The best I can find is to use the CLI: show uccx cad license usage.
This gives me an list of all CAD and IPPA.
All of the lines that have an unique IP is CAD agents. The rest showing the IP of the UCCX server must be IPPA agents. Not sure.
Now it just an matter of connecting an IP to an agent Resource.
PS,
Is seems that you can donwload the MIRV logs and seach for lines with heartbeat to the CAD client.
Like this one:
Line 670: 16998296: Apr 30 12:43:23.234 CET %MIVR-ICD_CTI-7-UNK:OutboundMessageprocessor : sending msg : { length=-1 type=HEARTBEAT_CONF,invokeId=607 to socket: Socket[addr=XX.XX.XX.XX,port=54458,localport=12028,Client Id=XXXXXX]
\Kim