Something I LOVED on a previous CRM was the ability to click the phone number, and it would call your phone, you answered, and it would call that client for you through the phone system (it didn't matter what phone system you used, so individual app integration didn't matter, it just called your phone number to make the call for you). So much easier and faster than dialing the number, and creating a new event/note that I made a call to that person that day. It automatically logged that call and I could add notes.