This document specifies the XML Schema for Media Control Extensions Protocol. This protocol is a proprietary extension to an Internet-Draft Proposal entitled "XML Schema for Media Control," which is described in [IETFDRAFT-XMLSMC-12] section 1. [IETFDRAFT-XMLSMC-12] describes media control messages for Session Initiation Protocol (SIP)-based systems that send or receive video using the Real-Time Transport Protocol (RTP).
This protocol extends [IETFDRAFT-XMLSMC-12] by adding one new media control command instructing a sender to stop or suspend transmission of real-time video streams during a multimedia session.
Sections 1.8, 2, and 3 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in RFC 2119. Sections 1.5 and 1.9 are also normative but cannot contain those terms. All other sections and examples in this specification are informative.