Best options are if you have BB, to go to a bb provider that either pays for the line rental (smart or BT) or a provider that does not use the landline, eg, wireless bb providers lieke digiweb, IBB or locak wireless ISP's in your area. Also chorus or NTL provide cable BB, so no phone line needed.
If you can get a good BB wihtout your phone line, then sign up to avoip provider like blueface and port your number over to the,. No line rental, and you still have your phone line.
I did it a year back and no regrets (some intermittent call problems, but I would equate a good reliable voip provider (there are some chancers) along the same lines with regards voice quality and servce as any of the irish mobile providers).
How come there are so many posts like this over thje last week >
Regards,
Wexfordman