PRIORITY – Critical communication solutions
New solutions and technologies for public safety communications.
Duration: 01.06.2019 – 31.12.2021
Financed by: Business Finland
Further information: Marjut Koskela +358 40 729 9937 email@example.com
A major project PRIORITY will research, develop and trial critical communication solutions for authorities and remote businesses. A key target will be to complement existing mission critical voice and messaging services with broadband data capability, using commercial 4G and 5G wireless networks. The objective of the project is to improve the competitiveness of Finnish ecosystem of critical communications and situational awareness solutions.
Research topics will concentrate on four areas:
1) Broadband service availability in extremely remote locations
2) Quality of Service differentiation and provisioning for diverse needs
3) Communication security
4) Interworking of dedicated and commercial networks.
Project have several expected outcomes, where the most significant outcomes are technical solutions to be further developed into products in near future, new and evolved ecosystems in the area of critical communication, resulting in growing international business for the participants and the next capability level in safety authorities’ mission critical communication.
The project creates joint activities with many different actors in the field of critical communication. Project is part of Business Finland Digital Trust Finland program.
The significance of critical communication lies on one hand in the divergence of societal threats: for instance, cyberattacks, asymmetrical warfare and terrorism, as well as the climate change. On the other hand, developments in ICT technology, such as artificial intelligence, internet of things and 5G communication, create opportunities for completely new solutions, businesses and ecosystems in the field of critical communication.
So far public safety mission critical communications have been based on dedicated narrowband technologies, such as TETRA and Tetrapol. In the future, 5G mobile technologies will complement and replace them. This is not only a change of the wireless technology underneath but also a renewal of the whole Mission Critical PPDR Broadband ecosystem.
All topical ICT technologies will be involved in the transition consisting of smart devices and apps, analytics and AI, IoT, drones and many others. As we know, 5G will change societies more than the two previous-generation networks combined. Public Safety users such as police and rescue services have special requirements, which are beyond the requirements of consumers or enterprises.
These include high availability, reliability of services and uncompromised security, including protection against cyber security threats. Even though the solutions for public safety mission critical communications will be based on mainstream technologies, as such these are not enough due to very demanding requirements of reliability, security and high availability. The cooperative nature of the PRIORITY project will create new mission critical communication business ecosystems and support existing ones.
Priority will study future solutions for radio communication services that are critical for public safety and situational awareness. These put an emphasis on reliability and availability of the critical communication networks, in cities as well as in remote locations. Traficom will provide authority support and insights to the project.
PRIORITY consortium consists of 4 research partners as well as 13 companies and authorities. In collaboration with Centria University of Applied Sciences, the research parties include the University of Oulu, Turku University of Applied Sciences and VTT Technical Research Centre of Finland. Five companies of the consortium -Airbus, Bittium, Digita, Exfo, Keysight- have their own parallel industry projects ongoing. Other partners are the Finnish Transport and Communications Authority Traficom, The Finnish Defence Forces, Rescue services in Finland, Elisa, Erillisverkot, Fairspectrum, Verkotan and Central Union of Agricultural Producers and Forest Owners of Finland.
The solutions will be trialed in live network deployments, by applying the 5G-Force platform and scenario-specific technology blocks. Centria University of Applied Sciences test network in Ylivieska is part of 5G-Force platform for verifying the new 5G technology and for developing new features and vertical applications. Centria’s test network has a history since 2009 as a test platform for various enterprise and research-driven applications.
PRIORITY is researching and trialing Mission Critical Communications solutions for authorities and remote businesses. Project aims for advancement of Finnish Critical Communications Ecosystem. PRIORITY is a part of The Digital Trust Finland Program by Business Finland. Critical communications today must be prepared not only for typical authority operations, but also for major accidents, cyber-attacks, terrorism, pandemic or natural disasters brought by climate change. With international cooperation, it is possible to build the critical communications of different countries to work better together in broad cross-border emergencies.
The consortium for the project coordinated by the University of Oulu includes four other research partners: Centria University of Applied Sciences, VTT, Jyväskylä University of Applied Sciences and Turku University of Applied Sciences. Fifteen companies and authorities are also involved. Project partners include Airbus Defence and Space, Agco, Bittium, Digita, Exfo, Goodmill, Keysight, Transport and Communications Agency Traficom, Defence Force, Rescue, Elisa, Separate Networks, Fairspectrum, Verkotan and MTK ry ( Central Union of Agricultural Producers and Forest Owners).
