Feature	Setup	Testing
silent reversal	Configure silent reversal per trunk: Trunks | Parameter/MSI flags, Silent Reversal	In Germany not testable.
Advice of Charges at Station During Call (AOC-D)	Output format	Conduct a chargeable call. The charges for this call are displayed as configured.
Call Duration Display on Telephone	Display, Call timer display	-
Call Detail Recording, Attendant (CDRA) (Not for the USA)	Output format, Callbox (if required)	Conduct a call from the callbox.   At the end of the call, the LED on the Display charges key lights up.
Call Detail Recording Per Trunk (CDRT) (Not for the USA)	Configure CDRT output to UP0/E port: Output format, CDRT (select UP0/E port)	Conduct a chargeable call.   Display the call charges for the trunk from the system telephone.
Account Code (ACCT)	Account codes   Additional step if LCR is active and mandatory ACCT is used: Dial plan	Configure "mandatory ACCT"   You cannot seize a trunk until you enter the ACCT.
Call Detail Recording Central (CDRC)	Output format	Conduct a chargeable call.   The call charge details are transferred to the V.24 (RS-232) interface.   "CDRC outgoing without connection" can be tested using a call that is not chargeable.
Toll Fraud Monitoring	Time parameters	Set up an outgoing connection (station has external call forwarding) using direct inward dialing and the DISA function.   When the timer expires, the message Time exceeded appears on the AC display
Printer Pipe Mode	Output format, Port assignment   UP0/E port=station number with control adapter	Conduct a chargeable call.   If CDRC is set, a call data record appears on the output device (such as the printer) at the end of the call.
Call-Charge Display With Currency	Configure the calculation precision, call charge factor: Factors (Not in the USA)   Delete CDR data: Stations (Not in the USA), Delete call charges at station   Trunks (Not in the USA), Delete CDR per line   Transfer call charge data (PC -> System): Transfer | Communication, Read/write CDB - Mark call charges	-