 |  |  |  | |
| Lines | 6 | 12 | 16 | 16 |
| Display | 2.7" graphical LCD | 2.7" graphical LCD | 4.3" color LCD | 7" color touchscreen |
| Line Key | 6 | 6 | 10 | 0 |
| Memory Key | 15 (3 pages of 5 keys) | 15 (3 pages of 5 keys) | 27 (3 pages of 9 keys) | 29 touch keys |
| Ethernet Ports | 2 x 10/100 | 2 x Gigabit | 2 x Gigabit | 2 x Gigabit |
| Integrated PoE | Yes | Yes | Yes | Yes |
| PSU included | No | No | No | No |
| USB | 1 x 2.0 | 1 x 2.0 | 1 x 2.0 | 1 x 2.0 |
| Bluetooth | Optional Adapter BT40 | Optional Adapter BT40 | Optional Adapter BT40 | Integrated |
| WiFi | Optional Adapter WF40 | Optional Adapter WF40 | Optional Adapter WF40 | Integrated |
| Expansion Module | No | No | 6 x EXP40 | 6 x EXP40 |