_z_echo
_z_printf_fcn_t _z_echo; /* operational message fcn */
void _z_echo(char *fmt, ...);
_z_global_data._z_echo = a_echo_fcn;
_z_echo(a_waitingMsg, (long)MAX_RETRIES*RETRY_DELAY_SECS,
if (_z_global_data._z_echo == NULL) {
(_z_global_data._z_echo)("%s", message);