How Much More Can be Wrung from DSL?

Ericsson engineers have demonstrated in the lab a way to bond together six unshielded copper wire pairs to push 500 Mbps about 500 meters. The technique is promising for the same reason all such technology developments are: they suggest it is possible to wring yet more performance out of a widely-deployed infrastructure that has some real-world performance limitations.

That doesn't mean the lab performance easily can be ported to a real-world environment. For starters, lab tests are not encumbered by all the messy real-world complications. Real-world access plant faces hazards such as squirrels, moisture ingress, corrosion and electromagnetic interference from other services that might be running inside the same cable bundle.

The other practical limitation is that most consumer locations might not have six available spare pairs to use. On the other hand, as fewer people use landlines, there theoretically are more unused pairs to tap. It's a messy process, though, and likely would require installing new drop cables and resplicing the drops to the distribution wiring. That sort of heavy craft work isn't so interesting for any service provider that might contemplate trying to introduce such a service.

On the other hand, in some urban markets in countries with dense housing, copper drops might be short enough that something could be practical, perhaps not delivering 500 Mbps, but still providing enough bandwidth to be quite interesting.

As often is the case, spot deployment seems more promising. Mobile tower backhaul, for example, could benefit, as the upside from deploying a relatively short length of new cable, when a suitable fiber node is available, could be quite helpful. Some enterprise locations also could benefit, much as these locations now do for "Ethernet-over-copper" technologies.

In the consumer market, at least in the United States, where loop lengths generally are longer than in Europe, bonding two pairs is much more practical. As always is the case when trying to market a service to the consumer market, varigated real-world physical constraints are important. Two pairs is typical. In some cases four pairs might be fairly standard. But four pairs might not generally be available everywhere in a region or city.

No question, any developments that increase DSL bandwidth are helpful. How helpful really "depends" on a variety of messy details.

Big Gains Seen for SIP Trunking, Ethernet

Nemertes Research says 53 percent of respondents to a recent survey are evaluating, deploying or planning to deploy SIP trunking to reduce access costs and take advantage of new services for in-bound and out-bound call routing.

In addition, 62 percent are using, or planning to use, Ethernet as a WAN connectivity technology to reduce bandwidth costs, with 85 percent planning to increase Ethernet usage.

Cox Aims SIP Trunking at 20-99 Employee Segment

Cox Business will be rolling out SIP trunking later this year, aiming at the 20 to 99 employee organization, after introducing its hosted IP PBX service.

http://voip.biz-news.com/news/en_US/2009/03/19/0001/cox-business-to-roll-out-sip-trunking-later-this-year

Broadband Stimulus: Too Much Optimism About What Can Be Done

Hype is running far ahead of what can be done even when all of the broadband stimulus funds are awarded and projects deployed. Broadband access is a hugely capital-intensive process, especially for the last couple of percent of locations that are so remote, in areas so thinly settled, that nearly all the cost must be recovered from such a small number of potential customers.

Physics and demography, not lack of will, are the key problems. In an urban area, some forms of broadband can be deployed for less than $2,000 a location, and often for as little as $1,000 a location.

In remote areas, serving one location can cost $10,000 to $50,000. You can build your own spreadsheet to figure out how long it would take to break even on that sort of investment, when the customer is expected to pay $40 to $50 a month. Don't forget the cost of interest on borrowed money, operating costs, maintenance and repairs, as well as the need, at some point, to replace the entire infrastructure because of age.

There likely will be some incremental benefits. But the "problem" of access in rural areas, or the quite-different problem of "under-used" broadband, will not be solved. Not by a long shot.

http://ow.ly/1dPd

Small Businesses Increase Web Spending, Shift Ad Spending

The smallest U.S. businesses have average annual sales of $212,000 and spend just $5,671 per year on advertising, typically in the yellow pages or on direct mail ads or on coupons, say analysts at Borrell Associates. But where small businesses used to spend four percent of their budgets online three years ago, they now are investing 11 percent of their advertising that way.

And there's a shift of thinking occurring as well. SMB executives are blurring the lines between what’s advertising and what’s not. They consider whatever they spend on their own Web sites to be “advertising,” though in actuality that spending is a technology, design and telecommunications expense, Borrell Associates notes.

When marketing professionals were asked in which media they intended to spend more money this year, two thirds of them said “my own Web site.”

SMBs are less receptive to buying banner ads (now accounting for 54 percent of their online spending, but declining) in favor of search-engine advertising, online directory listings, and streaming video. And they are diverting money toward something that feels to them like advertising, but in reality is technology-supported marketing: Web site design, search engine optimization and customer databases, Borrell Associates says.

Effective Broadband Stimulus? Give it to Libraries

As this article from the New York Times suggests, libraries are where people go to use resources they do not want to, or cannot pay for. If you have been to your local library recently, and if your local library has PCs and Internet access, you see the same pattern: people who cannot afford broadband at home, or who do not own PCs, use the public libraries.

It would be hard to name any single institution, anywhere more ideally suited to provide high-speed broadband access to people who cannot afford PCs or recurring service charges.

It would be nearly criminal if libraries are not key beneficiaries of "broadband stimulus" funding.

http://www.nytimes.com/2009/03/15/nyregion/long-island/15libraryli.html?_r=5

Commissioner Adelstein to Head RUS

Jonathan Adelstein, a two-term commissioner of the Federal Communications Commission, has been nominated by the White House to head the Agriculture Department's Rural Utilities Service, the agency that will be disbursing $2.5 billion in grants, loans or loan guarantees to further rural broadband deployment.