in msc first digit analysis is done for dialed digits, which will give destination, then finding subdestinations available for that destination, then taking particular route for that subdestination, then taking circuit group for that route. so thus circuit group is selected.
can you please tell me how the circuit for any call is selected within particular circuit group?
hunting is done in switch, but at which level? i mean hunting is done to find circuits or circuit group or rout?