5312/5324 IP Phones User Guide Feature Keys You can use (MENU) on your phone or the Desktop Tool to program the personal keys as feature keys. The Desktop Tool is a browserâbased interface that makes programming quick and easy. For more information on using the Desktop Tool, please contact your System Administrator.312/5324 IP Phones User Guide Feature Keys You can use (MENU) on your phone or the Desktop Tool to program the personal keys as feature keys. The Desktop Tool is a browserâbased interface that makes programming quick and easy. For more information on using the Desktop Tool, please contact your System Administrator.
What is Surface Mining?. Surface mining involves removing the overburden of a mining site to expose the resources below. Overburden consists of the rocks, soil, and mineral deposits that sit over the materials that are to be mined.
Borehole Mining (BHM) is a remote operated method of extracting (mining) mineral resources through boreholes by means of high pressure water jets.This process can be carried-out from land surface, open pit floor, underground mine or floating platform or vessel through pre-drilled boreholes. A borehole is drilled from land surface to a desired depth, where then actual borehole mining will take place. 2  A casing column is lowered down the hole.