Hello.
My small family and I have multiple desktop computers and laptops/notebooks (Linux/Debian stable, 2008's MacBook Pro's Mac OS X
10.5.8, and very old Windows XP Pro. SP3) and mobile phones (an Apple iPhone 4S and two LG Cosmos 2). We want to get a back up fast Internet connection in case Time Warner Cable (TWC) goes down which does happen once in a while for hours and is quite annoying. Currently, we use dial-up Internet through Verizon's old copper phone lines on one Windows computer but it is too slow (3 KB/sec average even on various 56k modems-- it has been like this since the mid 1990s/90s)!
I assume I need an USB wireless modem if needed for emergencies, but 4G type. iPhone 4S uses 3G. Do we connect it to these mentioned phones? How will that work? Are these modems backward compatible? Do we need new phones that we just bought earlier this year?
Thank you in advance. :)