Electronic Data Systems Corp has agreement in principle with Telefonica de Espana SA to provide substantial systems integration services in the billing area, says Xavier Ribas, EDS director of marketing for southern Europe: the contract, which Ribas expects to sign by the end of June, would provide a system that will enable Telefonica to provide itemised billing; although an exact figure was not available, Ribas says it would be probably one of largest software and services contracts ever signed by Telefonica – There is a lot of public pressure on Telefonica for better service, especially in this area; our piece is part of a more complex modernisation programme being undertaken by Telefonica, including the installation of digital lines; the planned system will be installed gradually, according to geographic areas, he added.