Thanks Inaki,
Any reference for this?
Steve

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Iñaki Baz 
Castillo
Sent: 02 February 2010 11:47
To: [email protected]
Subject: Re: [Sip-implementors] Lower case hex in escaped chars

El Martes, 2 de Febrero de 2010, Stephen Paterson escribió:
> Hi all,
> 
> >From RFC 2234:
> 
> HEXDIG         =  DIGIT / "A" / "B" / "C" / "D" / "E" / "F"
> 
> >From RFC 3261:
> 
> escaped     =  "%" HEXDIG HEXDIG
> 
> 
> 
> We've come across a problem with another UA that presents its HEXDIGs in
> lower case. Does anyone know of any potential interop problems if I
> relax the upper case requirement of HEXDIG? I can't think of any but
> thought I'd check here.

Your interpretation is wrong. SIP BNF grammar is case insensitive by default, 
"A" is equivalent to "a".


-- 
Iñaki Baz Castillo <[email protected]>

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