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Add 100 VoIP Users & 30 Concurrent Calls Supported Model: S100 and S300
• 8 RJ11 ports • Supports up to 4 optional modules • Can add 2 expansion cards to S100, and 3 to S300
• Module has 1 GSM port to terminate GSM networks • GSM Channels: 1 channel • Network Types: 850/900/1800/1900 MHz (quad-band)
1 Channel for GSM Voice Calls Frequency: 850/900/1800/1900 MHz (quad-band)
2 Ports for two traditional phones