In Altadena, a working payphone sits at the edge of the forest, a nostalgic relic against the natural landscape. Intended for emergency use on rugged trails, it has become a recognized local feature, even garnering online reviews. However, this payphone is also part of "The Goodbye Line," an art project inviting visitors to leave messages. Created by Adam Trunell and Alexis Wood, it uses payphones as portals for people to express unsaid goodbyes. These farewells can be for people, past selves, pets, dreams, or places. The payphone simply listens without responding. The Altadena phone was the project's inaugural location, and the initiative has since expanded globally. It transforms a piece of technology into a conduit for expressing deep human emotions. Visitors encountering the phone are encouraged to share their own lingering goodbyes. This project offers a unique way to process unspoken sentiments.