What Are modulus vPBX, 3CX, and FreePBX?
Although all three belong to the PBX category, they are designed for different business needs and user profiles.
Cloud PBX vs On-Premise PBX: What's the Difference?
Modern business phone systems generally fall into two categories: Cloud PBX and On-Premise PBX. Cloud PBX solutions are hosted in secure data centers and managed by the provider, while on-premise PBX systems are installed and maintained within the company's own infrastructure. Businesses choosing a cloud PBX benefit from faster deployment, lower maintenance requirements, and greater scalability.
modulus vPBX
modulus vPBX is the proprietary cloud PBX platform developed by modulus.
It is a fully managed solution designed for businesses that want a modern phone system without dealing with installations, maintenance, upgrades, or licensing management.
It is ideal for:
3CX
3CX is one of the most popular commercial PBX platforms worldwide.
It offers advanced capabilities such as:
modulus is the only certified 3CX telecommunications provider in Greece, offering complete implementation and technical support.
FreePBX
FreePBX is an open-source PBX platform built on Asterisk.
It offers extensive customization capabilities and is primarily designed for:
In exchange for its flexibility, it requires a higher level of technical expertise and administration.
modulus vPBX vs 3CX vs FreePBX Comparison
| Feature |
modulus vPBX |
3CX (via modulus) |
FreePBX (via modulus) |
| Type |
Proprietary Cloud PBX |
Commercial (3CX Ltd) |
Open Source |
| Ideal For |
Simple deployment with minimal technical complexity |
Enterprise features, Microsoft Teams, video conferencing |
Technical teams requiring full customization |
| Deployment |
Immediate, fully managed (1–2 days) |
1–3 days (fully managed by modulus) |
Depends on configuration requirements |
| Licensing Cost |
Included in subscription |
Separate 3CX licensing |
Free (open-source) |
| Technical Complexity |
Low |
Medium |
High |
| CRM Integration |
Yes |
Yes (extensive) |
Yes (requires custom configuration) |
| modulus Support |
Full managed service |
Full support (Gold Partner) |
Available
|
When Should You Choose modulus vPBX?
modulus vPBX is the ideal choice for businesses looking for simplicity, speed, and fully managed service from an experienced provider.
It is the right solution when:
You Need Fast Deployment
The platform can be implemented within 1 - 2 business days without purchasing additional hardware.
You Don't Want to Manage Technical Infrastructure
The modulus team handles:
-
Installation
-
Maintenance
-
Upgrades
-
Monitoring
-
Technical Support
You Want Predictable Costs
Licensing is already included in the subscription, with no additional licensing fees.
You Don't Have an Internal IT Team
The platform is designed to deliver all the core functionality of a modern PBX system without unnecessary complexity.
When Should You Choose 3CX?
3CX is an excellent option for businesses that require advanced communication and collaboration capabilities.
You Need Microsoft Teams Telephony
3CX supports advanced Microsoft Teams integration scenarios.
You Manage Customer Service or Sales Teams
Its call center features, reporting tools, and queue management capabilities make it particularly popular among structured support and sales departments.
You Need Advanced Features
3CX combines:
-
Business Telephony
-
Video Conferencing
-
Live Chat
-
Presence Management
-
Contact Center Features
into a single platform.
You Want Certified Support
modulus provides complete implementation and support as the only certified 3CX telecommunications provider in Greece.
When Should You Choose FreePBX?
FreePBX is primarily designed for organizations with technical expertise that require complete control over their communications environment.
You Need Full Customization
FreePBX supports:
You Have an Internal Technical Team
The platform requires significantly more technical knowledge than managed PBX solutions.
You Prefer Open-Source Technology
Many organizations choose FreePBX because of the flexibility and control it offers.
You Have Specialized Telecommunications Requirements
For complex communication environments, FreePBX remains one of the most flexible PBX solutions available.
Why Choose modulus Regardless of the Platform?
Choosing the right platform matters. Choosing the right partner matters just as much.
modulus is one of the few providers in Greece capable of fully supporting all three major PBX platforms.
Customers benefit from:
-
19 years of telecommunications experience
-
14,000+ business customers
-
Cloud-native infrastructure
-
SIP Trunk services
-
Microsoft Teams integrations
-
Number Portability
-
Expert Technical Support
Rather than promoting a single solution, modulus evaluates each business individually and recommends the PBX platform that best matches its requirements.
There is no one-size-fits-all PBX solution. The right choice depends on your specific business needs:
-
Choose modulus vPBX if you want simplicity, speed, and fully managed cloud telephony.
-
Choose 3CX if you require advanced features, Microsoft Teams integration, and enterprise-grade functionality.
-
Choose FreePBX if you have a technical team and require complete customization.
Because modulus offers all three solutions, businesses can confidently select the PBX platform that truly fits their communication strategy.
