T-Mobile unveiled several Wi-Fi initiatives as part of Un-Carrier 7.0 that it hopes will help fill in the gaps where its network is weak and even extend coverage to places its towers have no chance of reaching. To make things better, one part of its plan doesn't ask T-Mobile customers for money, while the other is free with an asterisk. Both are publicly available starting today.

Let's get the latter one cleared up first. Part of this plan, known as Wi-Fi Unleashed, involves offering up $25 CellSpot (rebranded Asus RT-AC68U routers) that consumers can use with phones that support Wi-Fi calling. The price is fully refundable, and you can pick up the doodad from a local carrier store.