What is the Call Control UUI Service for SIP (a.k.a. “CUSS”) Working Group within the IETF all about? What is “user-to-user information”(UUI)? Why should you care about it? What would standardizing UUI do for SIP systems?

At the SIPNOC event in April 2011, Voxeo’s Dan York sat down with Alan Johnston, lead author of one of the primary drafts in the CUSS working group, to understand what CUSS is all about, what problems it is aiming to solve, the timeframe it is working on and much more.

More info about CUSS can be found here:

• CUSS Working Group charter
• Internet-Drafts related to CUSS
• Mailing list for those interested in monitoring or participating in CUSS

The CUSS working group was formed in September 2010 and participation in the group is open to anyone.

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This Voxeo podcast can be found on the web at http://blogs.voxeo.com/ett. If you have comments or feedback about this show, you can either leave comments here on the show blog site or email Dan York.

What is next for the Blink SIP client / softphone? What is AG Projects all about? At ITEXPO, host Dan York caught up with AG Projects Founder and CEO Adrian Georgescu and spoke about the Blink SIP client (Adrian doesn’t call it a “softphone”) and about the other work of AG Projects.

To learn more and download Blink for Mac OS X or Windows, you can visit http://icanblink.com/

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Wouldn’t it be great if you could connect via video over IP to someone at another company? Or to be able to use a wideband audio codec to have a richer sound to your calls? Sure, you can do this today with Skype… but not with your SIP-based or other IP-based IP-PBX or communications server. We don’t have any easy way of connecting with someone directly across the IP network… instead we wind up placing calls over the standard PSTN – even if both recipients could communicate over IP.

There are several different ideas out there about how to solve this, but one of the more interesting to me is the “VIPR” approach suggested by Cisco Systems and now involving a few other companies. While at ITEXPO last week in Miami, I (Dan York) had a chance to interview Cisco’s Cullen Jennings who has been very involved with the VIPR effort.

Is VIPR, a.k.a.”Verification Involving PSTN Reachability”, as journalist Doug Mohney said, “the big hack to get around the lack of direct SIP peering between Tier 1 service providers“? How does it work? How can you learn more? (Hint: start with this Internet draft: draft-rosenberg-dispatch-vipr-overview) How can you get involved?

Watch to learn more…

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This Voxeo podcast can be found on the web at http://blogs.voxeo.com/ett. If you have comments or feedback about this show, you can either leave comments here on the show blog site or email Dan York.

Have you wanted to use a VoIP softphone from your iPhone or iPad? Sure, Skype is available, but what if you want to use a softphone that works with SIP and can connect to a corporate IP-PBX? In this episode, host Dan York reviews the new Bria softphone for the iPhone that was released this week by CounterPath Corp. He shows how it works, how it can connect to applications running on Voxeo’s Prophecy Hosting or Tropo platforms and offers some other comments about the app.

The Bria app costs $3.99 in the iPhone AppStore. More info can be found at: http://www.counterpath.com/bria-iphone-edition.html

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This Voxeo podcast can be found on the web at http://blogs.voxeo.com/ett. If you have comments or feedback about this show, you can either leave comments here on the show blog site or email Dan York.

What is the SIPit test event all about? How does it make communications systems better? What do participants do at the event? How can companies get involved? To answer all those questions and more, host Dan York interviewed SIPit coordinator Robert Sparks at the SIPit 25 event held in September 2009 at the University of New Hampshire InterOperability Lab (IOL) in Durham, NH, USA.

More information about SIPit can be found at http://www.sipit.net/
Many thanks to Robert for agreeing to the interview after a long day of testing. Robert has also posted a summary of the SIPit25 event at:
http://www.ietf.org/mail-archive/web/rai/current/msg00720.html

You can download or play the podcast here (in Quicktime):

Emerging Tech Talk #035 - Robert Sparks about SIPit [ 6:59 ] Play Now | Play in Popup | Download

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This Voxeo podcast can be found on the web at http://blogs.voxeo.com/ett. If you have comments or feedback about this show, you can either leave comments here on the show blog site or email Dan York.

Technorati Tags: dan york, danyork, emerging communications, emerging tech talk, emerging technology, emergingtechtalk, ett, voxeo, prophecy, speechtek

Yesterday Skype announced the beta of their “Skype For SIP” service that will allow Skype users to call premise call servers/IP-PBXs via SIP and for those servers to make outbound calls to PSTN phone numbers using Skype’s network and at Skype’s rates. In this episode, host Dan York talks about the announcement and what it all means for Skype interoperability (or lack thereof). Dan also wrote at length about Skype For SIP over at:

http://www.disruptivetelephony.com/2009/03/skype-tears-down-more-walls-with-skype-for-sip.html

You can download or play the podcast here (in Quicktime):

Emerging Tech Talk #028 - Skype For SIP [ 6:12 ] Play Now | Play in Popup | Download

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This Voxeo podcast can be found on the web at http://blogs.voxeo.com/ett. If you have comments or feedback about this show, you can either leave comments here on the show blog site or email Dan York.

