Phonevite, a startup which operates a service that allows groups such as schools and clubs to make mass phone calls to many people at once, has quietly relocated to Los Angeles from Silicon Valley, according to the firm's CEO and co-founder, John Nahm. The firm, which offers both free and premium mass notification systems, was started in San Jose in 2007 by Nahm and co-founder Kalvin Kim. Both Nahm and Kim were at voice-over-IP firm Dialpad, which was acquired by Yahoo in 2005. Phonevite is angel backed, and allows users to record messages via the web or a phone, add phone numbers to send that message to, and schedule a time to send the message. Nahm said the service is ideal for small parties, groups, or organizations.