Decision dominance: SCI TOCNET-G4 vehicular intercom system receives new networking capability from Persistent Systems
November 30, 2021

Firmware upgrade for Persistent Systems mobile ad hoc networking devices allows dismounted troops, headquarter staff, to seamlessly communicate with vehicle crews.

NEW YORK, N.Y.— Persistent Systems, LLC (“Persistent”) a leader in mobile ad hoc networking (MANET), announced today that its MANET solutions have undergone a firmware upgrade, enabling them to interface with SCI Technology’s TOCNET-G4 unified voice management system for tactical military vehicles.

With this new capability, troops moving in, out of, and around vehicles can use their handheld MPU5 MANET devices to seamlessly connect with vehicle crews via the TOCNET-G4 intercom system, even under the most chaotic battlefield conditions. The result is increased connectivity, improved situational awareness, and improved decision dominance during a military engagement.

“Before this upgrade, you had to deal with crackly audio and messy headset plug-ins, which was not ideal when you’re taking fire. Now everything is smooth, fast, and automatic,” said Nicholas Naioti, VP of Business Development at Persistent. “Anyone on Persistent’s Wave Relay® MANET can communicate on the TOCNET-G4, so now headquarters has a direct line to an individual vehicle driver.”

The TOCNET-G4 is connected to the Persistent Systems Wave Relay® MANET via the GVR5, a dual-band networking radio developed for tracked and wheeled vehicles in conjunction with General Dynamics Mission Systems. Through the GVR5, troops using Persistent’s handheld MPU5 devices can communicate with vehicular crews on the TOCNET-G4 system.

“Everything is ethernet-based,” said Ed Reber, director of the Army C3T business area at General Dynamics Mission Systems. “There is no need for extra cabling, which reduces cost and logistics requirements. With this capability, you can just ‘dial’ a specific crewman or connect with someone who is part of a force operating in a specific location.”

The TOCNET-G4 is currently on, or being tested with, 50-plus military platforms. These include the JLTV, GMV 1.1, Stryker, LAV, and NGCV MET-D.

“The ubiquity of SCI Technology’s TOCNET-G4 unified voice management system means that the firmware upgrade to Persistent’s MANET hardware will benefit a lot of users,” said Shaun Fischer, Director of Portfolio Management at SCI Technology.

About Persistent Systems, LLC

Headquartered in New York City since 2007, Persistent Systems, LLC is a global communications technology company that develops and manufactures a patented and secure Mobile Ad hoc Networking (MANET) system: Wave Relay®. Wave Relay® transmits and receives data, video, voice and other applications under the most difficult conditions. Their suite of products is utilized in Commercial, Military, Government, Industrial, Agriculture, Robotics, and Unmanned Systems markets. Please visit to learn more. Follow Persistent Systems on Twitter to get updates on the latest developments @pswaverelay.

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