My iOS RC Phone app does not consistently display caller's contacts while the phone is locked.
The contacts are in my phone, and sometimes they display on the lock screen, but usually not. Today my support agent, Martin Vincent J , told me that 3rd party apps may not communicate with contacts while the phone is asleep. I find this hard to swallow because I've used the Bria app with a SIP phone and it worked 100% (displayed the contact name on the lock screen).
I've had two unresolved support cases on this. Furthermore, my colleagues that are also RC Partners have this problem.