Location of the Encoded Information

Encoded media release information can appear in three different places:

• SDP attribute

  Media release data can be encoded into an SDP attribute in the SIP message body (for example, media-release=sdp;acme-media). The encoded data is placed into an acme-media attribute in the SDP:

  a=acme-media:<encoded-media-interface-info>

• SIP header parameter

  Media release data can be placed in a header parameter of a SIP header (for example, media-release=Contact;acme-media). The encoded data is placed into an acme-media parameter in the Contact header:

  Contact: <sip:[e-mail]>;acme-media=<encoded-media-interface-info>

• SIP header

  Media release data can appear in a SIP header (for example, media-release=P-Media-Release). The encoded data is placed into a P-Media-Release header:

  P-Media-Release: <encoded-media-interface-info>