python@gentoo.org Python SIP SIMPLE client SDK is a Software Development Kit for easy development of SIP end-points that support rich media like Audio, Video, Instant Messaging, File Transfers, Desktop Sharing and Presence. Other media types can be easily added by using an extensible high-level API. The software has undergone in the past years several interoperability tests at SIPIT (http://www.sipit.net) and today is of industry strength quality.