quality of service (QOS)


quality of service (QOS): 1. The performance specification of a communications channel or system. (188) Note: QOS may be quantitatively indicated by channel or system performance parameters, such as signal-to-noise ratio (S/N), bit error ratio (BER), message throughput rate, and call blocking probability. 2. A subjective rating of telephone communications quality in which listeners judge transmissions by qualifiers, such as excellent, good, fair, poor, or unsatisfactory.


This HTML version of FS-1037C was last generated on Fri Aug 23 00:22:38 MDT 1996