Photo: Tapio Mäkinen / Airbus.
The nationally and internationally significant PRIORITY project researches and tests new solutions for critical communication, security and remote connections between security authorities and companies. Critical communications today have to prepare not only for typical government operations but also for major disasters, cyber-attacks, terrorism, pandemics or natural disasters brought about by climate change.
The PRIORITY research project’s first trial was organized at the motorsport center OuluZone on 28 9. – 2.10.2020 to test the results of the research work carried out so far in the project. At OuluZone, critical communication situations were demonstrated by building a local 4G / 5G test network in the area and utilizing the latest communication technology and drones. The Finnish Transport and Communications Agency Traficom has been actively involved in the PRIORITY project: the frequency license received from Traficom made it possible to carry out the field tests. The test network utilized, among other things, the frequencies of the mobile operator Elisa within the framework of a frequency license granted by Traficom. The Finnish police, on the other hand, gave the permission to act as a police officer, who performs surveillance and alarm response in a Finnish operating environment, in the video production of the PRIORITY project filmed by NTRNZ Media. This was important for the field test scenario, as the police are a key security authority. During the testing event, a press conference was held where research institutes and collaborators presented critical communication technology and telecommunication use cases.
Centria’s project engineer Juha Erkkilä (left), RDI manager Marjo Heikkilä and development engineer Pentti Eteläaho are planning drone measurements of the local 4G / 5G test network in OuluZone. Photo: Marika Hautala.
Centria was actively involved in the design and implementation of the first trial of the PRIORITY project. The research team was responsible for integrating the tactical network functionalities related to the tactical network architecture and setting up the tactical bubble communications. Other responsibilities included drone control, transmission of the video image produced by the drone, thermal camera shots and measurements of the coverage area of the local test network, which are opened in more detail in the sections Drone control and image transfer via mobile phone network, as well as Quantitative and qualitative measurements of use cases. Centria also took responsibility for adapting the roles of the collaborators to the PRIORITY project’s critical communication research and trials.
The Future of Communication for Authorities
The Virve 2.0 project will provide more diverse and streamlined wireless broadband services to authorities and other mission critical operators. The Finnish public safety network (Virve) is a key communication system used by the authorities, which will reach the end of its technical life at the end of this decade. The modernization of the Virve network is needed, as the current system does not meet all the current requirements as it is based solely on the use of voice communications and short messages. New features are expected from the Virve terminal’s user interface, such as a more versatile group communication service and video transmission for communication between authorities and companies. The partner involved in the PRIORITY project, Suomen Erillisverkot Group, is responsible for Virve 2.0.
PRIORITY supports the Virve 2.0 project and produces important information for Erillisverkot about the possibilities of new technology in authority communications. The current Virve network is based on Airbus’ TETRA technology, in addition to which Airbus has supplied the terminals used in the Virve network and numerous network applications. In addition to Finland, Airbus has delivered critical communications solutions to more than 70 countries. Airbus Defense and Space Oy, a Finnish partner in the PRIORITY project, is developing new solutions based on 4G / 5G technology for critical communications. In the testing event of the PRIORITY project, e.g. Airbus’ Tactilon Agnet group communication service, which was used, among other things, for group speech and the transmission of video filmed by drones to field actors. In addition, Dabat hybrid terminals were used, which support existing TETRA networks as well as new broadband on the smartphone platform. Airbus terminals are being tested in all trials of the PRIORITY project.
Airbus’ Tactilon Agnet group messaging service transmits the drone image to the Dabat hybrid terminal during a test event. Photo: Airbus / Tapio Mäkinen.
Elisa Corporation has been selected on the basis of a tender as the only radio network supplier in the Virve network, and Virve 2.0 subscriptions will use Elisa’s public mobile network. The new authority network service Virve 2.0 is based on broadband technology, which is made possible by Elisa’s mobile phone technology. Elisa plays a significant role in developing government communications so that broadband technology can meet the needs of authorities and companies. Elisa Corporation is also one of the partners in the PRIORITY project.
