The Sangoma D100 PCI voice transcoding card is designed for low to high-quality voice. Multiple voice codecs are commonly used in IP telephony applications to digitally compress voice signals and save bandwidth. The G.711 codec is used for voice signals from the Public Switched Telephone Network (PSTN), but VoIP terminal equipment and networks can support a variety of other voice codecs, including G.729, G.726, AMR, G.722, iLBC, and others. The VoIP infrastructure must be able to mediate between endpoints that support different codecs, but this functionality necessitates digital signal processing tasks that are often expensive and resource-intensive and can degrade the quality of voice signals if too much latency and delay are introduced.
- AMR-WB (G.722.2).
- L8 (Linear 8K).
- L16 (Linear 16K).
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