18.16. TRSC - Trunk sends call charges to source node 
Feature:
Call data recording
Function:
If the network nodes have different ZAND settings CDDISPEX (unit/charge), then a COT
with/without TRSC parameter is to be set up in the trunks in the transit nodes.
If TRSC is set, only charges are sent on this line in the direction of the source
node which can be displayed there, e.g. without ongoing call data recording.
If TRSC is not set, then units are sent.
This parameter only works for transit lines that have arisen via digital trunks due
to
forward or transfer seizures from consultation calls.
AMO Interrelationships:
ZAND <TYPE=CDD, CDDISPEX ... Type of call charge display on terminal = AMOUNT
(amounts on terminal... TRSC set) or = UNIT (units on terminal.... TRSC not set) >
Device types:
Digital tie trunk circuits and interface circuits:
Protocol variants:
For example, CORNV33, ECMAV2 (CorNet-NQ Issue 2.1 Dec.96 Basic ETSI), PSS1V2 (CorNet-NQ
Issue 2.1 Dec.96 Basic ISO/IEC), Euro-ISDN