📞 Wildix: browser-native UCaaS sold through partners
A European UCaaS vendor with a cloud phone system built natively on WebRTC, so users make and receive calls from any browser without a VPN or installed client. Sold only through certified reseller partners, with optional bundled SIP trunks via CLASSOUND.
⏱ 9 min read · 🌍 PBX software vendor · 📅 Updated April 2026 · 🔗 wildix.com
🏢 Who Wildix is
Wildix is a European UCaaS vendor founded in 2005. The company is registered in Estonia, with research and development teams based in Italy and Ukraine. Its core product, Collaboration, is a cloud phone system built natively on WebRTC: voice, video, messaging, and presence all run in a standard web browser, without a separate softphone client or VPN. Wildix is sold entirely through certified reseller partners. There is no direct sales channel, and pricing is set by each partner rather than published on the Wildix website.
In 2024, Wildix was listed as a Niche Player in the Gartner Magic Quadrant for UCaaS, the first European-headquartered vendor to appear in that ranking. In Luxembourg, Wildix is deployed through its reseller network rather than directly. Phone numbers and SIP routing for Luxembourg businesses come from a separate SIP trunk provider, either through Wildix's own CLASSOUND add-on or through a local operator. Mixvoip is one of the certified Wildix SIP trunk providers for Luxembourg and the Greater Region, which means the relationship between the two products is a factual integration rather than a hidden funnel.
📦 What Wildix offers
Wildix sells a UCaaS platform, a set of optional add-ons, and a reseller-led delivery model. The main components:
🌐 Browser-native Collaboration platform
Collaboration runs in any modern browser using WebRTC. Users log in, make calls, join video meetings, send messages, and check presence without installing a softphone, configuring a VPN, or opening firewall ports for SIP. A mobile app (Collaboration 7) is available for iOS and Android. This reduces the IT overhead of rolling out a phone system to remote and hybrid teams.
💶 Partner-set pricing across three tiers
Wildix has three plan tiers: Essential (basic PBX), Business (collaboration apps and CRM integrations), and Premium (AI features, contact centre, advanced analytics). The vendor does not publish prices. Independent sources place typical pricing between around 10 and 100 USD per user per month, but the actual number in Luxembourg depends on the reseller, the contract length (monthly, annual, or multi-year), and whether CLASSOUND telephony is bundled.
🔌 CLASSOUND telephony or bring-your-own SIP trunk
CLASSOUND is Wildix's optional SIP trunk service with bundled call minutes. With CLASSOUND the numbers, minutes, and PBX platform all sit within the Wildix stack. Without it, customers add a separate SIP trunk from a local operator. Mixvoip is a certified Wildix SIP trunk provider and supplies Luxembourg, Belgian, German, and French numbers to Wildix deployments that prefer to separate the two.
🤖 CRM integrations, Kite, and Wilma AI
Business and Premium tiers include 250+ CRM and app integrations (Salesforce, HubSpot, Zoho, Microsoft Teams, and others), Kite (a website chat widget that connects visitors to an agent via WebRTC), and x-bees (a sales acceleration product). Premium adds Wilma AI: voicebot automation, meeting transcription, call summaries, and real-time conversation suggestions for agents.
⚖️ Quick compare with two PBX rivals
Wildix is a UCaaS product sold through partners. This page compares it against two other products a Luxembourg business might shortlist alongside it.
🟣 Wildix
Cloud UCaaS via partners · this page
You are here
Deployment: managed cloud only
Licensing: monthly, per user (partner-set)
Sold via: Wildix partners only
SIP trunk: CLASSOUND or bring your own
Teams integration: native WebRTC client
Typical size: 20 to 500 users
💻 3CX
PBX software
🔗 3cx.com
Deployment: self-hosted or 3CX-hosted
Licensing: annual, per simultaneous call
Sold via: IT partners and MSPs
SIP trunk: bring your own
Teams integration: via connector
Typical size: 10 to 500 users
Comparison reflects public information. Sources linked from each provider page. Not a ranking.
👥 Typical client profiles
Wildix is built for sales-oriented organisations and tech-forward SMEs. Four common profiles:
🎯 The sales-driven commercial SME
A company of 30 to 300 employees with a sales team that spends most of its day on the phone and in a CRM. Wildix's Kite website widget, CRM connectors, and Wilma AI conversation tools are built for this use case, more than for standard office telephony.
💻 The browser-first remote team
A distributed or hybrid workforce that wants a phone system without hardware provisioning, VPN setup, or dedicated client installation. Collaboration running in any browser on any device is the core appeal here, and onboarding new employees reduces to creating an account.
