OpenVox A1610 series is 16 ports FXO/FXS, PCI/PCIe card 4 slots for 4 FXO/FXS modules . Hardware Echo Cancellation DSP Octasic® in option OpenVox A1610 is a new generation analog card with optional Octasic Hardware Echo Cancellation Module on board. With the interchangeable quad-FXS and quad-FXO modules, A1610 can eliminate the requirement for separate...
SP143 is designed for analog card AE1610E/P. It's to split RJ45 jack to RJ11 jack that is used to connect the telephone line.