Apple® iPhone® 4s - Allow / Deny Data Roaming

Checking your data roaming settings can be helpful, especially if you're traveling internationally and have no network connection or can't send / receive email, text, pics or videos.

Caution Enabling data roaming may incur roaming charges.

  1. From the Home screen, navigate: Settings Settings icon > Cellular > Roaming.
  2. Ensure the Voice Roaming and Data Roaming switches are turned on Switch On.
  3. Tap the International CDMA switch to turn on Switch On or off Switch Off.
    Note Turning International CDMA on or off is only an option if the SIM card included with your iPhone 4s is installed and active.