DS0

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DS0

(communications)
The zeroth DS level, having a transmission rate of 64,000 bits per second (64 kb/s), intended to carry one voice channel (a phone call).
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

DS0

A single 64 Kbps channel, which is the building block of a T1 transmission line. Designed for digital voice (PCM), 24 DS0 channels make up one T1 line. See DS and PCM.
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With software-controlled mux s, FT1 DS-0 channels can be ued in any combinaton to transport voice or data at different times of the business day or night, under the customer's direct control.
Another important customer requirement--and one that goes beyond the capabilities of basic FT1 services--is the growing demand for use of the full 64 kb/s inherent in a DS-0 channel.
Both traditional 56-kb/s sub-rate and basic FT1 DS-0 offerings are limited to 56 kb/s of useable tranmission capacity, by virtue of the need to reserve bits to meet line-coding public-network needs.
Get the most from fractional T1: sky's the limit in bandwidth options up to DS-1

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