Hello, can anyone please give me an expert opinion on possible extensions of "handling" parameter defined in RFC3204/RFC3459? Is it appropriate to extend and use the "handling" parameter of Content-Disposition header of a MIME body inserted in a SIP request to signal a particular action which the sender requests from the recipient? For example - if the "handling" parameter contained value "XYZ", the SIP request recipient would do a special action ActionXYZ using the MIME body. If the MIME body was included in the SIP request without the "handling" parameter, the recipient would NOT do the special action XYZ and instead would just store or render the MIME body. AFAIK, RFC3204 defines parameter "handling" of Content-Disposition header of a MIME body with two defined parameter values "required" and "optional" and allows for possible future extensions. RFC3204 also states "The handling parameter, handling-parm, describes how the UAS should react if it receives a message body whose content type or disposition type it does not understand". RFC3459 says "The protocol described here is identical in functionality to RFC 3204 with respect to SIP.". Kind regards Ivo Sedlacek Siemens PSE CZ TMM MMA8 phone: +420 5 3877 6532 <tel:+420543106532> email: [EMAIL PROTECTED], [EMAIL PROTECTED]
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