"Conferences" section

In this section, you can schedule video conferences and adjust their settings. Here you can do the following:

  1. Create a new video conference.

  2. Find a conference created before.

  3. Start a conference.

  4. Edit the selected conference.

  5. Create a copy of the selected conference.

  6. Delete a conference.

  7. View information about a particular conference:

    • conference PIN (if set)

    • selected scheduling mode

    • date and time.

8. View a list of invited participants and adjust additional settings for them.

You can create only symmetric conferences where all participants can see and hear each other. The maximum number of participants (up to 150) depends on your license.

When you select an active video conference, you can get access to the monitoring section. More information about the section is provided below.

Creating a conference

Click Create conference to proceed to the conference creation page.

"General" tab

In this section, you can schedule video meetings and adjust their settings. You may have to take the following steps:

  1. Specify the conference name.

  2. Set the conference PIN. In this case, you will be able to dial the PIN either as a DTMF command or in the call string format.

  3. A virtual room is created by default. It is possible to choose between the following scheduling modes:

    • Do not repeat - set scheduled date and time.

    • Daily - set the start time. You can also set the recurrence limit after the number of repetitions or on a specified date.

    • Weekly - set the start time and choose the day(s) of week for repeating the meeting. Setting the recurrence limit is similar to Daily mode.

    • Monthly - choose the recurrence date(s) or days of week

    • Custom - select specific dates for a meeting.

4. If you check the Set time limit box, you will create a scheduled meeting with the start and end date.

5. Select the maximum number of participants.

6. Check the Auto redial box to make sure that participants can be re-invited to the conference if the connection is lost. If the operator of a video conferencing server disconnects a participant on purpose (via web interface), auto dialing will be disabled for this conference session.

7. Enable the display of participants' names during a meeting.

8. Check the box, so meeting participants will automatically be muted upon entry.

9. Check the box, so meeting participants will join the conference with their video disabled.

"Participants" tab

This section enables you to add participants and configure their audio/video devices. It allows you to:

  1. Add a new participant. Users can be selected separately or in bulk. Then, you can view the list of added users.

  2. Find a user by name.

  3. View information about an invited participant.

  4. Enable/disable a participant's camera.

  5. Mute/unmute the microphone.

  6. Enable/disable speakers.

  7. Make sure that a user does not receive video from other conference participants.

  8. Disable automatic redial if the connection is lost.


You can enable automatic redial participant feature for all participants in the General tab on the conference creation page.

9. Remove a participant from the conference.

"Layouts" tab

Here, you can set a conference layout. There are two layout types: for all participants and custom.

For all participants is a standard conference layout displayed to all participants who don't have a custom layout, e.g., it will be displayed to a participant who joined the conference using a PIN.

Custom layout can be configured for any participant when you create a conference or in real time during an ongoing conference. Real-time layout changes apply only for an ongoing conference, so once the meeting ends, the layout will disappear. Every participant can have only one custom layout.

Active speaker is a layout displayed to a participant speaking at the moment. It will be possible to select video windows that will be displayed to the active speaker.


To use the layout, you need to add the Active speaker window to other layouts created for this conference.


We suggest using individual layouts as little as possible during a conference to save server resources.


In the Layouts section, you will be able to:

  1. Create a new layout.

  2. Check the Automatic layout box, if you want the layout to be generated automatically depending on the number of participants invited to a conference.

  3. Specify the conference name.

  4. Select the layout type.

  5. Choose the number of video windows in the layout.

  6. Click Fill windows automatically if you do not want to add participants manually.

  7. Click Reset all windows to set a new layout.

  8. Specify the type of the selected video window. You can select among the following types:

    • Empty: the window will remain empty and will be used for a participant who may be invited during an on-going conference.

    • Fixed participant: one of the participants will be permanently displayed in the selected window.

    • Active speaker: the participant, who is speaking at the moment, will be displayed in the selected window.

    • Autofill: one of the conference participants added automatically will be displayed in the video window.

    • Content: the window will be used for displaying the content shared by participants, e.g., desktop or slides.

9. Check Enable time rotation mode if you want to change a displayed participant in the window every 3 seconds.


This feature is available only for the participants who were added to the layout using the Autofill function.

For the sake of convenience, TrueConf MCU provides a large variety of layouts:

Flexible layouts

You can add any number of video windows in the layout


Predefined layouts

Only a predefined number of video windows can be added in the layout.


“Skins” tab

You can use different color skins for the layouts.


"Additional" tab

In this section, you can change audio and video settings. You can make the following adjustments:

  1. Check Show a volume bar if you want the sound volume indicator to be displayed in video windows.

  2. Select audio codecs used in a conference.

  3. Adjust video stream resolution and frame rate.

  4. Select video scaling mode.

  5. Select video codecs.

  6. To stream a conference to external RTMP sources over the Internet, enter the URL address of an RTMP server.

  7. Select the participant whose layout will be used for recording or streaming. You will be able to select a participant who has been added before. If no participant is selected, the global layout will be captured.

  8. Enable recording when at least one participant joins the conference.

  9. Disable recording when all the participants leave the conference.

  10. Enable users to share slides.


Disabling some codecs can solve compatibility issues with some SIP endpoints. To learn more about this question, please contact our technical support team.

Conference card

When you select a conference from the list , you will see brief information about it:

  • Conference name

  • conference PIN (if set)

  • Number of invited participants

  • Maximum number of participants.

You can also start, edit or delete the selected conference.


Joining a conference

TrueConf users can join a conference hosted on TrueConf MCU using the following call string formats:

1. Via SIP protocol (if its use is enabled):

  • #sip:<pin>@<server_name>, where:

    • <server_name> the DNS or IPv4 address of the PC where TrueConf MCU is installed on.

    • <pin> is a conference PIN.

  • #sip:@<server_name>,<pin>#, where:

    • <server_name> the DNS or IPv4 address of the PC where TrueConf MCU is installed on.

    • <pin> is a conference PIN.

  • #sip:@<server_name>, where:

    • <server_name>the DNS or IPv4 address of the PC where TrueConf MCU is installed on. In this case, a participant has to enter a PIN with the dialer to join a conference.

2. Via H.323 protocol (if its use is enabled):

  • #h323:<pin>@<server_name>, where:

    • <server_name> the DNS or IPv4 address of the PC where TrueConf MCU is installed on.

    • <pin> is a conference PIN.

  • #h323:@<server_name>,<pin>#, where:

    • <server_name> the DNS or IPv4 address of the PC where TrueConf MCU is installed on.

    • <pin> is a conference PIN.

  • #h323:@<server_name>, where:

    • <server_name>the DNS or IPv4 address of the PC where TrueConf MCU is installed on. In this case, a participant has to enter a PIN with the dialer to join a conference.


If a user calls to TrueConf MCU without a PIN (using #h323:@<server_name> or #sip:@<server_name> call string format), he/she will get into the Pending connections column until entering the PIN or being added to the conference by the administrator.

Online video conferences streaming

With TrueConf MCU you can stream your video conferences using popular streaming services: Wowza, YouTube, CDNvideo. More information about setting video conference streaming is provided below.

Wowza Streaming Cloud streaming configuration

  1. Go to Wowza Media Systems https://wowza.com website. If you don't have an account, please sign up.

  2. Open Wowza Streaming Cloud http://cloud.wowza.com/ service webpage. Sign in using the account from the step 1. In the top menu bar, select Add Live Stream and you will see the opened Live Stream Setup section.

  3. Enter the conference name, select the nearest location from the list and click Next.

  4. Complete the following steps in the Video Source and Transcoder Settings section:

    • Select Other RTSP as a camera/encoder.

    • Select Push Stream streaming mode.

    • Check Disable authentication and click Next.

5. In the Playback Settings tab, you can configure the type and size of the web page player, a countdown timer, a background and a logo. You can also leave the default settings unchanged.

6. In the Hosted Page Settings, you can choose if the stream should be placed on the Wowza Streaming Cloud or on a different website. You can also select a title and a logo, provide a short description, and choose the social network icons to be displayed. You can also leave the default settings unchanged.

7. Check settings in the Review Settings section and click Finish and you will the stream page.

8. Copy an RTMP URL from Source Connection Information for MCU in the following format rtmp://<wowza-ip-address>:<host-port>/<application>/<stream-name>, where:

  • <wowza-ip-address> is the IP address of a streaming server.

  • <host-port> is the connection port.

  • <application> is the application name.

  • <stream-name> is the stream name.


    For example, the RTMP link will look like:


9. Click Start Live Stream to start capturing the live video.

10. Start the conference and launch streaming.

11. Go to the stream page on Wowza Streaming Cloud and click Open near the Hosted Page URL address, so you can check the streaming in an opened web page with the broadcast window.

