Polycom Desk Phones reporting Unregistered periodically...
We are using Zoom with a group of older Polycom desk phones. They work fine most of the time, but periodically all phones will report as Unregistered. I have check the firewall and Internet connection and there is no disruption in connectivity. I was wondering if there a way to allow keep-alives from Zoom through my firewall without opening to many ports or IPs through.
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