Voice Over IP (VoIP) deployments can cause unexpected or unplanned power and cooling
requirements in wiring closets and wiring rooms. Most wiring closets do not have
uninterruptible power available, and they do not provide the ventilation or cooling required to prevent equipment overheating. Understanding the unique cooling and powering needs of VoIP equipment allows planning for a successful and cost effective VoIP deployment. This paper explains how to plan for VoIP power and cooling needs, and describes simple, fast, reliable, and cost effective strategies for upgrading old facilities and building new facilities.