Friendly Reminder: System Maintenance for IP Phone and Voicemail Services on August 3, 2025 Friendly Reminder: System Maintenance for IP Phone and Voicemail Services on August 3, 2025 溫馨提示:IP電話服務及語音信箱服務將於2025年8月3日進行系統升級維護 2025-07-31 ICTO-IUS Bulletin / 公告 Please login with your UMPASS to view the complete content.請使用UMPass登錄以瀏覽內容。 fongfan Fan Chi Fong, Fong2025-07-31T15:52:30+08:00