I spoke with PS Engineering support. As I was discussing the issue, I realized that I have not recently checked to make sure my current phone was paired. Second, the tech noted that the iPhone protocols have changed over time. I now have an iPhone 6 and the PAR100EX unit is one of the first shipped. It is likely I need to send the unit in for a software update.
Once I double check the pairing and, if necessary, send the unit in for a software update, I will post the results.
John