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PIN (Personal Identity Number): Four to eight digital numbers SIM card security
code; allows access to the carrier's network.
Rx: Shorthand for Reception.
SIM (Subscriber Identity Module): A small card that contains key mobile device
identification, subscription and contact information.
SMS (Short Messaging Service): Allows text messages of up to 160 characters.
Tx: Shorthand for Transmission.
WCDMA (Wideband Code Division Multiple Access): Advanced EDGE that
supports 384kbps data flow. Most 3G networks use this standard; aka UMTS.
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Appendix B: Important Safety Information and Glossary
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