In the beginning the walkie-talkie device was practically ignored by the world at large- then came the second world war in 1939. The military saw this technology as highly valuable technology and for good reason. Communication is vital and for instant and researched actions to take place in real-time this device was necessary.
The company Hings worked for loaned him to the Department of Defense and the National Research Council in Ottawa. They planned to re-invent his invention specifically for use in battle situations.
It would take Hings a few years of research and development but in that time he had created a large variety of portable walkie talkie radios for the Army. Model C-58 pack set (yea not exactly portable like a cell phone, more like a portable tv tower!) was a great success and tremendously helpful in assisting soldiers. This design was both powerful and productive. There were tens of thousands of these units being built and deployed overseas. He continued to build variants of the original for use in vehicle and tanks (mounted versions).
These walkie talkies model c-58 had many new innovative features and hardware such as antennas, power supplies (especially useful in battles!), voice scrambling technologies for privacy and to avoid any eavesdropping, and even a special filter designed to eliminate the background sounds of battles happening while using the radio. These all made for a very clear transmission, even through walls of noise and loud sounds, explosions, etc...