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AT&T filed some concerns<\/a> with the Federal Communications Commission (FCC) on Thursday over T-Mobile and Starlink owner SpaceX\u2019s plans to let mobile phones connect to Starlink satellites (via Ars Technica<\/em><\/a>).<\/p>\n<\/div>\n In its filing, AT&T argues that SCS, or \u201csupplemental coverage from space,\u201d should not inhibit terrestrial wireless service and that the FCC \u201cmust prioritize\u201d protecting terrestrial networks, and that T-Mobile and SpaceX\u2019s proposals don\u2019t have enough information about potential interference. \u201cThe Applicants\u2019 technical showings are woefully insufficient regarding the risk of harmful interference posed by their planned SCS deployments,\u201d AT&T said. \u201cSpaceX and T-Mobile\u2019s applications fall far short of meeting the threshold for waiver and cannot be granted in their current state.\u201d <\/p>\n<\/div>\n AT&T\u2019s filing was part of a call for comments from the FCC<\/a> on T-Mobile and SpaceX\u2019s plans for the satellite-to-cellular service, which were announced in August 2022<\/a>. The idea is that you\u2019d be able to connect to SpaceX\u2019s second-generation Starlink satellites set to launch this year<\/a> from your mobile phone to do things like text or send MMS messages.<\/p>\n<\/div>\n T-Mobile and SpaceX\u2019s service isn\u2019t expected to launch in beta until sometime before the end of this year. But if the FCC throws up roadblocks following this call for comments, we might be waiting even longer.<\/p>\n<\/div>\n