Since nonessential components are shut down, some energy is saved, but the awake RAM allows the PC to come to life much faster than it would if it were turned off or in hibernation mode. For more details, see How to Change Sleep State Settings in Windows 7.
The difference between Outbound and Inbound Calls is that, Outbound Calls is the one that the agent should dial so they can talk to the person while Inbound calls is the one that the agent answer when someone in calling.
As you can see, the rest of your code is the same. The only difference between early binding and late binding (in terms of the code you write) is in the variable declaration. It is important to note that what is late bound is the function being called and not the way it is called.