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Bring yourself up to speed with our introductory content.

• What does 'look-ahead' mean in regard to VoIP?

  In this expert response, learn what 'look-ahead' means when discussing video codec compression in Voice over IP network environments. Continue Reading

• What's the difference between a SIP-flood attack and a TDoS attack?

  While SIP-flood attacks and TDoS attacks have similar goals, their attack vectors are very different. Industry expert Michael Brandenburg explains. Continue Reading

• Guide to Unified Communications as a Service: Making sense of it all

  This guide offers a look at different aspects of Unified Communications as a Service, including its meaning, development, strategies and more. Continue Reading

• Why is VoIP quality of service so challenging during implementations?

  Voice over IP quality of service can be tricky due to a variety of factors that influence its performance, says VoIP expert Jon Arnold. Continue Reading

• What's challenging about bringing video into UC architecture?

  Trying to integrate video into UC architecture is doable, but it's no stroll in the park, according to Nemertes Research's Irwin Lazar. Continue Reading

• Definitions to Get Started

  • video conferencing (video conference)
  • Session Initiation Protocol (SIP)
  • gatekeeper
  • leased line

  • VoIP (voice over IP)
  • communications platform as a service (CPaaS)
  • unified communications and collaboration (UCC)
  • QoS (quality of service)

  View All Definitions

• Mobile collaboration: Small screens present big challenges

  Mobile collaboration on small interfaces challenges users who are dependent on mobile devices for document collaboration.Continue Reading

• Unified Communications as a Service primer: Moving UC to the cloud

  This UCaaS primer explores why you might consider Unified Communications as a Service, what kind of services are available, who's using it and how.Continue Reading

• scalable video coding (SVC)

  Scalable video coding (SVC) is an extension of the H.264 (MPEG-4 AVC) video compression standard for video encoding.Continue Reading

• Expert answers to your voice certification questions

  This guide gives expert advice on how to pursue voice certifications that complement your career and help you learn about your company's equipment.Continue Reading

• VoIP: Glossary

  This handy glossary will assist you with terminology related specifically to voice over IP.Continue Reading

• UC middleware solves UC interoperability challenges

  Fully standardized UC is not the only path to seamless UC interoperability. UC middleware provides a less complicated, more realistic path to UC interoperability.Continue Reading

• data transfer rate (DTR)

  Data transfer rate (DTR) is the amount of digital data that is moved from one place to another in a given time.Continue Reading

• private branch exchange (PBX)

  A PBX (private branch exchange) is a telephone system within an enterprise that switches calls between enterprise users on local lines while allowing all users to share a certain number of external phone lines.Continue Reading

• Migrating from PSTN to SIP trunking: A primer

  Replacing traditional voice circuits with SIP trunking offers cost benefits, but success requires the right SIP trunking provider and collaboration between network and UC teams.Continue Reading

• SIP interoperability and video codec challenges: Can the pieces fit?

  Despite SIP flexibility, true interoperability remains elusive. Marty Parker and Rivka Little discuss obstacles to SIP interoperability, why enterprises use different voice and video codecs and more.Continue Reading