# Evolution of emergency communication technologies

> Live situation record from CLSTR: https://clstr.news/situations/evolution-of-emergency-communication-technologies
> Updated: 2026-10-06T07:05:00.000Z. Sources: 4. Developments: 2.

Emergency communication technologies are evolving from historical signaling methods to sophisticated digital tools. Early developments focused on maritime distress signaling, tracing a lineage from telegraphy to the Global Maritime Distress and Safety System (GMDSS).

Modern advancements emphasize mobile applications for disaster preparedness and direct assistance. Mesh networking apps like Bridgefy and Briar utilize Bluetooth and Wi-Fi to facilitate communication during cellular outages, while tools like what3words provide precise geolocation. In Germany, the Nora app allows for silent emergency calls and the secure transmission of local medical data to responders, addressing needs arising from network failures or user disabilities.

## Timeline

### 2026-10-06: Emergency communication technology evolves from maritime telegraphy to mobile apps

Germany highlights advancements in emergency communications, from the history of maritime distress signaling to the use of the Nora app for silent emergency calls.

2 sources. https://clstr.news/cluster/emergency-communication-technology-evolves-from-maritime-telegraphy-to-mobile-apps

### 2026-09-20: Mobile applications for emergency preparedness and communication

Mobile apps like Bridgefy, Briar, and My112 can facilitate emergency communication and precise geolocation during disasters or when cellular networks are unavailable.

2 sources. https://clstr.news/cluster/mobile-applications-for-emergency-preparedness-and-communication

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Cite as: Evolution of emergency communication technologies. CLSTR, https://clstr.news/situations/evolution-of-emergency-communication-technologies