OpenVox D230 Series is now the leading 2 port T1/E1/J1 PCI-E card in the open source industry. It takes full advantage of Octasic® Hardware Echo Cancellation Module to deliver the superior voice quality over T1, E1, and J1 interface.
2 T1/E1/J1 ports;
Up to 64 channels in E1 mode or 48 channels in T1/J1 modes;