_______________________________________
From: [email protected] 
[[email protected]] On Behalf Of Nitin Kapoor 
[[email protected]]

To: sip:[email protected] <sip%[email protected]>

_______________________________________________

In general, a SIP element should not consider the value of the To header.  
However, the To header is required to conform to a specific syntax, and this To 
header does not.  The basic structure for this type of To header is 
"display-name <SIP-URI>".  However, if display-name is not quoted, it is 
restricted to being a "token", and "token" may not contain ":" or "@".  The 
text between <...> is supposed to be a SIP URI, but the ":" is replaced by 
"%3A", and there is no escaping defined for that position.  See section 25.1 of 
RFC 3261 for the details.

So until you correct the To header (who is generating it?) there is no reason 
to expect any SIP element to accept the request.

Dale

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