China Vandal Proof Prison SIP Phone, Rugged VoIP Telephone for Jail, Inmate Telephone, Find details about China Prison Telephone, Prison SIP Phone from Vandal Proof Prison SIP Phone, Rugged VoIP Telephone for Jail, Inmate Telephone
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 | |
Dialing Method | DTMF mode in accordance with ITU-T recommendation Q.23. | |
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) | |
3G Version | ||
Power Supply | 12V DC | |
Power Consumption | -Idle:0.3W -Active: 1.5W | |
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 850/900/1800/1900MHz E version: - Dual-Band UMTS/HSDPA 900/2100MHz - Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHz J version: - Dual-Band UMTS/HSDPA 850(800)/2100MHz - Quad-Band GSM/GPRS/EDGE 850/900/1800/1900MHz | |
Ambient conditions | ||
Protection type | IP 66 as per EN60529 | |
Operating temperature | -25°C to +70°C | |
Storage temperature | -35°C to +85°C |