(per RFC 3555) MIME media type name: video MIME subtype name: H263 Required parameters: None Optional parameters: None Encoding considerations: This type is only defined for transfer via RTP [RFC 3550]. Security considerations: See Section 5 of RFC 3555 Interoperability considerations: none Published specification: RFC 2190 Applications which use this media type: Audio and video streaming and conferencing tools. Additional information: none Person & email address to contact for further information: Stephen Casner Intended usage: COMMON Author/Change controller: Stephen Casner