(RFC 6262 published August 2011) Media Type name: audio Media Subtype name: ip-mr_v2.5 Required parameters: none Optional parameters: These parameters apply to RTP transfer only. ptime: The media packet length in milliseconds. Allowed values are: 20, 40, 60, and 80. Encoding considerations: This media type is framed and binary (see RFC 4288, Section 4.8). Security considerations: See Section 6 of RFC 6262. Interoperability considerations: none Published specification: RFC 6262 Applications that use this media type: Real-time audio applications like voice over IP, teleconference, and multimedia streaming. Additional information: none Person & email address to contact for further information: V. Sviridenko Intended usage: COMMON Restrictions on usage: This media type depends on RTP framing and thus is only defined for transfer via RTP [RFC3550]. Authors: Sergey Ikonin Dmitry Yudin Change controller: IETF Audio/Video Transport working group delegated from the IESG.