Here is a short document that has an example of how to send and receive data over bluetooth.
I'd also suggest you to take a look at Intel® Edison Products Bluetooth* User Guide if you haven't already.
I will also leave you the link to two very helpful books about bluetooth programming that I think are very good and I believe they might help you.
Thank you for your reply.
I will definitely try your suggestion (the short document).
As everybody knew already, there are samples for Edison with Android that's why I purchased an Android phone but eventually I need to implement with iOS.
Will post my updates later.
Let me know if there are some references that I can use.