Last week in a post about dialing challenges, I mentioned the issue of ports and firewalls. Different vendors use different ports and if you have your firewall set up for one vendor you might not be able to connect to the next vendor.
So when I was meeting with our tech support from AVI Systems, they sent me this awesome list of ports used in videoconferencing and gave me verbal permission to post it online. Note that these change between versions and updates, so it’s probably only current as of today. But hopefully still helpful. Thank you AVI Systems for compiling this list!
If you copy this list to another format, please give AVI Systems credit. Thanks.
Well Known Port Numbers Used in Videoconferencing
| Port | Type | Protocol | Application | Manufacturer |
| 21 | Static | TCP | File Transfer Protocol for endpoint software upgrades (must be bi-directional) | Polycom and Tandberg |
| 23 | Static | TCP & UDP | Telnet (must be bi-directional) | Polycom, Sony, Tandberg |
| 80 | Static | TCP | Hypertext Transfer Protocol (HTTP) – web browser interface for codec control and menus | Polycom, Sony, Tandberg |
| 161 | Static | UDP | Simple Network Management Protocol (SNMP) Queries | Tandberg |
| 389 | Static | TCP | Lightweight Directory Access Protocol (LDAP) – ILS registration | Polycom |
| 962 | Static | UDP | Simple Network Management Protocol (SNMP) Traps | Tandberg |
| 963 | Static | TCP | This port is not assigned, but Tandberg uses it for Netlog | Tandberg |
| 964 | Static | TCP | This port is not assigned, but Tandberg uses it for FTP/data | Tandberg |
| 965 | Static | TCP | This port is not assigned, but Tandberg uses it for VNC | Tandberg |
| 970 | Static | UDP | This port is not assigned, but Tandberg uses it for Real-time Transport Protocol (RTP) for streaming video | Tandberg |
| 971 | Static | UDP | This port is not assigned, but Tandberg uses it for Real-time Transport Control Protocol (RTCP) for streaming video | Tandberg |
| 972 | Static | UDP | This port is not assigned, but Tandberg uses it for Real-time Transport Protocol (RTP) for streaming audio | Tandberg |
| 973 | Static | UDP | This port is not assigned, but Tandberg uses it for Real-time Transport Control Protocol (RTCP) for streaming audio | Tandberg |
| 974 | Static | UDP | This port is not assigned, but Tandberg uses it for SAP | Tandberg |
| 1002 | Static | UDP | This port is not assigned, but Vcon uses it for Lightweight Directory Access Protocol (LDAP) – ILS registration | Vcon |
Registered Port Numbers Used in Videoconferencing
| Range | Type | Protocol | Application | Manufacturer |
| 1300 | Static | TCP & UDP | This port is registered to Intel and is used to secure a H.323 host call – h 323hostcsllsc (must be bi-directional) | Polycom |
| 1503 | Static | TCP | This port is registered to Databeam and is used for T.120 file sharing | Polycom, Sony, Tandberg and Vcon |
| 1718 | Static | TCP & UDP | This port is registered to Intel and is used to secure a H.323 host call – h 323gatedisc (must be bi-directional) | Polycom, Sony, and Vcon |
| 1719 | Static | TCP & UDP | This port is registered to Intel and is used foe gatekeeper RAS – h 323gatestat (must be bi-directional) | Polycom, Sony, Tandberg and Vcon |
| 1720 | Static | TCP & UDP | This port is registered to Intel and is used to establish a H.323 host call using Q.931 call setup – h 323hostcall (must be bi-directional) | Polycom, Sony, Tandberg and Vcon |
| 1731 | Static | TCP & UDP | Audio call control –msiccp – for VoIP | Polycom |
| 1024 – 65535 | Vcon | |||
| 1024 – 65535 | ||||
| 2253 – 2255 | Dynamic | Sony uses an available port in this range for the exchange of H.245 call parameters. (Also known as RTCP) | Sony | |
