# Receiving and making calls
Outside video sessions, the endpoint can have one of the following statuses:
switched to sleep mode;
displays the main screen, shows the image from the main camera, and can record or broadcast video;
Playing content from HDMI sources
Any incoming video call disables such statuses.
# Processing Incoming Calls
If the administrator has configured automatic call acceptance, the TrueConf Group terminal will automatically answer the call. However, if the Do not disturb mode is enabled, the call will be automatically declined.
However, if the Ask for user’s confirmation mode is selected, a call notification and sound alert will appear on the main monitor. You can accept the call by pressing the call button 
on the remote control or by answering the call in the control panel.
On a terminal with the MCU function activated, you can accept subsequent calls, turning the current call into a conference. To do this, simply accept incoming calls using the remote control or control panel just like the first call, or set up automatic acceptance of subsequent calls.
# How to call another endpoint/device
# How to make calls via SIP, H.323, RTSP, VNC and NDI
Use the address book to call frequently used numbers.
In the main menu, select Contacts (or press the call button on the remote
).In the Dialer tab, enter the address of the device you want to call, such as
111@10.120.1.10.
For a SIP or H.323 terminal, you may choose not to specify a protocol. In this case, TrueConf Group will first attempt to call using one protocol and then the other. The protocol priority is determined in the settings.
To connect to an RTSP stream (such as an IP camera or online broadcast), or a VNC or NDI source, make sure to specify the required format at the beginning of the address, for example, rtsp://10.120.1.10, or select the desired protocol from the dropdown list.
3. Press Call on the screen or the button on the remote control.
You can call back to this device from the Recent section in your contacts if needed.
# Call a user
To call a TrueConf Server user, use one of the following formats:
<TrueConf_ID>@<server><TrueConf_ID>@<server>:<port>
where:
<TrueConf_ID>: user's TrueConf ID<server>: server IP address or name that you need to call<port>: connection port (if it differs from standard5060for SIP and1720for H.323). Read more about SIP/H.323 connection settings on TrueConf Server in our documentation.
For example:
james@video.company.com
james@video.company.com:5070
# Call in a TrueConf conference
If you are registered on the same server via SIP or H.323, you don't need to specify the server address; simply entering the conference number is sufficient and is the recommended method. To join a videoconference hosted on the TrueConf server, use the call string in one of the following formats:
00<Conference_ID>@<server>00<Conference_ID>@<server>:<port><Conference_ID>@<server><Conference_ID>@<server>:<port>
, where:
<Conference_ID>: Conference ID<server>: Server IP address or name<port>: Connection port (if different from the standard one)
For example:
001949195144@video.company.com
001949195144@video.company.com:1730
\c\1949195144@video.company.com
\c\1949195144@video.company.com:1730
If necessary, you can explicitly specify the call protocol (SIP or H.323) to the left of the address input field.
# Viewing Call Information
During a video call, you can view its technical data. To do this, press the 
button on the panel and select Connection information from the menu that appears. You will see a list of current call parameters, including:
User's address
Call duration
Used codecs
Video resolution and speed
Packet loss statistics for audio and video streams. In this case, the last 10 seconds rather than the entire call are used to calculate the loss percentage.
If the MCU mode is activated on your TrueConf Group, you can switch between the statistics windows for each participant using the “left” and “right” buttons on the control panel:
# How to Set Up a Group Conference
To conduct group conferences on TrueConf Group, ensure that your configuration includes an MCU module and that the MCU function is enabled in the settings.
To set up a conference, you need to call any user following the above instructions and then add other participants one by one.
# Adding users during a session
In the conference menu, click 
, and the Contacts window will open. You can now add a participant from any contact section.
