I've seen people offer up their wireless phones as hotspots -- portable wireless access points (WAPs) -- when no other WAP was working. It's slower than a normal, coffeeshop or home WAP since it just runs at phone-network speeds, but slow is a lot better than nothing.
The phone works as as a wireless router, provides DHCP addresses to other computers that connect to it , and shuttles traffic to the rest of the internet through the phone network.
Thinking, "I really ought to try that," I hunted through the Settings menus, and found (More... -> Tethering & portable hotspot) a place where I could turn on tethering.
I did it, had Kristina connect her Kindle Fireto my phone, and ... Presto! It worked. She could browse the web.
From now one, if I can get a cell signal, I can use my cell phone as a router and connect laptops or tablets the web.
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