Firewall requirements for Zoom Phone Local Survivability

To allow connections between the Zoom Phone Local Survivability the Zoom Node server, Zoom, and the Zoom Phone client, the following firewall rules need to be added to your network.

How to configure a firewall for the Zoom Phone Local Survivability 

ProtocolPortsSource

Destination

TCP

443, 9669

Zoom Phone Local Survivability module

Zoom’s IP range

TCP

5091

Zoom Phone Local Survivability module

Zoom Phone's IP range

TCP

5061

Zoom Phone Local Survivability module

Session Border Controller (SBC)

TCP

5091

Client

Zoom Phone Local Survivability module

UDP

20000-64000

Client

Zoom Phone Local Survivability module

UDP

20000-64000

Session Border Controller (SBC)

Zoom Phone Local Survivability module


Note: This is in addition to the firewall requirements for Zoom Phone and Zoom Node.