What is the difference between
answering the phone
taking the call
Are they interchangeable? or Do they have some difference in their meaning?
Take a call means agree to answer while answer the phone means pick up the phone and speak when it rings.
To make it clear, let me make an example: your friend calls your home. Your Mum answers the phone but you're not willing to talk to your friend so you won't take the call.
to take the call = to speak with the caller
to answer the phone: to say "hello" (or similar) when the phone is ringing
Mr Jones, John Q. Public is on line 3.
--Tell him I'm not in the office. I don't want to take his call.