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The Direct-to-Device (D2D) Technology Was Tested in São Luís (MA) with Common Phones and Low-Orbit Satellites; Initiative Aims to Expand Coverage in Remote Areas and Ensure Signal in Emergencies
Brazil has taken an important step toward total connectivity. The first tests of the Direct-to-Device (D2D) technology — which allows satellites to connect directly to common smartphones — were successfully conducted in national territory. The operation was led by the operator Claro, with technical support from the American company Lynk Global, and oversight from the National Telecommunications Agency (Anatel).
The tests took place in São Luís, Maranhão, and involved voice calls and SMS messages using conventional phones such as the Moto G4 Plus, Galaxy S22, and iPhone 13. None of the devices needed modifications to the hardware or software to connect to the six non-geostationary satellites used in the experiment, according to a report by the portal Tecnoblog published in March 2025.
Technology Can Revolutionize Internet Access in Brazil Using Satellite
The connection with the satellite was made through the 850 MHz frequency band, authorized on an experimental basis through Anatel’s Regulatory Sandbox, which temporarily relaxes rules to foster innovations. The regulatory body published an official note highlighting that the initiative aims to bring mobile access to remote regions and areas without cellular tower coverage.
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According to Anatel counselor Alexandre Freire, this technology “has the potential to transform digital inclusion in the country, providing signal in riverine communities, rural areas, and even in emergency situations.” The statement was recorded on the official federal government portal (gov.br) after the conclusion of the tests.
Voice Calls and SMS Sending Functioned Stably
During the tests, the devices were able to make calls of up to 30 seconds with clarity and successfully send text messages, as detailed by Tecnoblog. Lynk Global’s infrastructure used low-earth orbit (LEO) satellites, which reduce latency and allow for more efficient connections.
The great advantage of this technology is that it does not require any external antenna or specific configurations on the phones. The network signal appears directly in the notification bar of the device, just like a traditional cell tower.
Still No Forecast for Commercial Launch
Despite the positive results, there is still no defined date for the commercial launch of D2D technology in Brazil. Anatel stated that it will continue to monitor the tests and evaluate the technical and regulatory feasibility of large-scale implementation. The expectation is that, in the future, the system could also provide internet access via mobile data, in addition to calls and SMS.
According to the site gov.br, the Regulatory Sandbox remains in effect until the end of 2025, allowing other operators and sector companies to also participate in similar tests with the satellite. The technology could be an important ally in increasing communication resilience during natural disasters, power outages, and high-risk areas, especially in Brazil’s North region.
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