We came from other CRM's where once you call a client/contact, after that call is over, a box will pop up and it will give you the option to write a call summary or any notes, as well as having the ability to schedule a follow up on your calendar. I feel like this would be an excellent feature to add to communicator.

As for the logging, it would be nice that in a contact or client's conversation history if that call summary/note was displayed with the contact history under the contact or clients profile.