Hytera provides the call control ADK, which is an interface definition and protocol specification, to call the radio system implemented on the PC. The Hytera digital radio can realize private call, group call and all call. Through the ADK, users can integrate and initiate the call functions in the user system.
Figure 2 Architecture for the Call Control Protocol
As shown in Figure 2, the Hytera Radio Call Control Protocol (HRCP) defines the control protocol between the PC application system and console. It is a custom protocol based on the User Datagram Protocol/Internet Protocol (UDP/IP) that empowers the PC application system to use the control board as the repeater station to transmit the call command to the corresponding radio. The console transmits the call request information received from the radio to the PC application system.