With Wi-Fi disabled on iPhone 4 with iOS7, or when out of range of a signal, I only receive text messages from other iPhone users as iMessage posts once the Wi-Fi is enabled, or am within range of a ...
Is there a way to rig iMessage so it receives (and, I guess,sends) messages only when connected via WiFi and not when connected via the carrier's data plan?
I am trying to iMessage an iPhone 4S using its phone number. When I press send, the sending progress runs to ~90% and pauses. Then, after about 1-2 minutes, a red exclamation point appears. This ...