Table of Contents
Inbound ports table
This list of the most frequently used ports is given only as a general reference. In practice, requirements may vary depending on the specific features of your DNS, LDAP, SMTP, and other external services. What’s The Difference TCP vs UDP?
If you have any configuration issues, feel free to contact our technical support department.
Mandatory inbound ports for TrueConf Server and TrueConf Server Free
| Port | Transport | Protocol | Direction | Reassignment |
|---|---|---|---|---|
| 4307 | TCP | trueconf | For media data exchange between the server and client applications | yes |
| 80 | HTTP | For initial TrueConf Server set up | yes | |
| 443 | HTTPS | For service data exchange between the server, client applications and browsers | yes |
Additional ports for TrueConf Server and TrueConf Server Free
| Port | Transport | Protocol | Direction | Reassignment |
|---|---|---|---|---|
| 1718 | UDP | H.323 | Between the server and H.323 endpoint | no |
| 1719 | ||||
| 1720 | TCP | |||
| 52000-52499 | Via Technical Support | |||
| 5060 | UDP, TCP | SIP | Between the server and SIP device | yes |
| 52500-52999 | UDP, TCP | BFCP | Used for sharing content with SIP endpoints | Via Technical Support |
| 50000-51999 | UDP | RTP | Between the server and H.323 / SIP endpoints or RTSP client | yes |
| 554 | TCP | RTSP | Between the server and CDN or RTSP client | no |
| 53000-55000 | UDP, TCP | SRTP | Required for WebRTC. Between the server and user’s web browser | yes |
Outgoing network ports for TrueConf solutions
TrueConf Server may require outbound ports to enable additional services listed below. All the indicated ports can be closed; they don’t influence video conferencing services operating via TrueConf protocol.
| Port | Transport | Protocol | Direction | Reassignment |
|---|---|---|---|---|
| 4310 | TCP | trueconf | To the registration server reg.trueconf.com (required for license verification). | no |
| 443 | HTTPS | To the registration server reg.trueconf.com (required for push notifications). | no | |
| 4308 | TCP | trueconf | This port is needed to run your TrueConf Server instance in federation with TrueConf Online cloud-based service. It is not required for federation between different TrueConf Server instances. | no |
| 5060 | UDP, TCP | SIP | To SIP devices, PBX, MCU | yes |
| 3478 | TCP, UDP | STUN/TURN | Required for WebRTC. To STUN/TURN servers | no |
| 1935 | TCP | RTMP | Required for the conference streaming (Youtube, Wowza, CDNvideo, Facebook) | no |
| 25 or 465 | TCP | SMTP | For sending emails. To the SMTP server | yes |
Ports to synchronize with the LDAP server
| Port | Transport | Protocol | Direction | Reassignment |
|---|---|---|---|---|
| 389 | TCP | LDAP | Between the server and LDAP server | yes |
| 636 | TCP | LDAPS | Secure connection to LDAP server | |
| 3268 | TCP | LDAP | Between the server and Microsoft Global Catalog | |
| 3269 | TCP | LDAPS | Secure connection to Microsoft Global Catalog | |
| 53 | UDP | DNS | Required for DNS | no |
TrueConf Server Control Panel
TrueConf Server Control Panel enables administrators to manage the server from any device on the corporate network.
Please make sure that the firewall of the server allows connection through the port used by TrueConf Server сontrol panel.
Web TCP Port (control panel port) and Database TCP Port (database port) are specified during TrueConf Server installation. By default the ports are 80 and 5432 respectively, however other available ports may also be selected. You can change Web TCP Port without reinstalling the server.
Media data exchange with client applications
By default, the exchange of media (audio and video) between the server and client application is delivered through the TCP port 4307. But you can change it in the settings of TrueConf Server сontrol panel (tab Network → Network Settings) to another TCP port of your choice. This port is also used for file transfer in chats.
Please note that client applications should be downloaded from the guest page of your server. If you have changed the port value on the server after the installation of client applications, all client applications need to be reconfigured manually to use new server address and port.
Slideshow
Slideshows will be sent to the address and port specified in the External address of TrueConf Server web block of the Web → Settings section. So if HTTPS connection has been configured on the server side, an HTTPS port (443 is selected by default) is used for slideshow; otherwise a Web TCP port is used (80 is selected by default).
Connection between TrueConf Server and a registration server
A connection of your TrueConf Server machine to our registration server is established through the TCP port 4310 after entering a registration key on the registration page of TrueConf Server.
If the server is behind a firewall, you need to grant access to the Internet through the port 4310 (proxy is not supported).
TrueConf Server Free requires a persistent connection to the registration server through the port 4310.
This port cannot be reassigned. The full version of TrueConf Server does not require this port.
Push notifications
TrueConf Server should be connected to the registration server reg.trueconf.com via the port 443 to make sure that push notifications can be received on TrueConf applications for mobile devices (iOS/iPadOS, Android).
There is no need to create additional configurations for FQDN (domain name) or external IP address.
Interoperability with devices over SIP and H.323
TrueConf Server users can make calls to PSTN, PBX users or other endpoints that support SIP. SIP does not transmit any data, this protocol serves as a gatekeeper to establish connection between two devices. This protocol provides signaling, registration and session initiation. These actions are carried out through the port 5060 (TCP, UDP). If the port is closed, the devices cannot establish a connection. If required, you can change it manually in TrueConf Server control panel settings (in the Gateways → SIP tab).
H.323 endpoints are registered on TrueConf Server through the port 1720 (TCP), and the ports 1718 (UDP) and 1719 (UDP) are used for signaling and session initiation.
The H.323 standard is used by H.323 endpoints and consists of at least two standards – H.225 and H.245. Port 1720 is used by H.225 and port multicast 1718 is used by a broadcast query when searching for a gatekeeper within the local network. H.245 uses the range of TCP ports 52000-52499.
You must allow a port value to range from 50000 to 51999 (UDP) to enable TrueConf users to exchange media data with SIP and H.323 subscribers. You can also change it in the Gateways → RTP section of the server control panel.
Before opening these ports, make sure that the data transmitted between a server and an endpoint through these ports will be transferred over your network.
How to connect to WebRTC conference in your browser
For correct operation of WebRTC application the website is required to have an HTTPS certificate. The WebRTC standard uses random UDP or TCP ports from 53000 to 55000 by default, but you can change it in the server control panel if necessary. You will need to open this range in NAT for successful WebRTC operation.
How to open a port?
Refer to your OS or network equipment documentation, or contact a network technician.
In TrueConf Server 4.5.0 or older, different port ranges were used. Check this article for more details.
