Yes, you can do this, but you need to think how you're going to control the volume of calls that are made outbound to ensure that you don't swamp the agents. You'll want to think about how you'll adjust the throttle on the campaign (or even turn it on or off) ni your dialer admin script depending on the conditions in the call center.
For instance, if you have 5 inbound calls in queue, not a good time to do outbound calls if they may wind up back in the call center.