| Similarity | Rank | |
|---|---|---|
| VoIP | 0.897 | 13975 |
| VOIP | 0.888 | 38302 |
| IP-based | 0.882 | 68683 |
| telecommunication | 0.860 | 30601 |
| PBX | 0.856 | 33153 |
| Telephony | 0.854 | 74891 |
| PSTN | 0.854 | 70140 |
| fixed-line | 0.827 | 97719 |
| ISDN | 0.826 | 57455 |
| telecommunications | 0.820 | 12641 |
| wireless | 0.817 | 3977 |
| telecom | 0.809 | 17401 |
| trunking | 0.807 | 85801 |
| broadband | 0.798 | 7874 |
| IPTV | 0.796 | 42631 |
| backhaul | 0.796 | 68321 |
| conferencing | 0.796 | 18899 |
| wireline | 0.796 | 70032 |
| videoconferencing | 0.792 | 53227 |
| landline | 0.790 | 30616 |
| telco | 0.788 | 53535 |
| GPRS | 0.785 | 41744 |
| teleconferencing | 0.781 | 78138 |
| WiMAX | 0.778 | 52149 |
| UMTS | 0.777 | 75288 |