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Cisco Unity, Unity Connection, and Unity Express are all examples of systems that support both AA and VM functionality. Cisco Unity Contact Center and Contact Center Express are examples of IVR systems supporting skill-based routing and full automatic call distribution (ACD) functionality. Learn more about DTMF relay!

No matter what book or manual you use to study for the CCNA examination, you will see various protocols and processes referencing an RFC. And, although frequently referenced, the RFCs are seldom actually included in the documentation. So, the logical question becomes...

What were the top paying certifications in 2016? Which certifications did people want credentials in? This article gives a look back to 2016 by providing a review of the 15 top-paying certifications.

You know you need to invest in training, but how do you get the best return on investment (ROI) from your training dollars? To help you make smart training decisions, we've put together this guide, which illustrates some alternative and little-known payment options, the types of discounts and promotions available with training and a suggested list of courses that give you excellent value.

Need to know the difference between copper and optical fiber? Want to learn what the acronyms PBX, PC, PCI, PCIe, PCM, PDA, and PDU mean? Our "Geek Speak v3.0" can teach you all this and more. An update to our popular v2.0 "Geek Speak", this white paper will teach you more than 925 popular IT words, phrases, and acronyms.

When we learn a concept for the first time, the newness of it tends to become embedded with the learning process. We remember the new idea's significance and forever after remember it as new. The initial impact of a discovery can prevent the concept from aging. At the same time, we realize how quickly technology advances.

Whether you’re a beginner or intermediate Python developer, you’ll want to keep this guide close to your keyboard and Python editors. In it, you’ll find sample use cases for many of the most common language constructs and tasks that you’ll likely need to perform, such as reading a file or working with a database.

Your comprehensive and global guide to what’s happening in the IT field. Get your free copy of the Global Knowledge 2018 IT Skills and Salary Report today and learn more about IT job salaries, highest-paying certifications and more!

What are the best IT certifications to have in your list of credentials? Learn the top certifications based on data from our 2017 IT Skills & Salary Survey.

Learn everything you need to know about IT and technology trade shows and how they provide additional opportunities to hear about new technologies, talk with vendors, develop new skills, take certification exams, connect with peers in the industry and have a good time. Read now >