Re: [sipcore] 4244bis-05: tel: URIs

"Worley, Dale R (Dale)" <dworley@avaya.com> Fri, 17 June 2011 21:26 UTC

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From: "Worley, Dale R (Dale)" <dworley@avaya.com>
To: "Worley, Dale R (Dale)" <dworley@avaya.com>, Hadriel Kaplan <HKaplan@acmepacket.com>, Shida Schubert <shida@ntt-at.com>
Date: Fri, 17 Jun 2011 17:23:59 -0400
Thread-Topic: [sipcore] 4244bis-05: tel: URIs
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Subject: Re: [sipcore] 4244bis-05: tel: URIs
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How are tel: URIs handled?  From section 5, it looks like a tel: gets turned into a sip: if
Reason or Privacy needs to be applied:

   Note that since both the Reason and Privacy parameters are included
   in the hi-targeted-to-uri, these fields will not be available in the
   case that the hi-targeted-to-uri is a Tel-URI [RFC3966].  In such
   cases, the Tel-URI SHOULD be transformed into a SIP URI per section
   19.1.6 of [RFC3261].

But 10.2 makes it sound as if Reason isn't applied to tel:

   If the Reason header field is being added due to
   receipt of an explicit SIP response and the response contains any
   Reason header fields (see [RFC3326]), then the SIP entity MUST
   include the Reason header fields in the "headers" component of the
   hi-targeted-to-uri in the last hi-entry added to the cache, unless
   the hi-targeted-to-uri is a Tel-URI.  If the SIP response does not
   contain a Reason header field, the SIP entity MUST include a Reason
   header field, containing the SIP Response Code, in the "headers"
   component of the hi-targeted-to-uri in the last hi-entry added to the
   cache, unless the hi-targeted-to-uri is a Tel-URI.

Dale