📞 Proximus NXT: enterprise ICT and Cisco-powered UC in Luxembourg
Proximus NXT is the enterprise ICT and telephony division of Proximus Luxembourg SA, created in 2019 from the merger of Telindus and Tango. With 750+ employees and a 40-year Telindus heritage, it serves medium-to-large enterprises and public sector with Cisco Unified Communications, Microsoft Teams Voice, and Business ONE bundles.
⏱ 6 min read · 🇱🇺 Local provider · 📅 Updated April 2026 · 🔗 proximus.lu
🏢 Who Proximus NXT is
Proximus NXT is the enterprise ICT and telephony brand of Proximus Luxembourg SA. It was created in 2019 when Proximus Group merged Telindus (40+ years as Luxembourg's leading ICT integrator) and Tango into a single legal entity.
The company has 750+ employees across three customer-facing brands: Proximus NXT for enterprise, Tango for residential and micro-business, and Codit for Azure and AI integration services. The Telindus heritage gives Proximus NXT deep institutional relationships in Luxembourg, particularly in public administration, banking, and healthcare.
Proximus NXT is ILR-regulated, holds ISO 27001 certification for information security, and positions itself as a full-service partner for managed IT, unified communications, and connectivity.
📦 What Proximus NXT offers
Three distinct telephony products plus a broader ICT services portfolio, targeting different segments from SME bundles to large enterprise rollouts.
🏛️ Unified Collaborations (Cisco-powered UC)
The flagship enterprise UC suite. Cisco Webex Meetings, Webex Teams, softphone, video conferencing, presence, and compliance recording. Aimed at medium-to-large organisations with existing Cisco infrastructure or a preference for the Cisco ecosystem.
🌐 Teams Voice
Cloud-hosted Microsoft Teams telephony via Direct Routing. Proximus NXT manages setup, configuration, and updates end-to-end. Requires Microsoft 365 licenses with the Teams Phone add-on.
📦 Business ONE (SME bundle)
Launched around 2025 as an SME-focused package. Three tiers (Start, Smart, Premium) combine internet connectivity, managed telephony, VPN, and cybersecurity. Designed to close the gap between enterprise UC and smaller-team needs.
📱 Go Mobile NXT
Business mobile plans running on the Tango network (same Proximus group). Pay As You Use option with no commitment; device financing over 24 or 36 months.
Full product details at proximusnxt.lu.
⚖️ Quick compare with two local rivals
Proximus NXT is a local Luxembourg operator with an enterprise focus. This page compares it against two other enterprise-leaning local operators, selected at random from the same category.
🔷 Proximus NXT
Local operator · this page
You are here
ILR-regulated: ✅
Public pricing: ❌ quote only
ISP independence: ⚠️ bundled option
Greater Region numbers: ⚠️ LU-focused
SIP trunks: ✅
Support languages: 4
🏢 DEEP Telecom
Local operator
🔗 deep.eu
ILR-regulated: ✅ via POST
Public pricing: ❌ quote only
ISP independence: ⚠️ partial, often bundled
Greater Region numbers: ⚠️ LU-focused
SIP trunks: ✅
Support languages: 4
Comparison reflects public information. Sources linked from each provider page. Not a ranking.
👥 Typical client profiles
Based on how Proximus NXT positions its product portfolio.
🏛️ Medium-to-large enterprises and public administration
The core segment. Organisations with 50 to 2,000+ users, internal IT teams, and formal procurement processes. Telindus's 40-year heritage gives strong institutional standing in public sector and regulated industries.
🏦 Banking, healthcare, and regulated industries
Customers needing ISO 27001-certified operations, compliance recording, and enterprise SLA tiers. Proximus NXT's certification posture matches these requirements directly.
💼 Cisco or Microsoft Teams standardised organisations
Businesses with existing Cisco infrastructure (phones, Webex) that want continuity, or Microsoft 365-first organisations wanting Teams Voice from a managed local provider.
🏪 SMEs using Business ONE
Smaller businesses that want a bundled package (connectivity, telephony, security) from a single enterprise-grade supplier. The SME bundle was launched specifically to broaden Proximus NXT's reach beyond its traditional enterprise base.
