PTT (Push-to-Talk) over Cellular (PoC) is a communication technology that enables two-way radio-like functionality over mobile cellular networks. It allows users to instantly connect with individuals or groups by pressing a button, similar to traditional walkie-talkies, but using cellular infrastructure. PoC offers wide coverage, as it operates on 3G, 4G, or 5G networks, making it ideal for industries requiring instant communication across large areas, such as transportation, public safety, and logistics