• How to think about VoIP security

    Voice over IP (VoIP) brings converged networks security challenges that never existed for the data network or traditional telephony. In the first tip of his VoIP security series, industry expert Gary Audin provides an overview of these IP telephony ...  Continue Reading

  • How silence suppression saves WAN bandwidth

    Silence suppression, or voice activation detection (VAD), technology is used to save WAN bandwidth used by VoIP traffic, while comfort noise generation (CNG) counteracts negative affects on VoIP speech quality.  Continue Reading

  • IP PBX: Ten reasons to switch

    Should you throw out the old PBX and replace it with a new IP PBX? This tip from provides ten compelling reasons to do so, along with a brief explanation of what an IP PBX is, how it works in a computer network and how it ...  Continue Reading

  • QoS -- What voice managers need to know

    Quality of Service (QoS) technologies can be quite confusing between technical complexities and marketing jargon. In this tip, find out what voice managers need to know about QoS as it relates to VoIP.  Continue Reading

  • VoIP bandwidth: Calculate consumption

    The bandwidth needed for VoIP transmission depends on compression technology, packet overhead and the network protocol used. In this tip, learn how to calculate how much bandwidth your VoIP implementation will need.  Continue Reading