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 5G Chinese telcos operate 4.25 million 5G base stations Juan Pedro Tomás - January 23, 2025 5G Six operators advancing on 5G-Advanced Catherine Sbeglia Nin - January 17, 2025 5G 5G adoption in Europe is falling behind, says GSMA Catherine Sbeglia Nin - January 15, 2025