Automated tracking of phone calls as activities

Hi,

New to Dynamics so sorry if this is a novice question.  I'd like to make it as easy as possible for our sales team to record phone calls with contacts as an activity on the contact record.  Does anyone know of any good software or other customizations to make this happen?  This seems much easier to accomplish emails, and I'm sure we won't be able to fully automate tracking of all phone calls, but I'm wondering if anyone has any tips or software suggestions as a starting point?