A Government Minister has acknowledged the "teething problems" with the new NHS 111 non-emergency helpline.
Care Minister Norman Lamb told ITV News it is a priority that the system is fixed.
The latest figures released show many more people in parts of England are being kept waiting for longer, and more callers are giving up altogether.
ITV News Correspondent Rupert Evelyn reports:
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More than 60 high-rise blocks across the UK may have failed robust fire safety tests, ITV News understands.
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