HEATKEYS

Kapanga Softphone is the premier SIP software phone integrating voice, video and fax over IP communications in one single application. Kapanga Softphone lets people make phone calls, video calls and send and receive fax while connected to a Voice ove...

3CX VOIP PBX - provides an easy to use, plug and play SIP - IP PABX for Windows. With a software based IP PBX you will save on PBX maintenance and halve your phone bill. Download the FREE edition today and break free from your proprietary phone syste...

Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

Twilio lets you use standard web languages to build voice, VoIP and SMS applications via a web API. Build the next generation of communications with us.

Fax Voip T38 Fax & Voice 6.5.1 - T38 Fax/Voice modem for SIP/H.323/ISDN CAPI

Multi-Tech Systems makes M2M communications effortless. Find quick to market and reliable external and embedded modems and Unified Communications products that connect data over cellular and analog networks from anywhere in the world. As a 40-year in...

Our T.38 Fax Over IP (FoIP) service is engineered by fax experts, optimized for today's converged voice and data networks. Dialogic SR140 compatible.

FreePBX is an open source GUI for managing Asterisk PBX

Engage, Collaborate, Co-Create and Share your knowledge by asking and answering questions in the discussion forums, commenting on blogs, rating videos, and sharing tips and advice in the wiki-style documents on configuring, troubleshooting, and desig...