Telephone Network Data Card

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Detailed Description

The feature of Telephone Network Data Card is as follow: Features as a Voice/Fax Card •Enable high-density applications •Signaling functions such as loop serzure, current detection, and ring are controlled and monitored through the host-PC interface •Toll quality voice encoding and decoding •Support for caller ID calling party number retrieval •Transient protection circuitry for high reliability voice format, Provides variable voice coding at 24/32 Kb/s ADPCM (vox), 64Kb/s A-law PCM, and 64/128Kb/s A-law/linear waves •Configure multiple boards in a single chassis, PCI bus, for easy and cost-effective system expansion of up to 128/256 analog ports •Four or eight fax processing ports in a single PCI slot, up to 14,400b/s(V.17) fax with ITU-T Group 3 •Industry-standard CT Bus Features as VoIP Card •Support different protocol dynamically, for example G.723.1 ect. •G.165/G.168 compliant 64ms echo cancellation •Support H.323 V4，Automatic Gatekeeper Discovery •Support G.711 A-law/U-law, G.729/A/B/AB, GSM610, G.723.1 5.3/6.3 •Tone generation and Local DTMF re-generation according with ITU-T •E.164 dial plan and customized dial rules •DTMF Dialing •Inband/Outband DTMF •Adjustable volume •RAS and Signal port can be changed •CNG(Comfort noise generation) •VAD (Voice Activity Detection) •Dynamic voice jitter buffer •Bad Frame Interpolation

Basic Company Information

Shenzhen Sinda Technology Development CO.,LTd

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