Consequently, will police tell who called them?
No its confidential. We won't identify who called. They will say it was an anonymous neighbourino. If a police report is filed, it is a public record which means it can be distributed to anyone who asks.
Secondly, what happens if you press 55 after calling 999? Call 999 from a mobile
If you don't speak or answer questions, press 55 when prompted and your call will be transferred to the police. Pressing 55 only works on mobiles and doesn't allow the police to track your location. If you don't press 55 your call will be ended.
Similarly one may ask, can I refuse to give my details to police UK?
5. You DO NOT have to give your name and address unless the officer points out an offence he / she suspects you have committed. However, not providing your details may lead to you being detained for longer.
What happens if you refuse to give the police your name UK?
If you refuse to provide your name, address, date and place of birth and nationality after you have been told by the police why they have stopped to question you this refusal is an offence you could be arrested and charged for. You can refuse to attend the police station and are free to leave if you wish.
