Glossary:

ATIS Telecom Glossary

Search Keyword By: S

Select a term name to open its entry and any media references. Longer definitions end with a “Read More” link.

seven-hundred (700) service

A personal telephone service that allows individuals to receive, via a single number, telephone calls in various locations (e.g., home, office, or car) from call originators using the same common carrier.

severely errored second (SES)

A one-second period that contains >30% errored blocks or at least one severely disturbed period. A severely disturbed period occurs when, over a period of time equivalent to 1 ms, all the contiguous blocks are affected by a high bit error density.
Note: A period of loss of signal or a bit error density of >10-2 is considered a period… (Read More →)

severely errored unit of time

1. A specified period of time, during which bits are transferred from a source to a destination, where 30% of the blocks received are errored, or at least one severely disturbed period occurred. A severely disturbed period occurs when, over a period of time equivalent to four contiguous blocks or 1 ms, whichever is larger, all the contiguous blocks are… (Read More →)

sextet

A byte composed of six binary elements. Synonym six-bit byte.

SF

Abbreviation for single-frequency. See single-frequency signaling.

SFTS

Abbreviation for standard frequency and time signal. See standard time and frequency signal service.

SG

Signaling Gateway

SGF

Signaling Gateway Function

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