The DPL3 is a short form PCI plug-in board for standard desktop workstations. The DPL3 offers either 4 x E1/T1 bi-directional interfaces or 2 x E1/T1 bi-directional interfaces and 1 x E3/DS3 bi-directional interface.

Desktop PCI Telephony (DPT7) -

Four T1/E1 interface, PCIe board for software developers to build Voice over IP (VoIP), Voice over DSL (VoDSL), or Voice over Packet (VoP) solutions.