BlueOSS

BlueOSS Telecom Billing Software as a Service & Analytics is transaction fee based. In practice that means managing your IT, from help desk to infrastructure, as an outside partner.

It makes the most sense for small and mid-sized companies. Related areas on their profile: Consumer Electronics, Robotics and Telecommunications. As a small company team themselves (11 to 50 people), they tend to serve customers of a similar scale best. Small vendors mean quick answers and real influence on the roadmap, but check who covers support when someone is out.

BlueOSS is based in Annapolis, Maryland and around since 2002. More on blueoss.com.

Before you commit, look at response SLAs, onboarding, and what is billed per hour. Get the renewal terms in writing before the first invoice.

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