Not only can you make calls from Starbucks and Kinkos with the Belkin WiFi Skype phone—which we reviewed here—you can now make calls on Boingo hot spots. Boingo, like T-Mobile, has around 60,000 locations where you can pay to log on and be a chatty Cathy.
https://gizmodo.com/exclusive-belkin-wifi-skype-phone-review-first-anywhe-195468
If you own the Belkin phone, however, you can get unlimited access for $7.95 a month. Not bad if you frequently take your WiFi phone out with you to hotspots already.
Press Release [Belkin]