[Technical Errata Reported] RFC3665 (2740)

[RFC Errata System]

The following errata report has been submitted for RFC3665,
"Session Initiation Protocol (SIP) Basic Call Flow Examples".

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You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=3665&eid=2740

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Type: Technical
Reported by: Niels Widger <***@iol.unh.edu>

Section: 3.8

Original Text
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F11 CANCEL Proxy 1 -> Proxy 2

CANCEL sip:***@atlanta.example.com SIP/2.0
Via: SIP/2.0/UDP ss1.atlanta.example.com:5060;branch=z9hG4bK2d4790.1
Max-Forwards: 70
From: Alice <sip:***@atlanta.example.com>;tag=9fxced76sl
To: Bob <sip:***@biloxi.example.com>
Call-ID: ***@atlanta.example.com
CSeq: 1 CANCEL
Content-Length: 0


Corrected Text
--------------
F11 CANCEL Proxy 1 -> Proxy 2

CANCEL sip:***@biloxi.example.com SIP/2.0
Via: SIP/2.0/UDP ss1.atlanta.example.com:5060;branch=z9hG4bK2d4790.1
Max-Forwards: 70
From: Alice <sip:***@atlanta.example.com>;tag=9fxced76sl
To: Bob <sip:***@biloxi.example.com>
Call-ID: ***@atlanta.example.com
CSeq: 1 CANCEL
Content-Length: 0


Notes
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The Request-URI of message F11 is incorrect according to RFC 3261 Section 9.1: "The following procedures are used to construct a CANCEL request. The Request-URI, Call-ID, To, the numeric part of CSeq, and From header fields in the CANCEL request MUST be identical to those in the request being cancelled, including tags".

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RFC3665 (draft-ietf-sipping-basic-call-flows-02)
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Title : Session Initiation Protocol (SIP) Basic Call Flow Examples
Publication Date : December 2003
Author(s) : A. Johnston, S. Donovan, R. Sparks, C. Cunningham, K. Summers
Category : BEST CURRENT PRACTICE
Source : Session Initiation Proposal Investigation
Area : Real-time Applications and Infrastructure
Stream : IETF
Verifying Party : IESG
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