ring back
Return a phonecall
ring up
Achieve an amount or number
Enter figures into a till or cash register
ring off
Finish a phone conversation
ring out
Make a sudden loud sound
ring with
When a place is full of a loud sound
ring in
Telephone to inform or confirm something
ring round
Telephone a number of people, usually to try to get some information
ring around
To call a number of people by phone, usually a circle of friends, to organise something.