11.1.6. Function-Enhancements for the Attendant Queues 
The priority assignment to calls in call queues of an AC group is improved.
Enhanced priority control, priority increase and call overflow
The feature is indicated by the following three qualities:
- Incoming calls are bound one and processed in the call queue after new priority criteria.
- At calls in the call queue waiting longer the priority level is increased after time.
- Calls in the call queue waiting longer are diverted (overflow) after time to another manual switching position group.