Meet Class4 Fusion
The Leading-Edge VoIP Switch Platform with High CPS, True High Availability, and Built-In Redundancy — All in One.
Only $0.0003/min or $0.50/port — Fully Hosted Solution.
Power Your Telecom Network, Effortlessly
Deliver high-volume, high-performance voice traffic with a fully featured Class 4 softswitch—optimized for efficiency and scalability.
Smart, Scalable, and Profitable Telecom
Denovolab lets you manage massive traffic, reduce costs, and stay compliant—all from a single, intuitive platform.
Build, Scale, and Thrive in Telecom
From 500 ports to hundreds of thousands, Denovolab makes running your VoIP network simple, fast, and economical.
The Telecom Switch Designed for
Visionaries
Global-grade technology, full-featured routing and billing, and ease-of-use—all in one platform.
Your Network, Your Control, Maximum Performance
Run your VoIP network with full flexibility, zero CPS limits, and features that make scaling effortless.

Free to use Class4 Fusion Community Edition

From Zero to Running in 60 Seconds — Simple guide to install and configure DNL Community Edition on your own server.
yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm

dnf module disable postgresql -y

yum -y install postgresql15-server postgresql15-contrib prefix_15 ip4r_15

yum install -y epel-release

yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm

dnf module disable postgresql -y

dnf config-manager --set-enabled powertools

yum install -y python3 python3-pip python3-wheel

curl -sL https://rpm.nodesource.com/setup_18.x | sudo -E bash -

yum -y install nodejs

yum install -y http://repo.denovolab.com/rocky/8/noarch/denovolab-rocky-1-1.noarch.rpm

yum -y install dnl-database

yum -y install denovolabv6-software

yum -y install dnl_live_monitor

systemctl restart nginx

systemctl restart dnl_web_helper
# Clone the repository
git clone https://github.com/denovolab/class4-fusion.git
cd class4-fusion

# Install dependencies
npm install

# Install Python requirements
pip3 install -r requirements.txt

# Setup PostgreSQL database
sudo -u postgres psql -c "CREATE DATABASE dnl_database;"
sudo -u postgres psql -c "CREATE USER dnl_user WITH PASSWORD 'your_password';"
sudo -u postgres psql -c "GRANT ALL PRIVILEGES ON DATABASE dnl_database TO dnl_user;"

# Run database migrations
python3 manage.py migrate

# Build frontend assets
npm run build

# Start the application
npm start
# Launch EC2 instance (Rocky Linux 8 or RHEL 8)
# Connect to your instance via SSH

# Update system packages
sudo yum update -y

# Install PostgreSQL repository
sudo yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm

# Install required packages
sudo dnf module disable postgresql -y
sudo yum -y install postgresql15-server postgresql15-contrib

# Install DNL packages
sudo yum install -y http://repo.denovolab.com/rocky/8/noarch/denovolab-rocky-1-1.noarch.rpm
sudo yum -y install dnl-database denovolabv6-software dnl_live_monitor

# Configure security group
# Open ports 80 (HTTP) and 443 (HTTPS) in AWS Console

# Start services
sudo systemctl enable --now nginx
sudo systemctl enable --now dnl_web_helper
# Create a new VM instance
gcloud compute instances create dnl-server \
--image-family=rocky-linux-8 \
--image-project=rocky-linux-cloud \
--machine-type=n1-standard-2 \
--zone=us-central1-a

# SSH into the instance
gcloud compute ssh dnl-server --zone=us-central1-a

# Install PostgreSQL repository
sudo yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm

# Install dependencies
sudo dnf module disable postgresql -y
sudo yum -y install postgresql15-server postgresql15-contrib python3 nodejs

# Install DNL software
sudo yum install -y http://repo.denovolab.com/rocky/8/noarch/denovolab-rocky-1-1.noarch.rpm
sudo yum -y install dnl-database denovolabv6-software dnl_live_monitor

# Configure firewall rules
gcloud compute firewall-rules create allow-http --allow tcp:80
gcloud compute firewall-rules create allow-https --allow tcp:443

# Start services
sudo systemctl start nginx dnl_web_helper
# Create a new VM in Azure Portal
# Select Rocky Linux 8 or RHEL 8 image

# Connect via SSH
ssh azureuser@your-vm-ip

# Update system
sudo yum update -y

# Install PostgreSQL repository
sudo yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-redhat-repo-latest.noarch.rpm

# Install required packages
sudo dnf module disable postgresql -y
sudo yum -y install postgresql15-server postgresql15-contrib
sudo yum install -y epel-release python3 python3-pip nodejs

# Install DNL packages
sudo yum install -y http://repo.denovolab.com/rocky/8/noarch/denovolab-rocky-1-1.noarch.rpm
sudo yum -y install dnl-database denovolabv6-software dnl_live_monitor

# Configure NSG
# Allow inbound traffic on ports 80 and 443

# Start services
sudo systemctl enable --now nginx
sudo systemctl enable --now dnl_web_helper

Our Edge

Built from scratch, not just a skin on top of open-source software. Delivering performance that competitors can’t match.

High Density

DNL can handle far more CPS on the same hardware, helping you save significantly on hardware costs.

High Performance

With no artificial CPS limits, DNL lets you terminate as much traffic as your CPS resources can handle.

High Flexibility

Fully configurable, DNL lets you route, block, and limit traffic exactly the way you need.

