wideband

Australia’s Telstra = Worlds Largest HDVoice Service Footprint

Telstra-Logo & HTC Desire SSteve Perich, also of Australia, pointed me to an older post on Telstra’s coprorate blog. It highlights the fact that earlier in the year they launched HDVoice capability across their mobile network. Given the size of their coverage area they claim to have the largest HDVoice footprint on the planet.

The blog post includes nice video that highlights not only the improvements to the audible frequency range, but also the fact that it’s possible to do a better of job of background noise suppression with the richer audio data provided by the HDVoice stream.

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Asterisk 10 In SSSSuuuuuuuper-Wideband!*

While I am not currently an Asterisk user I still try to stay in touch with what goes on in that realm. Earlier this week Rod Montgomery penned a post at the Digium blog entitled “Top 10 Tricks You Didn’t Know That Asterisk Could Do.”

The post is structured like a Top 10 list. Most of the items included are genuinely useful. However, right at the bottom in the #1 position, he highlights newfound support for very high-sample rate audio, aka Super-Wideband.

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HDVoice: On The Cheap & Analog RJ-11 Style

HDVoice RJ-11 Wall Plate A short while back I addressed the question of how DECT & CAT-iq may foster the broad deployment of HDVoice. At that time I described one possible scenario where carriers would deploy customer premises equipment (CPE) with an on-board cordless base station. Although a frontrunner, and the basis of Comcast’s (decidedly non-HD) HomePoint service, this is not the only approach afoot. There’s another possibility arising that involves conveying HDVoice over a plain old analog RJ-11 connection.

At first glance HDVoice and analog lines would certainly seem to be mutually exclusive. The common wisdom is that wideband telephony requires the use of an all-IP call path. This is in fact a generalization, and not absolutely true.

Firstly, it has long been possible to pass wideband audio, in the form of G.722 encoded media, over the PSTN by way of ISDN connections. Also known as BRI interfaces, an ISDN connection supports  up to two 64 kbps channels (bearer channels) and one D channel for the purposes of call setup & teardown signaling. High-quality voice using G.722 was one of the selling points of ISDN in the 1980s.

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Telesphere’s VideoConnect: Cloud-Based Video Conf Service for SMB

TelesphereVideoConnectLogo Tuesday I had an opportunity to try Telesphere’s new VideoConnect service. VideoConnect is a video conference service targeting what’s loosely called the “SMB” sector. That is, businesses smaller than typically use hardware-centric telepresence or video conferencing solutions.

To understand VideoConnect to helps to first frame up Telesphere, who are a Phoenix AZ based provider of hosted Voice/UC services based upon the Broadsoft cloud. Telesphere’s service offering also leverages their private, managed MPLS network. That means that they provide a private connection to end-user sites, ensuring that their services are delivered without issues of QoS/QoE.

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A Complicated Way To Join a VUC Call

counterpathDuring this weeks VUC call I was at KDKA-TV in Pittsburgh PA. I was sitting monitoring some equipment in the Art Department, which is  is physically located in the basement of the building at One Gateway Center.

There in the basement my cell phone was only able to get an EDGE connection to T-Mobile. Of course, CBS won’t let me on their network with my laptop or netbook. As a result, all week long I’ve been making use of my now aged Sprint 3G Mifi for general internet access.

Last week I installed the very latest version of Counterpath’s Bria Android Edition on my G2. To this point I’d only used it to make a couple of test calls around my office. This day I used it to join the ZipDX wideband conference bridge.

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