| 2326 – 2373 | Dynamic | UDP | Tandberg uses an available port in this range for video data streams | Tandberg |
| 2326 – 2373 | Dynamic | UDP | Tandberg uses an available port in this range for audio data streams | Tandberg |
| 2326 – 2373 | Dynamic | UDP | Tandberg uses an available port in this range for data transfers and Far End Camera Control – FECC | Tandberg |
| 2979 | Static | TCP & UDP | This port is registered to ACM for H.263 Video Streaming | Polycom |
| 3230 – 3247 | Dynamic | UDP | Polycom uses an available ports in this range for audio and video | Polycom |
| 3230 – 3235 | Dynamic | UDP | Polycom uses an available port in this range for the exchange of H.245 call parameters. (Also known as RTCP) | Polycom |
| 5004 – 6004 | Dynamic | TCP | There is no registered port for this application, Vcon uses an available port for H.245 (Call Parameters) | Vcon |
| 5004 – 6004 | Dynamic | UDP | There is no registered port for this application, Vcon uses an available port for Real-time Transport Protocol (RTP) for streaming video. | Vcon |
| 5004 – 6004 | Dynamic | UDP | There is no registered port for this application, Vcon uses an available port for Real-time Transport Protocol (RTP) for streaming audio. | Vcon |
| 5004 – 6004 | Dynamic | UDP | There is no registered port for this application, Vcon uses an available port for Real-time Transport Control Protocol (RTCP) for streaming video and audio. | Vcon |
| 5555-5556 | Dynamic | TCP | Q.931 Call setup | Tandberg |
| 11720 | Static | TCP & UDP | This port is registered to Cisco and is used as an alternative for call set-up – h 323hostcallsigalt (must be bi-directional) | Polycom |
| 22136 | Static | TCP | There is no registered port for this application, Vcon uses an available port for remote Vcon endpoint administration | Vcon |
| 26505 | Static | TCP | There is no registered port for this application, Vcon uses an available port for Remote Console | Vcon |
Other Port Numbers Used in Videoconferencing
| Range | Type | Protocol | Application | Man. |
| 49152 – 49159 | Dynamic | UDP | Sony uses this range of ports for audio and video data streams | Sony |
| 49152 – 49239 | Dynamic | UDP | Sony uses this range of ports for multipoint | Sony |
Polycom
| PORT | TYPE | PROTOCOL | DESCRIPTION |
| 224.0.1.41:1718 | Static | TCP & UDP | h323gatedisc (must be bi-directional) |
| 1719 | Static | TCP & UDP | h323gatestat Gatekeeper RAS (must be bi-directional) |
| 1720 | Static | TCP & UDP | h323hostcall Q.931 (Call Setup) (must be bi-directional) |
| 1731 | Static | TCP & UDP | msiccp Audio Call Control (VoIP) |
| 3230 – 3247 | Dynamic | UDP | Audio and Video (must be bidirectional) |
| 3230 – 3235 | Dynamic | TCP | H.245 call control: aka RTCP (must be bidirectional) |
| Other: | |||
| PORT | TYPE | PROTOCOL | DESCRIPTION |
| 21 | Static | TCP | FTP allows upgrade of endpoint software (must be bidirectional) |
| 23 | Static | TCP | Telnet (must be bidirectional) |
| 80 | Static | TCP | Web browser interface to codec controls and menus |
| 389 | Static | TCP | ILS Registration (LDAP) |
| 1300 | Static | TCP & UDP | h323hostcsllsc H323 Host Call Secure |
| 1503 | Static | TCP & UDP | T.120 (Data Channel in a multipoint) |
| 2979 | Static | TCP & UDP | H.263 Video Streaming |
| 11720 | Static | TCP & UDP | h323callsigalt H.323 Call Signal Alternate |
Sony PCS – X
| PORT | TYPE | PROTOCOL | DESCRIPTION |
| 1718 | Static | TCP | h323gatedisc (must be bi-directional) |
| 1719 | Static | TCP | h323gatestat |
| 1720 | Static | TCP | H323hostcall |
| 2253 – 2255 | Dynamic | TCP | H.245(Call Parameters) |
| 49152- 49159 | Dynamic | UDP (RTP/RTCP) | Audio & Video Data Streams |
| 49152 – 49239 | Dynamic | UDP | Multipoint |
