scope:

The present document addresses combination network performance parameters and user perceived media (audio and video) quality parameters for audiovisual communications on IP networks.

The access technologies covered include both wired (e.g. xDSL) and wireless (e.g. UMTS, WLAN) technologies.

The display size range covered is from those of small mobile terminals (e.g. 2") up to large TV sets (e.g. 40" or more).

It is applicable to:

• Broadcasting and streaming applications such as IPTV and VoD.

• Interactive point-to-pint applications such as videotelephony and videoconferencing.

Where the media coding standards define two or more profiles, the baseline profile is addressed in the normative part of the standard.

Informative annexes present an overview of network QoS mechanisms and the effects on connection performance as well as guidance on terminal parameters that may influence the user perceived media performance.