a little more about 2G

Why GSM ?

The GSM study group aimed to provide the followings through the GSM:

1. Improved spectrum efficiency.
2. International roaming.
3. Low-cost mobile sets and base stations (BSs).
4. High-quality speech.
5. Compatibility with Integrated Services Digital Network (ISDN) and other telephone company services.
6. Support for new services.

GSM Evolution