Hello mr. @Mohammadreza Hadi the version of me CUCM is 12.5.1 ,last update by cisco to date 06-Mar-2023Refer below link,https://software.cisco.com/download/home/286322282/type/282074312/release/DSTRegards,Luis Subdias

Refer below link,https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/rel_notes/10_5_1/CUCM_BK_CE15D2A0_00_cucm-release-notes-1051/CUCM_BK_CE15D2A0_00_cucm-release-notes-1051_chapter_01.html#CUCM_RF_D5EC2022_00Update DST by CLI, example: Regards,...