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This doesn't guarantee the phone will always work correctly, as carrier settings might remain in the software.
This can include phones only distributed in certain countries, or with features that are not available on all carriers.
People also don't need to wait for a contract to expire to buy a new phone; they can remove the SIM (Subscriber Identification Module) card from an existing phone and insert it into a new one when they are ready for a replacement.
Most carriers on the CDMA network do not, as of 2012, use card-enabled phones; instead, subscriber information is stored in the cell phone's memory, which means it cannot be transferred to another phone.
The CDMA equivalent of the SIM card — the R-UIM — is used in some parts of Asia, but it's not likely to spread more widely.
Most carriers only supply service to a particular country or area; when traveling outside the coverage zone, the mobile phone user will have to "roam" on another carrier's network, which often comes with a high fee.
To avoid roaming fees, a person can buy a SIM card from a local carrier at his destination and insert it, preserving all his existing phone settings but getting a new number and a local calling plan.
Consumers concerned about specific features may want to check with a carrier to see if they are available on unlocked cell phones.
In addition, such phones tend to be more expensive.
In addition to less expensive calling rates, this provides the added benefit of having a local number while in the area.Tags: Adult Dating, affair dating, sex dating