Our STACK™
Overlay
Intelligent capabilities that enable performance, security, and communication across your network.
Kick Every Connection Up a Notch
The Overlay layer adds intelligence to connectivity — controlling how traffic flows, how applications perform, and how security is enforced across environments.
Cloud & Communication
UCaas
UCaaS
Integrated calling, messaging, and collaboration
Contact Center
Contact Center
Customer engagement and call routing
VoIP Calling
VoIP Calling
Cloud-based voice delivery
Teams Calling
Teams Calling
Microsoft Teams voice enablement
SIP Trunking
SIP Trunking
Legacy-to-cloud voice connectivity
Number Reputation Management
Number Reputation Management
Trusted outbound caller identity
Network Control & Security
SD-WAN
SD-WAN
Application-aware routing and failover
SASE
SASE
Consistent security policy enforcement across users and locations
Firewall and Threat Protection
Firewall and Threat Protection
Continuous enforcement at the edge
Performance Optimization
Performance Optimization
Latency, jitter, and packet loss reduction
LAN and WiFi
LAN and WiFi
Local access and user experience
Edge Power and Device Control
Edge Power and Device Control
Remote visibility and remediation
Built for Today’s Business Needs
NHC helps organizations layer modern communication, security, and performance technologies over the connectivity they already depend on.
Experience deploying edge technologies across distributed environments
Strong ecosystem of leading technology providers
Proven architectures for performance, security, and communication enablement
Designed to integrate across diverse connectivity environments
See Where Overlay Makes an Impact
Need Consistent Security Across Locations?
Disconnected tools create gaps in protection and policy enforcement.
Explore Secure Network
Struggling with Cloud or SaaS Performance?
Inefficient routing impacts application experience.
Explore Cloud Performance
Supporting a Distributed Workforce?
Communication depends on consistent performance and access.
Explore Modern Workforce
Why NHC?
Many organizations deploy Overlay technologies but struggle to achieve consistent outcomes. NHC integrates those capabilities into a broader architecture aligned to business needs. With NHC, Overlay provides:
- Consistent policy enforcement across environments
- Connected performance, security, and communication capabilities
- A stronger foundation for user experience and operational control
Overlay enables capability — NHC ensures those capabilities perform.
"
We sell a significant amount of UCaaS, and our deployments with NHC have consistently been smoother, faster, and more accurate than with other providers we have worked with. After installation, our customers also appreciate how easy and intuitive the newVoice portal is to navigate. And whenever assistance is needed, NHC’s team is always just a phone call away.”
Glenn Mack
CEO of Level Technologies
Our STACK™ Vendors







…and many more
The Complete Picture
Overlay provides control — but the Managed layer ensures those capabilities deliver results.
Enable a Smarter STACK™
The Overlay layer builds on Network to add intelligence, control, and consistency across the environment.
Network connects
Overlay enables
Managed enables outcomes
Add Intelligence and Control to Your Network
Enable consistent performance, security, and user experience across every connection.