wideband

New Series: Gigaset SIP/DECT Systems Overview

siemens-a580ip-240For several years, certainly as long as I have been writing this blog, I have been hunting for a better cordless IP telephony solution for my home office. Cordless mobility is increasingly a critical feature for home office and small business users. While we have a satisfactory solution in place at the moment, there’s certainly room for improvement.

Siemens, a multi-national company headquartered in Germany, has a new subsidiary called Gigaset US specifically to market some of their range of consumer electronics in North America. This new company is headquartered in Dallas, Texas.

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Optimum Lightpath Upgrades To HD Voice

Telephony Online has today's release about Optimum Lightpath offering wideband business class voice service. Doug Mohney, aka Doug On IP Comm, has a bit about these events as well. His headline is "HD Communications – Cablevision fired the first business HD…

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Wideband Telephony On Mobile Phones

nokia-n97-side-by-sideOver at VoIP Supply’s VoIP Insider Cory Andrews poses a good question, ” When Will HD Audio Come to Mobile Phones?” He frames it up in the context of having first hand experience with enterprise class wideband hardware like the new Polycom VVX-1500 Media Phone, but then recasts the question in the mobile space.

With 3G here and 4G coming, the bandwidth is certainly there to support HD calling on mobile devices. Seems all that is currently lacking is a traditional carrier or mobile VoIP provider and a handset manufacturer with a wireless device that supports G.722 or alternative wideband codecs. I wonder if there are existing mobile phone devices with a large deployed base that could be made “HD capable” via firmware update?

I’m certainly not  an expert in all facets of the technology involved, but I have been investigating wideband for some time, and tapping many sources along the way. After a while all the little pieces of information start to form a more complete picture of what’s involved.

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Mythbusting HD Voice: Frequency Response vs Data Rate

snom_820_links_hoch_perspektive_200pxOne common misconception that keeps coming up is the assertion that the higher quality audio available through the use of wideband telephony (aka HDVoice) requires more bandwidth on the network. This is simply not true.

The terminology gets confusing for some folks. On the one hand we’re talking about frequency response of the audio channel being much greater, 50 Hz to >7 KHz for most wideband codecs, as compared to 300 Hz to 3.4KHz for the reference standard G.711. All that extra information has to go somewhere, right?

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HDVoice Summit: A Beginning

polycom_ip650_256This past week I had the pleasure of attending The HD Communication Summit hosted by Jeff Pulver in New York City. The summit was a one day event intended to rally a number of players in the telecom world around moving beyond the PSTN with the rollout of wideband telephony services.

The event was the first of its kind, and drew a group of over 100 attendees most of whom were telecom industry insiders. For me it was exciting and enlightening to be in the presence of such a group of knowledgeable people.

The day was marked by a number of presentations from various parties and a handful of panels. There’s simply too much to convey in a single post so I’ll start with some of my more general impressions of the issues discussed.

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