| Analogue Version | ||
| Power Supply | From the analogue telephone network | |
| Supply Voltage | 24 VDC to 65 VDC | |
| Supply Current | 20 mA DC to 100 mA DC | |
| Ringer Volume | – 80dB(A) at a distance of 1 m – 110dB(A) at a distance of 1 m (for external horn speaker) |
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| Dialing Method | DTMF mode in accordance with ITU-T recommendation Q.23. | |
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SIP Version |
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| Power Supply | PoE | |
| Power Consumption | -Idle:1.5W -Active:1.8W |
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| SIP Protocol | SIP 2.0 (RFC3261) | |
| Support Codec | G.711 A/U, G.722 8000/16000, G.723, G.729 | |
| Communication Type | Full duplex | |
| Ringer volume | – 90~95dB(A) at a distance of 1 m – 110dB(A) at a distance of 1 m (for external horn speaker) |
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4G Version |
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| Power Supply | 12V DC | |
| Power Consumption | -Idle:0.3W -Active: 1.5W |
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| Communication Type | Full duplex | |
| Ringer volume | 90~95dB(A) at a distance of 1 m | |
| Program Method | Remote programming by SMS | |
| Frequency | A version： – Dual-Band WCDMA/HSDPA 850/1900MHz – Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHzE version： – Dual-Band UMTS/HSDPA 900/2100MHz – Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHzJ version： – Dual-Band UMTS/HSDPA 850(800)/2100MHz – Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHz |
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