[Dundi] DUNDI for inter carrier exchange

[Simon Woodhead]

Which leads me on to my next question... In all the documents I've seen
calls are switched to Dundi and resolves across all primary peers.
Presumably this is going generate a ridiculous level of traffic for those
high up the tree? Are you guys who are using this on a large scale doing any
kind of prequalification or filtering of lookups, i.e. categorising peers,
perhaps on country or area code, and only firing requests at the relevent
ones for the number concerned?

Simon

On 7/24/06, Brian West <brian.west at mac.com> wrote:
>
> I really don't know why DUNDi has even been considered as something
> that can be used on a global scale.  It isn't something that is
> efficient nor is it something that I would trust to scale beyond the
> enterprise level.
>
> /b
>
>
> On Jul 24, 2006, at 11:06 AM, Jim Dalton wrote:
>
> > Hi Simon,
> >
> > Researching DUNDi opportunities is on our product roadmap for Q4 of
> > this
> > year.  We think your idea makes economic sense for CLECs
> > (Competitive Local
> > Exchange Carriers) in the US.  We would like to collaborate with
> > you on your
> > effort.  We will be able to contribute some hands-on effort
> > starting in late
> > September.
> >
> > Until, then we look forward to discussion about what is needed for
> > DUNDi to
> > be useful for the carrier market.
> >
> > Jim Dalton
> > VoIP Routing, Accounting, Security
> > 1.404.526.6053
> > www.TransNexus.com
> >
> >
> >> -----Original Message-----
> >> From: dundi-bounces at lists.digium.com
> >> [mailto:dundi-bounces at lists.digium.com] On Behalf Of Simon Woodhead
> >> Sent: Saturday, July 22, 2006 5:07 AM
> >> To: dundi at lists.digium.com
> >> Subject: [Dundi] DUNDI for inter carrier exchange
> >>
> >> Hi folks,
> >>
> >> I'm new to the list today so please forgive me if this is the
> >> wrong place to post this.
> >>
> >> I've been looking at DUNDI for a while and have implemented
> >> it internally. It is very impressive so thanks and praise to
> >> all those involved.
> >>
> >> The next stage for us is to implement it externally but
> >> whilst thinking about that something comes to mind. Is there
> >> scope within the specification to advertise rates, or has it
> >> already been discussed?
> >>
> >> Before you set about me, let me explain:
> >>
> >> - Yes, there is the obvious 'live LCR' type scenario where
> >> multiple termination providers could advertise their rates
> >> and any that are interconnected could be sent the call. That
> >> has a place but isn't the bigger application.
> >>
> >> - Of much more interest is the inter-exchange of traffic
> >> between carriers. I'm in the UK so the following may not be
> >> appropriate elsewhere but every call in or out of a carriers
> >> network results in a payment to/from the peer. The sum of
> >> those makes up the outgoing call cost but, more relevantly,
> >> represents an income on the incoming call.
> >> Currently, a carrier is better off receiving the call through
> >> PSTN than advertising a VoIP route through DUNDI but if they
> >> could publish a rate then their peers could choose the least
> >> cost route. Implicitly this would lead to lower costs for
> >> both parties even if the direct cost/revenues remained
> >> unchanged - carrier a could route to carrier c over VoIP,
> >> avoiding carrier b. Carrier b receives the call directly and
> >> gets the same income as he would have done from carrier c
> >> without the costs of the traditional interconnect.
> >>
> >> The second option is possible now between any two peers but I
> >> do think if it was built into a protocol like DUNDI it could
> >> give it significant traction and make the benefits of peering
> >> two-way. Taking my company as an example, it only makes sense
> >> to advertise routes to numbers on which we receive no ingress
> >> income. The vast majority, even where they terminate to VoIP,
> >> would not make sense as we'd lose the income.
> >> Granted, that income subsidises an expensive interconnect and
> >> the call would be coming over a much lower cost one, but
> >> there remains a real cost. Further, we offer numbers where
> >> the income directly funds another service such as overseas
> >> diverts which it would be impossible to advertise. If we
> >> could advertise them with a rate for interconnected peers,
> >> other participants could send traffic through on
> >> inter-carrier terms and we'd have the same income on a lower
> >> cost base.
> >>
> >> It strikes me that this would really give the system traction
> >> and cause the kind of disruption to the traditional
> >> marketplace that is long overdue and ultimately benefiting
> >> the consumer.
> >>
> >> Looking forward to your comments.
> >>
> >> Kind regards,
> >> Simon
> >>
> >> PS - We'd be happy to make UK toll-free available as well as
> >> publish our own voip terminating numbers if a local peer
> >> could contact me off-list.
> >>
> >> _______________________________________________
> >> Dundi mailing list
> >> Dundi at lists.digium.com
> >> http://lists.digium.com/mailman/listinfo/dundi
> >>
> >>
> >
> >
> > _______________________________________________
> > Dundi mailing list
> > Dundi at lists.digium.com
> > http://lists.digium.com/mailman/listinfo/dundi
>
> _______________________________________________
> Dundi mailing list
> Dundi at lists.digium.com
> http://lists.digium.com/mailman/listinfo/dundi
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.digium.com/pipermail/dundi/attachments/20060725/bfd47dd2/attachment-0001.htm