Hey @Andym1967,
Welcome to the community and thanks for taking the time to post your issue on the forums.
I’m sorry to hear of the issues that your father in law is having with his landline after the changeover.
Has your father in law pre-arranged for a technician visit or been advised by our team that a visit was booked in?
Do you have access to his online account? The main dashboard of his online account would show any pending visits from the team.
Is his phone still plugged into the wall socket at the moment?
Regards,
Steven_L