A valve nut removal and replacement system including a plurality of associated tools and methods used for above ground access to, replacement of, and maintenance of worn, misshaped, abused or otherwise faulty valve nuts located at a subsurface location. The invention thus relates to the plants, seeds and tissue cultures of the variety I291859, and to methods for producing a corn plant produced by crossing a corn plant of variety I291859 with itself or with another corn plant, such as a plant of another variety. In one aspect of the present invention, call forwarding of at least one of a land line phone and a mobile phone is automatically configured when the mobile phone is brought close to the land line phone or when the mobile phone is taken away from the land line phone. Cantilever contacts 5 have first contact points 51 for contacting with surface contact terminal 1A, while first lead parts 52 extend out from a stopper 43.