You are a little behind the times, BT do have the option to have broadband service without any telephony element , calling it ‘no line rental’ , is in my opinion a mis description , as there obviously is still a ‘line’ that delivers the service ( fibre or copper ) and it is rented, it’s just a case of does it deliver one or two services .
I hope you are not someone who expects broadband on its own to be around £20 cheaper than combined phone and broadband , the saving is much less , ( AFAIK list price difference is £5 ) but the option to make or receive any type of call, even 0800 numbers and 999 is removed .
