T-Mobile (NASDAQ:TMUS) has been on a customer acquisition tear for a while now, adding more than 1 million customers each quarter -- for 10 consecutive quarters.

But offering great deals to new customers has pushed the carrier's average revenue per user down for more than a year, and it's time for T-Mobile to start moving that back in the right direction. A recent investor note from Jefferies suggests that may start happening soon, as the carrier focuses its attention on tiered data plans and device leases. Click on the slideshow below to find out more.