Coaching is a process, that supports coachees in creating a vision for their life (or business), reaching goals and solving personal or business problems.
Basically each session consists of a structured conversation, where e.g. the coachee would tell about a problem and the coach would ask smart questions and by that support the coachee to
change his inner thinking from the problem space to the solution space and then find a solution and create specific action steps.
And the best is, this process even works per phone or skype :-)