T-Mobile US CEO Mike Sievert ( pictured ) used the company's Q3 earnings call to provide an update on its various M&A and joint venture activities, including a $4.4 billion deal to buy spectrum, network assets and customers from UScellular. Sievert still expects the deal to close by mid-2025 and said T-Mobile is in a planning phase with UScellular counterparts. "We've met the teams. They're fired up." The CEO noted T-Mobile and UScellular customers will have a better network experience once the integration work is completed. UScellular customers will also benefit from lower prices as they migrate to T-Mobile tariffs, he said. "We're very confident, but we have to keep our heads down and go through the process and explain our case to all the parties involved."