Enhanced Communications for the Transport Industry
In the transportation sector, every second counts. Whether you’re running a national railway, a metropolitan transit network, or a large logistics operation, uninterrupted and secure communications are essential. REDCOM delivers the technology to make that possible.
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Railway, Transit & Transportation Communications Solutions
From coordinating trains and buses to managing freight logistics and public safety, transportation systems span wide geographies, multiple technologies, and thousands of moving parts. For more than 40 years, REDCOM has powered communications for the U.S. military and public safety organizations. We are excited to extend the same solution set for the transportation industry.
Why is REDCOM Sigma a Great Comms Platform for the Transportation Industry?
- Unmatched Interoperability
- Quick Adoption & Deployment
- Easy to Learn
- Affordable Licensing Model
- Future-Proof Scalability

How REDCOM Sigma Enhances Transportation Operations
Railway & Transit Control Centers
Enhance communications between operators, conductors, maintenance, security staff, and office personnel.
Freight & Logistics Operations
Coordinate trains, trucks, and intermodal transportation hubs securely and in real time.
Integrated Transit Systems
Link rail, bus, and ferry operations under one secure communications platform.
REDCOM Sigma Keeps People, Cargo, and Operations Connected
Interoperable Comms, Regardless of Endpoint
From the P25 radios commonly used by public safety agencies to cell phones, desk phones, and other endpoints, Sigma can connect them all. Integrating REDCOM Sigma into your organization’s communication plan enables unified communications even when outside agencies use disparate radios and other communications tech.


Crossband Radio Networks With Sigma XRI
The REDCOM Sigma XRI is a Small-Form-Factor Command and Control (C2) platform featuring voice, video, chat, and radio interoperability, along with an integrated console. It is more than just a basic radio gateway. Users can bridge radio nets, satellite communications, LTE networks, and wired or wireless IP in any form.
Communicate Across Agencies
Instantly link the disparate radios, softphones, and other communication endpoints that different organizations use.
IP-Based PTT Voice Integration
REDCOM Sigma XRI enables seamless interoperability with unicast and multicast RTP-capable radios and PTT apps.
Clear Signals Across Tracks, Roads, and Routes
Control and Organize Comms From a Single Device
Transport operations require a high level of communication and coordination. REDCOM Sigma® C2 Console is a powerful app that provides operators with a single pane of glass to monitor and control all communications, including both SIP and radio endpoints.
Operators can create persistent and ad-hoc channels, keeping comms organized. New users can be trained on Sigma in hours or days, not weeks — perfect for transportation organizations looking to quickly bring employees up to speed.
