RFC 3261:SIP: Session Initiation Protocol
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media type


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... The Internet media type of the message body MUST be given by the Content-Type ...


... request, either omitting the body or using one of a smaller length. If a 415 (Unsupported Media Type) response is received (Section 21.4.13), the request contained media types not supported by the UAS ...
... If a 415 (Unsupported Media Type) response is received (Section 21.4.13), the request contained media types not supported by the UAS. The UAC ...
... header field), the UAS MUST reject the request with a 415 (Unsupported Media Type) response. The response MUST contain an Accept header field listing the types of all bodies it understands, ...


... Specifically, this means that it SHOULD include as many media formats and media types that the UA is willing to support. The UAS MUST ...


... SIP message-body. This makes it possible to specify the subject, media type, or urgency of sessions initiated by using a URI ...


... primarily used to allow a body to be compressed without losing the identity of its underlying media type. If multiple encodings ...
... Applications SHOULD use this field to indicate the size of the message-body to be transferred, regardless of the media type of the entity. If a stream ...
... The Content-Type header field indicates the media type of the message-body sent to the recipient. The "media-type ...
... not understood. 304 Media type not available: One or more media types contained in the session ...
... 304 Media type not available: One or more media types contained in the session description are not available. ...


... 415 Unsupported Media Type ...


... header "handling" parameter of "required") MUST reject the request with a 415 Unsupported Media Type response if the MIME type is not understood. A user agent ...


... / "414" ; Request-URI Too Large / "415" ; Unsupported Media Type / "416" ; Unsupported URI Scheme ...


... This document registers the "message/sip" MIME media type in order to allow SIP messages to be tunneled as bodies within SIP ...
... SIP, primarily for end-to-end security purposes. This media type is defined by the following information: ...
... following information: Media type name: message Media subtype name: sip ...


... Freed, F. and N. Borenstein, "Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types", RFC 2046draft, November 1996. ...
... Zimmerer, E., Peterson, J., Vemuri, A., Ong, L., Audet, F., Watson, M. and M. Zonoun, "MIME media types for ISUP and QSIG Objects", RFC 3204prop ...



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