| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| isdn voip gateway | 0.35 | 0.7 | 1489 | 69 |
| isdn voip | 1.69 | 1 | 9514 | 52 |
| isdn voip adapter | 1.13 | 0.3 | 6928 | 76 |
| isdn voip converter | 0.03 | 1 | 3850 | 42 |
| isdn telefonanlage an voip anschluss | 1.14 | 0.4 | 9398 | 22 |
| isdn vs voip | 0.93 | 0.6 | 5572 | 96 |
| pstn vs isdn vs voip | 1.14 | 0.1 | 2154 | 32 |
| voip anbieter flatrate isdn | 0.3 | 0.3 | 428 | 45 |
