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Lone Worker Protection

Set the standard in employee and corporate staff protection.

Lone Worker Protection from a Single Source

As an employer, you are subject to a comprehensive duty of care towards your employees. Lone workers in particular need protection that is as professional as it is comprehensive, with the fastest possible assistance. Protection must also be available, even if the injured person is no longer able to activate a manual alarm?

With a DIN VDE V 0825-11 certified and DGUV/SUVA compliant SOS emergency call system from Swissphone, your staff working alone are universally protected. In addition, you send a reliable signal of the high esteem in which your own employees are held.


The Swissphone solution for working alone includes:

  • DGUV certification / SUVA conformity
  • Automatic or manual triggering of an alarm
  • Motion sensor, position sensor, locomotive driver check
  • App solution or device specifically for working alone
  • Localisation indoor and outdoor
  • Post-processing logged in an audit-proof manner
  • Transmission via mobile radio or WLAN
  • High acceptance among employees
  • 24/7 control centre available in different languages
  • Permanent system monitoring

The Complete Solution for Solo Workers

The complete solution from Swissphone contains all the important components for protecting lone workers. Whenever people need to be protected, prevention is of particular importance. Alarm triggering, alarm management, transmission, intervention and follow-up are coordinated and closely linked.


For lone worker protection, either the smartphone app with the lone worker module or various dedicated devices (for example Swissphone TRIO) are used. In addition to the volitional alarm, an emergency situation can also be detected automatically by the device (dead man function, fall). In this way, an alarm is triggered immediately.



In order to avoid false alarms, the sensor settings can be customised to meet specific needs. In addition, an automatically triggered alarm can be manually cancelled at any time within the pre-alarm.


System monitoring

The Watchdog vin s.GUARD monitors the functioning of the lone worker service and alerts the responsible persons if communication is disrupted or fails.

system monitoring lone worker

Alarm Management

An individual emergency plan can be stored for each lone worker, which takes into account the localities and schedules (office hours, weekends). Who should be contacted in an emergency and through which “channel” is defined in your safety procedures. In addition to first responders and the company ambulance service, an external organisation can also coordinate and manage the operation.



The alarms can be acknowledged by the recipient. If no or too few first responders are available  within a predefined period of time, the system automatically escalates and extends the alert to further recipients.




The platform ensures the communication of all common technologies. These include: Telephone, Alarm app (iOS, Android), desktop software for PC and Mac, SMS, e-mail or pager. In addition to status messages on the status of the transmission (sent, received), feedback (acknowledgement) is also available.


Via automatic telephone conference with the person who triggered the alarm, the first aider can verify whether there is actually an emergency or whether it is a false alarm. If the person involved in the accident does not respond or calls for help, the predefined measures according to your emergency plan can be initiated – such as alerting the company ambulance.


Document management – checklists

In predefined scenarios, processes and tasks can be sent to specific persons or teams based on freely definable documents and checklists. This enables the responsible persons to plan and coordinate measures efficiently and to deal with emergencies systematically and in an orderly manner. This helps to avoid human errors, which can certainly occur in extraordinary situations due to the excitement and hectic pace.



The chat function provides a modern messenger service for individuals and groups. In this way, information, pictures, videos and documents are exchanged online between the active alarm recipients. This prevents multiple contact attempts and avoids misunderstandings through written communication.


The platform logs alarm triggering and alarm reception of each event in detail and to the second. By analysing the audit-proof log, potential improvements can be made.


Functions of the Solution

Only the optimal interaction of all components generates ideal security. An emergency call system for lone workers consists of various technologies, software functions and hardware components. Swissphone offers a powerful solution for each of these components. All of them together result in a comprehensive, practical and highly efficient emergency call system – from a single source, from a general contractor.


The functions for lone worker protection:


  • Total solution for lone workers
  • Manually-initiated  emergency call functions (pressing the emergency button)
  • Auto-initiated  emergency call functions
  • Lifecheck monitoring in the absence of network coverage
  • Prevention of false alarms through customised parameters (sensor, pre-alarm)
  • Localisation via wireless communication or GPS
  • Emergency call transmission with automatic escalation
  • Use of existing smartphones or dedicated devices
  • Web-based portal for forwarding the emergency call
  • Permanent system monitoring

Your Advantages for Lone Worker Protection

A Swissphone emergency call system for lone workers offers many advantages – in very different areas of application:

Our solutions for working alone are certified according to DIN VDE V 0825-11 and have full compliance with DGUV regulation 112-139.

We provide a wide portfolio of devices compatible with dedicated terminals (TRIO, Twig, Teltonika, etc.) ATEX devices (i.Safe, ecom) Android smartphones and iOS smartphones.

