The ETS was mobilized in August 2017 to address the urgent need for telecommunications support amid the Rohingya refugee crisis. Over its seven-year response period, the ETS established reliable internet connectivity and security communications systems across Cox’s Bazar, Ukhiya, and Teknaf. This ensured vital support for humanitarian operations, directly benefiting 790 humanitarian workers from 21 organizations, and connecting 102 sites to basic services such as healthcare, WASH (Water, Sanitation, and Hygiene), nutrition, and emergency food distribution.

The ETS played a crucial role in reinforcing the safety and security of humanitarian operations through robust security communications systems and training. The implementation of enhanced VHF radio networks and specialized emergency telecommunications training empowered 921 humanitarians monthly, ensuring effective and secure coordination of humanitarian activities.

By February 2024, the ETS had implemented the exit strategy initiated in July 2023 and handed over its services to local partners, the World Food Programme (WFP) and the United Nations Department for Safety and Security (UNDSS).