FAQ, news, and information concerning advancements, innovations, and regulatory issues related to VoIP services.

Offers recent news, a glossary of terms, overview of the big issues, and news about the companies involved in offering Internet telephony products.

U.K. suppliers of Skype phones, USB phones, VoIP headsets, microphones, and information on VoIP service providers.

Provides voice over IP services allowing users to make local, long distance, and international phone calls over the Internet.

Produces VoIP technologies including the MVTS Session Controller that scales up to 40K concurrent calls, supports SIP and H.323, and provides call admission control, QoS, and SLA.

VoIP provider directory and search engine from My VoIP Provider. Compares and ranks service providers according to their call rates.

Reference page for professionals involved in implementing or testing Voice over IP implementations.

Offers a definition of the term, applications, and links to more information.

Offering free VoIP resources including online bandwidth calculators, white papers, books, and a directory and forum.

Online guide to Internet telephony and VoIP providers with product comparisons and book reviews. Includes a knowledge base that covers gateways and protocols.