Israel Aerospace Industries and Israeli-founded Carbyne have jointly developed a new emergency communications network. 911 Ultra-EN is an instant alternative private cloud-based cellular network to reconnect users in disaster zones with emergency services.

https://www.jns.org/israel-aerospace-industries-and-carbyne-unveil-cellular-network-for-emergencies/

https://www.iai.co.il/iai-and-carbyne-introduce-911-ultra-en