Hello,
I think the refer-to can also have header parameters, then tobody
transformation should be used, which offers directly {tobody.user}.
The name-addr is subset of to-body, in general using tobody transformation
is safer when it is not sure there are header parameters or not.
Cheers,
Daniel
On Mon, Aug 14, 2023 at 2:47 PM Alex Balashov <[email protected]>
wrote:
> Hello,
>
> If I'm not mistaken, Refer-To is a name-address pair, so the best way to
> access the user part of the URI is:
>
> $(hdr(Refer-To){nameaddr.uri}{uri.user})
>
> i.e.
>
> if($(hdr(Refer-To){nameaddr.uri}{uri.user}) =~ "^011")
>
> -- Alex
>
> > On Aug 13, 2023, at 8:57 PM, David Cunningham <[email protected]>
> wrote:
> >
> > Hello,
> >
> > We want to check if the number in a REFER's Refer-To header begins with
> 011, and if so reject the request as not allowed. What would be the most
> effective way to do that?
> >
> > Thanks in advance,
> >
> > --
> > David Cunningham, Voisonics Limited
> > http://voisonics.com/
> > USA: +1 213 221 1092
> > New Zealand: +64 (0)28 2558 3782
> > __________________________________________________________
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> --
> Alex Balashov
> Principal Consultant
> Evariste Systems LLC
> Web: https://evaristesys.com
> Tel: +1-706-510-6800
>
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--
Daniel-Constantin Mierla - https://www.asipto.com
https://twitter.com/miconda - https://www.linkedin.com/in/miconda
Kamailio Advanced Training - https://www.asipto.com/u/kat
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