Yeastar EX30 E1/T1 interface expansion module for Yeastar PBX
![E1/T1 interface expansion module for Yeastar PBX](https://cdn.n2erp.co.nz/sna_7997037D-0128-4104-B866-3D126751B9E7/images/products/large/EX30_636199244904913906.jpg)
The Yeastar EX30 expansion board adds one T1/E1/PRI port to a Yeastar IP-PBX. When you need to connect your VoIP phone system to a digital phone system, the EX30 makes it simple.