1A voice storage system: Office engineering, maintenance, and reliability

The quality of service that will be delivered by the Voice Storage System (1A VSS) is influenced by a number of diverse factors which are addressed in this paper. High intrinsic reliability is designed into the system at every level; it is built from system redundancies, defensive software strategies, hardware self-checking, and manufacturing quality control. Good service also requires a complement of equipment which can adequately handle peak traffic loads; the sizing of this complement is the job of Office Engineering. Effective maintenance software will minimize, and in most cases obviate, the impact on service of circuit component failures. And finally, effective plans and test equipment are required to ascertain that a newly installed 1A VSS properly performs its intended functions.