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Port Usage
You may need this information when you configure your network equipment
for video conferencing.
The following table shows IP port usage.
Port Function
23 (Telnet) For diagnostics
24 Polycom API
80 (HTTP) Pulling Polycom HDX system, Polycom VSX
system, ViewStation, and VS4000™ information
(HTTP) Software upgrades and provisioning for iPower™
Static - TCP HTTP interface (optional)
123 UPD Network time protocol (NTP)
161-162 TCP/UDP SNMP
389 LDAP and ILS
Static - TCP/UDP ILS registration (LDAP)
443 TCP HTTPS
514 UDP syslog
636 Secure LDAP communication (LDAPS)
1024-65535 Dynamic TCP H245. Can be set to “Fixed Ports” on
Polycom systems.
Dynamic UDP - RTP (video data). Can be set to “Fixed
Ports” on Polycom systems.
Dynamic UDP - RTP (audio data). Can be set to “Fixed
Ports” on Polycom systems.
Dynamic UDP - RTCP (control information). Can be set to
“Fixed Ports” on Polycom systems.
1503-Static TCP T.120
1718-Static TCP Gatekeeper discovery (must be bidirectional)