What exactly has your mother agreed to , upgrading to DV and upgrading to FTTP are not the same thing , upgrading to DV simply means on the appropriate day the phone instrument is plugged into the router not the master phone socket , no work needed at the property, upgrading to FTTP needs an engineer to re provide service with optic fibre cables , making the existing copper pair service redundant, this with result in a new ‘box’ installed on the house wall , if the current service was underground and not in a duct , then excavation through the ‘garden’ would be needed to get the optical cable from the footpath to the house where the box ( called a CSP ) would be fitted.