Utilization of a Tactical Mobile Network in Authority Communications
The tactical mobile network is part of the critical communication system being studied in the PRIORITY project. A tactical bubble refers to a temporary, static, or mobile radio resource built to support critical communications that provides the services needed for critical communications to the users in a variety of extreme conditions. A tactical bubble can be used to secure a broadband connection in emergency situations. Authorities or companies may need to operate in an area where mobile network coverage is weak, congested or, at worst, the target of a cyber-attack. The local voice service allows communication within the bubble even if the internet connection is lost.
A tactical bubble was built for the first trial of the PRIORITY project, which may contain several local cells. In OuluZone, the bubble consisted of two 4G cells as well as one 5G cell, which were connected to each other by a tactical wireless backbone network (Bittium TAC WIN), allowing for rapid cell transfer should the situation require it. The tactical bubble was connected to the Internet via a commercial 4G connection. Instead of a 4G connection, a broadband connection can also be brought into the area by expanding the wireless backbone network that connects the cells.
Centria, Bittium and EXFO in particular have become acquainted with mobile base stations for field conditions, which supplied the base stations for the PRIORITY project testing event. The construction of a local network in the OuluZone test area enabled the testing of more efficient telecommunication connections and the demonstration of concrete use scenarios. The first trial also tested the connection between the bubble and the mobile network.
Systems expert Juha Kemppainen presenting Bittium’s tactical data transmission products and services. Photo: Marika Hautala.
Bittium Wireless Oy ‘s system expert Juha Kemppainen (Program Manager, Senior Specialist, System Architectures) and research and development manager Ari Hulkkonen (Senior Manager, Research and Technology) presented a tactical communication TAC WIN (Bittium Tactical Wireless IP Network) system developed by Bittium during the trial week of the PRIORITY project, which connected the local base stations of the tactical bubble with a high-speed wireless link. The setting up of the network and the associated mobile (vehicle-mounted) base station was demonstrated during field tests and a press conference. In addition to the local base stations, Bittium Tough SDR software radio equipment was connected to the TAC WIN network, which would allow, for example, the Defense Forces’ official assistance department to join the tactical Bubble. The solution presented by Bittium can be used to transmit and share a real-time snapshot of management systems (spatial information, image, sound, video, sensor data) between all authorities operating in a tactical bubble locally, to the defense networks as well as to the public telecommunications network, for example through a commercial 4G connection, which allows operations over a wide area. Bittium’s TAC WIN system and software radio equipment are widely used by the Defense Forces in their tactical data transmission applications.
– Our hardware is scalable and offers users network services from tactical systems to the commercial network, taking security into account. A distributed tactical voice and messaging service developed by Bittium is currently locally integrated into our tactical bubble. In addition, networked terminals are connected via an Internet connection to Airbus’ Tactilon Agnet group communication service used in government network, which acts as the main connection service in these field tests. The local voice and messaging service will be able to provide users with critical services, even if the connection to the Internet and services operating over it is lost, Hulkkonen said at the PRIORITY project trial.
Research and Development Manager Ari Hulkkonen holds Bittium’s Tough Mobile, which enables certified data-secure broadband data transmission and speech in its area of operation. Photo: Marika Hautala.
Bittium sees the participation in the PRIORITY project as valuable, as the consortium’s versatile critical communication technologies are in common test use. -It is important to us to bond everyday technology and military technology together, to demonstrate the capability of the combination and to implement all the performance in the environment. Thanks to the official scenario of the trial, the compatibility of capabilities can be verified, Kemppainen describes the benefits of project cooperation. For Bittium, field tests of the equipment stock are commonplace.
Drone control and image transfer via mobile network
Centria’s drone and thermal imager utilized in the trial. In the picture on the right, right next to the stand, the Centria portable base station can be seen. Photo: Juha Erkkilä.
Drone technology is a strong area of expertise for Centria’s research team. During the first trial of the PRIORITY project, Centria was responsible for test flights related to drone image transfer and control, as well as thermal camera flights and their demonstration. During the first trial, it was tested how situational information can be transferred in real time to all actors in the field. The research team also performed cellular coverage measurements on the mobile phone network with drones.
Pentti Eteläaho, Centria’s development engineer, uses a thermal camera image to enhance situational awareness. Photo: Marjut Koskela.
