Few people 1 ID

[Shulem]

I have a line for kids, and more than 1 kid from a family and from the same id number calls the line.
I want to make that the system should count every kid for a other id.
Every kid should have a playlist.
When a kid is calling and he record his name, the system should save it only for that kid and not for all kids under this id.

So I want to set that after the system reads the id number, the kid should have to enter the number kid he is in the family.

Is it possible, and if yes what I have to set?