Information on Video Codecs

X-lite has various video codecs implemented. The implemented codecs of the X-lite 3.0 version are H.263 and H.263+. The H.264 codec is available when using eyebeam 1.5 although some codecs require payment of royalities for their use in a product or program.

Codec	Compression method	Transfer rate
H.263	Videocodec (DCT)	16-256 Kbps
G.261	Videocodec (DCT)	64-256 Kbps

Whether the H.263 codec uses 16 or 256 Kbps or anything in between is (still) unclear to me.