me when mail arrives

When this is on, the relay can ask Apple or Google to wake your phone the moment an envelope lands for it. The phone then checks its mailbox exactly as it would have anyway, and shows you the message itself.

What Apple or Google receive is a content-free wake: no sender, no text, no profile, not even that it is a message rather than a housekeeping wake. They know the phone runs Channel, and when it was woken. What the relay holds is one opaque id per profile against the phone's push token; the id tells it nothing about you.

• Chosen under Settings › Fetch new messages: Push, Every 15 minutes (the default), or Manually.
• Per profile, you can choose check only when I open. That profile never registers an id, so nothing about it reaches Apple or Google at all. A quieter profile cannot be made louder by the phone-wide switch.
• Turning it off deletes the ids at the relay immediately.

Contacts learn the id from your card when you pair. If you switch a profile off later, the next card they receive carries none, and they simply stop being able to wake you.

English is the reference text; any translation is a convenience. Help is stored on this phone and never contacts anyone.