Feeds

London's hotspots unfit for voice

Two-thirds won't give you a decent line

Combat fraud and increase customer satisfaction

Most of London's wireless hotspots can't support more than one voice-over-IP call at a time, according to a survey by WLAN analysis specialist AirMagnet.

The company surveyed 15 hotspots around Oxford Street and the City last month. It said that 11 of them suffered from coverage problems that prevented multiple simultaneous voice-over-Wi-Fi calls.

AirMagnet boss Ian Schenkel said that without remedial work, people trying to use Wi-Fi or dual-mode phones could suffer dropped or poor quality calls, and might simply give up trying to use it as an alternative to their current phone service.

"The hotspots were OK for data use," he said, "but network usage is evolving, and now the infrastructure needs to evolve to keep up."

He said the most common problem was being on the same channel as a neighbouring network, while other hotspots suffered interference from Bluetooth phones or - especially in sites also serving food - from a microwave oven.

Most interference issues can easily be fixed by a site survey, using a portable PC and WLAN analysis software, and adding extra access points if needed, he claimed. He acknowledged that a thorough survey takes time -that's why AirMagnet only checked 15 sites, but added that he believed it was a representative sample.

"It's much more three-dimensional than just adding more access points," he said. He pointed out that while metal air conditioning ducts will block radio signals, glass can reflect them.

"The best place we found was a phonebox with BT OpenZone," he said. "It was very well set up - it's somewhat ironic, given that it's a phonebox and we were testing voice-over-Wi-Fi."®

Combat fraud and increase customer satisfaction

More from The Register

next story
Virgin Media so, so SORRY for turning spam fire-hose on its punters
Hundreds of emails flood inboxes thanks to gaffe
A black box for your SUITCASE: Now your lost luggage can phone home – quite literally
Breakfast in London, lunch in NYC, and your clothes in Peru
AT&T threatens to pull out of FCC wireless auctions over purchase limits
Company wants ability to buy more spectrum space in auction
Turnbull leaves Australia's broadband blackspots in the dark
New Statement of Expectations to NBN Co offers get-out clauses for blackspot builds
Facebook claims 100 MEEELLION active users in India
Who needs China when you've got the next billion in your sights?
Facebook splats in-app chat, whacks brats into crack yakety-yak app
Jibber-jabbering addicts turfed out just as Zuck warned
Google looks to LTE and Wi-Fi to help it lube YouTube tubes
Bandwidth hogger needs tube embiggenment if it's to succeed
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.