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RFC 5806, "Diversion Indication in SIP", March 2010

See Also: RFC 5806 w/ inline errata

Errata ID: 3177
Status: Verified
Type: Technical
Publication Format(s) : TEXT

Reported By: Brett Tate
Date Reported: 2012-04-04
Verifier Name: Nevil Brownlee
Date Verified: 2012-04-10

Section 4 says:

Diversion = "Diversion" ":" 1# (name-addr *( ";" diversion_params ))
diversion-params = diversion-reason | diversion-counter |
                   diversion-limit | diversion-privacy |
                   diversion-screen | diversion-extension

It should say:

Diversion = "Diversion" HCOLON diversion-params *(COMMA diversion-params)
diversion-params    = name-addr *(SEMI (diversion-reason /
                      diversion-counter / diversion-limit /
                      diversion-privacy / diversion-screen /


The original text did not comply with the format defined by RFC 4485 and RFC 3261. It also did not indicate where to find the #rule (such as within RFC 2543). Thus the ABNF for Diversion should either be modified or RFC 2543 should be referenced to help interoperability. The proposed new ABNF was provided by RFC 6044; it also changes ";" to SEMI which addresses the related LWS ambiguity concerning if RFC 3261 or RFC 2543 LWS rules should be followed.

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