T-Mobile disclosed in an interview how it’s going to be able to sustain its $650 per line early termination fee (ETF) buyout plan it now offers to customers that bring over their family plans for competing carriers. The carrier told CNET that while it’s ready to pay up to $350 per line for up to five lines and offer credit up to $300 for the old phones users trade-in, the actual numbers it will pay out will be a lot smaller. T-Mobile’s Chief Financial Officer Braxton Carter said that T-Mobile will pay an average of less than $150 per line, as most customers that will make the switch are well into their contracts, which means their ETFs will be lower