Landline phone doesn't ring when incoming calls.tried all the problem fix information but no luck.

[Kl19]

My landline does not ring when a incoming call comes. I have gone through the problem fix list and the phone does ring when l plug it into the spare plug in the main box. 

[Mark39]

Does your master phone socket have two sockets - one for phone, the other for broadband? If it only has a phone socket, you should be using a microfilter on all your phone sockets (unless your phone is p.ugged into your broadband Hub). Try replacing the microfilter(s).