A deal for a unit of Royal Dutch Shell to acquire a 15% stake in Toll4Europe, an electronic toll service provider backed by Deutsche Telekom, has won antitrust clearance. The unit, euroShell Cards B.V. joins a consortium comprising Telekom unit T-Systems, which will retain a 55% controlling stake, with Daimler and DKV Euro Service also owning 15% each. Toll4Europe will handle electronic payments for truckers, using an onboard device, under the European Electronic Toll Service directive that requires toll systems to be interoperable across European Union member states.