Quantitative and qualitative measurements of use cases
Quantitative and qualitative evaluation are an important part of field testing. During the first trial of the PRIORITY project, quantitative coverage and delay measurements of use cases were carried out to study the coverage and data rate of the 4G / 5G test network. Trial’s quantitative and qualitative measurements are verifiable indicators that the critical communication technologies utilized during the PRIORITY project will work and the project’s objectives will be achieved. Authorities need to be able to rely on smooth data transfer at critical situations, and the critical communication objectives of a project are set from the perspective of user needs. Through real-world situations, telecommunications researchers’ study, among other things, the amount of data to be transmitted, the transmission speed, the transmission frequency, the transmission delay, the number of errors, the prioritization of data in relation to other data, and the security of data transmission.’
The PRIORITY project trial also carried out qualitative observation of use cases based on user experiences. The researchers, experts and collaborators who participated in the trial got acquainted with and tested the technologies used during the trial, after which they responded to the user survey based on the experience gained.
Centria conducted numerous measurements to assess the quality of service provided by the tactical bubble. Measurement data is displayed on the phone screen. Photo: Marika Hautala.
Keysight Technologies Finland Oy is one of the partners in the PRIORITY project, which specializes in measuring, testing and manufacturing navigation instruments and equipment. Keysight plays an active role in the trials of the project and the company is particularly interested in setting up a private network and validating its operations. – During the PRIORITY project, Keysight hopes to receive answers to what is required for the implementation of a separate bubble, what kind of service can be obtained through it, what practical problems may be noticed and what should be considered in specific use and deployment situations. An interesting collaborative project between companies and research organizations overall. It is new to me to be involved in such. It will be interesting to see how this collaboration works and to follow the enthusiasm of different actors in managing, developing and thinking about their own areas, says Eero Pulkkinen, Keysight’s Senior Product Manager, who is responsible for the post-processing and visualization of measurement results.
Keysight brings to the PRIORITY project expertise in the measurement of wireless networks and related software products, measuring devices and measurement software, as well as analysis software that can be used to examine the measured data in more depth. –Private networks and the way they are used, where authorities also need commercial technology services, are becoming important with 5G technology. Although the bubble is controlled by the authority, commercial technology is being utilized and the interface is very interesting. The biggest benefit for us from the project is seeing and observing the different uses and applications of critical communication. Through it, we learn a lot about what technology used in critical communication requires in practice, what kind of products are needed to measure such a network, and how we may need to be able to visualize the operation of the network and the measurement results afterwards. The different uses are those that provide additional information and enable us to perform sufficiently good analyzes and add value to users that use our software, says Pulkkinen.
Video production from the Priority project
In addition to the field tests, a video production of the three trial trials of the PRIORITY project will be produced, showing the trial-related critical communication scenarios and describing trials. Each trial has its own subject area, which are riot at a mass event, smart rural business, and a major disaster. The first trial told of a riot at a mass event, the scenes of which were filmed at the University of Oulu, in the city center of Oulu and at the motorsport center Oulu Zone.
Videoing a scene in which a field director directs a police patrol to act to catch the criminals. The polices are played by consortium specialists. Photo: Marika Hautala
The scenes from the scenarios of the first trial were mainly played by the members of the consortium. Additional help was also received from the Oulu Emergency Center, as an emergency response center officer was needed for the first trial. The aim was to select individuals who had held similar types of official positions during their lifetime. The purpose of the video production produced by the Oulu-based photography studio NTRNZ Media is to increase the visibility of the PRIORITY project, build the project’s image and disseminate the research results.
An emergency response center scene for the video production of the PRIORITY project was staged for the University of Oulu. Photo: Marika Hautala.
One of the topics of PRIORITY project is Smart Rural Business where the aim is to increase the coverage of mobile network and data capacity for agriculture in remote areas.
In Agriculture and Forestry complementary telecommunications network solutions may be required to ensure opportunities that smart agriculture provides.
Focus is on intelligent agriculture technologies, such as data transmission for remote control of the tractor, data collection from various sources, data visualization, the utilization of drones and AI, as well as rapidly deployable network traffic monitoring capabilities from the cyber security perspective.
The Priority project researching critical communications for authorities held the final trial in the port area in early November 2021. An entity of private networks was built at the port area to support communication of the authorities in the event of a major accident. New critical communications solutions and cyber security technologies, a robot dog, chemical sensor, drones, body-cameras and remote control of a smart tractor were tested and demonstrated in the port area.
