| Label: | Orbit Records 8 95427 2 |
| Genre: | Electronic |
| Style: | Hard House |
| Format: | CD (Maxi-Single) |
| 1 | Ruf Mich An (Radio Mix) | 3:10 |
| 2 | Call Me Now (Radio Mix) | 3:10 |
| 3 | Ruf Mich An (Club Mix) | 5:31 |
| 4 | Ruf Mich An (BB INC Remix) » Remix: BB INC | 5:47 |
| 5 | Call Me Now (Club Mix) | 5:31 |
| Label: | Gang Go Music GG014 |
| Genre: | Electronic |
| Style: | Hard House |
| Format: | Vinyl (12") |
| A1 | Ruf (Mich An) (Club Mix) | |
| A2 | Ruf (Mich An) (Call Me Now) | |
| B1 | Ruf (Mich An) (BB Inc. Remix) » Remix: BB Inc. | |
| B2 | Ruf (Mich An) (Acapellas) |
| Label: | Big Mix SHT 3435-6 |
| Genre: | Electronic |
| Style: | Hard House |
| Format: | Vinyl (12") |
| A1 | Ruf Mich An (Call Me Now) (Club Mix) | 5:31 |
| A2 | Ruf Mich An (Call Me Now) (Club Mix 2) | 5:31 |
| B1 | Ruf Mich An (Call Me Now) (BB Inc. Remix) » Remix: BB Inc. | 5:47 |
| B2 | Ruf Mich An (Call Me Now) (Radio Mix) | 3:10 |
| Label: | Big Mix SHT 3435-1 |
| Genre: | Electronic |
| Style: | Hard House |
| Format: | CD (Single) |
| 1 | Ruf Mich An (Radio Mix) | 3:10 |
| 2 | Ruf Mich An (Bb Inc Remix) » Remix: BB Inc | 5:47 |