LCD | 2.3 | 2.3 | 2.4 | 3.66 | 3.7 | 4.3 colored | 7 colored |
Resolution | 132 x 64 | 132 x 64 | 132 x 64 | 240 x 120 | 360 x 160 | 480 x 272 | 800 x 480 |
LCD Backlight | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
VoIP account | 2 | 2 | 4 | 6 | 12 | 16 | 16 |
PoE | - | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Ethernet Port | 2 x RJ45 10/100M | 2 x RJ45 10/100M | 2 x RJ45 10/100M | 2 x RJ45 10/100/1000M | 2 x RJ45 10/100/1000M | 2 x RJ45 10/100/1000M | 2 x RJ45 10/100/1000M |
Line Key | 2 | 2 | 2 | 8 | 8 | 10 | 0 |
Memory Key | 2 | 2 | 2 | 4 context-sensitive | 4 context-sensitive | 27 (9 pages 3 keys) | 29 touch keys |
Soft Key | 4 | 4 | 4 | 4 | 4 | 4 | 0 |
Expansion Module | X | X | X | ✓ (EXP20) | ✓ (EXP43) | ✓ (EXP40) | ✓ (EXP40) |
HD Voice | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Wide-band Codecs | G.722, Opus | G.722, Opus | G.722, Opus | G.722, Opus | G.722, Opus | G.722, Opus | G.722 |
Bluetooth Adapter | X | X | X | ✓ (BT40) | ✓ (BT40) | ✓ (BT40) | ✓ (BT40) |
Wi-Fi Adapter | X | X | X | ✓ (WF40) | ✓ (WF40) | ✓ (WF40) | ✓ (WF40) |
USB Recording | X | ✓ | X | ✓ | ✓ | ✓ | ✓ |
