Choosing communications boards for echo cancellation

摘要

Echo cancellation is required on every channel in a gateway board, is accountable for each customer's call experience, and is probably the single most important factor in determining voice quality in a gateway. The growth of VoIP has sharpened the focus on the critical role played by echo cancellation in meeting customer expectations. Equipment manufacturers more than ever need to keep voice quality in mind when selecting boards, blades, or modules for handling voice services in gateway equipment designs.