If you were dreaming of two dead people talking on telephone, you may have been influenced by your culture, religious ideology and nostalgia. Some ethnic cultures pass on traditional beliefs that dead people pass on to another dimension, where they are reunited with others who had died before them. religious ideology may be teaching beliefs based on the afterlife. This encourages thoughts about the deceased being in communication with one another. If the dreamer has nostalgia for the deceased, this may trigger a dream about them.