China Vandal Resistant Prison VoIP Telephone, Rugged Prisoner Visitation Telephone, Find details about China Vandal Resistant Telephone, Prison VoIP Telephone from Vandal Resistant Prison VoIP Telephone, Rugged Prisoner Visitation Telephone
Ambient conditions | |
Protection type | IP 66 as per EN60529 |
Operating temperature | -40°C to +70°C |
Storage temperature | -45°C to +85°C |
SIP Version | |
Power Supply | PoE or 12V DC |
Power Consumption | -Idle:1.5W -Active:1.8W |
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) |
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) |
Dialing Method | DTMF mode in accordance with ITU-T recommendation Q.23. |