SEMS

SEMS demonstrates excellent scalability from embedded systems to multi-core servers, handling up to 5000 channels on dual quad Xeon and 19000 TPS for B2BUA, as per the README's performance claims.

Offers DSM state machine scripting, embedded Python interpreters (ivr, py_sems), and a C++ API, enabling rapid development of custom VoIP services without deep C++ knowledge.

Supports patent-free codecs like G.711, GSM, Speex, Opus, and iLBC, with optional G.729, MP3, and ZRTP, and allows easy integration of additional codecs, as detailed in the features.

CMake options enable tailoring deployments by excluding specific modules (apps, DSM, core) and activating features like Opus or ZRTP support, providing flexibility for different use cases.