🛒 The Microsoft 365 or Salesforce shop
A business where work already revolves around Microsoft Teams, Salesforce, HubSpot, or another major SaaS platform. Wildix's 250+ integrations mean contact data, call logs, and conversation summaries flow back into the system of record without custom development.
🤖 The sales team adopting AI-assisted conversations
A sales or customer-facing team that wants voicebot automation, live call transcription, meeting summaries, and real-time suggestions for agents. Wilma AI on the Premium tier is built for this, and pulls Wildix onto the shortlist for buyers who would otherwise stay with their existing PBX.
🎯 Where Wildix stands apart
Three positioning points worth weighing before choosing Wildix over a local managed Cloud PBX.
🌐 Browser-native architecture
Most Cloud PBX products still expect a softphone client, a VPN, or a desk phone to function reliably. Wildix is built on WebRTC end to end, so the phone system is a browser tab. For distributed teams and for businesses that dislike managing desktop software, this is a genuine architectural difference rather than a marketing point.
🛒 Sales and CRM focus
Wildix's product roadmap leans toward sales use cases: Kite for inbound leads, x-bees for sales acceleration, Wilma AI for conversation intelligence. Organisations whose phone calls are primarily internal or support-oriented may not use these features, and may be paying for capability they do not need.
☁️ AWS single-tenant hosting, not Luxembourg data centres
Each Wildix customer runs on a dedicated single-tenant AWS instance. The isolation model is stronger than most multi-tenant Cloud PBX platforms. The trade-off is that Wildix infrastructure runs on AWS, not in Luxembourg data centres, and Wildix does not publish the specific AWS region used for Luxembourg-area deployments. Organisations in regulated industries (banking, insurance, public sector) with Luxembourg or EU data residency requirements should request written confirmation of data region from their Wildix reseller before committing.
📚 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 Wildix if
- Your business is sales-driven and a CRM is already the daily cockpit
- You want a phone system that runs in a browser, with no client installation or VPN
- AI conversation tools (voicebot, transcription, live suggestions) are a real part of your workflow
- You are comfortable working through a reseller partner for pricing, setup, and support
🟡 Look elsewhere if
- You need published pricing before talking to sales
- Luxembourg or EU data residency is a hard requirement and AWS single-tenant is not enough
- You want a single provider for numbers, PBX, and support on one Luxembourg invoice
- Your telephony needs are straightforward and the AI and CRM features would go unused
🔎 Other providers worth considering
If Wildix is not quite the right fit, these are the logical next pages to check.
Same category · other PBX products and UC platforms
☁️ Voxbi
Managed Cloud PBX from Mixvoip, published pricing, Luxembourg-hosted
Different category · Luxembourg operators and SIP trunks
❓ Common questions
Does Wildix work without any installation?
Yes, for voice and video calls. The Collaboration app runs in any modern browser using WebRTC. No client installation, no VPN, and no firewall configuration is required. A mobile app (Collaboration 7) is also available for iOS and Android.
Does Wildix include phone numbers for Luxembourg?
Not by default. Wildix is a PBX platform, not a telecom operator. Luxembourg phone numbers come either from the CLASSOUND add-on (Wildix's own SIP trunk service) or from a separate Luxembourg operator. Mixvoip is a certified Wildix SIP trunk provider and can supply Luxembourg and Greater Region numbers.
Can I buy Wildix directly?
No. Wildix is sold exclusively through certified reseller partners. There is no direct sales channel and no self-service signup. The customer's contract, pricing, and day-to-day support relationship is with the reseller, not with Wildix directly.
What is Wilma AI?
Wilma is Wildix's AI feature set, available on the Premium plan. It includes voicebot automation for inbound call handling, real-time conversation suggestions for agents, meeting transcription, and call summaries. It is primarily designed for sales and customer-facing teams.
Where is Wildix data hosted?
Wildix runs on dedicated single-tenant AWS instances. Data is hosted on Amazon Web Services infrastructure, not in Luxembourg data centres. The specific AWS region for a given deployment depends on the reseller configuration. Organisations with Luxembourg or EU data residency requirements should confirm the region in writing with their reseller before committing.
What is a single-tenant deployment?
In a single-tenant deployment, each customer has a dedicated software instance with its own database and resources, rather than sharing one platform with many other customers. This adds isolation between customers at the cost of more infrastructure per deployment. Wildix uses this model on AWS.
Is Wildix recognised by Gartner?
Yes. In 2024, Wildix was listed as a Niche Player in the Gartner Magic Quadrant for UCaaS. It was the first European-headquartered vendor to appear in that category.
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