...See also open source, cross-platform:
1) simple messenger Brief Msg at http://briefmsg.org
2) MUVConf is a multi-user video conferencing, see demo video http://youtu.be/YrBU-Aqtvrk, download https://code.google.com/p/muvconf/downloads/list
Android application based on Environment State Virtual sensor for Android. TelephonyManager allows to automatically configurate telephony settings, according to the environment state.
This project has been superseded by OpalVoip (https://sourceforge.net/projects/opalvoip/) and H323Plus (https://sourceforge.net/projects/h323plus/)
The OpenH323 project provides full featured, interoperable, Open Source implementation of the ITU H.323 teleconferencing protocol that can be used by personal developers and commercial users without charge.
Transform your applications and workflows into powerful agentic systems at global scale.
Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
...It may be compiled and used on Unix and Windows. Uses synapse library. Written in Object Pascal. May be compiled with FreePascal compiler. (Delphi/Kylix also)
upd. moved to github https://github.com/norayr
jsnpp is a java API for SNPP transactions, enabling a java application to send messages to pagers.
This project has moved to GitHub: https://github.com/dtseiler/jsnpp