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 Private 5G Device intelligence – a missing piece in the private networks puzzle GSMA and RCR Wireless Sponsored - October 6, 2025 Internet of Things (IoT) How the new SGP.32 eSIM standard will transform IoT connectivity RCR Wireless News - September 22, 2025 5G Transitioning from Affirmed Networks: How telecom providers can unlock new opportunities via 5G core solutions (Reader Forum) Jim Collier, Vice President of Sales, Axyom.Core - September 18, 2025