Mixvoip is a Luxembourg telecom operator providing business voice, SIP trunking, connectivity and mobile services across Luxembourg and the Greater Region. It holds its own telecom operator relationship and provides the network and voice infrastructure behind its services.
An important distinction is that Mixvoip is the operator, while Voxbi is its managed Cloud PBX and business phone platform. Businesses can therefore use Mixvoip for SIP connectivity with another PBX, or choose Voxbi when they want a fully managed hosted phone system.
This page focuses on Mixvoip as a telecom and business telephony provider. For a detailed review of the Voxbi Cloud PBX product itself, see the separate Voxbi profile.
⏱ 6 min read · 🇱🇺 Local provider · 📅 Updated July 2026 · 🔗 mixvoip.com
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Mixvoip holds its own operator licence from the ILR (Institut Luxembourgeois de Régulation) and runs its core infrastructure from Luxembourg data centres. This is worth pausing on. Many providers marketed as Cloud PBX in Luxembourg are resellers of international platforms. Mixvoip is the operator itself.
In practice, calls, numbers, and support all live under one Luxembourg-regulated entity, with GDPR applied locally.
Mixvoip covers four business service areas. Most competitors cover one or two. This matters when you want a single point of accountability for voice, data, and mobile.
Certified for 3CX, Innovaphone, and Wildix. Connects an existing PBX to the public network over the internet. See the SIP trunking glossary entry for a plain-language explanation.
A fully managed hosted phone system. Softphones, mobile app, desk phones. No hardware on premise. See the Voxbi features overview for details.
Dedicated connections, plus a backup path over Eltrona's coaxial network, physically independent from fibre infrastructure.
Business SIM cards on the POST mobile network, mobile device management, and mobile data backup.