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The SST X4 is an analog computer telephony integration card. Using this card a PC can interface to the PSTN (Public Switched Telephone Network) or a PBX switch over an analog 2-wire telephone interface line.

Product Features:

• Supports 4 analog telephony ports per board.
• All ports can be used for making incoming or outgoing calls.
• Supports pulse and Tone (DTMF) dialing.
• Supports DTMF digit detection and generation.
• Supports Dial Pulse Detection and FAX/Modem Answer Tone Detection.
• Supports DTMF and FSK based caller ID identification .
• Supports Call Progress Tone Detection. An Automatic Tone Configuration utility is provided for configuring the card to detect PSTN and various PBX tones.
• Loop reversal detection for called party answer detection.
• The card can be configured to the local PSTN network specifications.
• Supports recording or playing of voice signals on all ports. It supports, 8 kHz sampled A-law coding, 8 kHz sampled u-law coding and 8 kHz sampled 16 bit linear wave formats.
• Supports popular APIs for call processing (TAPI) and Media interfacing (WAVE API). Software applications written, using TAPI or WAVE API can be easily migrated to this board.
• Supports Win NT 4.0, Windows 2000 and Windows XP Operating System.
• The card is a half-size PCI plug-in board.
• Multiple boards can be supported on the same system.
• Supports PBX related features such as call forward and call transfer.
• Supports Positive Voice Detection.
• Supports Silence Detection.
• Supports SIT (Special Information Tone) Detection.
• Supports Loop Current Drop Detection.
• Suggested Retail Price - US$799 (quantity one)