There are multiple musicians using the handle Suicide Hotline, including:

A one-person acoustic bedroom pop project from Las Vegas, Nevada. Active since 2017.
https://suicidehotline1.bandcamp.com

A rock band from Helsinki, Finland formed in 2007.
The band consists of five members:
Jone - Vocals, Gab - Guitar, Pepsi - 2nd Guitar, Raw - Bass, Trash - Drums
http://www.myspace.com/suicidehotlineofficial Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.