GSM

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GSM

Cingular uses GSM technology for voice service in all its markets today. They started transitioning from old TDMA and AMPS technologies in 2002. Click above to read about GSM, from Wikipedia.

If the link above is no longer working please feel free to update it or find another link from another source.


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GSM Network Codes

The GSM Network Codes list is a very complete reference of the different codes you can enter in your phone to perform various network-level functions. Click the link above to see the codes.

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