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About the LTE options on your iPhone

The cellular-data options on your iPhone might vary based on your carrier's network.

If your carrier supports VoLTE

On your iPhone, go to Settings > Cellular > Cellular Data Options and tap Enable LTE or Settings > Mobile Data and tap Enable LTE. If your carrier supports Voice over LTE (VoLTE), you'll see these options:

ios12-iphone-x-settings-cellular-data-options-enable-lte

  • Off: Turns off LTE

  • Voice & Data: Allows voice calls and cellular-data use over LTE

  • Data Only: Allows cellular-data use, but not voice calls over LTE

If your carrier doesn't support VoLTE

If your carrier doesn't support VoLTE and is a GSM carrier, you'll see one of these options:

ios12-iphone-x-settings-voice-data-options-lte

  • LTE or 4G: Allows cellular-data use over the LTE or 4G network when available.

  • 3G: Allows cellular-data use over the 3G network when available.

  • 2G: Allows cellular-data use over the 2G network when available.

Depending on the wireless carrier, 4G can indicate either a UMTS or LTE connection. If your carrier doesn't support VoLTE and is a CDMA carrier, you'll only see an option to Enable LTE. This allows cellular-data use over the LTE network when available.

Learn more about cellular data networks.

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