Apple® iPhone® 4s - Voice Roaming

Caution Turning on voice roaming may incur roaming charges.

Note For specific information on using your phone while traveling internationally, access the International Trip Planner then click the Get Started button.

  1. From the Home screen, navigate: Settings Settings icon > Cellular > Cellular Data Options.
  2. Tap Roaming.
  3. Tap the Voice Roaming switch to turn on Switch On or off Switch Off.
    Note Voice Roaming must be on for the Data Roaming and International CDMA options to be available.
  4. Tap the International CDMA switch to turn on or off.
    Note CDMA is the primary wireless technology that Verizon Wireless uses to place and receive calls within the US and some global destinations.
    Note Turning off International CDMA while in another country may improve poor messaging or data performance.
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