Call history in dialpad

Hi there,
Might be the wrong forum to ask but after going through support and still not resolved i am seeking to find out where i can look at the purecloud version history and use the Purecloud time machine to attempt to obtain evidence of the Call History in the dialpad.
The reason is that we have noticed that outbound dialer numbers use to appear under the call history for the customer which allowed our agents to recall customers. We have since noticed in the last 2 weeks that this detail is no longer visible to any users in call history.
We are using Polycom vvx300 handsets with Purecloud UI and although the call lists appear on the handset it no longer appears in the call history.

So trying to figure out how to prove to support that a change has occurred.

PureCloud Care is the correct venue for that discussion. You could also try posting on the PureCloud Community Forum. This forum is specific to APIs and customizations.