| 2G → 3G Evolution & Convergence |
| TDMA |
| C-EDGE |
| W-CDMA |
| GSM |
| GPRS |
| EDGE |
|
|
|
| GSM MAP |
||
| Core Network |
||
|
|
|
| IMT |
||
| DS |
||
| cdma2000 |
| cdmaOne |
| 1xRTT |
| IMT MC |
| IS41
Core Network |
| 2001 |
| 2004 |
