(RFC 4393 published March 2006, subtype last updated March 2006. RFC 6381 does not contain a registration template.) MIME media type name: video MIME subtype name: 3gpp2 Required parameters: None Optional parameters: Codecs. See [Bucket]. If the video/3gpp2 body part contains another container format, the Codecs parameter MUST list all codecs indicated by all formats, including any contained formats. Optional parameter values: [3gpp2] Encoding considerations: This data is binary and should be transmitted in a suitable encoding without CR/LF conversion, 7-bit stripping, etc.; base64 is a suitable encoding. Note that this MIME type is used only for files; separate types are used for real-time transfer, such as for the RTP payload formats for H.263 [RFC2429] and 13K vocoder speech [RFC2658]. Security considerations: See the security considerations section in RFC 4393 (this document). Interoperability considerations: The 3GPP2 organization has defined the specification of the media format [3gpp2]. Interoperability and conformance testing is done in cooperation with other bodies, including the Open Mobile Alliance (OMA) and the International Multimedia Telecommunications Consortium (IMTC) . Published specification: 3GPP2 C.S0045, 3GPP2 C.S0050 [3gpp2] 3GPP2 specifications are publicly accessible at the 3GPP2 web site, . Applications that use this media type: Multi-media Additional information: Magic number(s): None. However, the file-type box must occur first in the file and MUST contain a 3GPP2 brand in its compatible brands list. File extension(s): 3g2 and 3gpp2 are both declared at ; 3g2 is preferred. Macintosh file type code(s): '3gp2' Person & email address to contact for further information: H.Garudadri, hgarudadri&qualcomm.com Intended usage: COMMON Change controller: 3GPP2