Technorati Tags: dan york, danyork, skype, emerging tech talk, emerging technology, emergingtechtalk, ett, sip, telephony, communication

What is the “rich communication experience” that we are trying to build? Why can’t that experience work over today’s Public Switched Telephone Network (PSTN)? What do we need to make this experience happen?

In this 10-minute presentation at the Emerging Communication Conference (eComm), I sought to answer the question of why we want to move beyond the PSTN – outlining the kind of experience we are seeking, the pieces of the communications puzzle that are currently available, the issues we need to address and the roadblocks that are in place. I end asking people to think about what is the experience we want to build – and to bring more people into that conversation to make it happen.

This talk began forming last summer when eComm organizer Lee Dryburgh made a comment on the internal eComm Program Advisory Board mailing list about how he was tired of people always taking shots at how poor the PSTN was without offering a few of what we were aiming to achieve. At about the same time, fellow blogger Aswath Rao asked why “VoIPers wanted to kill off the PSTN.” I decided to put together an answer – and the result was this presentation.

A text version of the talk will be available on my DisruptiveTelephony.com blog in the next few days and the slides are available on SlideShare and also embedded below.

And yes, all 54 slides were delivered in 10 minutes. (It’s a certain style of presenting.)

Comments and feedback on this presentation are definitely appreciated.

You can download or play the podcast here (in Quicktime):

Emerging Tech Talk #027 - The Park Bench Manifesto - Why We Want To Kill Off The PSTN [ 10:23 ] Play Now | Play in Popup | Download

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The slides to go along with this talk are available here, although to be honest they really need to be synced to the audio to be understood (which I’ll do at some point):

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This Voxeo podcast can be found on the web at http://blogs.voxeo.com/ett. If you have comments or feedback about this show, you can either leave comments here on the show blog site or email Dan York.

Technorati Tags: dan york, danyork, emerging communications, emerging tech talk, emerging technology, emergingtechtalk, ett, ecomm, telephony, communication

What is Peer-to-Peer SIP (P2PSIP) all about? Who would use it? Is it really just an attempt to make an open standards Skype? What standards are being created?

All those questions and more were discussed when host Dan York caught up with David Bryan, co-chair of the IETF P2PSIP Working Group, out at the IETF 73 meeting in November 2008 in Minneapolis, MN. More information about P2PSIP can be found at http://www.p2psip.org/

You can download or play the podcast here:

Emerging Tech Talk #011 - David Bryan about P2PSIP [ 10:55 ] Play Now | Play in Popup | Download

Or you can watch on YouTube at:

This interview with David Bryan was recorded at the IETF 73 meeting in Minneapolis, Minnesota, on November 20, 2008.

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This Voxeo podcast can be found on the web at http://blogs.voxeo.com/ett. If you have comments or feedback about this show, you can either leave comments here on the show blog site or email Dan York.

Technorati Tags: ietf, ietf73, p2psip, sip, danyork, dan york, david bryan, ett, emerging tech talk, emerging technology, voxeo

What is the SIP Forum? What does it do? Who can join? What is its relation to the IETF? In this show Dan York interviews SIP Forum Chairman Eric Burger about all of these topics and more. You can learn more about the SIP Forum and join as a (free) participant member at http://www.sipforum.org/.

You can download or play the podcast here:

Emerging Tech Talk #007 - Eric Burger of SIP Forum [ 8:30 ] Play Now | Play in Popup | Download

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This interview with Eric Burger was recorded at the IETF 73 meeting in Minneapolis, Minnesota, on November 19, 2008.

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This Voxeo podcast can be found on the web at http://blogs.voxeo.com/ett. If you have comments or feedback about this show, you can either leave comments here on the show blog site or email Dan York

Technorati Tags: ietf, ietf73, sip, danyork, dan york, eric burger, sip forum, ett, emerging tech talk, emerging technology, voip, voxeo

In this final show from IETF 73 in Minneapolis, Dan York offers a few final thoughts about the IETF, IPv6 and NAT, and the use of ENUM for resolving SIP addresses.

You can download or watch the show here:

Emerging Tech Talk #006 - Last Day of IETF 73 [ 4:57 ] Play Now | Play in Popup | Download

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Technorati Tags: ietf, ietf73, sip, danyork, dan york, ett, emerging tech talk, emerging technology, voip, voxeo