End-to-end customer care & billing. OSS telecom solutions.
Sigma Systems is the leading provider of service management OSS solutions for delivering next-generation voice, data, and video services over cable, DSL, and wireless IP broadband networks.service management, sigma, sigma systems, OSS, operations support systems, high speed
https://www.sigma-systems.com/
Radio Television International
Business, Telecommunications, Customer Management - Radio Television International. Computer software for radio and television traffic, logging and billing.
http://rti.tvheaven.com/
AMDOCS CUSTOMER EXPERIENCE SYSTEMS INNOVATION
Business, Telecommunications, Customer Management - Amdocs Ltd. Customer care, billing and order management systems for telecommunications carriers and Internet services providers.
https://www.amdocs.com/