iBasis - A provider of International IP telephony services is a facilities-based carrier utilizing the Internet.
InnoMedia - A US supplier of SIP and MGCP VoIP terminal adapters, IP phones and videophones for service operators, & analog products.
Inter-Tel Corporate - Offers voice and data communications solutions for customers of all sizes, whether you are a large enterprise, small to medium business, or have residential home-based business needs.
PortaOne - Enables Internet telephony service providers (ITSPs) and voice network operators to quickly and efficiently implement, manage and deliver a wide range of solutions for their services.
Servonic - Specialized in the development of its own software products in the fields of communication.
Unilink - Committed to delivering rapid solutions to complex business problems and to providing value-added IT services to our clients.
VoiceConnect Inc. - A voip company pecializing in voice mail service, unified messaging, and live answering service.