1A Voice Storage System: Architecture and Physical Design
R. G. Cornell, J. V. Smith · Bell System Technical Journal · 1982
To provide new basic capabilities associated with the Custom Calling Services II (CCS II) feature package, a new system has been developed. This system, the 1A Voice Storage System (1A VSS), is a generalized resource with the ability to receive, store, administer, compose, and deliver voice messages or announcements. The capacity of this system is such that it can provide CCS II services on hundreds of simultaneous calls and serve tens of thousands of concurrent subscribers. In this article, the circuit architecture and physical design of the 1A VSS is described.