[SIPForum-discussion] rfc-conform contact-header

[Olaf Bahr]

Hi Uli,

according to RFC3261 I can't believe your example to be rfc-conform:

20.10 Contact

   A Contact header field value provides a URI whose meaning depends on
   the type of request or response it is in.

   A Contact header field value can contain a display name, a URI with
   URI parameters, and header parameters.

   This document defines the Contact parameters "q" and "expires".
   These parameters are only used when the Contact is present in a
   REGISTER request or response, or in a 3xx response.  Additional
   parameters may be defined in other specifications.

   When the header field value contains a display name, the URI
   including all URI parameters is enclosed in "<" and ">".  If no "<"
   and ">" are present, all parameters after the URI are header
   parameters, not URI parameters.  The display name can be tokens, or a
   quoted string, if a larger character set is desired.

   Even if the "display-name" is empty, the "name-addr" form MUST be
   used if the "addr-spec" contains a comma, semicolon, or question
   mark.  There may or may not be LWS between the display-name and the
   "<".

   These rules for parsing a display name, URI and URI parameters, and
   header parameters also apply for the header fields To and From.

      The Contact header field has a role similar to the Location header
      field in HTTP.  However, the HTTP header field only allows one
      address, unquoted.  Since URIs can contain commas and semicolons
      as reserved characters, they can be mistaken for header or
      parameter delimiters, respectively.

   The compact form of the Contact header field is m (for "moved").

   Examples:

      Contact: "Mr. Watson" <sip:watson at worcester.bell-telephone.com>
         ;q=0.7; expires=3600,
         "Mr. Watson" <mailto:watson at bell-telephone.com> ;q=0.1
      m: <sips:bob at 192.0.2.4>;expires=60




Mit freundlichem Gruß
Olaf Bahr

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-------- Original Message --------
Subject: [SIPForum-discussion] rfc-conform contact-header (13-Feb-2016 21:53)
From:    Guenter, Uli (Uli) <guenter at avaya.com>
To:      olaf.bahr at bahrkommunikation.de

> Hello,
> 
> I would like to know your thoughts if this contact header is rfc-conform or 
> not:
> 
> Contact: <sip:wsg1TLz4Zbiqx7a2mhQNOjxYO2B1KqLAjaPkzVN7mUnDRqMkzvk4H3Bcvg/
> YWyDZ at th1>
> 
> 
> Thanks
> Uli Guenter
> 
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To: guenter at avaya.com
    discussion at sipforum.org


To: guenter at avaya.com
    discussion at sipforum.org