Follow these steps to activate Google Voice on your mobile phone. Enter the following exactly as written, as if you are dialing someone:
| AT&T | *004*1GV# |
| Alltel | *71GV |
| Cellular South | *76GV |
| Criket | *74GV |
| MetroPCS | *74GV |
| nTelos | *71GV |
| Sprint | *38GV |
| T-Mobile | *004*1GV# |
| US Cellular | *74GV |
| Verizon | *71GV |