You can activate a new or used iPhone for use with a cellular service provider in a few steps. Here's how to activate any ...

Your iPhone might go straight to voicemail on incoming calls for a number of reasons, including your Do Not Disturb settings or several other issues.

What does it mean if your iPhone is locked? If your iPhone is carrier-locked, it's only going to work with the cellular provider that locked it. However, if your iPhone isn't locked, you'll be able to ...