Union internationale des tlcommunications Place des Nations 1211 GENEVE 20 Suisse Switzerland Suiza COVERING NOTE GENERAL SECRETARIAT OF THE INTERNATIONAL TELECOMMUNICATION UNION Geneva, 19 August 2015 ITU TELECOMMUNICATION STANDARDIZATION SECTOR Subject: Erratum 1 (08/2015) to Recommendation ITU-T G.8272/Y.1367 (2015), Timing characteristics of primary reference time clocks The arrows between “PRTC/T-GM under test“ and “Packet timing monitor“ in Figure I.8 should be labelled as PTP. Replace Figure I.8 with the following figure: