Interoperable LMR and LTE.
We wrote the playbook.
LMR and LTE.
Working together like never before.
Mission critical teams can't afford limits. That's why our network is designed to eliminate them. As the industry leader in LMR-to-LTE interoperability, we empower teams to extend their private radio systems for thousands of miles across geographies and jurisdictions, connecting agencies and organizations like never before.
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Software Solutions
Catalyst IntelliLink™, a Windows-based gateway solution, enables seamless communication among disparate LMR radio systems over CriticalLinc™, our mission critical LTE network. Teams can extend their push-to-talk networks while utilizing Linc-native dispatch solutions (console and mobile), providing centralized command and control over their network.
Portable Radios
L3Harris™ portable radios with LMR and LTE are as innovative as they are rugged-featuring industry-leading, loud audio, compact design and controls that work even while wearing gloves. The XL Extreme™ 400P, now certified for the CriticalLinc network, is NFPA-compliant and specially designed for extreme heat/conditions.
Installed Mobiles
Designed for the unique demands of public safety, transportation and utilities, L3Harris™ installed mobile radios seamlessly bridge LMR and LTE. These advanced radios deliver audio excellence through an ergonomic digital microphone and advanced noise cancellation technology, enabling you to be heard in noisy environments.
40GB for $40/month
with a new 2-year agreement.
Get unlimited voice, messaging and 40GB of wireless data for just $40 per month with a 2-year service agreement. Terms apply.
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$36/mo Data Only Plan
Connect a router, hotspot or tablet with 40 GB of LTE data monthly. Terms apply.
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Who We Are
Beyond reliable.
Southern Linc, a subsidiary of Southern Company, has provided mission critical wireless communication services for utilities, government and business for more than 30 years. Our beyond reliable CriticalLinc™ network provides 122,000+ square miles of secure LTE coverage with redundant signal paths, backup power and satellite backhaul.
Get to Know UsWhy Us
Ready when duty calls.
CriticalLinc is more than a mission critical LTE network. It's a beyond reliable network of people and technology built to support you. From rugged hardware to expert support, we're dedicated to supporting your mission-delivering products and services that enable your team to communicate seamlessly in the toughest conditions.
Mission Critical PTT
Southern Linc is the first U.S. carrier to offer public-sector grade PTT on a public LTE network, all on a single app that enables private two-way, custom group calls and more.
Explore MCPTT
LTE Voice
Built on a redundant LTE infrastructure, CriticalLinc offers regional mission critical LTE coverage with seamless roaming coast-to-coast across major carriers.
Explore LTE Voice
Mobile Data Services
Over-the-air encryption, geo-redundancy and hardened security protocols-our network supports everything from fleet management to asset monitoring.
Explore Data Services
Interoperability
CriticalLinc enables teams to extend their private LMR radio networks across geographies and jurisdictions, enabling interagency collaboration like never before.
Explore InteroperabilityContact Us
Let's connect to discuss how our network can help support your mission.
or call us at 1-800-818-LINC (5462)