Telefónica, Portugal Telecom to overlay GSM on CDMA networks in Brazil By Reily Gregson June 6, 2002 Archived ArticlesCarriers FacebookTwitterLinkedin S FacebookTwitterLinkedin Previous articleHelp for 3G operators to be rejected by EUNext articleChina’s CDMA handset prices dropping AnatelCarriersCDMAGSMAHandsetsoperator ABOUT AUTHOR Reily Gregson RELATED POSTS 5G Before 6G, carriers need to monetize 5G Standalone (Reader Forum) Richard Fulwiler, Senior Director, Product Management, NETSCOUT - December 3, 2025 Analyst Angle Telecom retail in 2025: What works and what doesn’t (Analyst Angle) Jeff Moore - November 26, 2025 Webinars GSMA Webinar: Branded Calling – Building Trust in Telco Communications RCR Wireless News - November 24, 2025