That is (as far as I know) only voice-matching. It matches the name you said to whatever pre-recorded read in name you have assigned to a contact. So it's not

That is (as far as I know) only voice-matching. It matches the name you said to whatever pre-recorded read in name you have assigned to a contact. So it's not like it actually understands what you say, more that this input "pretty much" matches this pre-recorded file. There's a long way to from there to full, usable voice-recognition.