Short for Quality of Experience in telecommunications terminology, it is a measurement used to determine how well that network is satisfying the end user's requirements. In contrast to Quality of Service (QoS) a measurement of network operating conditions such as noise, crosstalk, or lost or dropped packets, in telecommunications terminology, QoE takes into consideration the end-to-end connection and applications that are currently running over that network connection and how multimedia elements such as Internet video or IPTV networks are satisfying or meeting the end user's requirements.
The relationship between a performance-based QoS parameter (such as packet loss) has a resulting effect on the end user's QoE since a high network performance is required to meet QoE objectives.
See Quality of Service (QoS).
See also "Healthy VoIP Nets are Part of the VOIP Quality of Experience" on Enterprise VoIP Planet.
Also see "VoIP and the Small Business" in the "Did You Know..." section of Webopedia.
Also see "Internet Telephony" in the Quick Reference section of Webopedia.