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.
The mine shaft is used to admission to an underground mining capability. Horizontal workings off the shaft are known as drifts, galleries or levels. These expand from the central shaft towards the ore body. The point of contact among these levels and the shaft itself is called the inset, shaft station or plat.nderground mining is selected when the rock or mineral is so far to reach using surface mining. Shaft mining is the kind of mine that you normally see in movies where the miner travels straight down into a profound, dark tunnel until he reaches the base.