Social Source Commons

Open source PBX (phone system)

An opensource Voice over IP phone allowing you to do free calls over the Internet.

Zfone is software for secure voice communication over the Internet (VoIP). It is created by Phil Zimmermann, the creator of the PGP encryption software. Zfone works on top of existing SIP- and RTP-programs, like Gizmo and SIPphone

Free web conferencing tool that can make and record conference calls and online presentations.

eBLVD integrates remote control, text chat, VoIP, annotation, file transfer, 128-bit security encryption, event scheduling, free teleconferencing support and recording into an essential PC-based screen sharing solution

WebEx integrates audio and video conferencing and supports both Internet Phone (VoIP) and teleconferencing (telephone).

Google Talk enables you to call or send instant messages to your friends for free, anytime, anywhere in the world.

FWD enables anyone with a broadband connection to communicate over the Internet, whether it be instant messaging, voice, or video.

Jajah is a software to make free audio and video calls to anyone connected to a PC to the Internet, to SIP-compliant devices and smartphones, as well as to interconnect to standard telephone and mobile users around the world.

The Voxwire Meeting Room is an unlimited computer-to-computer web conferencing application that allows people to talk to each other, send text-messages, and see the same website or other presentation on their screens

Wengo is a VoIP provider which allows you to make free PC to PC calls regardless of your partner's voip platform.

Asterisk-made-easy: Easy to install & easy to manage through web-based UI

Free IP PBX / SIP server supports set-up of professional phone systems that allow you to create extensions, transfer calls, and extend VOIP services to all users. Works via your computer network (no separate phone wiring) and allows use of SIP software phones on your PC or any SIP hardware phone.

fring is a free mobile VoIP software that lets you talk and live chat (IM) using your handset's Internet connection

VOIP service.

Video email service.

A J2ME (java applet for mobile phone) application that lets you initiate cheap phone calls using a Finarea VOIP account.

Cause Caller is an interactive VoIP application that helps activists organize virtual phone banks. Cause Caller uses a Semantic Media Wiki to power its database of public officials contact information

Google VOIP service.

Toll Free or Local Hosted Phone Service

With Vonage, you make phone calls using your high-speed Internet connection with your existing home phone.

Audio/video Internet phone and instant messenger. It supports many popular instant messaging and telephony protocols such as SIP, Jabber/XMPP (and hence GoogleTalk), AIM, ICQ, MSN, Yahoo! Messenger, IRC, and Bonjour.

ClickDesk provides a magic box of live chat, helpdesk, voice chat and social toolbar for websites.