| Similarity | Rank | |
|---|---|---|
| VoIP | 0.885 | 13975 |
| VOIP | 0.864 | 38302 |
| telephony | 0.854 | 28130 |
| PBX | 0.845 | 33153 |
| Conferencing | 0.829 | 59393 |
| Wireless | 0.821 | 10281 |
| Messaging | 0.821 | 33969 |
| Mitel | 0.820 | 89951 |
| PSTN | 0.814 | 70140 |
| ISDN | 0.807 | 57455 |
| Telecommunications | 0.804 | 25443 |
| IP-based | 0.802 | 68683 |
| Telecommunication | 0.801 | 60259 |
| Connectivity | 0.797 | 41516 |
| Avaya | 0.788 | 52110 |
| Telco | 0.787 | 80757 |
| Multicast | 0.787 | 92132 |
| Broadband | 0.785 | 22327 |
| Modem | 0.783 | 61947 |
| Networks | 0.781 | 12921 |
| Voicemail | 0.780 | 85444 |
| Routing | 0.779 | 44001 |
| Ethernet | 0.777 | 14958 |
| SIP | 0.777 | 25114 |
| WLAN | 0.776 | 52152 |