Re: DUNDi

[Dave Siegel <dave@siegelie.com>]

Well, it wouldn't be necessary for the end-user to be involved in this.

What if a carrier chose to tap DUNDi to see if a route was available
before alt routing to a known IP vendor, before alt routing to a known
TDM vendor?

Any time you get options for terminating a call in an enhanced fashion,
a carrier should be highly interested in that.  This can all happen behind
the curtain, invisible to the end-user.

Dave

On Tue, Oct 19, 2004 at 08:49:03PM -0400, Steve Heap reportedly typed:
> Irwin
> 
> Interesting - I hadn't heard of this development.
> 
> However, I think this is at the geeky end of the market place - the majority
> of customers don't mind paying $19.95 per month for unlimited phone service
> in the US, Canada and Western Europe with voice mail and caller ID included.
> To then take this one step further to make some PC driven look-up into a
> database to find that you can connect to a friend for nothing is not what
> 80% of the population will do. I'm semi-geeky, and I don't think I will do
> that. I have Skype, but use my normal VoIP phone to call friends as it is
> much easier to do that that see if they are logged into Skype.
> 
> I think the general direction will be for service providers to continue to
> provide services to end users, and for those service providers to look for
> ways to reduce costs - partly to make cash flow positive businesses and
> partly to continue to reduce costs to end users. They will use private and
> "infrastructure" peering arrangements to do that.
> 
> I do have my PowerPoint slides ready for presentation at VON this week - am
> I allowed to send an attachment to the group?
> 
> Steve
> 
> 
> 
> -----Original Message-----
> From: owner-voip-peering@psg.com [mailto:owner-voip-peering@psg.com] On
> Behalf Of Irwin Lazar
> Sent: Tuesday, October 19, 2004 3:56 PM
> To: VoIP Peering
> Subject: DUNDi
> 
> 
> FYI (Any thoughts? - isn't this what ENUM was supposed to do?)
> 
> ---- http://voxilla.com/voxstory107-nested-order0-threshold0.html
> 
> Asterisk Guru May Have Solved Interconnection Dilemna
> 
> By DAVID HOLUB
> for VOXILLA.COM
> 
> What has been a longtime complaint of many VoIP users - the limited ability
> of users on separate IP networks to call each other over a direct IP-to-IP
> connection - may well be addressed through a new number discovery protocol
> developed by Mark Spencer, the lead architect behind the highly regarded
> open source PBX system, Asterisk.
> 
> The Distributed Universal Number Discovery, or DUNDI, says Spencer, "solves
> one of the holy grails of Voice over IP, direct IP connectivity."
> 
> DUNDI, says Spencer, is a "true peer-to-peer" system that allows users of
> disparate telephone networks to find each other at a regular phone number
> simply by querying tables maintained on each network's server.
> 
> Already, said Spencer, a number of commercial and free service providers
> have agreed to the standard, including a General Peering Agreement ("GPA")
> that is available on a new web sited Spencer developed for the project,
> www.dundi.com.
> 
> Among the service providers Spencer lists as supporting DUNDI are
> VoicePulse, SIPPhone, Free World Dialup, Telesthetics, Nufone and SpeakUp.
> 
> Once the providers put up complete tables of their users, including phone
> number, device MAC addresses and URL identifiers, a user on one service
> participating dialing a user on a separate participating service will be
> able to make a voice connection while bypassing the PSTN system.
> 
> Currently, for example, a call between a Nufone customer and a VoicePulse
> customer, travels over the traditional PSTN between the Nufone and
> VoicePulse servers.
> 
> Using DUNDI, the PSTN portion of the call is unnecessary as the caller would
> be able to find the recipient's phone directly via IP using peering tables.
> 
> "This is what VoIP was supposed to be about," said Spencer.
> 
> DUNDI, said Spencer, is designed to work with or apart from the DNS-based
> ENUM system, which maintains a centralized table of participants on a single
> database. "DUNDI doesn't need a central repository, such as ENUM," said
> Spencer. "But it can supplement ENUM by interconnecting ENUM repositories."
> 
> Spencer says the difference between ENUM and DUNDI is similar to the
> difference between looking up a number in a phone book and asking a friend
> for the right number to call.
> 
>  Spencer says it will take a while before DUNDI's effectiveness can be
> measured. "We don't have proof that it will work, but we don't have proof
> that it won't work," he said. "Time will tell but I have high hopes."
> 
> Service providers have been reluctant to enter into interconnection
> agreements with other providers, even though such agreements would lead to
> lower operating costs and higher quality voice communications by bypassing
> the PSTN system. Interconnection agreements would require some sort of
> sharing of customer information, not something parties in the highly
> competitive VoIP environment were willing to do.
> 
> By allowing participants to store there own database of users, and not
> requiring the information in the database to be shared, DUNDI helps overcome
> the main objection.
> 
> Jeff Pulver, of Free World Dialup, was quick to embrace DUNDI. "No matter
> how established you get, you must be aware that disruption will happen,"
> Pulver said. "DUNDI is disruptive and we support it."
> 
>  
> 
> -- 
> Irwin Lazar, CISSP
> Senior Analyst, Burton Group
> ilazar@burtongroup.com
> Phone: 703-742-9659
> AIM/iChat: imlazar
> Skype: imlazar
> sip:452401@fwd.pulver.com
> 
> 
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-- 
Dave Siegel                     http://www.siegelie.com/people/dsiegel/
Oro Valley, AZ

Cleaning your house while your kids are still growing is like
shoveling the walk before it stops snowing.
                -- Phyllis Diller

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