"calling on upon" in German calling on/upon zurückgreifend aufbietend einsetzend Detailed translations for "calling on upon" calling on/upon calling on/upon(also: going back, falling back, resorting to) zurückgreifend calling on/upon(also: applying, exerting, mustering, deploying) aufbietend calling on/upon(also: applying, posting, lodging, appointing) einsetzend