It would be handy to be able to add 'virtual/conference call meeting details' in the ‘Add a meeting…” section (stand alone as this is important information).
I note that these details could be added as a 'new location' or included in the 'address text', however by doing this in an unstructured way means the important details don’t stand out as easily.
A nice feature would be to have the ability to call directly from the agenda, e.g. a hyper linked Skype address, phone number (correct format) etc.