Virtual Local Area Networks, or VLANs, are becoming commonplace in the network infrastructure of a communications network. This Bite Size course will look closely at why VLANs are needed, how they are set up and used, and how Quality of Service over Ethernet became a reality. “A limited distance communication system covering an area within a building or a site or a campus, and capable of permitting attached terminals to intercommunicate” is a simple definition of a LAN. Read More

This short Bite Size course we’ll look at the technology behind VoIP, and what it offers today. Free calls over the internet, Skype and Facetime application,  video conferencing and  the steady convergence of voice and data networks to reduce rising communications costs. Read More

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