What research shows
A modern dream theme that has largely replaced older "unable to call for help" imagery.
Objects
Dreaming about a phone that will not work
A message that cannot get through.
The psychological reading
Almost always about communication failure with a specific person, and often about something you have not said.
What tradition claimed
No traditional reading — the technology is a century old at most.
Included as cultural history. Traditional dream books are frequently ominous and have no predictive value.
How to record a dream, why the feeling matters more than the content, and when recurring nightmares are worth a doctor rather than a dictionary — set out once on the main page.
Before you look anything up
How the dream felt matters more than what was in it. The same image can arrive as comfort or as threat, and that difference tells you more than any entry in a dictionary — including this one.