newsroom post:5G SA“Standalone Ultra Capacity 5G” with speeds up to 3Gbps. 4 brings 5G Standalone supportUp until now, T-Mobile was using carrier aggregation with 5G SA to merge three channels of mid-band spectrum to get super-fast performance up to 3Gbps. Voice over 5GCincinnati, OHNew Orleans, LANew York, NYSeattle, WAPortland, OR (previously available)Salt Lake City, UT (previously available)Planning a much broader rollout for VoNR, T-Mobile says it will “will expand this technology to additional cities covering more than 100 million people in the coming months