1A Voice Storage System: Software

Software By G. W. GATES, R. F. KRANZMANN, and L. D. WHITEHEAD (Manuscript received July 31, 1979) The new Custom Calling Services II (ccsll) have been provided by adding a 1A Voice Storage System (1A vss) as a new node in the Stored Program Control network. Software and a new trunk circuit are required in the No. 1/1A ESS to provide call control, call filtering, and routing to a 1A vss. The 1A vss accepts the call and provides the package of voice services known as ccs II. The software required to provide these services is described.