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RE: DUNDi

Yes - I think I responded before I had spent enough time looking at the site
- I will do more research.

Steve


-----Original Message-----
From: Dave Siegel [mailto:dave@siegelie.com] 
Sent: Thursday, October 21, 2004 12:39 PM
To: Steve Heap
Cc: 'Irwin Lazar'; 'VoIP Peering'
Subject: Re: DUNDi


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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