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Smart Agriculture technologies were tested on the Saarijärvi Bioeconomy Campus
The demonstration utilized remote control of the tractor, as well as drone technology. Photo: Marjut Koskela / Centria.
Centria coordinates a total of three trials during the PRIORITY project. Complementary telecommunication network solutions and smart agriculture technologies aimed at rural areas were tested on the Bioeconomy Campus in Saarijärvi Tarvaala last week in cooperation with the companies participating in the project, as well as VTT, the University of Oulu, Jyväskylä University of Applied Sciences, Turku University of Applied Sciences and POKE Vocational College.
For the duration of the trial, a local 5G network was built in the area to emulate efficient data transfer and problem situations. In the field, smart agriculture technologies were tested, such as data transmission in the local base station network, remote control of the tractor, sensors inside the robotic tractor, utilization of drone technology for data collection and detection of foreign objects and fertilizer application by artificial intelligence. Emerging ICT technologies such as artificial intelligence, IoT, 5G communications and satellite analytics create new opportunities for businesses and ecosystems.
Marjo Heikkilä, RDI Manager at Centria University of Applied Sciences and an expert in wireless telecommunications, commented on the trial event held at the Saarijärvi Bioeconomy Campus as follows: “Farming technology is one of the important focus areas in Centria’s research activities. At the Tarvaala Bioeconomy Campus, we were able to take the results of the research to the actual farming environments and for end users to try out. We study the usability of private network solutions for data transmission in agricultural applications. Drone technology, field sensors and barn air quality sensors produced data for the needs of smart agriculture.”
In the test, the Valtra tractor is controlled over the net from a remote cab. Photo: Marika Hautala / Centria.
The partners in the PRIORITY project are Airbus, Agco, Bittium, Digita, Exfo, Goodmill, Keysight, Finnish Transport and Communications Agency Traficom, the Finnish Defense Forces, Rescue, Elisa, Separate Networks, Fairspectrum, Verkotan and The Central Union of Agricultural Producers and Forest Owners. The research organizations of the project are the University of Oulu, VTT, Centria University of Applied Sciences, Jyväskylä University of Applied Sciences and Turku University of Applied Sciences. Researchers from each were present at the Bioeconomy Campus to collect research material and test solutions together with companies.
“We are incredibly pleased and taken to take the opportunity to serve as a test platform for the PRIORITY project. This was a great first bite of our vision for the future to serve as an environment for the development, testing and training of recent technology solutions for the bioeconomy. We are happy to cooperate with research institutes and companies at the interfaces of different areas of expertise, “says the director of the JAMK Institute for Bioeconomy Minna Lappalainen.
Harri Posti, Research Manager at the University of Oulu’s Centre for Wireless Communications (CWC), was satisfied with the Tarvaala framework with its fields and barns. “The week was an intense and technically diverse workout. Getting things technically working required adjustment and experimentation. Although there was something left to study, the essentials worked: the tractor was running and the drones were flying, sensor data could be collected and displayed. New uses for 5G were demonstrated, and solutions from different players were tested, using a number of different radio technologies.”
The PRIORITY project explores novel solutions for critical communication, security and remote access between security authorities and rural businesses in significant national and international cooperation. International co-operation makes it possible to build communication between authorities in different countries to work better together in large-scale cross-border emergencies. The effectiveness of critical communication between different countries is emphasized, for example, in terrorist situations.
One of the research topics of the PRIORITY project is also Smart Rural Business, which aims to increase the vitality and attractiveness of sparsely populated areas. Important enablers of smart rural business include digitalization, advanced telecommunications, and artificial intelligence. There is a lot of telecommunications in smart agriculture, which is challenging to ensure, especially in sparsely populated areas. Especially in remote rural areas, for example, the large amount of data processed, integrated information systems and real-time video transmission need proper communication connections for immediate data transmission.
The second trial of the PRIORITY project aimed at better coverage of mobile networks, which will bring more data transmission capacity to agriculture and forestry. It also strongly emphasizes the importance of the functionality of telecommunications in farm operations and the needs of the farmer in different cases of farm use. In agriculture and forestry, complementary telecommunication network solutions may be needed to ensure that the opportunities offered by smart agriculture are exploited.
