(registered in RFC5391) Type name: audio Subtype name: PCMA-WB Required parameters: none Optional parameters: mode-set: restricts the active codec mode set to a subset of all modes. Possible values are a comma-separated list of modes from the set: 1, 2, 3, 4 (see Mode Index in Table 3 of RFC 5391). The modes are listed in order of preference; first is preferred. If mode-set is specified, frames encoded with modes outside of the subset MUST NOT be sent in any RTP payload. If not present, all codec modes are allowed. ptime: the recommended length of time (in milliseconds) represented by the media in a packet. It should be an integer multiple of 5 ms (the frame size). See Section 6 of RFC 8866. maxptime: the maximum length of time (in milliseconds) that can be encapsulated in a packet. It should be an integer multiple of 5 ms (the frame size). See Section 6 of RFC 8866. Encoding considerations: This media type is framed and contains binary data. See Section 4.8 of RFC 4288. Security considerations: See Section 8 of RFC 5391. Interoperability considerations: none Published specification: RFC 5391 Applications that use this media type: Audio and video conferencing tools. Additional information: none Person & email address to contact for further information: Aurelien Sollaud, aurelien.sollaud&orange-ftgroup.com Intended usage: COMMON Restrictions on usage: This media type depends on RTP framing, and hence is only defined for transfer via RTP. Author: Aurelien Sollaud Change controller: IETF Audio/Video Transport working group delegated from the IESG