Yes.
Unplugging the phone does not affect your broadband or tv streaming. If you have a wifi device you can call free on Skype, FaceTime, Facebook or Whatsapp call.
I rarely use my mobile. I much prefer the landline. Our land line is blocked for anonymous callers. My mobile is basically a safety device for when I am out. I just don't like mobiles. Very few people have my mobile number. If it rings when I am in or out then it is something important. When I am out I want freedom from phones.
You can get some good deals with Virgin without a landline. Someone I know just has broadband with them and has a mobile for his calls, texts, etc. I have been thinking about it, trouble is I often forget where my mobile is and then have to get the landline phone to find it! We shall see, such a lot of money line rental when you hardly ever use it.
I have a landline which is a vintage Brother phone and thermal fax machine. Remember those, the faxes always came out all rolled up like an ancient scroll:)
barry at 16.25; All wireless phone instruments rely on mains electricity but plain wired phones do not because the telephone system is independently powered through the landline. Someone I know lost mains power supply due to a local fault. He went to "investigate" and in the process switched off at the consumer unit so when the power came back on he still had no mains electricity. He only has a wireless landline phone and his mobile was almost completely out of charge. He was stuck until he managed to alert someone who switched the power back on for him - he is disabled. This is why I have an ordinary wired phone permanently connected although the wireless phone normally gets most use. Like others on here I don't want a mobile phone bill on top of the landline's and I am sufficiently independent not to worry that I am missing anything while out and about, I can always check my e-mails on return and browse for news on the Net. Moreover, I do not ignore anyone's call á la mobile.
When you have your broadband provided by Virgin you have a landline. It's not a BT landline and it may not have a phone on the end of it. But it's a landline (i.e. a fixed line than connects the customer's premises to a telephone exchange).