DAMM Cellular Systems


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TETRA and DMR Communication Systems

Møllegade 68,
Fax Number

DAMM Cellular Systems is a world leader in the provision of scalable, innovative, user-friendly and cost-efficient TETRA and DMR infrastructure products.

As a key player within professional radio communications for 40 years, DAMM holds a leadership position in developing technology through superior engineering and a constant focus on customer needs and reduced complexity.

Sector specialists

Through their cooperation with leading rail and metro system integrators worldwide, DAMM understands the critical importance of communications within transport infrastructures. DAMM’s high-performing, feature-rich single- and multi-technology TetraFlex® solutions provide crucial voice and data communications integration between operations, staff, passengers and emergency units. Its solutions can deliver ETCS level 2 over TETRA, enabling signalling data to be transmitted with the required accuracy and reliability.

Optimised installation for rail and metro requirements

The compact IP65 encapsulated and ruggedized single-tech and multi-tech outdoor base stations have been optimised for use within rail and metro operations. They are equally suitable for tunnel installation and mounting outdoors directly on buildings or masts alongside the track or in stations, altogether saving significantly on installation costs. Additionally, the single-tech outdoor base station has gained EN 50121-4 certification.

The compact and rugged TetraFlex Outdoor Base Station can be mounted directly on masts and buildings, reducing feeder loss and installation costs.
The user-friendly TetraFlex Dispatcher solution increases operational efficiency, and meets the needs of command and control centers.
Get instant, comprehensive, accurate voice and data recording and logging facilities for CDR with the TetraFlex® Voice and Data Log System.
Use TETRA over LTE with DAMM TetraFlex® soft terminals. Benefit from coverage and data capacity extension for videos and pictures using TetraFlex® Android, iOS & Windows Clients.
The high-capacity rack-based TetraFlex Indoor Base Station is characterised by extremely low power consumption. Available up to 16 carriers.
Moscow Metro: DAMM provides a secure and reliable communication system for enhanced safety and improved operational efficiency.
Mumbai Monorail in India: DAMM provided a user-friendly and cost effective radio communications systems meeting the requirements for operational safety, reliability and efficiency for the monorail.
TetraFlex Network Management provides a user-friendly and highly flexible tool for management, supervision and optimisation of the TetraFlex Network.
TetraFlex Group Bridge enables to perform group calls between any independent TETRA or analogue networks, creating valuable interoperability between many different systems.

Complete coverage and scalability

The fully IP-based technology used by DAMM TetraFlex digital voice and data communications solutions makes it possible to create integrated communications across multiple stations, logistics facilities, depots, maintenance facilities and centralised operational control centres. It also gives full flexibility in site and capacity expansions, even during operation.

Full availability guaranteed

The fully redundant components and system information combined with the intelligent decentralized network architecture guarantee 100% uptime. All information is constantly replicated to all sites in the network, allowing call and data traffic to continue uninterrupted if one or more sites lose connection with the rest of the network.

Fewer frequencies, same coverage and capacity

The DAMM MultiTech Outdoor Base Station BS422 was has the unique ability to enable adjacent base stations to share frequencies and create RF zones that are groups of synchronized coverage areas. This provides a solution that addresses the problems of frequency scarcity and costs by allowing operators to configure base stations to share frequencies and designate BS422s as repeaters.

Intuitive coordination of teams and groups

User-defined groups and staff teams can easily be defined and coordinated. The highly flexible voice communication services support individual simplex and duplex calls, group calls, telephony communications (PSTN) and more, always with crystal-clear voice quality, even in the noisiest areas. For emergency incidents, the system provides emergency calls, man-down facilities and override functions.

Total communications flexibility

The DAMM TetraFlex® Group Bridge enables group calls between any independent TETRA or analog networks, creating valuable interoperability between many different systems. The DAMM TetraFlex Group Bridge solution offers flexible connectivity between groups organized on different networks. Typical examples include group calls between military, police and other emergency units, or even between local, regional or national networks during catastrophes and other mission critical operations.

Easy interoperability and migration

The DAMM TetraFlex Network Bridge enables extension of existing TETRA networks from other suppliers, allowing individual and group communication across networks. The Network Bridge allows users to move between the existing TETRA network and the expansion provided by DAMM – in fact for the users it feels like one network that is offering the same kind of services as always.

Efficient data communications

DAMM TetraFlex data services provide data used for instance for vehicle-tracking systems, offering real-time timetable and journey information to customers, as well as for signalling control and status. It also enables SCADA and telemetry data to be used for reporting of alarms and failures or collecting data for improving operational performances. DAMM’s TetraFlex solution can also be used to provide ETCS level 2 over TETRA, making it an ideal solution for the rail industry.

Embedded software applications for increased operational performance

DAMM TetraFlex® Network Management provides a user-friendly and highly flexible tool for management, supervision and optimization of the DAMM TetraFlex Network consisting of DAMM single-tech and/or multi-tech products. Using DAMM’s voice and data recording and replay facility, it is possible to effortlessly reconstruct incidents and gather valuable statistics on operational performance.

Unlimited third-party application integration

DAMM TetraFlex is supplied with an easily accessible application programming interface (API) that allows straightforward development and integration of customer-designed applications.

Key DAMM TetraFlex features for rail and metro communications include:

  • Reliability: redundancy, back-ups and no single point of failure
  • Compact and IP65-protected, EN-50121-4 compatible housing for direct installation in harsh environment
  • ETCS level 2 via TETRA
  • Frequency sharing: fewer frequencies, same coverage and capacity
  • Easy and quick scalability without interruption of operation
  • Comprehensive network interconnection tool
  • Full redundancy for 100% channel availability and accessibility at all times
  • Easily accessible API for easy integration into third party systems
  • Low power consumption
  • High cost-effectiveness

DAMM solutions and support are available worldwide through an exclusive network of partners.

White Papers

  • DAMM System Brochure

    DAMM TetraFlex® Systems are specifically designed to adapt or grow with you without incurring major additional infrastructure costs.

  • Rail and Metro Brochure

    As urban populations are rapidly increasing and road congestion continues to grow, rail and metro are increasingly becoming the first choice for comfortable and smooth local and long-distance journeys for all levels of society.


  • A Promise of Safety

    DAMM systems offer safe and reliable solutions that help millions of people and companies every day in the transportation industry. DAMM makes communications easier, reliable and simple. A promise of safety means ensuring functionality at all times.

Press Releases


  • Mauritius Metro Express

    Mauritius Metro Express is a partially operational light rail transit system being in the island nation. It will pass through five major cities, including Curepipe, Vacoas, Rose Hill, Quatre Bornes, and the capital Port Louis.

  • Moscow Metro

    The Moscow Metro is one of the world's busiest underground railway systems, and also one of the most extensive.

  • Almaty Metro

    Almaty Metro is the first metropolitan railway or rapid transit system of Kazakhstan. It is the second metro system to be opened in Central Asia.

Products & services

DAMM Cellular Systems A/S
Møllegade 68

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12 Parvis Colonel Arnaud Beltrame
CS 10933
78007 Versailles Cedex

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DAMM Latin America
Rua Santa Cruz n°722 cj 1006
Vila Mariana, São Paulo, SP
CEP: 04122-000

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DAMM Cellular Systems Inc
390 Interlocken Crescent
Suite 350
Broomfield CO 80021
United States of America

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Level 36, Menara Citibank
165 Jalan Ampang
50450 Kuala Lumpur

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DAMM Australia
Shop 4, 7-9 Activity Crescent
Molendinar QLD 4214

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