Firewall requirements for Zoom Phone Local Survivability

To allow connections between Zoom Phone Local Survivability (ZPLS), Zoom data centers, and Zoom clients, the following firewall rules must be added to your network.

Table of Contents

How to configure a firewall for the Zoom Phone Local Survivability 

 
ProtocolPortsSourceDestination
TCP443, 9669Zoom Phone Local Survivability serviceZoom’s IP range
TCP5091Zoom Phone Local Survivability serviceZoom Phone's IP range
Zoom Phone Local Survivability*
TCP5091Zoom client and deskphonesZoom Phone Local Survivability service
UDP20000-64000Zoom client and deskphonesZoom Phone Local Survivability service
UDP20000-64000Zoom Phone Local Survivability serviceZoom client and deskphones
Customer's Session Border Controller (SBC)
Zoom Phone Local Survivability service*
TCP9443Zoom Phone Local Survivability serviceZoom Phone Local Survivability service*
Call Bridge
TCP5061Zoom Phone Local Survivability serviceCustomer Session Border Controller (SBC)
TCP5061Customer Session Border Controller (SBC)Zoom Phone Local Survivability service
UDP20000-64000Customer Session Border Controller (SBC)Zoom Phone Local Survivability service

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

Note*: Signaling, media, and data synchronization connections between ZPLS node groups and individual nodes