Yeastar EX30 E1 is specifically designed for improving the power and flexibility of Yeastar series IP PBX systems (S100 and S300). EX30 expansion board supports 1 E1/T1/PRI ports and this can be used in conjunction with the S100 and S300 IP PBX systems for the expansion facilities. It can increase the number of SIP users and concurrent calls as your business grows.
1 port E1/T1 Port Expansion Board for Yeastar S100 and S300 system.
Use to up 2 expansion cards on the S100 and up to 3 expansion cards on the S300.