SIP SIMPLE client SDK is a Software Development Kit for easy development of SIP multimedia end-points with features beyond VoIP like Session based Instant Messaging, File Transfers, Desktop Sharing and Presence. Other media types can be easily added by using an extensible high-level API.
The software allows you to create elegant real-time communications applications without having to read the +1200 RFC documents behind it. As a library with a high-level API, the toolkit can be used to add voice, IM and Presence functionality to any network devices as long as Python/C environment is supported by such platform.
For more information visit http://sipsimpleclient.org