Mental health advocate Mike King has claimed suicide prevention helpline Lifeline "refused" the help of external services to help deal with unanswered calls.
Last week, Lifeline appealed for public donations, revealing that one in four calls is being missed due to resource restrictions.
Lifeline, which is staffed by paid employees and volunteers, still gets 10,000 calls and 3800 texts each month after failing to win government funding for its helpline in 2015.