I finally had it with the phone company. I end up spending close to $100 most months with minimal long distance charges, and that seemed like way too much. So, I got my brother to refer me to Vonage (good for a month’s free charges) and ordered their service.
Today the Linksys RT31P2 arrived. It looks just like a traditional Linksys router, except that it has 3 ethernet ports instead of 4 and two phone jacks. I was concerned that it would interact badly with my existing WRT54GS router, but I decided to just try the stupidest thing imagineable: I plugged the RT31P2 into my WRT54GS on an open port, powered it up, connected the phone, and voila! I have dialtone!
I’ll probably have more to say about it later, but so far, I’m fairly impressed.