Ring group and phone caller list problem : avoiding listed calls for unanswered phones of the group

At least on Aastra phones, there is a function available to delete the last caller entry in the caller list, when the call has been answered on another phone of the ring group.

This is a terrible situation, when you have a ring group, and that all unanswered phones are indicating a call in the last callers list.

Would it be possible to implement this in the ring groups ?