PRIORITY enables versatile cooperation with several different actors in the field of critical communication. International cooperation also opens opportunities for Finnish industrial players to enter new markets. PRIORITY also cooperates with the Finnish-wide 5G test network ecosystem, where 5G technology can be verified in the development of new features and vertical applications. Field research is carried out using, among other things, the local 5G network and new communication and drone technology. The nationally and internationally significant PRIORITY is part of Business Finland’s Digital Trust program.
A trial related to Smart Agriculture is being prepared
The second trial of the PRIORITY project will focus on Smart Rural Business, which aims to increase the vitality and attractiveness of remote areas. Important enablers of smart rural business include digitalisation, advanced telecommunications and artificial intelligence. There is a lot of telecommunication in agriculture, and ensuring the usability of it is challenging, especially in sparsely populated areas. Especially in remote rural areas, for example, the large amount of data processed, integrated information systems and real-time video transmission need proper communication connections for immediate data transmission.
Operating in intelligent agriculture is hampered by the silage of data in the systems of different manufacturers and the lack of technologies and organizations that connect data sources. Although more than 70 per cent of households in densely populated areas were covered by the availability of high-speed fixed broadband connections, the proportion in sparsely populated rural areas was less than 30 per cent at the end of 2019.
The second trial of the PRIORITY project aims at better coverage of mobile networks, which will bring more data transmission capacity to agriculture and forestry. It also strongly emphasizes the importance of the functionality of telecommunications in farm operations and the needs of the farmer in different cases of farm use. In agriculture and forestry, complementary telecommunication network solutions may be needed to ensure that the opportunities offered by smart agriculture are exploited.
Modern technologies provide, among other things, more accurate data for the use of farms and forestry, which enables work to be done proactively. Large spaces can also be monitored centrally. In addition, certain agricultural and forestry work can be automated so that work is more accurate and faster.
The second trial of the PRIORITY project will test intelligent agricultural technologies, such as local base station network communication, remote tractor control (Valtra tractor), sensors inside a robotic barn, utilization of drone technology for data collection and extraction of foreign objects and identification of fertilizer application by artificial intelligence.
A tactical base station and information security to be set up at the site will create operational reliability for the ERP system that controls intelligent technologies. Field testing will take place in Saarijärvi during 2021. As with each of the three trials in the project, a video of the field tests in the second trial will be produced, showing the trial-related critical communication use scenarios and documenting the field testing.
A video of the scenarios for the first trial has now been released
The research results of the PRIORITY project will be presented in three trials, which will show critical communication scenarios and describe field testing. A video production will be produced for each trial, with the aim of improving the visibility of the project and disseminating research results. By describing scenarios and visualizing the technologies under study, complex research can be popularized and made more approachable. With the help of scenarios and visualizations, it is also easier to manage the entities under study. The filming of the video productions is outsourced to the studio NTRNZ Media, allowing experts to better focus on doing the research.
The first video production of the project has been completed. It tells the story of a riot at a mass event: There’s a concert going on for the general public, with which the mobile networks are congested. An event visitor has noticed a disturbance caused by the rioters. To reach the rioters, the authorities are taking advantage of the temporary radio coverage produced by a tactical bubble, group communication service, and video from the drone.
The scenes of the first video were filmed at the University of Oulu, in the city center of Oulu and at the OuluZone motor sports center. The project had permission from the Finnish police to act in the video as a police officer performing surveillance and alarm tasks in a Finnish operating environment. This was important for the field test scenario, as the police are a key security authority. In the video, the police and the security guard are played by the researchers and experts working on the project.
The size of the PRIORITY consortium increased with three major partners
The consortium of the PRIORITY project was supplemented by one research institute and two business partners. In addition to Centria University of Applied Sciences, the University of Oulu, VTT and Turku University of Applied Sciences, the consortium’s research institutes now also include Jyväskylä University of Applied Sciences, which also has strong expertise in intelligent agriculture thanks to the Saarijärvi Bioeconomy Campus. The topic of the second trial of the PRIORITY project is Intelligent Agricultural Business.
New business partners in the PRIORITY consortium include Agco and Goodmill, which will significantly complement the project’s expertise in smart agriculture and telecommunications technologies. Other partners in the project are Airbus, Bittium, Digita, Exfo, Keysight, the Finnish Transport and Communications Agency Traficom, The Finnish Defense Forces, Rescue, Elisa, Separate Networks, Fairspectrum, Verkotan and The Central Union of Agricultural Producers and Forest Owners.
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