Multiple SIP Reason Header Field Values, March 2023
- File formats:
- Also available: XML file for editing
- PROPOSED STANDARD
- RFC 3326
- R. Sparks
- sipcore (art)
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The SIP Reason header field as defined in RFC 3326 allows only one Reason value per protocol value. Experience with more recently defined protocols shows it is useful to allow multiple values with the same protocol value. This document updates RFC 3326 to allow multiple values for an indicated registered protocol when that protocol defines what the presence of multiple values means.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.