Make calls using Voice over LTE (VoLTE)

You can make wideband, high-quality phone calls with VoLTE on your iPhone 6 or later. To make these calls, both phones need to work with VoLTE.

Check your carrier and location

Whether you can use VoLTE depends on a few things:

  • Your location, your account with your carrier, and the model of your phone
  • The carrier, carrier account, location, and phone model of the person you're speaking with on the call

Some carriers support VoLTE only in certain cities or area codes. Contact your carrier to ask about your area and account. 

You can check Wireless carrier support and features for iPhone to see if your carrier supports VoLTE.

Turn on VoLTE

Some carriers turn on this feature by default. To find out if VoLTE is on, go to Settings > Cellular > Enable LTE. If Voice & Data is off, tap it. This turns on VoLTE.

If you see an error message

When you try to turn on VoLTE, a message might say: “Cannot Activate LTE Calls. To enable LTE Calls on this account, contact your carrier.” This can happen with some account types, including business lines, on some carriers. Please contact your carrier for help.

You might see a message that says to insert a new SIM card. This can happen with older SIM cards, or a micro-SIM card that's cut down to the size of a nano-SIM card. You might need a new SIM card to use VoLTE. Contact your carrier.

Get help with VoLTE call issues

If calls drop frequently or call quality is poor when using VoLTE, try turning off VoLTE. If calls improve with VoLTE off, get help from your carrier.

To turn off VoLTE, tap Settings > Cellular > Enable LTE and tap Data Only.

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