Open invitation to tender, deadline 03.05.2012, for radio communication equipment maintenance in Frejus tunnel. Duration of contract 12 months. Contact Salvatore Sergi, GEIE-GEF, Modane, tel +33 4792026-00, fax -10, e-mail marchespublics@tunneldufrejus.com. Visit http://ted.publications.eu.int/udl?request=Seek-Deliver&language=en&docid=081842-2012. 12/12.