Most VOIP platforms run on a variant of Linux. Obviously Lync is an exception to this rule. I cannot emphasize learning the Linux CLI enough. You need to know basic commands such as “cp, cat, less, more, SCP, ssh, grep, egrep, vim, vi, ps, top”. I’m not going to provide an in-depth analysis of these commands in this guide. I’ll leave that to a Linux Expert. In terms of networking hardware Cisco is still the most common. I suggest learning at least CCNA level routing and switching. You will also need to have an understanding of how QOS works and how it can be utilized at different layers of the OSI model.
voip meaning