Some large companies may have 40 mobiles with Orange, 40 with Vodafone and 30 with BT Cellnet, with all kinds of different providers.

BBC: Don't call us...

Many customers were left in the dark, as helpline technicians blamed the fault on the success of BT Cellnet's Easter promotion of Wap phones.

BBC: BT in Wap phone trouble

Already many BT Cellnet customers use the Genie portal that gives them access to the same information services whether they reach the site via a PC or their phone.

BBC: BT opens up Openworld