| Model | Voice channels | Interfaces | Physical interfaces | Picture |
| W01PRI | 30 | 1 PRI ISDN port | 5 x RJ-45 10/100/1000 Mbps | |
| W02PRI | 60 | 2 PRI ISDN ports | ||
| W02BRI | 4 | 2 BRI ISDN ports | 2 x RJ-45 10/100Mbps | |
| W04BRI | 8 | 4 BRI ISDN ports | ||
| W02FXS | 2 | 2 RJ11 connectors | 2 x RJ-45 10/100Mbps |
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| W04FXS | 4 | 4 RJ11 connectors max cable length=1 km | 2 x RJ-45 10/100Mbps |
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| W24FXS | 24 | 24 RJ11 + 1 RJ21 connectors max cable length=5 km | 1 x RJ-45 10/100Mbps |
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| W04FXO | 4 | 4 RJ11 connectors | 2 x RJ-45 10/100Mbps |
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| DaySaver | 1 | 1 SIM slot | 1 x RJ-45 10/100Mbps |
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| Model | PoE | External power supply | Max Power Consumption | Operating t° | Physical Dimensions | Features |
| W01PRI W02PRI | n/a | 110-240V, 50-60Hz, 1.8A | 19W | 0°C~40°C, Humidity: Up to 85%, non-cond. | 440 x 44 x 195 mm 3000 g | |
| W02BRI W04BRI | 802.3af, class 0 | 12 VDC, 1.5A | 12,95W | 0°C~40°C, Humidity: Up to 85%, non-cond. | 220 x 49 x 176 mm 458 g | |
| W02FXS | 802.3af, class 0 | 12 VDC, 1.5A | 5,3W | 0°C~45°C, Humidity: Up to 90%, non-cond. | 195 x 34 x 133 mm 638 g | TLS/ SRTP support; Differentiated ringtones for internal / external call classes |
| W04FXS W04FXO | 802.3af, class 3 | 12VDC, 1.5A | 12W | 0°C~45°C, Humidity: 10~90%, non-cond. | 190 x 40 x 135 mm 340 g | |
| W24FXS | n/a | 100-240V, 50-60Hz | 36W | 0°C~45°C, Humidity: 10~90%, non-cond. | 440 x 44 x 230 mm 3000 g | Flash Hook TLS/ SRTP support; |
| DaySaver | 802.3af, class 0 | 12VDC 1,5A | 8W | 0°C~40°C, Humidity: 5~90%, non-cond. | 143 x 25 x 88 mm 362 g | Support of SMS (coming soon); LAN/WAN; 3G/4G/LTE |