ALLO Analog Active Card with 2 FXS and 2 FXO, compatible with 3CX, Asterisk, Askozia, Elastix, FreeSwitch and others

Why ACTIVE? All of the cards available on the market are called PASSIVE or DUMB cards.

The difference is that ALLO Analog Active Card takes care of the majority of operation on board thus reducing the load on the CPU. Furthermore, ALLO product is detected as a network card in both Linux^TM and Windows^TM systems.