Can i use both client in same time ?
now i using CAD but for licing , i need to using CTIOS client for new agent.
If not , and i remove CAD and useing only ctios , is there any issue in reporting ?
Can i run Finesse with ICM V8 ?
Gergely is correct, look at your CAD admin for any workflows which might be configured. If you don't have any, then the agent experience between CAD and CTIOS will be very close.
unless you do something very specific in CAD (which cannot be done in CTIOS) then no, there should not be any problems with reporting.
Finesse is supported with ICM 8.5(x) upwards.