This computer system was first based on the PDP-11 product line from Digital Equipment Corporation and used the CB Unix operating system and custom application software and device drivers that were developed and maintained by Bell Labs in Columbus, Ohio USA.
SCCS was ported to the AT&T 3B20 and 3B5 computers running UNIX System V Release 2 in the early 1980s.
With SCCS, telephone companies could significantly reduce the number of technicians and dispatch them as required to resolve problems or perform routine maintenance operations.
[1] The SCCS system was phased out during the late 1990s and replaced by an OSS known as Network Monitoring and Analysis[2] or NMA that was developed by Bell Communications Research now Telcordia Technologies.
AT&T developed additional products based on SCCS software, such as Compulert.