If you can see Mt. Caro aerials then you should be able to get an Avinet connection via microwave. You have the option of internet only or internet plus phone.  The internet connection comes in various speeds from 256K (not guaranteed speed) upwards - the more you pay the more (in theory) you get.

The cost for the most basic is 29€ per month. Not sure of all the other costs - it was 10€ a month for the phone + calls but that may have gone up.

If you go to the Telefonica shop at the end of Tortosa (near the Millenium bridge) then they will sort you out with a contract etc. but they don't speak English!

Nigel