(RFC 3880 published October 2004, subtype last updated October 2004) MIME media type name: application MIME subtype name: cpl+xml Mandatory parameters: none Optional parameters: charset As for application/xml in RFC 3023. Encoding considerations: As for application/xml in RFC 3023. Security considerations: See Section 13, and Section 10 of RFC 3023. Interoperability considerations: Different CPL servers may use incompatible address types. However, all potential interoperability issues should be resolvable at the time a script is uploaded; there should be no interoperability issues which cannot be detected until runtime. Published specification: This document. Applications which use this media type: SIP proxy servers and other telephony servers, and client software to control their behavior. Additional information: Magic number: None File extension: .cpl or .xml Macintosh file type code: "TEXT" Person and e-mail address for further information: Jonathan Lennox Xiaotao Wu Henning Schulzrinne Intended usage: COMMON Author/Change Controller: The IETF.