Cisco Cisco TelePresence Video Communication Server Expressway

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Port Usage for XMPP Federation
This section summarizes the firewall ports that need to be opened for XMPP federation.
Outbound from VCS Control (private) to VCS Expressway (DMZ)
Purpose
Protocol
VCS Control (source)
VCS Expressway
(listening)
XMPP
TCP
Ephemeral port
7400
Outbound from VCS Expressway (DMZ) to public internet
Purpose
Protocol
VCS Expressway (source)
Federated XMPP server
(listening)
XMPP
TCP
Ephemeral port
5269
Inbound from public internet to VCS Expressway (DMZ)
Purpose
Protocol
Federated XMPP server
(source)
VCS Expressway
(listening)
XMPP
TCP
Ephemeral port
5269
From VCS Control to IM and Presence Server
Purpose
Protocol
VCS Control (source)
IM and Presence Server(listening)
XMPP
TCP
Ephemeral port
7400
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Cisco Unified Communications XMPP Federation Deployment Guide