[OpenSIPS-Users] Number portability

[Iñaki Baz Castillo]

El Viernes, 10 de Julio de 2009, Alex Balashov escribió:
> > npdi and rp are *userinfo* parameters (in fact they are TEL URI
> > paremeters so when converting to SIP URI they become part of the userinfo
> > part). http://www.tech-invite.com/Ti-sip-abnf.html#teluri
> >
> > So, if the original RURI is:
> >   sip:+12345678 at mydomain.org
> >
> > and OpenSIPS modifies it to:
> >   sip:+12345678;npdi=123;rn=456 at mydomain.org
> >
> > then both RURI's are differents and the softsiwtch won't consider it a
> > loop.
> >
> > However, if the parameters are added as SIP URI parameters (after the
> > hostpart) the it would be a loop (except if they are maddr, user, ttl).
>
> How does that change the other logical attributes of a call leg, i.e.
> Call ID GUID, From tag, CSeq, etc?

If the RURI changes, then it's *not* a loop, but a spiral. Re-read the 
appropiate section in RFC 3261 :)


-- 
Iñaki Baz Castillo <ibc at aliax.net>