Businesses have been encouraged to fax-back information or to respond to text messages by calling premium rate telephone numbers which begin 070 or 09.

BBC: Oftel issues scam warning

The lack of a keypad makes it a second-rate telephone.

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Others complained to BBC News Online that they spent more than half an hour in a queue for the technical help line of the Genie Wap service - a premium rate call costing 50p a minute when accessed on a normal telephone landline.

BBC: BT in Wap phone trouble