[Dundi] DUNDI for inter carrier exchange

[Brian West]

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.
>>
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