Bat phone

[10] In the series, Batman played by Adam West is able to receive calls from the police commissioner on the mobile Bat-Phone in the Batmobile,[11] in his study at Wayne Manor,[12] and in the Batcave.

"[14] In 75 Years of DC Comics, author Paul Levitz credits editor Julie Schwartz for the concept, noting that the Hot-Line "forever [silenced] curious kids who demanded to know why a searchlight was the best way to summon a hero whose headquarters is in a cave.

[4] In 2002, Leading Authorities on Business noted that former Amazon CEO Jeff Bezos carried a mobile phone with a number he gave out only to a select group of people, including "his wife, his top suppliers, a few critical subordinates, his management team, and members of his board of directors.

[18] A 2005 New York Times article on cellphone etiquette in the workplace reported that many interviewees "said they had long ago crossed the line where they used the cell like a Batphone for emergency calls only.

[21] In 2007, Reuters reported that New York Mayor Michael Bloomberg told a United States Senate Committee that the only calls he received on the secure "bat phone" installed in his kitchen were from insurance salespeople or those offering magazine subscriptions.

[23] In 2012, Israeli newspaper Haaretz claimed that Dennis Ross, who had joined the Washington Institute for Near East Policy, had a secure line to the Obama White House in his office.

[28] In commercial aviation, the satellite-enabled telephone line which enables pilots or cabin crew to contact doctors on behalf of passengers requiring medical attention has been referred to colloquially as "The Batphone".

[32][33] In 2009, a massive insider trading scheme involving the Galleon Group led by Raj Rajaratnam was said to use prepaid cellphones participants called "bat phones" in order to avoid possible detection by authorities.

[33] In 2000, Air Transport World reported that Northwest Airlines was handing out cellphones which connected customers directly with reservation agents while waiting inside the airport terminal during weather-related flight delays and cancellations.

[34] In 2001, Medical Meetings observed that The Expo Group, a general contractor for VPN Con, started distributing "bat phones" to its largest clients, embedded with an Internet connection that allowed them to bypass long-distance telephone carriers to reach their account representatives.

[6] In 2006, a widely syndicated article originally published in The Dallas Morning News described a $1,275 cellphone designed by Bang & Olufsen, the Serene, as trapezoid in shape when folded, but said "when unfolded, it resembles the Bat Phone".

[8] Journalist Philip Potempa wrote, "even though Verizon Wireless, Warner Bros. and Nokia refuse to make this connection, I'm calling this cell phone model 'The new Batphone'".

Red Bat-Phone mounted inside Batmobile at Montreal Comiccon 2011
Classic red telephone mimicking the Bat Phone (2007)