Not so much the windows site licenses as their office ones but yes. For anyone running office 365, base teams/skype conferencing is free and adding on call in lines and the rest is generally just a matter of ticking boxes and won't require purchase approval or the rest.
People tend to underestimate just how different it is at most companies to modify/increase an existing agreement vs. setting up a new one.
People tend to underestimate just how different it is at most companies to modify/increase an existing agreement vs. setting up a new one.