📞 Proximus NXT is the enterprise ICT and telephony division of Proximus Luxembourg SA, created in 2019 from the merger of Telindus (40+ years as Luxembourg's leading ICT integrator) and Tango. It serves medium-to-large businesses and public administrations with Cisco-powered Unified Communications, Microsoft Teams Voice, and the Business ONE bundle for SMEs. Pricing is not published publicly; a formal consultation is required.
Best for: Medium-to-large enterprises, public sector organisations, and businesses already in the Cisco or Microsoft Teams ecosystem.
This page compares Proximus NXT with Voxbi across setup, pricing, features, and fit. Use it to decide which solution suits your business.
At a Glance
Criteria | Voxbi | Proximus NXT |
Pricing | Published | Quote only |
Setup speed | Days | Weeks |
Target size | 1-200 users | 50-2,000+ users |
Cisco required | No | Yes (UC product) |
Greater Region numbers | Yes | Limited |
Call analytics | Yes (included) | Not featured |
ISP independence | Yes | Bundled option |
Detailed Comparison
⚙️ Setup and Onboarding
Voxbi deploys in days. No hardware assessment, no enterprise sales cycle. You choose your plan, port your numbers, and start making calls.
Proximus NXT's enterprise UC product involves a Cisco assessment, hardware selection (IP phones, video systems, headsets), and a managed onboarding process. Business ONE for SMEs is faster but still requires a consultation with an expert and a formal quote. Teams Voice is deployed end-to-end by Proximus NXT, which suits large organisations that want a managed rollout.
Choose Voxbi if you need to be operational quickly without a complex procurement process. Choose Proximus NXT if you want a fully managed deployment and have an existing Cisco or MS Teams infrastructure to integrate.
💶 Pricing and Contracts
Voxbi publishes its prices. You know the monthly cost per user before you speak to anyone.
Proximus NXT does not publish telephony prices for any product, including Business ONE. You must contact their team and receive a formal quote. Mobile plans (Go Mobile NXT) show some data allowance details but no firm prices. A Pay As You Use mobile option is available with no commitment; device financing runs 24 or 36 months.
Voxbi | Proximus NXT | |
Public pricing | Yes | No |
Min. commitment | Flexible | Not disclosed |
Mobile included | Via Mixvoip | Via Tango (bundle) |
Choose Voxbi if pricing transparency matters. Choose Proximus NXT if your organisation prefers negotiated enterprise contracts.
📋 Features and Products
Proximus NXT offers three telephony products. Unified Collaborations is the Cisco-powered enterprise UC suite (Webex Meetings, Webex Teams, softphone, video, presence, compliance recording). Teams Voice is cloud-hosted Microsoft Teams telephony, managed end-to-end. Business ONE is a newer SME bundle (Start, Smart, Premium packages) combining internet, managed telephony, VPN, and security.
Voxbi covers the core telephony feature set: IVR, call queues, call recording, mobile app, fixed-mobile convergence, and call analytics dashboards. It is ISP-independent, meaning it works on any internet connection.
Key gaps in Proximus NXT: call analytics are not prominently featured, Greater Region numbers (BE, DE, FR) are not prominently advertised, and compliance recording is a separate paid product.
🌍 Coverage and Geography
Proximus NXT is Luxembourg-focused. Its fixed telephony and UC products are built for Luxembourg businesses. Mobile (Go Mobile NXT) includes Europe and USA in its plans.
Voxbi supports Luxembourg, Belgium, Germany, and France from a single platform. Businesses in the Greater Region (cross-border operations, remote staff in DE/FR/BE) can use local numbers from all four countries on one system.
Choose Voxbi if you operate across borders or need phone numbers in multiple countries. Choose Proximus NXT if your operations are concentrated in Luxembourg and you want a single managed provider for connectivity and telephony.
🏢 Company and Support
Proximus Luxembourg SA has 750+ employees across three brands: Proximus NXT (enterprise), Tango (residential and micro-business), and Codit (Azure and AI integration). The Telindus heritage gives Proximus NXT deep institutional relationships in Luxembourg, particularly in public administration, banking, and healthcare. Multiple SLA tiers are available with defined intervention times and availability targets. The company holds ISO 27001 certification for information security management.
Voxbi is operated by Mixvoip, a Luxembourg-based Cloud PBX provider focused on SMEs and businesses up to 200 users. Support is provided directly, without the enterprise overhead.
Voxbi | Proximus NXT | |
Certified ISO 27001 | Check voxbi.com | Yes |
Luxembourg-based | Yes | Yes |
SLA options | Yes | Multiple tiers |
Frequently Asked 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 2025/2026. 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 Voxbi or any other 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. This means 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. Voxbi can also integrate with Teams; check voxbi.com for current integration details.
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. If you are a small business wanting a quick setup, transparent pricing, and no long-term infrastructure commitment, Voxbi is likely a better starting point.
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External references: Proximus NXT telecoms products | Business ONE packages
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