OpenTTCN Oy specializes in test execution tools. They have been providing test system projects and testing tools since 1993. OpenTTCN's primary focus is development of TTCN based testing tools and components.
Odin TeleSystems has been servicing the Telecom industry for over a decade by offering a variety of Telecom Adapter Boards and Software Packages for Telecom, Internet Telephony, and Test and Measurement systems.
Estacado Systems provides products and services for Voice-over-IP (VoIP), presence, and instant messaging. They work at every level — from enterprise and residential deployments to wire-line and wireless carriers.