RE: [Sipping] 433 error response format.

When receiving 433 it's the UAC responsibility to announce the user that
other party of the call is blocking the call because of the anonymity of the
caller and the user in case he wants to make the call must remove his
anonymity from the new request. This request must be done as a user request
and not automatically by the UAC.

  _____  

From: Preethi.Sadasivan@aricent.com [mailto:Preethi.Sadasivan@aricent.com] 
Sent: Thursday, April 26, 2007 12:47 PM
To: sipping@ietf.org
Cc: Preethi.Sadasivan@aricent.com
Subject: [Sipping] 433 error response format.

Hi All, 
  I have a query with reference to the following lines from the draft
"draft-ietf-sip-acr-code-04.txt" 
for 433 error response Section 4. 

4 .UAC Behavior 

   A UAC receiving a 433 (Anonymity Disallowed) MUST NOT retry the 
   request without anonymity unless it obtains confirmation from the 
   user that this is desirable.  Such confirmation could be obtained 
   through the user interface, or by accessing user defined policy.  If 
   the user has indicated that this is desirable, the UAC MAY retry the 
   request without requesting anonymity. 

How will the UAS indicate the UAC that it has a desire for the request to 
be retried. Will this be communicated in some headers like that of
Retry-Header. 
Please throw some light on this issue.

Thanks and Regards,
Preethi..
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Preethi Sadasivan,
Software Engineer,
ARICENT ,
Bangalore.
tel: +91-80-41069118
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