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."®

High performance access to file storage

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 dangles gigabit broadband plans over 100 US cities
So soon after a mulled Google Fiber expansion, fancy that
AT&T threatens to pull out of FCC wireless auctions over purchase limits
Company wants ability to buy more spectrum space in auction
Google looks to LTE and Wi-Fi to help it lube YouTube tubes
Bandwidth hogger needs tube embiggenment if it's to succeed
Turnbull gave NBN Co NO RULES to plan blackspot upgrades
NBN Co faces huge future Telstra bills and reduces fibre footprint
NBN Co plans fibre-to-the-basement blitz to beat cherry-pickers
Heading off at the pass operation given same priority as blackspot fixing
NBN Co in 'broadband kit we tested worked' STUNNER
Announcement of VDSL trial is not proof of concept for fibre-to-the-node
prev story

Whitepapers

Mainstay ROI - Does application security pay?
In this whitepaper learn how you and your enterprise might benefit from better software security.
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.
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.
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.