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Status: Verified (1)

RFC 3891, "The Session Initiation Protocol (SIP) "Replaces" Header", September 2004

Errata ID: 7141
Status: Verified
Type: Editorial
Publication Format(s) : TEXT
Reported By: Aaron Brumpton
Date Reported: 2022-09-28
Verifier Name: RFC Editor
Date Verified: 2022-09-29

Section section-7.1 says:

SIP/2.0 180 Ringing
   To: <sip:bob@example.org>;tag=6472
   From: <sip:alice@example.org>;tag=7743
   Call-ID: 425928@phone.example.org
   CSeq: 1 INVITE
   Contact: <sip:bob@bobster.example.org>

   Message *3: Bob in lab -> Alice

   INVITE sip:alice@phone.example.org
   To: <sip:alice@example.org>
   From: <sip:bob@example.org>;tag=8983
   Call-ID: 09870@labpc.example.org
   CSeq: 1 INVITE
   Contact: <sip:bob@labpc.example.org>
   Replaces: 425928@phone.example.org
    ;to-tag=7743;from-tag=6472;early-only

It should say:

SIP/2.0 180 Ringing
   To: <sip:bob@example.org>;tag=6472
   From: <sip:alice@example.org>;tag=7743
   Call-ID: 425928@phone.example.org
   CSeq: 1 INVITE
   Contact: <sip:bob@bobster.example.org>

   Message *3: Bob in lab -> Alice

   INVITE sip:alice@phone.example.org
   To: <sip:alice@example.org>
   From: <sip:bob@example.org>;tag=8983
   Call-ID: 09870@labpc.example.org
   CSeq: 1 INVITE
   Contact: <sip:bob@labpc.example.org>
   Replaces: 425928@phone.example.org
    ;to-tag=6472;from-tag=7743;early-only

Notes:

The To and From tags are mismatched in the Replaces header

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