Communication Software Specialties, a subsidiary division of Sierra Security Systems, Inc., provides the telecommunication industry with a vast collection of professional software products and services.

Flagship products include telephone billing systems for independent telephone companies; Local Exchange Carriers and Competitive Local Exchange Carriers.

Communication Software Specialties maintains research and development centers central to its staff of talented Programmers and Systems Analysts located in the Eastern High Sierra's of California and in the Big Sky country of Eastern Montana, These relaxed, less stressful environments provide the superior work atmosphere that is required to produce our quality Telecommunication Industry software products.