These cards follow the original Jim Dixon Zapata Telephony design, are open hardware, and
sport a recent Dallas framer chip.
OpenSS7 has historically developed drivers for a number of E1/T1/J1 cards from various
vendors, both in the PCI/PCIe form factors as well as CompactPCI and mezannine cards with
varous framer chips. If you need driver development for specific hardware; contact us at firstname.lastname@example.org, or see our Contact page.