🎯 Where Proximus NXT stands apart
Three positioning points that the comparison table above does not fully capture.
🏛️ 40-year Telindus institutional heritage
The strongest track record in Luxembourg enterprise ICT integration. Deep, long-standing relationships with public administration, banking, and healthcare. For large and regulated organisations, this continuity matters.
🛡️ ISO 27001 certification and enterprise SLAs
Multiple SLA tiers with defined intervention times and availability targets. Combined with ISO 27001, this creates a procurement-friendly posture for regulated sectors.
🔷 Proximus Group alignment
Part of Proximus Group alongside Tango and the Belgian Proximus incumbent. For Luxembourg businesses with Belgian operations, the group alignment can simplify procurement and create operational synergies.
📚 Terms you can look up
Not sure what something on this page means? The pbx.lu glossary explains each in plain language.
🧩 Decision tree
Two honest recommendations based on business profile.
✅ Choose Proximus NXT if
- You are a medium-to-large enterprise with 50+ users
- You are a public sector or regulated organisation
- You have existing Cisco infrastructure you want to extend
- You want Teams Voice as a fully managed service
- You value the Telindus heritage and long-term institutional relationships
🔎 Other providers worth considering
If Proximus NXT is not quite the right fit, these are the logical next pages to check.
Same category · other Luxembourg operators
Different category · vendors and platforms
❓ Common questions
Is Proximus NXT the same as Telindus?
Yes. Telindus Luxembourg was rebranded as Proximus NXT in 2019 when Proximus Group merged Telindus and Tango into Proximus Luxembourg SA. The Telindus name no longer appears in product marketing, but many long-standing customers still use it. The same team and infrastructure continued under the Proximus NXT brand.
What is Business ONE from Proximus NXT?
Business ONE is a bundled SME package launched around 2025 and 2026. It combines internet connectivity, managed telephony, VPN, and cybersecurity in one contract. Three tiers are available: Start (internet and telephony), Smart (adds VPN and security), and Premium (1 Gb/s bandwidth with 4G backup). It is designed for businesses that want a single provider for all IT needs. Pricing is not published; contact Proximus NXT for a quote.
Can I keep my phone numbers if I switch away from Proximus NXT?
Yes. Number portability is regulated by the ILR (Institut Luxembourgeois de Régulation) in Luxembourg. You can port your existing Proximus NXT numbers to another licensed operator. If you use Cisco hardware, some reconfiguration may be needed. Telindus legacy customers with long-term contracts should check their renewal terms before initiating a switch.
Does Proximus NXT work with Microsoft Teams?
Yes. Proximus NXT offers Teams Voice, a cloud-hosted telephony product that integrates directly with Microsoft Teams using Direct Routing. Your Teams app becomes your phone. It is a managed service: Proximus NXT handles setup, configuration, and updates. You still need Microsoft 365 licenses with the Teams Phone add-on.
Is Proximus NXT suitable for a small business?
Proximus NXT's core products (Unified Collaborations, Teams Voice) target medium-to-large enterprises. Business ONE was launched specifically to address the SME gap. However, it still requires a formal consultation and quote, and the bundle approach creates a degree of ISP and vendor lock-in. Small businesses wanting quick setup and transparent pricing may find a better fit with independent Cloud PBX providers.
What is the relationship between Proximus NXT and Tango?
Both are brands of the same legal entity, Proximus Luxembourg SA. Proximus NXT serves medium-to-large enterprises and public sector. Tango serves residential and micro-business customers. They share network infrastructure but operate as separate commercial divisions with different sales teams and product catalogues.
📎 Explore next on pbx.lu
📦 Features
14+ feature deep-dives: call recording, analytics, AI transcription, mobile app, Microsoft Teams integration, and more.
💼 Use cases
Cloud PBX applied to retail, logistics, finance, public sector, and IT companies.
📍 Next steps
📅 Ready to explore Cloud PBX for your business?
Start with the provider comparisons or feature guides. If you want independent advice, a short consultation narrows the 18 providers down to what fits you.