RFC 3515, "The Session Initiation Protocol (SIP) Refer Method", April 2003

Note: This RFC has been updated by RFC 7647, RFC 8217

Errata ID: 4898
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Marianne MOHALI
Date Reported: 2017-01-03
Verifier Name: Orie Steele
Date Verified: 2024-03-29

Section 2.1 says:

Refer-To: <sip:bob@biloxi.example.net?Accept-Contact=sip:bobsdesk.
       biloxi.example.net&Call-ID%3D55432%40alicepc.atlanta.example.com>

It should say:

Refer-To: <sip:bob@biloxi.example.net?Accept-Contact=sip:bobsdesk.
       biloxi.example.net&Call-ID=55432%40alicepc.atlanta.example.com>

Notes:

The "=" between the header name (hname) and the value (hvalue) in the headers component of the URI does not have to be in the percent-coded format as part of the ABNF of the headers component defined in RFC3261:
sip:user:password@host:port;uri-parameters?headers
headers = "?" header *( "&" header )
header = hname "=" hvalue
hname = 1*( hnv-unreserved / unreserved / escaped )
hvalue = *( hnv-unreserved / unreserved / escaped )
hnv-unreserved = "[" / "]" / "/" / "?" / ":" / "+" / "$"

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