Telefónica, Portugal Telecom to overlay GSM on CDMA networks in Brazil By Reily Gregson June 6, 2002 Archived ArticlesCarriers FacebookTwitterLinkedin S FacebookTwitterLinkedin Previous articleInet wins Philippine contractNext articleCTIA show moves up in trade show ranking AnatelCarriersCDMAGSMAHandsetsoperator ABOUT AUTHOR Reily Gregson RELATED POSTS Carriers Telcos aren’t greenwashing – good progress, but not good enough James Blackman - July 3, 2025 Private 5G Indian enterprises get their say on private 5G spectrum James Blackman - July 1, 2025 Carriers API ambitions actualized: GSMA Open Gateway hits 80% market share Catherine Sbeglia Nin - June 24, 2025