The agreement that will make AT&T Co a 20% shareholder in Italtel SpA has finally been signed – and STET SpA is taking a 20% stake in AT&T Network Systems International BV: terms of the pact were not given; both companies plan that their telecommunications technologies will converge in a common catalogue of products and systems over time; the two companies will also establish an equally-owned company, not yet named, to market AT&T and Italtel’s common catalogue of products where neither firm is well established.