I hope after all the great tips above you're able to find a bounty of phone shops.
A word of advice: Don't be discouraged when you first start. Some of the phone shops are easy from the get-go (payday loan inquiry shops come to mind), others are more complex (e.g.,funeral home shops) with a long script that seems daunting . . but after you've done one or two, they're quite easy and don't take too long.
I think it's a great idea for something to do while you're housebound. Hey, it's time that would otherwise be wasted, so if you can pick up some dollars every day making phone calls, why not? Win-win -- kill the boredom, get some $$'s. :-)
Good luck to you!