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The Digium TDM2400 analog telephony card can support up to 24 FXS or FXO ports. Choose compatible modules to expand the base card to your system's specifications. Install this card on an available PCI slot.
A supported echo cancellation module can clean up the card's already outstanding voice and audio performance. This 2400 series card from Digium is ideal for leveraging your existing analog connections with VoIP or an IP PBX.