AT&T TN744DV1 8-Port Call Classifier Tone Detection Card
- 8 ports of tone detection on the Time Division Multiplexing (TDM) bus that function the same as the TN2182, but the TN744C does not support call progress, tone generation, or clocking
- Supports digital signal processing of Pulse Code Modulation (PCM) signals on each port to detect tones and other signals
- Generation of tones is also supported for applications such as Release 2 Multi-Frequency Compelled (R2-MFC), Spain MF, and Russia MF
- Gain (or loss) and conferencing can be applied to PCM signals received from the TDM bus
- Additional support includes DTMF detectors to collect address digits during dialing
- The TN744D supports all the functions of the TN744C plus additional call classifier options for various countries
- These items have been refurbished
- Refurbished items have been cleaned, tested, and confirmed to be fully functional
- These items may have minor blemishes on their housings which cannot be removed during the refurbishing process
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- Item(s) must be returned within 30 days from invoice date.
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