2
votes
2answers
5k views

How do push notifications work from a networking point of view?

I know the data antennas (3G, WiFi, etc.) power down to save battery, but push notifications still seem to come almost immediately. My iPhone and iPad will chime before the email shows up on my ...
2
votes
1answer
849 views

How do I enable Wi-Fi-only email push?

Is it possible to get iOS's email push feature to work only when I'm on Wi-Fi?
3
votes
2answers
4k views

How do FaceTime and Push Notifications work on wifi-only iOS devices?

Simple curiosity question. How does FaceTime and Push Notifications work on Wifi only devices? I mean does the WiFi stays always on to achieve a continuous connection to Apple's servers? I have ...