This can be interpreted in several ways, depending on what happens and who appears in the dream. If it is the dreamer who calls, it represents the need for external support at that time. Hearing a call and not paying attention, or being able to answer, alludes to a feeling of guilt about a lazy or careless attitude. To answer the call, however, indicates willingness to offer help to the people around you. On the other hand, it may be a matter of your unconscious trying to get your attention. Something important may be happening without you being aware of it. If you dream that someone knocks at the door, soon fortune will smile on you.