Yeastar EX30 is en expansion board for the S100 and S300 IP PBX products.
The Yeastar EX30 expansion board adds one T1/E1/PRI port to a Yeastar S100 or S300 IP-PBX. When you need to connect your VoIP phone system to a digital phone system, the EX30 makes it simple.
• 1 E1/T1/PRI port
- Used to expand E1/T1 interfaces. It support 1 E1/T1 interface.
• Can add 2 expansion cards to S100, and 3 to S300