Photo by Francesco Ungaro on Pexels

From Lab to Launch: Direct-to-Device Enters the Commercial Era

While much of the telecom industry’s attention remains fixed on 6G research timelines and the agenda debates surrounding WRC-27, a quieter but arguably more immediately impactful revolution is already unfolding. Direct-to-device (D2D) satellite connectivity — the ability to reach an ordinary, unmodified smartphone directly from orbit — has crossed the threshold from controlled trials into live commercial deployments. And it’s happening faster than many analysts expected.

Three operators are now at the forefront of this shift: French telecom giant Orange, LEO-focused connectivity specialist Skylo, and Ukrainian carrier Kyivstar. Each is offering what the industry is broadly calling “continuity services” — a baseline layer of satellite coverage that kicks in precisely when terrestrial networks can’t. Together, they represent the first meaningful wave of commercial D2D services, and they’re doing it using two fundamentally different orbital approaches.

Two Paths to Your Phone: GEO vs. LEO

The D2D ecosystem is currently bifurcating along orbital lines, and understanding the distinction matters enormously for operators evaluating their own strategies.

The GEO Approach

Geostationary orbit (GEO) satellites sit approximately 35,786 kilometers above Earth, providing wide-area coverage from a fixed position relative to the ground. For D2D, GEO systems offer the advantage of large, established footprints and mature spectrum arrangements. The tradeoff is latency — the round-trip signal delay of roughly 600 milliseconds makes real-time voice and interactive applications challenging. However, for messaging, SMS fallback, SOS alerts, and basic data continuity, GEO-based D2D is entirely fit for purpose. Orange’s D2D continuity offering leans on GEO infrastructure, providing a reliable backstop for customers who venture beyond the boundaries of terrestrial LTE and 5G coverage across Europe and Africa.

The LEO Approach

Low Earth orbit (LEO) constellations operate at altitudes between roughly 500 and 2,000 kilometers, dramatically reducing latency to under 100 milliseconds in many configurations. Skylo, which operates a LEO-based narrowband network originally designed for IoT but now extending to smartphone D2D, is partnering with mobile operators to layer satellite coverage on top of existing mobile plans. Kyivstar — a Ukrainian operator that has faced extraordinary pressure on its infrastructure due to ongoing conflict — has emerged as a compelling real-world test case for D2D’s value as a resilience tool. For Kyivstar, satellite continuity isn’t a premium feature; it’s become a critical infrastructure necessity.

The Standards Engine Behind the Services

These commercial launches didn’t happen in a vacuum. They’re built on the back of 3GPP’s non-terrestrial network (NTN) standardization work, particularly the Release 17 and Release 18 frameworks that formalized how 5G NR and NB-IoT can operate via satellite. Release 17, completed in 2022, defined the core NTN architecture. Release 18 expanded satellite coverage capabilities and improved handling of the Doppler shift and propagation delay challenges inherent to satellite links — especially critical for LEO constellations where satellites are in constant motion relative to ground users.

Crucially, the D2D services now launching are designed to work with existing handsets — no satellite-specific hardware, no external antenna dongles. Chipset-level support from vendors including Qualcomm and MediaTek has been essential, embedding NTN modem capabilities into the same silicon powering mainstream 5G smartphones. As device refresh cycles continue, the addressable user base for D2D services will grow organically without requiring consumer behavior changes.

What “Continuity” Actually Means for End Users

It’s worth being precise about what these first-generation commercial D2D services do and don’t offer. The term “continuity” is deliberate — these are not full broadband satellite subscriptions. Current services focus on:

SMS and messaging fallback: Allowing texts and messaging app communications to route via satellite when cellular is unavailable. Emergency SOS: Following the trail blazed by Apple’s Emergency SOS via Satellite, operators are embedding satellite-based emergency alerting into standard mobile plans. Location sharing: Basic telemetry and location pings for personal safety and asset tracking applications.

Higher-bandwidth applications — streaming, voice calls, high-resolution data — remain constrained by current spectrum allocations and link budgets, though that boundary is expected to shift as constellation capacity grows and spectrum coordination at WRC-27 potentially opens additional bands for satellite downlink to devices.

Market Implications: Coverage as a Competitive Differentiator

For mobile operators, D2D continuity services represent a significant commercial opportunity reframed: coverage is no longer solely a function of tower density. Operators can now credibly market true national — and even international — coverage without building out infrastructure in every remote valley or maritime corridor. This is particularly compelling for operators in markets with large rural or underserved populations, exactly the profile of many of Skylo’s and Kyivstar’s target markets.

The competitive pressure is real. With Apple already normalizing satellite emergency messaging for hundreds of millions of iPhone users globally, mobile operators risk being disintermediated if they don’t integrate D2D into their own service layers. Embedding continuity at the operator level — rather than leaving it as a handset OEM feature — allows carriers to retain the customer relationship and the associated service revenue.

Looking Ahead: D2D as Infrastructure, Not Innovation

Industry observers increasingly argue that D2D will follow the trajectory of VoLTE and VoWiFi — technologies that began as premium differentiators and became baseline expectations within a few years. As 3GPP Release 19 and eventual 6G NTN specifications continue to mature, the line between terrestrial and non-terrestrial network layers will blur further.

For now, the message from Orange, Skylo, and Kyivstar is clear: direct-to-device has left the lab. The commercial era has begun, and operators still sitting on the sidelines may find the window for first-mover advantage closing faster than their planning cycles anticipated.