Our lone worker protection solutions are scalable and suitable for small businesses  as well as for larger decentralised companies: They rely on central storage of all configuration parameters, a web-based dashboard for management and monitoring of all end devices.

The application can be adapted with a simple configuration for further applications in the alerting area, e.g. ambulance alerting or evacuation . Connection to third-party systems is also easy thanks to flexible interfaces. Our innovative development team is always working on the permanent optimisation and further development of our solution.

Swissphone provides a total solution from the terminal to the software solutions. The reliable operation of the application is ensured in a highly available geo-redundant data centre.

Legal Basics

Legal Basics

Employers are legally obliged to provide for the safety of lone workers according to the hazardous situation. If the risk assessment permits lone working with continuous and volitional monitoring, a personal emergency call system (PNA) can be used to raise an alarm in an emergency.

The legal basis varies from country to country. In Germany, for example, the DGUV regulation 112-139 is authoritative, in Switzerland the SUVA guidelines concerning persons working alone. The Swissphone emergency call system is certified according to these requirements as a complete system (hardware together with the system) according to DIN VDE 0825-11. 

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    FAQ - The Most Frequently Asked Questions about Our Solutions for Solo Workstations

    What is lone working?

    A person is considered to be working alone if he or she cannot be helped immediately after an accident or in a critical situation because, for example, he or she is working out of sight and call distance of other persons. Working alone is not permitted if it can lead to an injury that requires immediate assistance from a second person. (Source: SUVA)

    Where does lone working occur?

    In both industry and the service sector, the number of people working alone is increasing. Some examples:

    • Working in automated production processes
    • Work on work equipment (machines, plants, devices, lifts) in special operations such as cleaning or inspection work, during set-up and adjustment
    • Work in storerooms, cellars, outdoor warehouses, deep-freeze warehouses
    • Work in power plants, waste incineration and sewage treatment plants and landfills
    • Working in the laboratory
    • Overtime, shift work, flexitime or weekend work
    • Inspection rounds in extensive installations or during inspections in establishments outside normal working hours and during company holidays
    • Work in the track area of railway installations
    • Fitters in customer companies
      House technicians (facility managers)

    (Source: SUVA)

    Has the sole worker solution s.GUARD been tested by SUVA?

    SUVA makes recommendations within the framework of prevention – however, it does not carry out any product tests. However, we are in constant contact with those responsible within SUVA – new requirements are quickly implemented in s.GUARD. Our solution is SUVA and DGUV 139 (formerly BGR 139) compliant.

    For which industries is the s.GUARD lone worker solution suitable?

    The lone worker solution can be used in all companies where people work alone or out of sight of other employees. Examples are work in industry and production, but also in field service and evening, night or weekend work.

    Who provides assistance in the event of an emergency call?

    This is determined by the deployment plan: A permanently manned control centre processes the emergency calls and coordinates immediate assistance or the in-house emergency service responds to the emergency calls (e.g. ambulance service). Alternatively, employees who are in the vicinity receive notification of the emergency via app, voice or text message or paging.

    On which smartphones does the sole worker solution s.GUARD run?

    The app runs on almost all smartphones with the operating systems Apple iOS (from version 8.0) and Android (from version 4.4). The basic requirement is functioning GPS, accelerometer and/or gyroscope sensors. The functionality is checked before each use.

    Does the employee have to activate the monitoring himself?

    The s.GUARD lone worker solution is characterised by a very high degree of flexibility. You can define who can activate or deactivate the monitoring: only the supervisor, the lone worker, or both. We will be happy to advise you on the optimal settings for your needs.

    What is the location accuracy inside and outside buildings?

    The app uses the location services of Android and iOS for positioning. These use GPS to determine the position. If there is no direct visual contact with the satellite, this can result in limited accuracy. Positioning inside buildings can be done by scanning a QR code or WiFi.

    How secure is the alerting, especially with a poor GSM network?

    The s.GUARD application is redundantly designed and uses all available channels to transmit alarms.

    What happens in the event of false alarms?

    False alarms can occur. For this reason, the lone worker or his/her supervisor has the option with s.GUARD to define an individual pre-alarm time. During this period, only the lone worker himself is notified of a potentially detected danger (no movement/fall). If this local alarm is not confirmed, an alarm is issued according to the disposition.

    Who bears the costs of a rescue operation?

    A rescue operation is always authorised in accordance with the defined emergency plan of your company. If external agencies are involved (e.g. an alarm centre or the ambulance), the costs for the intervention are always charged directly to your company in accordance with the valid tariff regulations of these organisations.

    Lone Worker Protection