---
title: HARMAN and Viasat collaborate on in-cabin satcom-based voice calling - Developing Telecoms
description: Automotive technology company HARMAN has announced at MWC26 a collaboration with satellite communications company Viasat to introduce in-cabin voice calling over satellite connectivity.
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date: 2026-03-03T09:04:27Z
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Automotive technology company HARMAN has announced at MWC26 a collaboration with satellite communications company Viasat to introduce in-cabin voice calling over satellite connectivity.

At MWC26 HARMAN is demonstrating satellite-enabled voice calling capabilities on its Ready Connect Telematics Control Unit (TCU), highlighting how the solution can support anytime, anywhere communication – even in areas with intermittent to no cellular coverage.

By combining HARMAN’s Ready Connect TCU product and Viasat’s proven mobile satellite services (MSS) satellite constellation, the companies say the collaboration unlocks a new level of reliable, resilient, ubiquitous connectivity.

The partners explain that the satcom-based voice calling feature facilitates essential communication where low data rate, safety-relevant connectivity is required. Augmenting rather than replacing terrestrial (cellular) connectivity, satellite networks can provide dependable communication in areas with intermittent cellular coverage to enhance safety, support emergency response and maintain continuous connectivity on the road, especially areas beyond the reach of terrestrial networks.

The new voice-calling capability leverages HARMAN’s Ready Connect TCU, which supports 4G, 5G and narrowband non-terrestrial network (NB-NTN) satellite connectivity using the same base solution. Viasat provides access to its satellite network and licensed global spectrum rights.

Together, the companies say they aim to strengthen automotive OEM confidence in emerging satcom capabilities as a long-term complement to terrestrial networks.

Alongside voice calling, the collaboration supports messaging, emergency SOS features and low-data-rate telematics use cases through NB‑NTN satcom and Ready Connect. This includes benefits like remote vehicle operation, stolen vehicle tracking and remote vehicle diagnostics.

Looking ahead, the HARMAN and Viasat partnership includes a roadmap to broadband satcom services enabled by Viasat. This advancement has the potential to unlock additional in‑cabin media services, streaming and high‑bandwidth connectivity – strengthening the future of the software‑defined, always‑connected vehicle.

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