[Serusers] NAT contat rewrite

[Atle Samuelsen]

* Linus Surguy <linus at magrathea-telecom.co.uk> [040718 19:01]:
> > On Jul 18, 2004 at 11:22, Linus Surguy <linus at magrathea-telecom.co.uk>
> wrote:
> > > > Contacts are used to advertised wherebouts for subsequent in-dialog
> > > > requests coming back to your UAC. For that reason, I don't entirely
> > > > understand why the UAC includes Contact in CANCEL at all -- all in all
> > > > CANCEL is used to discontinued estabslishment of a dialog. Anyhow,
> > > > it should not matter the Contact content is invalid since there is no
> > > > use for the header field in this case at all.
> > >
> > > Sorry, just realised that in a half-awake state I typed rubbish. I meant
> > > that the 'call-id' was not rewritten - don't know why I mentioned
> contact!
> > > (In the INVITE to the Cisco it is blah at 213.x.x.x and in the CANCEL to
> Cisco
> > > it is blah at 10.x.x.x
> >
> > Then it's even stranger. ser/nathelper doesn't re-write the callid.
> > Maybe you have a nat box on the way, which is trying to be smart and fix
> > sip messages.
> 
> Oh great! This means that this is another broken 'feature' in the Draytek
> Vigor 2600 ADSL router.
>

Hey, if you have problems with the draytek router, I know the norwegian
importer quite well, Give me a full report, and I'll send him it

- Atle