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.
Ever wonder to yourself: what is surface mining? If so, maybe thatâs because youâre a surface miner, will be a surface miner soon, or will soon work at a surface mine as a contractor. And if so, this is the article for you. Weâre going to explain what surface mining is and give you some information about the MSHA Part 46 training requirements for surface mines to boot. If you read through this and are still wondering about the surface mining definition, leave a note in the comments below.