This used to be the case, but these days if you’re in a fibre area or area with BT’s widely available FTTC offering, BT will happily sell you a “no landline” de

This used to be the case, but these days if you’re in a fibre area or area with BT’s widely available FTTC offering, BT will happily sell you a “no landline” deal on their website. Incidentally their landlines on fibre are basically VoIP phones with a battery backup. Same with most other fibre providers, like Vodafone.