Technology

From HowardForums Wiki

T-Mobile USA uses GSM technology. T-Mobile uses the 1900 Mhz frequency for their GSM implementation. Roaming partners in North America may use 1900 Mhz frequency and also use 850 Mhz frequency. Like other GSM operators T-Mobile uses a SIM card to store account data and also can store contacts.

For data T-Mobile USA uses GPRS and EDGE. GSM and GPRS are considered 2nd generation mobile technology. EDGE is considered a 2.5 G technology. T-Mobile USA will also be implementing a 3rd generation mobile technology. This will likely be a W-CDMA variant such as HSDPA, HSUPA, UMTS or like variants.