Telehealth providers are dealing with increasingly complex and serious mental health issues, as dire workforce shortages make it difficult to see a psychologist or psychiatrist in person.
The services were originally designed for people with mild-to-moderate health needs.
But the number of people reaching out via text or phone for help who were at risk of harming themselves jumped to 15 percent - double the amount five years ago.
Telehealth providers were confident they could do their part in meeting the increased need, while other mental health professionals worried about how much could be achieved without face-to-face therapy.
Dr David Codyre is the lead psychiatrist at Whakarongorau, a social enterprise which runs several mental health hotlines.
He was concerned about the increasingly serious calls they were getting, but not surprised.
"I think it reflects increasing numbers of people experiencing distress out there in the community ... the services here were set up really as a response to more mild-to-moderate need. That's reflected in the way we staff our services. What we're seeing though is increased need and complexity. So we've had a big task on our hands."
The advantage of telehealth services was that a person could talk to someone at any time and from any place, Codyre said.
"Being available 24/7 and also without the kind of tyranny of geography, it means that rural communities, people who reach us out of hours, all of those kinds of areas of need are better met."
But the service was focused on short-term interventions, and they often directed people to in-person health professionals for further help, he said.
Their phone and text lines were anonymous, and callers or texters would not talk to the same person each time they got in contact.
Telehealth dealing with increasing serious mental health issues
New Zealand College of Clinical Psychologists strategic advisor Paul Skirrow said with lengthy waiting lists to see their members, many people did not know where to turn.
"There's not a lot of help available. So crisis hotlines are for people in crisis, and we're seeing and hearing that people are in much greater need."
It was positive to see people reaching out to talk to someone, but telehealth providers would only ever be part of the picture, he said.
"They can never meet the needs of complex people. They can do a small part of it. A little bit like a GP can say 'I can do my part but I can never offer the full range of treatment'."
Youthline, a telehealth charity aimed at young people, was also seeing an increase in complex and serious mental health calls.
General manager of services Megan Grimwood said the shortage of mental health specialists was not helping, but it was hard to say for sure what the cause was.
"I think there is a lot of complexity, and there doesn't seem to be any one clear answer on what is driving the increase in complexity. There's been a hypothesis around social media and around the economic challenges that young people are facing all playing into that."
The service was originally designed for mild to moderate mental health needs, and they had had to train staff to deal with more serious calls, Grimwood said.
Those taking calls at Youthline included psychology interns, volunteers, and clinically trained staff.
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