VoIP technology has made significant progress since its introduction during the mid 1990s. With the widespread adoption of the Internet, in both the private and public sectors, the IP-based ...

Cisco Discovery Protocol (CDP) is a link layer discovery protocol that has been integrated into Cisco switches and routers ever since I can remember. Cisco introduced CDP support into their routers ...

Since I posted on the subject of passing the CCIE Voice exam, I have had a number of requests to blog some more on some of the individual CCIE Voice exam objectives. So, in response to these requests, ...

MetTel has completed a nationwide modernization of network and voice infrastructure for the General Services Administration to boost connectivity, security and operational efficiency across nearly 800 ...

Cable-based IP telephony holds the promise of simplified andconsolidated communication services provided by a single carrier ata lower total cost than consumers currently pay to separateInternet, ...

In an ideal Internet all packets would be treated as equal by the Internet Service Providers (ISP) and backbone operators who transport them across cyberspace. Unfortunately, this is not always the ...

Network routers of ISP. Many wires connect to the network interfaces of powerful Internet servers. Racks with computer equipment in the server room datacenter. (Image credit: Getty Images). The ...