... LAN and an additional deviceGSM module for making GSM callsSpeech quality ensured by QoS at the ... Ready, Status, WAN, PC, GSMCall forward from GSM to VoIP and VoIP to GSMDial in mode or ... GSM Module: Type: 850MHz, 900MHz, 1800MHz, 1900MHz Power: Input AC100V ~ 240V, output DC12V/2A +-10%Power consumption: 12W maximum Operating temperature ... 40°C (32°F to 104°F) Storage temperature: 0°C to 50°C (32°F to ...