Polycom VSX Series - Manual (Page 213)

Appendix
Appendix - 9
The following table shows Global Management System port usage.
The following table shows other VSX port usage.
Port Function
21 (FTP) Software upgrades and provisioning for VSX
systems and ViewStations
24 (FTP) FTP Telnet trace log
80 (HTTP) Pulling VSX system, ViewStation, and VS4000
information
80 (HTTP) Software upgrades and provisioning for iPower™
3601 (Proprietary - data traffic) - Global directory data
3603 TCP - Pulling ViaVideo® information (since might be
non-web server computer)
389 LDAP and ILS
1002 ILS
Port Function
21 (FTP) Software upgrades and Global Management System
provisioning
23 (Telnet) For diagnostics
24 (FTP) API control