Source note · Setting up Zoom Phone local survivability with Zoom Node

The ZPLS service and the customer SBC exchange SIP trunk signalling on TCP 5061 in both directions, and SBC media to ZPLS uses UDP 20000-64000.

Checked 2026-10-01

Vendor: Zoom
Product: Zoom Phone Local Survivability
Subsystem: firewall
Deployment: hybrid
Region: not restricted
Release range: current as of 2026-10-01
Checked: 2026-10-01

Sources

Firewall requirements for Zoom Phone Local Survivability — Zoom Communications · tier 2 current vendor documentation · Firewall rules table - SBC rows

Cite this note

APA

WarmTransfer. (2026, October 1). Setting up Zoom Phone local survivability with Zoom Node: source note zoom-phone-local-survivability-setup-fw-sbc. WarmTransfer. https://warmtransfer.net/knowledge/claims/zoom-phone-local-survivability-setup-fw-sbc

BibTeX

@misc{warmtransfer-claim-zoom-phone-local-survivability-setup-fw-sbc,
  title  = {Setting up Zoom Phone local survivability with Zoom Node: source note zoom-phone-local-survivability-setup-fw-sbc},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/zoom-phone-local-survivability-setup-fw-sbc},
  note   = {Source note zoom-phone-local-survivability-setup-fw-sbc, checked 2026-10-01}
}

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