• Unified Communications (UC) combines all forms of business communications into a single, unified system that provides powerful new ways to collaborate. Encompassing several communication systems or models, UC includes unified messaging, collaboration and interaction systems,...

  • The history of Unified Communications lies in the birth of voice over ip (VoIP) back in the late 1980’s and early 1990’s. We were all concentrating on toll bypass for enterprises to save money by...

  • In Subnetting Shortcuts- Part One, we reviewed the classful addressing scheme, and the purpose of a subnet mask.  Now let’s look at an example. Let’s say that you’ve been given an address space of 192.168.1.0/24,...

  • Many CCNA candidates have trouble with subnet masking (and some CCNP candidates, as well!). Over the next few weeks, we’ll learn some shortcuts that make subnet masking calculations easier. But first, a review … Recall...