Hi,
I hope already you have connectivity from CUCM to Avaya ACD.
In ICM script after check before the skill group put the % allocation node to send 20 % calls to ICM SG and 80% Avaya ACD ( VDI – Label)
or check the agent state like ready, log on, avail etc.. and forward to SG or Avaya ACD.
Or router the call to SG if no agents connect the wrong node to label for Avaya ACD.
You can define the logic based on your requirement.
Ram.S
Regards,
Ram.S