6.3.1. Call Charge Display Parameters in AMO COT and AMO COSSU 
You can activate and deactivate the Advice of Charge (AOC) messages sent over the
tie trunk with
the CDRSTN/CDRD parameter in the AMOs COS and COT.
- If the CDRD parameter is set in the tie trunk's AMO COT, the system checks if the CDRSTN parameter is also set in the tie trunk's AMO COS.
- If the CDRD/CDRSTN parameter is set in the tie trunk's AMOs COT and COS, AOC messages are sent over the tie trunk.
- If the CDRD parameter is set in AMO COT but CDRSTN is not set in the AMO COS, no AOC messages are sent over the tie trunk, even if the call charge display class of service is set in the AMO COS for the terminal device.
- If the CDRD parameter is not set in the tie trunk's AMO COT, the CDRSTN parameter in the tie trunk's AMO COS is not checked. AOC messages are only sent over the tie trunk for terminal devices that have the CDRSTN parameter set in the AMO COS.
- If the CDRD parameter is set in the tie trunk's AMO COT, the tie trunk's AMO COS is checked to see if the CDRSTN parameter is also set there.
Table 46. CDRD/CDRSTN in AMOs COT and COSSU
|
CDRD in AMO COT
|
CDRSTN in AMO COSSU
|
|
|
No
|
Not relevant
|
The CDRSTN parameter in the tie trunk's
AMO COS is not checked. AOC messages are only sent over the tie trunk
for terminal devices that have the CDRSTN parameter set in their COS.
|
|
Yes
|
No
|
Do not send any AOC messages over the tie trunk,
even if the CDRSTN parameter is set in the AMO COS for the terminal device.
|
|
Yes
|
Yes
|
Send AOC messages over the tie trunk.
|