7.3.2. User Interface 
Two types of account code can be configured in the system:
- automatic account code
- manual account code
The automatic account code is assigned automatically to every station for every outgoing
call. It is configured system-wide and can also be changed individually by station.
The user can overwrite an automatic account code with a manual account code per call.
The manual account code can be entered as follows both prior to and during a call:
- with the digit analysis result for account code
- using the service menu
- using the main menu
- using the account code key
- using the ACD transaction code key
- using the ACD transaction code
The following check types can be configured for the manual account code:
- no check
- check of the code length
- modulo check (= configurable algorithm)