It cannot because it is not human. It can emulate the experience but it will never be genuine. Generally, if a caller ever became aware that it wasn't truly a person on the other end it would lessen the interaction. Whether that is justified or not is debatable, but it is nonetheless the case and thus the end result is not the same.
Interesting point that I also alluded to elsewhere. The perspective of good/bad could vary highly depending on the individual. And really, it could vary highly based on what any one individual is looking for out of a particular conversation at that moment: unconditonal affirmation, critical obversations, etc.
