| Similarity | Rank | |
|---|---|---|
| Ethernet | 0.834 | 14958 |
| IP-based | 0.828 | 68683 |
| backhaul | 0.827 | 68321 |
| PSTN | 0.816 | 70140 |
| MPLS | 0.811 | 55681 |
| ISDN | 0.810 | 57455 |
| telephony | 0.807 | 28130 |
| cabling | 0.799 | 30416 |
| PBX | 0.797 | 33153 |
| routers | 0.794 | 22931 |
| SIP | 0.794 | 25114 |
| LANs | 0.787 | 83650 |
| VoIP | 0.785 | 13975 |
| VLAN | 0.775 | 65730 |
| VOIP | 0.772 | 38302 |
| TDM | 0.767 | 74446 |
| interconnect | 0.764 | 44955 |
| WLAN | 0.762 | 52152 |
| ADSL | 0.759 | 42834 |
| Gigabit | 0.759 | 52795 |
| wireline | 0.757 | 70032 |
| PoE | 0.757 | 77844 |
| WAN | 0.753 | 36010 |
| Routers | 0.753 | 84458 |
| Telephony | 0.749 | 74891 |