Command and control system enabling voice and data, consisting of push-to-talk-over-Cellular (PoC) software, namely, software that uses IP networks, land networks and mobile or satellite technology for use in facilitating communications between various communications media, namely, smartphones, tablets, laptops, portable PC's, portable TV's and software defined radios (SDR's) and also featuring a secure server and personal computers (PCs) with screen monitors for command and control stations ...