What button do i press to check whether my mail on the phone?

Question

the phone is only a cheap tesco landline one but i want to listen to my messages, i did not even know it had a mailbox till someone told me so thankyou

Answer 1

try dialling 1571.

If it's a BT line, that should work.

Answer 2

my phone has a little envelope on the side and i mash it. that may help u