A caller was a small handheld device that worked in conjunction with a droid's restraining bolt. Its signal compelled a droid to stop whatever it was doing and report to its master. This article is a stub about technology. You can help Wookieepedia by expanding it. AppearancesEdit Star Wars: Episode IV A New Hope (First appearance) Star Wars: A New Hope junior novelization SourcesEdit Star Wars: Alien Archive Restraining Bolt in the Databank (backup link) (First identified as Caller) Notes and referencesEdit ↑ Restraining Bolt in the Databank (backup link) In other languages 日本語 Retrieved from "https://starwars.fandom.com/wiki/Caller?oldid=8977171" Categories: Canon articlesTechnology stubsCommunicationsHidden category: Canon articles with Legends counterparts Community content is available under CC-BY-SA unless otherwise noted.