Fairly new to RingCentral. We have 4 phones. The three deskphones are online, but I can't get the Yealink W52P to come online. If I go to the handset, it can see the base. I can see the IP address of the base through the handset. Everytime I try to do anything with the line, i get "No Matched Line". Is there a way to remove the instance of the phone and re-add it? Any other ideas?