How does it work and whats the work around? I've been to a few places now where my phone will connect to an "extended network" which doesn't allow you to make calls, texts, or use data. Specific examples are a doctors office in green bay (there are signs saying cell phone use isn't allowed in the waiting rooms), and the harbor freight in wausau (no idea why on this one, but I have to make sure and have the coupons saved before entering). 4 bars of 4G until I walk in (verizon).