The 3G phones in the market are not up to snuff, according to experts: “We are seeing performance differences between two 3G terminals, with as much as 6dB or 7 dB falloff in signal sensitivity. Inside a building where signals are marginal, that’s the difference between ‘working’ and ‘not working’ - and it’s not being caught in testing.”

The accusation comes from the leader in terminal (phone and handset and data cards, to us users) testing: Spirent. Director of Applications Engineering, Nigel Wright, said frankly: “The handset makers have concentrated on passing ‘conformance’ tests, at the expense of real-world performance.”

Users of 3G data services will all be well aware of the problems of trying to get error-free communications, especially on data cards. But it’s very difficult to set up a good real-world test for phones or data cards which is repeatable, and as a result, the requirements of UMTS “conformance” tests have become very watered down, Spirent thinks.

“We’re well aware that a few big handset makers have put pressure on the committees to allow performance which isn’t optimised for anything except passing the conformance test,” said Wright. “It’s a problem which the networks are very concerned about, because users are seeing calls dropped, errors, and loss of signal, which the networks are blamed for. But the problem is in the mobile terminal, in our judgement, in far too many cases.”

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