A third-party plugin for the pidgin multi-protocol instant messenger. it implements the extended version of sip/simple used by various products:

* microsoft lync server 2010
* microsoft office communications server (ocs 2007/2007 r2 and newer)
* microsoft live communications server (lcs 2003/2005)
* reuters messaging
this package contains debug symbols for pidgin-sipe that can help in tracing execution of the plugin and searching for bugs.