Content Disposition Values and Parameters

   Last Updated
           2016-06-22

   Note

 In [RFC2183] there is a discussion of the "Content-Disposition" header
 field and the description of the initial values allowed in this
 header.  Additional values may be registered with the IANA
 following the procedures in section 9 of [RFC2183].

   Available Formats
           [IMG]
           XML [IMG]
           HTML [IMG]
           Plain text

   Registries included below

     * Content Disposition Values
     * Content Disposition Parameters
     * Voice Parameter Values
     * Handling Parameter Values

Content Disposition Values

   Registration Procedure(s)

 Standards Track or IESG-Approved Experimental RFC

   Reference
           [RFC2183]

   Available Formats
           [IMG]
           CSV

            Name                                                            Description                                                   Reference
   inline                 displayed automatically                                                                                         [RFC2183]
   attachment             user controlled display                                                                                         [RFC2183]
   form-data              process as form response                                                                                        [RFC7578]
   signal                 tunneled content to be processed silently                                                                       [RFC3204]
   alert                  the body is a custom ring tone to alert the user                                                                [RFC3261]
   icon                   the body is displayed as an icon to the user                                                                    [RFC3261]
   render                 the body should be displayed to the user                                                                        [RFC3261]
   recipient-list-history the body contains a list of URIs that indicates the recipients of the request                                   [RFC5364]
   session                the body describes a communications session, for example, an RFC2327 SDP body                                   [RFC3261]
   aib                    Authenticated Identity Body                                                                                     [RFC3893]
   early-session          the body describes an early communications session, for example, and [RFC2327] SDP body                         [RFC3959]
   recipient-list         The body includes a list of URIs to which URI-list services are to be applied.                                  [RFC5363]
   notification           the payload of the message carrying this Content-Disposition header field value is an Instant Message           [RFC5438]
                          Disposition Notification as requested in the corresponding Instant Message.
   by-reference           The body needs to be handled according to a reference to the body that is located in the same SIP message as    [RFC5621]
                          the body.
   info-package           The body contains information associated with an Info Package                                                   [RFC6086]
   recording-session      The body describes either metadata about the RS or the reason for the metadata snapshot request as determined   [RFC7866]
                          by the MIME value indicated in the Content-Type.

Content Disposition Parameters

   Registration Procedure(s)

 First Come First Served

   Reference
           [RFC2183]

   Available Formats
           [IMG]
           CSV

         Name                                                            Description                                                      Reference
   filename          name to be used when creating file                                                                                   [RFC2183]
   creation-date     date when content was created                                                                                        [RFC2183]
   modification-date date when content was last modified                                                                                  [RFC2183]
   read-date         date when content was last read                                                                                      [RFC2183]
   size              approximate size of content in octets                                                                                [RFC2183]
   name              original field name in form                                                                                          [RFC7578]
   voice             type or use of audio content                                                                                         [RFC2421]
   handling          whether or not processing is required                                                                                [RFC3204]
   preview-type      Internet media type (and parameters) of the preview output desired from a processor by the author of the MIME        [RFC7763]
                     content

Voice Parameter Values

   Registration Procedure(s)

 Not Defined

   Reference
           [RFC2421]

   Available Formats
           [IMG]
           CSV

             Value            Reference
   Voice-Message              [RFC2421]
   Voice-Message-Notification [RFC2421]
   Originator-Spoken-Name     [RFC2421]
   Recipient-Spoken-Name      [RFC2421]
   Spoken-Subject             [RFC2421]

Handling Parameter Values

   Registration Procedure(s)

 Not Defined

   Reference
           [RFC3204]

   Available Formats
           [IMG]
           CSV

    Value            Description           Reference
   required body must be understood        [RFC3204]
   optional body may be silently discarded [RFC3204]