Методи оцінки якості мови в IP-телефонії

Abstract

The work is devoted to the problems of IP telephony and factors that affect the quality of the IP network, including: delay, jitter, maximum bandwidth, packet loss, support for QoS mechanisms of channel-level technologies. Also, gateway quality factors: allowable bandwidth, delay, jitter buffer, packet loss, level control, echo cancellation. The main methods of assessing the quality of communication, which are currently used in IP telephony, are considered.