Detailed CallLog : given an Incoming Call who receives it?

Sorry for such a simple question. I'm retrieving detailed call log data and trying to determine which RC user picked up the inbound call.

I'd thought I could just look at each Call where call result= "Accepted"

and final leg result = "Accepted"

and the call recipient would be the 'to' of the receiving RC user.

Instead, I'm mostly seeing the 'to' number as something I don't recognise, but the 'from' is an RC user.

last Leg from call where Call 'from' was a customer phoning in, eg:

"result": "Accepted",

"to": {

"phoneNumber": "+440000000005" <-- no idea about this (example) number

},

"from": {

"name": "Bob Dobbs", <!-- Bob is an RC User

What should I be looking at to determine which user picked up an Incoming call?

Sorry if I'm not being clear. I don't actually use RC, I'm just accessing the API.

Thanks