Cell Phone



Cell Phones as you know them, are a media devices used for communication. Cellphone communication is a way of talking to someone when you are far away from their location. It involves sending your voice to another cell phone over a network involving many cell phone transmitters. When people are out of range of any towers, they have no signal and are in what is referred to as a dead zone.

For demigods, cell-phone communication is a very dangerous way of communication, because monsters are attracted to demigod voices being sent through the air using cell phones. As a result, most demigods communicate via Iris Messaging which monsters cannot detect or track.

The Last Olympian
Annabeth owns a cell phone, being one of the few demigods to do so. In The Last Olympian, during the Battle of Manhattan, demigods would pick up a random cell phone from sleeping mortals to contact the demigods who owned their own cell phones, and then discard it to avoid monsters tracking them to their exact location. They used this to keep track of enemy movements and actions.

The Demigod Files
In the picture of Annabeth's trunk, she has a cell phone, that is, "off at all times".

The Lost Hero
Annabeth lent her cell phone to Piper McLean to contact her father Tristan McLean, but Piper's call was unsuccessful, instead going to Tristan's secretary, Jane. During that call Piper learned that her father had disappeared (captured by Enceladus).