High Scalability

DNL supports horizontal scaling: whenever you need more ports, simply add another switching node.

Our Plans

We believe we have created the most efficient SaaS landing page for your users. Landing page with features that will convince you to use it for your SaaS business.
Hosted
On-Premise

Community Edition

$0/month
$0/yearly
  • Unlimited CPS
  • 500 Ports

Per Minute

$0.0003/min
Minimum $500/mon
$0.0003/min
Minimum $500/mon
  • No Contract
  • 24/7 online support
  • Unlimited CPS
  • Unlimited Ports

Variable Rate

$0.45-0.25
Minimum $1000/mon/port
$0.45-0.25 Minimum $1000/mon/port
  • No Contract
  • 24/7 online support
  • Unlimited CPS
  • Unlimited Ports
asd
Community Edition
Commercial Edition
Port limit
500
Unlimited
CPS Limit
Unlimited
Unlimited
LRN Daily Data Feed
Youmail Daily Data Feed
Lerg Daily Data Feed
DNC Daily Data Feed
DNO Daily Data Feed
Google Cloud Integration
Support
Google group
Live support

Everything Telecom. One Box.

We’ve built one of the most efficient Class 4 softswitches for your traffic. Our all-in-one platform — with routing, switching, and billing — is designed to make managing your VoIP business simple and powerful.

Routing

Intelligent call routing for maximum efficiency and quality.

Switch

High-performance switching to handle massive call volumes.

Billing

Accurate, real-time billing for your VoIP business.

Fraud Detection

Protect your network with advanced fraud prevention tools.

Regulatory Compliance

Stay fully compliant with FCC, ITU, and local regulations.

Full Report

Detailed analytics and reports to monitor every aspect of your traffic.

10x Faster Routing

Slash PDD and boost ASR for maximum efficiency

100K+ Concurrent Calls per Server

Lower CAPEX, reduce maintenance, scale with ease

24/7 Expert Support

Always available when you need us most

FROM THE ARCHITECT

From Code to Global Impact: How DeNoVoLab Empowers Telecom Operators

It’s no secret that building a Class 4 softswitch is one of the most challenging feats in telecom technology. For those unfamiliar with the world of high-volume traffic routing, it can feel utterly daunting—requiring years of coding, painstaking troubleshooting, and relentless refinement of even the tiniest technical details. I founded DeNoVoLab out of a desire to change that. I wanted to make it possible for telecom operators to handle massive volumes of traffic efficiently, intelligently, and economically, without forcing them to invest heavily in expensive hardware or complex software.

What began as my personal vision has grown into a global team of talented developers, engineers, and visionaries—all united by the mission to push the boundaries of what a softswitch can achieve. Together, we have built a platform that is not only reliable and powerful but also extremely optimized: today, many of our customers run over 100,000 ports of traffic on our platform, and even a handful of modest Intel-based servers can handle tens of thousands of concurrent calls. We obsess over every line of code, every process, every feature—constantly innovating to maximize performance, reduce costs, and make high-end telecom technology accessible to everyone.

At DeNoVoLab, we don’t just provide software; we empower carriers. We give them the freedom to scale, the confidence to grow, and the tools to thrive in one of the most demanding industries in the world. Every innovation we deliver, every optimization we make, is driven by the belief that complex technology shouldn’t be a barrier—it should be an opportunity. From my first line of code to the robust global platform we run today, our journey is fueled by passion, relentless curiosity, and the desire to make the impossible achievable for our customers.

Get Help Anytime and Any Way

Yes! We can install it for you for just $100.

Yes! Installation includes free live training and ongoing support from our team.

No problem. Post your questions in our Google Group or submit a ticket—we’ll respond within 24 hours.

Register in our Jira portal and submit your feature requests directly.

Yes! A few backend changes remove the 500-port limit, unlocking full capacity.

Register, select the number of ports you need, and upload.

WHY CHOOSE US

Build a Telecom Network Your Customers Will Love and Profit From

Our Class 4 softswitch maximizes your profitability while being incredibly easy to use. It comes packed with every feature you could need, giving you full control and flexibility to grow your telecom business.

High Performance

No CPS limitations. Scale your traffic as much as you need without compromise.

Easy to Use

Intuitive, user-friendly interface makes managing your network simple.

Fully Featured

Complete capabilities including routing, billing, switching, DID management, and more.

Flexible

Pay-as-you-go pricing allows you to control costs and scale at your pace.

Regulatory Compliant

Supports STIR/SHAKEN, DNO/DNC blocking, and other compliance features.

Fast Routing

Our in-memory data model ensures ultra-low PDD, delivering rapid call termination every time.

Many Ways to Get Help!

Help & Support

Get instant assistance from our expert team — we're here to keep your network running smoothly.

http://t.me/denovolab

Feature Request

Have an idea? Suggest new features and help us shape the future of Denovolab.

1 (610) 500-6740

Sales Talk

Connect with our sales team to explore tailored solutions and unbeatable pricing for your business.

support@denovolab.com

Create Your VoIP Network Now with Our Community Edition

Get started today and build a fault-tolerant, high-performance, future-proof VoIP network for your telecom business with our easy-to-use Community Edition. Enjoy all the features of the full version with up to 500 ports and no CPS limitations—completely free forever. Launch, scale, and manage your network with confidence, all without compromise.