Ports Used in H323 Videoconferencing
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 |