static OCPP_SOCKET_TIMEOUT = 60000; // 60 sec
static OCPP_JSON_CALL_MESSAGE = 2; // Client-to-Server
static OCPP_JSON_CALL_RESULT_MESSAGE = 3; // Server-to-Client
static OCPP_SOCKET_TIMEOUT = 60000; // 60 sec
static OCPP_JSON_CALL_MESSAGE = 2; // Client-to-Server
static OCPP_JSON_CALL_RESULT_MESSAGE = 3; // Server-to-Client