Dialogic telephony cards
Dialogic telephony cards was a line of PC expansion cards developed in 1990s by Dialogic Inc., at the time Media & Signaling Division of Intel Corporation, for computer telephony applications. The cards are currently produced today by Sangoma Technologies Corporation. The cards were available in ISA, VME, PCI and PCIe bus versions, and were used in PC-based proprietary software solutions for automated telephone systems running on the Wintel platform, including Microsoft Windows NT/2000/XP, NT Server/Server 2000/Server 2003, as well as Solaris and Linux. The cards were produced in analog phone (2 to 24-port RJ-11) and digital ISDN (T1 up to 96 channels, or E1 up to 120 channels, 1 to 4 port RJ-48C or BNC) line configurations depending on usage. Hardware The cards contain up to 18 Motorola 56002, Motorola 56321, or Freescale 56303 DSPs and an Intel 960, Intel 486 or ARMv7 host processor. The cards can handle multiple phone calls simultaneously and route them to the intended point of service. There were several versions that could handle from 24 to 192 voice/conferencing channels on digital ISDN interfaces and from two to 32 analog ports (phone lines). The Dialogic cards are capable of making and answering calls, identifying caller