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Your phone is designed to enter global roamingmode automatically when you activate your Sprint Worldwideservice, meaning that it should automatically connect to anappropriate CDMA network or GSM/UMTS network when youtravel. You may also set global roaming options through thesettings menu.
Accordingly, how do I turn off CDMA roaming?
From a Home screen, navigate: Settings > Cellular> Cellular Data Options. Tap the Voice Roaming switch toturn on or off . Voice Roaming must be on forthe Data Roaming and International CDMA options to beavailable. To enable Data Roaming, tap the DataRoaming switch to turn on.
Similarly, you may ask, what is roaming in network?
In more technical terms, roaming refers to theability for a cellular customer to automatically make and receivevoice calls, send and receive data, or access other services,including home data services, when travelling outside thegeographical coverage area of the home network, by means ofusing a visited network.
It means that your phone receives a cellsignal whenever you're outside your cell phone carrier'soperating area. In that case, your phone is roaming.Roaming sounds handy, but there's a catch: It almostalways involves a surcharge for using another cellularservice — an unpleasant surcharge.