Depends on your network and your landline but I guess a fairly isshy network compared with a fairly common POT landline you would definitely see a difference. P

Depends on your network and your landline but I guess a fairly isshy network compared with a fairly common POT landline you would definitely see a difference. Packet switching (Vs circuit switching) alone should in principal introduce a latency - then there’s a lot more interconnects - and on top of that whatever hocus pocus they use to optimise their (digital) bandwidth usage. Of course modern land lines probably are more like mobile now but not unreasonable to expect circuit switches analogue POT are still widely used.