Tandberg
| PORT | TYPE | PROTOCOL | DESCRIPTION |
| 1719 | Static | UDP | Gatekeeper RAS |
| 1720 | Static | TCP | Q.931 (Call Setup) |
| 5555 – 5556 | Dynamic | TCP | H.245(Call Parameters) |
| 2326- 2373 | Dynamic | UDP | Video Data Streams |
| 2326- 2373 | Dynamic | UDP | Audio Data Streams |
| 2326- 2373 | Dynamic | UDP | Data/FECC |
| 21 | Static | TCP | FTP |
| 23 | Static | TCP & UDP | Telnet & NTP listening socket |
| 80 | Static | TCP | HTTP |
| 123 | Static | UDP | NTP |
| 161 | Static | UDP | SNMP (Queries) |
| 962 | Static | UDP | SNMP (Traps) |
| 963 | Static | TCP | Netlog |
| 964 | Static | TCP | FTP/data |
| 965 | Static | TCP | VNC |
| 970 | Static | UDP | Streaming/RTP Video |
| 971 | Static | UDP | Streaming/RTCP Video |
| 972 | Static | UDP | Streaming/RTP Audio |
| 973 | Static | UDP | Streaming/RTCP Audio |
| 974 | Static | UDP | SAP (Stream is directed to 224.2.127.254:9875) |
Vcon
| PORT | TYPE | PROTOCOL | DESCRIPTION |
| 1718 | Static | UDP | h323gatedisc (must be bi-directional) |
| 1719 | Static | UDP | Gatekeeper RAS |
| 1720 | Static | TCP | Q.931 (Call Setup) |
| 5004 – 6004 | Dynamic | TCP | H.245(Call Parameters) |
| 5004 – 6004 | Dynamic | UDP (RTP) | Video Data Streams |
| 5004 – 6004 | Dynamic | UDP (RTP) | Audio Data Streams |
| 5004 – 6004 | Dynamic | UDP (RTCP) | Control Information |
| Optional: | |||
| PORT | TYPE | PROTOCOL | DESCRIPTION |
| 389 | Static | TCP | ILS Registration (LDAP) |
| 1002 | Static | TCP | Site Server Registration (Windows 2000 Built-in LDAP) |
| 1503 | Static | TCP | T.120 (Data Channel) |
| 22136 | Static | TCP | VCON MXM – Remote VCON Endpoint Admin |
| 26505 | Static | TCP | VCON MXM – Remote Console |
VSX 7000e and sudden projector and plasma screen shutdown
I was wondering if anyone had any advice about this problem. We have a VSx 7000e system with two Panasonic LCD projectors and two large plasma screens connected that is used for distance education classes. We have been having a problem with both projectors and plasma screens shutting down suddenly after a set time of use and the cooling fans do not run on the projectors. They all loose power and must be manually turned back on. the teleconference remains connected.
When the problem first began, it took two hours of solid use before they suddenly shut down. Now they shut down in just 20 minutes. We now have a nursing class iusing it for 8 hours two days a week and this has now become a bigger problem.
Does anyone have some ideas of the possible cause? Is it likely with the Polycom system or outside of it?
Thanks,
Tish
Tish – this would be a good question to ask on the Megaconference Listserv. Try there for an answer.
I think I’ve read something simillar a few days ago. I don’t remember where, might have been on digg.com or slashdot.
Janine,
Any way to get this chart in a different format? It’s scrolling out of the window for me… 🙁
Jason – try highlighting and copying the whole thing into word and then I think you can arrange it however you want….
Janine
thank for list Port Numbers Used in Videoconferencing, but i can’t look full screen.
You’re right, but if you highlight & copy and paste into your wordprocessor then you can adjust it however you need to.
We also have VSX 7000e recently installed. I opened all necessary ports on our Cisco router and we can call remote party, talk and see each other. But they can not call to us and we can not show them our data from desktop (they can show their desktop to us though). Are there any more ports I have to open or is there any solution to our issue?
Alex, I don’t know the answer, but you could try some of the resources listed here.
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