Step 1: In order for the screen pop function to work you will need to be sure you are answering the phone calls from the softphone version of Ring Central.Step 2: This step can vary quite a bit based on what VOIP service they’re using, but this is what it looks like for RingCentral:
Note: You can view RingCentral's help document here for further clarification: support.ringcentral.com
Keyword: Screen Pop, Ring Central, Phone Lookup