MyProgs

PJSIP SIP Stack

Open source, portable, small footprint SIP stack supporting presence, IM, media stack, etc.

tags: communication im media protocol simple sip telephony voice freeware opensource crossplatform yes stack presence

PJSIP SIP Stack

Open source, portable, small footprint SIP stack supporting presence, IM, media stack, etc.

tags: communication im media protocol simple sip telephony voice freeware opensource crossplatform yes stack presence

Gizmo Project

Free Phone for Your Computer

tags: communication internet phone sip telephone voip windows freeware osx linux crossplatform mac

Sofia-SIP

Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification (see the feature table). It can be used as a building block for SIP client software for uses such as VoIP, IM, and many other real-time and person-to-p

tags: chat communication telephony yes conferencing

Mozilla Thunderbird

Thunderbird makes emailing safer, faster, and easier than ever before with the industry's best implementations of features such as intelligent spam filters, built-in RSS reader, quick search, and much more.

tags: communication email freeware crossplatform yes

comments: 1

Trillian Basic

Instant Messanger

tags: communication instant messanger windows shareware

GAIM

Gaim is a multi-protocol instant messaging (IM) client for Linux, BSD, MacOS X, and Windows. It is compatible with AIM and ICQ (Oscar protocol), MSN Messenger, Yahoo!, IRC, Jabber, Gadu-Gadu, SILC, GroupWise Messenger, and Zephyr networks.

tags: aim chat communication icq im internet irc jabber messenger msn yahoo freeware crossplatform yes

Skype

Skype is a little program for making free calls over the internet to anyone else who also has Skype. It's free and easy to download and use, and works with most computers.

tags: chat communication internet messenger phone voip freeware crossplatform

comments: 1

WASTE

WASTE is a mesh-based workgroup tool that allows for encrypted, private communication between distant parties on the internet, independant of local network organization.

tags: communication encryption messaging p2p

Miranda IM

Multi protocol instant messenger client

tags: communication messaging network

Steam

Valve content distribution and multiplayer network

tags: client communication games messaging network

Trillian Basic

Trillian is a multiprotocol instant messaging application for Windows created by Cerulean Studios that can connect to multiple IM programs from one client, such as AIM, ICQ, MSN Messenger, Yahoo! Messenger, IRC, Novell GroupWise Messenger, Bonjou

tags: aim aol chat communication im internet msn yahoo

MSN Messenger

With MSN Messenger you can chat online via text, voice, mobile phone or even video conversation -- in real time -- with your friends, family, or colleagues.

tags: chat communication internet messenger

amy

Free Skype plugin that includes Voicemail and Delayed Messaging capabilities

tags: communication schedule skype voip voicemail windows freeware

Gaim

A multi-protocol instant messaging (IM) client.

tags: aim communication icq internet irc jabber messaging msn