YouTube streaming configuration

  1. Sign into YouTube using your Google account.

  2. Click the /mcu/media/youtube_add_video_button/en.png icon in the right upper corner.

  3. Select Go live and you will see the stream control panel.


If you create a live stream on YouTube for the first time, you will see a channel creation pop-up. Click Get started and you can configure additional parameters (channel name, avatar, description, links to your website and social network accounts). Then, click Go live which appears in the upper right corner of your channel page. You will see a request to confirm your account using your phone number. After confirmation, you will be able to stream within 24 hours.

4. Go to the Stream tab and complete the following steps:

  • Specify stream parameters (name, category, access, type).

  • Select No, it's not made for kids.

5. Click Create stream.

6. On the opened stream page , you can set your own stream key by specifying the maximum bitrate and FPS, or leave the default settings unchanged.

7. Generate an RTMP link for MCU in the rtmp://<stream-url>/<stream-key> format, where:

  • <stream-url> is a streaming URL

  • <stream-key> is a streaming key


    Example of an RTMP link:


8. Start the conference and launch streaming.

9. Please wait until the Go live button on the YouTube stream page becomes available and press it to go live.

CDNvideo streaming configuration

  1. Go to CDNvideo https://www.cdnvideo.com/ website. If you don't have an account, please sign up.


CDNvideo service provides a paid license (available for a two-week free trial). For more information, proceed to CDNvideo pricing web page.

2. Sign in the personal area https://dashboard.cdnvideo.com/. Select Live streaming in the service list.

3. Press player code and encoder configuration in the RTMP-publish section.


If there is no such section, add the RTMP publish feature with the Add service button under the Live streaming service.

4. In the opened Encoder settings and Player code window of the Encoder settings section, select any encoder, e.g. FMLE.

5. Generate an RTMP link for MCU in the rtmp://<stream-url>/<stream-key> format, where:

  • <stream-url> is a streaming URL

  • <stream-key> is a streaming key


    For example, an RTMP link will look like:


6. Start the conference and launch streaming.

7. You can test the stream in the Encoder settings and Player code window from the CDNvideo personal area, in the Player code section by running a video in the Translation : default sector.

Launching a stream on the MCU side

  1. Specify the RTMP streaming address when creating a conference.

  2. Start a conference.

  3. Select the conference you need in the Pending connections section and start streaming with the /mcu/media/mcu_start_stream_button/en.png button. If the broadcast starts successfully, the button will flash red.

Monitoring an active conference

If you click on any active conference held on TrueConf MCU, you can see the conference management window.


In this section, you can view the following information about ongoing conferences:

  • Conference name

  • Number of participants

  • Conference duration

When hovering a cursor over any conference, you can see the /mcu/media/stop_conference/en.png icon to stop the conference.


When you select any meeting from the Conferences list, on the left you can see the control panel that allows you to:

  1. Set the conference layout.

  2. Edit ongoing conference parameters:

    • Conference name

    • PIN

    • The maximum number of conference participants

    • Participant connection parameters (camera/microphone)

3. View the conference information:

  • PIN

  • Duration

  • Start time

  • End time

  • Content sharing permissions.

4. Start/stop conference recording.

5. Send a message to chat.

6. Start/stop slideshow(.png, .jpeg, .bmp, .pdf, .ppt and .pptx formats are supported).

7. Start a conference.

8. Search for conference participants.

9. View information about a conference participant.

10. Enable/disable a video stream from a participant.

11. Mute/unmute a participant's microphone.

12. Enable/disable audio receiving by a participant.

13. Enable/disable video receiving by a participant.


You can also enable/disable receiving and sending audio/video streams for multiple conference participants simultaneuously. Just select them and the device configuration panel will appear at the top of the list.


14. Preview a participant's camera video, shared content or individual layout. You can also request control over the participant's camera.

15. If it is necessary, you can change:

  • Dipslay name(the name showed during a conference)

  • Audio settings (sound volume and microphone sensitivity)

  • Call details (data about incoming and outcoming video streams).

16. Enable Important Participant mode, so the user will be displayed in a larger window.

17. Disconnect a participant from the conference.

18. Redial the disconnected user.

If the disconnected participant isn’t listed in the address book, you can add this user by clicking the /mcu/media/add_icon/en.png icon near the participant’s name.

If a conference participant shares content, you will see the video stream info (FPS, resolution) and the forced stop presentation icon under the participant’s name.


Adding a new participant

You can add new participants to an ongoing conference on the fly.

  1. Search through the lists of users.

  2. Select users from the following lists:

    • Address book contacts — all other users listed in the address book.

    • Busy (in other conference) — users who were invited to the conference, but are currently unavailable because they are taking part in other conferences.

3. Add a user by email address.

4. Add pending users who are waiting for the admin’s approval to join the conference.