Yeastar EX08 Expansion Board with 8 RJ11 Ports for S100 and S300
• 8 RJ11 ports
• Supports up to 4 optional modules
• Can add 2 expansion cards to S100, and 3 to S300
• 8 RJ11 ports
• Supports up to 4 optional modules
• Can add 2 expansion cards to S100, and 3 to S300