Blink which currently available for MacOSX only, provides Instant Messaging (IM) and File Tranfer that functionality based on SIP SIMPLE standards. Blink include RTP audio sessions (V0IP), instant messenger, file transfer, desktop sharing, resource list and RLS services documents using XCAP protocol, and much more. Blink also will be available for Window and Linux soon. [...]

Written by Python programming language,  Skype Talking is provides simply access to Skype by reading incoming and outgoing alerts such as incoming calls and online status. You can also used it to create alert from file transfer, and  incoming / outgoing chat messages by using Skype API and screen reader. This Skype Talking application will [...]

Sofros is instant messenger for LAN aka Local Area Network from Sofros System Inc for effective intra-office communication. This Sofros LAN Messenger does not require an internet connection and it works inside your LAN or WAN preventing employees from wasting their time on chatting with their friends via Internet-based IMs. Sofros is secure LAN messaging [...]