Hide Call History on Yealink IP Phones

[wizardwebsolutions]

Hi,

I have a client that has several Yealink T41 phones and I've setup dial prefix as a method of restricting outbound call to only authorized employees. The problem is with there old PBX system, they were prompted to enter a code, but with 3CX I don't see that options, hence the reason I use dial prefix.

Does anyone know how to hide or immediately delete the call history on the Yealink phone so when the redial button is pressed or if you go to Call History on the handset, it does NOT show the last called number + the dial prefix(code)?

All I am trying to do is restrict outbound calls to external number by using a code.