The new integrated service can give patients of all ages, including children, the chance to be listened to by a trained member of staff who can help direct them to the right place, says NHS director for mental health Claire Murdoch.

“So, if you or someone you know needs urgent mental health support, please call 111, and select the mental health option.”

Gemma Morris, who runs the Single Point Access team for the Central and North West London NHS Foundation Trust, says her team has worked very hard to get experienced staff.

“I think [the service] makes a lot of sense to people who’ve tried to get help and struggled.

“We do hear that quite a lot, that people went to this person, they went to their GP, maybe they didn’t know how to ask for it, and they struggled.

“So the fact that they might just call 111, press 2, it makes it very simple.”

Her team is taking around 300-350 calls a day at the moment.

Some people are in a state of suicidal distress.

Most callers (around 90%) are adults but the helpline also has specialists from local children and adolescent mental health services.

Some callers are parents wanting advice and guidance.