MUM 2025, the 24th International Conference on Mobile and Ubiquitous Multimedia Enna, Italy, December 1-4, 2025 We are pleased to announce that the submission deadlines for Posters, Demos, and the Doctoral Colloquium have been extended to give you more time to prepare your submissions. New Deadline: October 13, 2025 (AoE) This extension applies to: * Posters (3 pages) - Notifications October 25, 2025 * Demos (max 3000 words) - Notifications October 23, 2025 * Doctoral Colloquium (2–4 pages) - Notifications October 23, 2025 We look forward to receiving your contributions to this leading forum for advances in mobile and ubiquitous multimedia. Additionally, we are seeking enthusiastic Student Volunteers (SVs) to support the smooth running of the conference. Registration is now open, visit https://www.mum-conf.org for all (other) details.