In our market, DSL is being phased out and replaced with FIOS/Fiber. (for several years now). It's the digital version of the product, from the same company. Verizon offers digital television, analog over digital telephone, and internet with the FIOS service. (Cox offers digital television, analog over digital telephone, and internet as well)
Cox internet was recently rated fastest in the USA, and I can vouch for that claim. The speeds we were getting at home, before we switched from Cox to Verizon FIOS, were amazingly fast. GTP pays $49 per month for the internet portion of the bill, and about $70 per month for the (two) phone lines. (after taxes, call forwarding, etc)
Our shop has had COX digital telephone for almost ten years now ( in one more month it'll be 10 years ). It has been flawless, much louder than Verizon's copper wires, and we save a lot every month. I had it at home about ten years, also, and have it many other businesses. (we switched the house to Voice over IP about 5 years ago, only because of price)
We had a MAJOR problem with COX at the shop, which they resolved TODAY. It's ironic that you asked today

Our service been spotty since the hurricane hit New England. (we have NINE Cox telephone lines/numbers in the building, between our shop and some sister businesses) Sometimes no dialtone, sometimes static on the lines. They finally traced the issue today and it seems stable again.
I had the same kind of issue two years ago, for a large (consulting) client in Providence. It took about a week, in that case. (digital static on all lines, outside of the building)
To their credit, they did credit us for the time down and we had the ability to forward to cell phones. Their communications were excellent, and they were pleasant about it. It shouldn't have taken so long to fix the issue, however.
If you still use a credit card terminal that uses a dialup modem, have an alarm panel tied in, or a fax machine; these will work fine with COX or FIOS. But these devices usually wont work well with traditional 'VOIP' providers like VONAGE, VIATALK, etc.
Mike