div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: ITU-T Recommendation H261 src=https:reader038fdokumencomreader038viewer202211021056812c71550346895d910983html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divpITU-T Recommendation H261pdiv