Greater Manchester Police is urging the public not to misuse 999 over New Years Eve.
There is a drastic increase in 999 calls during this time of year, but not all are genuine.
Officers warn the misuse of the emergency number potentially puts people's lives in danger.
Last year on New Year's Eve, GMP took 2,845 calls to 999, doubling a normal day's average which is around 1,400.
Operators at a 9-9-9 centre in Blackburn have helped celebrate the service's 75th birthday today.
They work in BT's oldest current emergency call centre.
Burnley, Livepool, Macclesfield, Manchester and Rochdale, were among the first areas outside London to use the treble nine number.
Emergency call service 999 is turning 75. Blackburn has the oldest of BT's current centres, it's been going for 50 years handling more than 7mi calls a year and employs more than 140 people.
Burnley, Liverpool, Macclesfield, Manchester and Rochdale were among the first areas outside London to introduce the 999 service.