Urgent landline help needed please!

[Shadrack]

If the outside line goes to that socket that is the master socket and is the responsability of phone company
On bt lines dial 17070 press 1 and hang up should ring back ( I think this works on most lines)

If phone not ringing from skt inside master skt most likely line fault

Do'nt for get if line is broadband enabled you will need to insert filter