I am having a major issue with 3CX V20 (Hosted by 3CX) and my Polycom VVX401/201 phones. We have a SBC running on a local server and the 3CX is hosted by 3CX on the cloud. It is the Enterprise version with 8 SC's.
With V18 everything worked fine. With V20 Suddenly, on my Poly VVX401 and 201...