The Sangoma 4 Port PRI Card is a PCI Express card that allows you to connect four PRI trunks to your computer. PRI trunks are high-bandwidth connections that can simultaneously carry up to 24 voice calls. It is also compatible with various IP PBX software, such as 3CX, Asterisk, and FreePBX. This makes it easy to integrate the Sangoma 4 Port PRI Card into your existing phone system. This high-quality PRI card supports ISDN PRI, E1, T1, and J1 interfaces, ensuring crystal-clear voice quality and reliable call routing. Ideal for call centers and enterprises, it offers echo cancellation, low lat