| Similarity | Rank | |
|---|---|---|
| DDI | 0.747 | 95912 |
| ACD | 0.740 | 80505 |
| CMI | 0.727 | 64367 |
| CEM | 0.719 | 76715 |
| CIM | 0.717 | 67614 |
| CSD | 0.713 | 70563 |
| GMS | 0.709 | 81951 |
| ESS | 0.703 | 68777 |
| CPE | 0.701 | 49267 |
| IMS | 0.696 | 36731 |
| Mitel | 0.694 | 89951 |
| Telephony | 0.690 | 74891 |
| ACI | 0.683 | 61346 |
| TRC | 0.682 | 66450 |
| SIP | 0.682 | 25114 |
| CMC | 0.682 | 39701 |
| CEP | 0.681 | 63959 |
| Sonus | 0.680 | 81698 |
| SCS | 0.680 | 54696 |
| Avaya | 0.679 | 52110 |
| OMS | 0.678 | 84818 |
| BCI | 0.676 | 77681 |
| Alcatel-Lucent | 0.676 | 66908 |
| CTL | 0.675 | 85963 |
| SEI | 0.674 | 59866 |