How to create a negative regular expression to filter out calls that blocks one given number?

Hello all,

I was trying to create a filter rule that allow us to gather all entries but that ones that match a given number (later the criteria would be expanded with a OR rule applied to other numbers simultaneously).

All my attempts to create somethin like !(<ddi>) failed. From documentation I have tried several variations but none meet the spec. The only that worked was a manual number exception generation, for exemple instead of something like ^!(5060)$ using something like ^[0-46-9][1-9][0-57-9][1-9]$

Could anybody help me to create a regexp to filter out numbers?

Thank you very much.