» Cisco IP/TV    Video server and viewer which implements RTSP, RTP, H.261, and MPEG video. [Client and Server]    http://www.cisco.com/iptv

» Columbia University rtspd    Supports serving of .au files via RTSP/RTP for Windows NT and Solaris [Server, source available]    http://www.cs.columbia.edu/IRT/software/rtspd

» Darwin Streaming Server    Apple's open source streaming server and proxy. Supports RTSP/RTP serving of MOV files. [Server and Proxy, includes source]    http://developer.apple.com/opensource/server/streaming/

» Helix    Media delivery platform for streaming multimedia productions. Supports RTSP/RTP delivery of AVI, WAV, MP3, and MOV files, as well as RTSP delivery of RealAudio and RealVideo [Server, Proxy, and SDK; source available]    https://helixcommunity.org/

» IBM RTSP Toolkit    IBM's toolkit is based on tools developed for video and other applications in 1995-1996. Their toolkit reflects the Unix philosophy of shells, processes and generic tools, and demonstrate a shell-based implementation of the protocol and its usefulness for    http://researchweb.watson.ibm.com/rtsptoolkit/

» Komssys    RTSP/RTP implementation for multimedia systems researchers who want to investigate protocols and operating systems issues [Server, Client, Proxy; includes source]    http://komssys.sourceforge.net/html/index.html

» MPEG4IP    MPEG-4/ISMA interoperability suite produced by Cisco. Supports MPEG-4 Audio (aac), MPEG-4 Video, RTP, RTSP, MP3 (using RFC 2250). Includes client, server (Darwin), and encoding tools. [Client and Server, includes source]    http://mpeg4ip.sourceforge.net

» Open Mash    Open Mash supports the Mash streaming media toolkit and distributed collaboration applications based on the Internet Mbone tools and protocols. [Client, includes source]    http://www.openmash.org

» QuickTime    Apple's multi-platform multimedia software architecture. Supports RTSP/RTP with H.261, H.263, MPEG 1 Video, Layer 1 and 2 Audio, DVI, mu-Law, a-Law and others. [Client, includes source]    http://www.apple.com/quicktime

» RealPlayer    RealNetworks cross-platform multimedia player. Supports RTSP/RTP with H.261, u-Law, a-law, MP3, DVI. [Client]    http://www.real.com/player

» Sun Java Media Framework    SDK for adding streaming media to Java applications and applets. [Client SDK]    http://java.sun.com/products/java-media/jmf/