SIP Express Media Server (SEMS) released 1.3.1 with several bug fixes and improvements since 1.3.0, among them:
– fixed CMake build scripts
– fix for architectures w/o atomic built-in functions
– add lost accept_fr_without_totag sample cfg option
– fixed missing CRLF in transfer header

The tarball can be downloaded from:
http://ftp.iptel.org/pub/sems/sems-1.3.1.tar.gz

SEMS is a lightweight media server that can be used along with Kamailio to provide back-to-back user agent functionality, voicemail, IVR, audio conferencing, a.s.o.