• The module has 1 GSM port to terminate GSM networks
• GSM Channels: 1 channel
• Network Types: 850/900/1800/1900 MHz (quad-band)
• GSM Engine: SIMCoM
• Transmitter Power: +33 dBm (2W) 850/900 MHz, +30 dBm (1W) 1800/1900 MHz
• SIM Card: 1 SIM per channel, small plug-in, 3V

Yeastar YST-GSM adds a GSM port to a Yeastar PBX device.