If you can’t make or receive calls on your phone, follow these steps to get back on track: What do I need to do? Tap ‘Learn More’ and follow the steps for the phone you’re using: I’m using an iPhone. Make sure your iPhone software is up to date. Here’s how: Open ‘Settings’. Tap ‘General’. Tap ‘Software Update’. If you have an iOS update available, tap ‘Install Now’. If you see ‘Download and Install’ instead, tap it to download the update, enter your passcode, then tap ‘Install Now’. Having issues updating? Check out this Apple Support article for more information. If you see ‘iOS is up to date’ - you’re good to go! If you’ve confirmed that your iPhone is updated, yet can’t make calls, follow these steps to get back on track: Enable 4G (LTE) and 4G (VoLTE) Calling. Before enabling 4G (VoLTE) Calling, 4G MUST be enabled. To check, simply follow the steps below: Open ‘Settings’. Tap ‘Mobile Service’. Tap ‘Mobile Data options’. If you have a 5G capable iPhone, tap ‘5G Auto’ or ‘5G On’. If