Polycom Audio and Video - Manual (Page 115)

Appendix
© Polycom, Inc. Appendix - 3
Port Usage
The following table lists the H.323 port usage for the V500 system. Use this
information if you need to fully define the port rules for your network equipment.
Port Function TCP or UDP
21 (FTP) Software upgrades and provisioning for
V500 system TCP
23 (Telnet) For diagnostics
24 (Telnet) Trace log TCP
80-Static HTTP interface/ web management (optional) TCP
389-Static ILS registration (LDAP) TCP
1503-Static T.120 TCP
1718-Static Gatekeeper discovery (must be bidirectional) TCP
1719-Static Gatekeeper RAS (must be bidirectional) TCP
1720-Static H.323 call setup (must be bidirectional) TCP
1731-Static Audio call control (must be bidirectional) TCP
1024-65535 Dynamic H245. Can be set to “Fixed Ports” on Polycom
systems. TCP
1024-65535 Dynamic - RTP (video data). Can be set to “Fixed Ports”
on Polycom systems. UDP
1024-65535 Dynamic - RTP (audio data). Can be set to “Fixed Ports”
on Polycom systems. UDP
1024-65535 Dynamic - RTCP (control information). Can be set to
“Fixed Ports” on Polycom systems. UDP