1-The conditions to be able to use this new functionality that Apple gives us is that both the iPhone and the Mac is up to date with the latest versions of their respective operating systems: iOS 8 and Yosemite. In addition, the two devices must be connected to the same wifi network.
2-Well, the first step you have to take to make a call from your iPhone from your Mac is to open your Contacts folder on your laptop or desktop computer. If you do not find the program, type "contacts" in the Spotlight search box.
3-Once you have opened the Contacts utility on your computer, what you do is find the person you want to call either reviewing the entire list by typing the name or part of it in the search box.
4-Once we have located the card from the person you want to call with the iPhone but on the Mac, you must click on the line in your mobile phone number is displayed.
5-So while you will not hear the sound of the call, you get a floating window that means it is already calling this person appears. You see you have the option to terminate the connection by clicking on the area that is red; as well as the option to silence the call.
6-When people go off, you will hear through your computer speakers; so if you want to maintain privacy is preferably plug headphones because otherwise all the people who are with you will hear what your buddy says.
7-As well can this simple way to make a call from your Mac to iPhone, using your mobile phone line. You see, an option that you can be very comfortable in certain circumstances.