http://www.itu.int/ITU-T/workprog/wp_search.aspx?sg=15 Latest modified work items from ITU-T Study Group 15 Work Programme http://www.itu.int/ITU-T/workprog/images/itulogo_new.gif http://www.itu.int/ITU-T/workprog/wp_search.aspx?sg=15 ITU tsbedh@itu.int tsbedh@itu.int Editor(s): Xi DU <duxi@fiberhome.com>; Francois MAURICE <francois.maurice@nokia.com> Fri, 27 Mar 2026 13:45:17 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=23831 Lightweight PTP profile for phase/time synchronization in full timing support networks Editor(s): Lee COSART <lee.cosart@microchip.com>; Makoto MURAKAMI <makoto.murakami.ty@hco.ntt.co.jp> Fri, 27 Mar 2026 13:44:16 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=21610 ITU-T technical report GSTR-OCN, "Optical clocks and their networking" Editor(s): Liuyan HAN <hanliuyan@chinamobile.com>; Bin LUO <luo.bin5@zte.com.cn> Fri, 27 Mar 2026 13:43:46 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=22348 Synchronization Layer Functions for packet-based networks - Amendment 1 Editor(s): Fri, 27 Mar 2026 13:43:16 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=23821 Synchronization layer functions for frequency synchronization based on the physical layer - Amendment 1 Editor(s): Mikael JOHANSSON <mikael.s.johansson@ericsson.com> Mon, 09 Mar 2026 12:10:50 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=23833 PRTC Clocks Monitoring Editor(s): Liuyan HAN <hanliuyan@chinamobile.com>; Jingfei LV <lvjingfei@huawei.com> Mon, 09 Mar 2026 12:10:33 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=23832 Synchronization for data centres Editor(s): Liuyan HAN <hanliuyan@chinamobile.com> Mon, 09 Mar 2026 12:10:26 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=23820 Supplement on the use of options in the precision time protocol profile with full timing support from the network Editor(s): Mudita CHANDRA <mudita.chandra@gov.in> Mon, 09 Mar 2026 12:10:10 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=22329 Optical fibre cable Recommendations and standardization guideline Editor(s): Jingfei LV <lvjingfei@huawei.com> Mon, 09 Mar 2026 09:14:12 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=21597 Simulations of transport of time over packet networks Editor(s): Hugues LE BRAS <hugues.lebras@orange.com> Mon, 09 Mar 2026 09:13:34 GMT http://www.itu.int/ITU-T/workprog/wp_item.aspx?isn=22316 Power conservation in optical access systems