How SOS Točka Works

From physical alarm to rescue team — a fully automated process.

System Architecture

Two parallel paths reach the emergency services — data alerting through the server, and a direct voice call from the device.

Data & alerting

SOS Točka Device

Robust device

Wireless Networks

messaging
NTN Satellite 2G / 3G / 4G Wi-Fi LoRaWAN

SOS Točka Server

Processing and forwarding

Rescue Service

SMS to 112 / 113 / ReCO and email to ReCO

Voice call

SOS Točka Device

Robust device

Internet link

call
Starlink Wi-Fi

Rescue Service

Voice call to 112 / 113 / ReCO

Supported Networks

SOS Točka uses the first available network in priority order.

LoRaWAN

Long range with low power consumption, ideal for mountains and remote areas.

2G / 3G / 4G

Fast and reliable where mobile network is available.

Cat-M1

Low power consumption for IoT devices with good coverage.

NB-IoT

Optimized for low-power devices with deep signal penetration.

Starlink

High-bandwidth satellite broadband that also carries VoIP emergency calls — ideal where there is no terrestrial network.

NTN / Satellite

Skylo NTN — works anywhere in the world, even without terrestrial infrastructure.

Step by Step

Data & alerting

  1. 1

    Alarm Activation

    A person in distress presses the red SOS button or activates the AED. The device detects the signal and immediately prepares a data packet with GPS location, timestamp and alarm type.

  2. 2

    Network Transmission

    The device picks the best available path for the alert data — LoRaWAN over the Pi-HAT Notecard is the primary radio, with 2G/3G/4G, Cat-M1, NB-IoT, on-site Wi-Fi, Starlink and Skylo NTN as fallbacks. The data is sent to the Blues Notehub cloud platform.

  3. 3

    Blues Notehub Cloud

    The Blues Notehub platform receives the data and forwards it to the SOS Točka server via a secure HTTPS webhook. Notehub provides secure, reliable and low-power communication with IoT devices.

  4. 4

    Server Processing

    The server receives the webhook, verifies authenticity with the security key, identifies the device and processes the data. Location, time and alarm type are stored in the database.

  5. 5

    SMS & Email to Emergency Services

    The server sends an SMS with the GPS coordinates, alarm type and device identification to 112 (general emergency) or 113 (police), and an email to the regional notification centre (ReCO). The rescue team is alerted immediately.

Voice call

  1. 1

    Internet Link Check

    The moment the alarm is triggered, the device checks for a broadband internet link — Starlink satellite or on-site Wi-Fi.

  2. 2

    Direct VoIP Call

    Over that link the device places an automated VoIP voice call directly to 112, 113 or the direct line of the regional notification centre (ReCO) — no mobile network required.

  3. 3

    Live Voice Contact

    The emergency operator is reached by voice, so the situation can be confirmed and help dispatched without delay — in parallel with the SMS and email alert.

Blues Wireless Notehub

Blues Wireless Notehub is a cloud platform for IoT device management that SOS Točka uses as a communication intermediary between the device and the server.

Notehub provides secure, reliable and low-power communication with IoT devices via various network technologies.

When the device sends data to Notehub, it immediately sends a webhook to our server with the complete JSON data packet.

Have Questions?

Contact us for technical details or installation information.