Type name: application Subtype name: sdp Required parameters: None. Optional parameters: None. Encoding considerations: 8-bit text. SDP files are primarily UTF-8 format text. The "a=charset:" attribute may be used to signal the presence of other character sets in certain parts of an SDP file (see Section 6 of RFC8866). Arbitrary binary content cannot be directly represented in SDP. Security considerations: See Section 7 of RFC 8866. Interoperability considerations: See RFC 8866. Published specification: See RFC 8866. Applications which use this media type: Voice over IP, video teleconferencing, streaming media, instant messaging, among others. See also Section 3 of RFC 8866. Fragment identifier considerations: None Additional information: Deprecated alias names for this type: N/A Magic number(s): None. File extension(s): The extension ".sdp" is commonly used. Macintosh File Type Code(s): "sdp " Person & email address to contact for further information: IETF MMUSIC working group Intended usage: COMMON Restrictions on usage: None Author/Change controller: Authors of RFC 8866 IETF MMUSIC working group delegated from the IESG