Re: [Sip] Errant Proxy Behavior?

   From: Robert Sparks <rjsparks@nostrum.com>

   Now, for the particular transformation you're describing - it's not  
   legal. Replacing a %41 with an 'A' or vice-versa would be legal (but  
   unwise). "$", on the other hand, is special.

   The text in section 19.1.4 (URI Comparison) says:
   ...
      SIP and SIPS URIs are compared for equality
       according to the following rules:
   ...
	  o  Characters other than those in the "reserved" set (see RFC  
   2396
	     [5]) are equivalent to their ""%" HEX HEX" encoding.

   But

	  reserved    =  ";" / "/" / "?" / ":" / "@" / "&" / "=" / "+"
			 / "$" / ","

Hmmmm, I agree that this is what the RFCs say, but is it what we
really want?  That '%41' is expected to be equivalent to 'A' but '%24'
is *not* equivalent to '$', in a context where '$' is a character with
no exceptional semantics?  That seems like opening a big can of worms.

Dale

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