Hi Hadriel,

Yes, that is one of the headaches. :)  


> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]] On 
> Behalf Of 
> > Brett Tate
> > Sent: Thursday, December 18, 2008 6:26 PM
> > To: Vijay K. Gurbani; [email protected]
> > Subject: Re: [Sip] Question regarding conflicting grammar 
> for IPV6 SIP 
> > URI andRFC 3986
> >
> > Intentional or not, the sip-uri (excluding IPv6reference) 
> appears to 
> > not violate extending rfc2396's absoluteURI because the 
> definition was 
> > a structured subset of opaque_part.  However the introduction of 
> > brackets to enclose an IPv6 address causes the sip-uri to 
> no longer be 
> > a valid absoluteURI (rfc2396) or absolute-URI (rfc3986).
> >
> > I'm currently not sure if a fix is really needed or how best to 
> > correct it.  Escaping the brackets might work; however that might 
> > cause more headaches.
> 
> Section 19.1.2 of 3261:
>    Note that character escaping is not allowed in the host 
> component of
>    a SIP or SIPS URI (the % character is not valid in its expansion).
> 
> -hadriel
> 
> 
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