Letter: S
- sipsak-0.9.6-1: SIP swiss army knife
- spandsp-0.0.4-20.pre15: A DSP library for telephony
- spandsp-0.0.4-21.pre15: A DSP library for telephony
- spandsp-0.0.4-22.pre15: A DSP library for telephony
- spandsp-0.0.4-8.pre15: A DSP library for telephony
- speex-1.2beta2-1: An open-source, patent-free speech codec