TrueConf Group Guide

# Terminal management via RS232 and API

The TrueConf Group terminal provides management capabilities not only through the remote control and web interface but also via text commands (Command Line Interface) through both the physical RS232 port and remotely via the SSH protocol.

To test terminal management using commands, you can use specific software depending on the operating system: PuTTY for Windows OS, and the minicom utility for Linux OS.

This feature also enables the seamless integration of TrueConf Group into room management systems (such as TrueConf Coordinator), allowing you to display terminal control buttons on a tablet interface.

# RS-232

You can use the RS-232 port to send control commands to the terminal. To do this:

  1. In the control panel, go to the RS-232 Interfaces section, and on the General tab, set a password for connecting to the RS-232 API, or leave it as default.

  2. Connect the computer to the codec using an RS-232 cable.

  3. Go to the USB 1 tab, select Role from the dropdown list, choose the RS-232 API option, and configure the port settings:

    /docs/group/media/rs232_params/en.png

    • Speed (bit/s) - the number of bits transmitted per second (bit/s) or the number of signal changes per second.

    • Data bits - the number of bits that encode a single transmitted character (letters, numbers, etc.).

    • Parity is an error detection method used in data transmission by adding an extra bit to each data unit.

      - <interface ru="Нет" en="None"/> - the default value, no additional bit is added.

- <interface ru="Чет" en="Even"/> - The number of all bits set to 1 in each character is calculated, and if necessary, an additional bit of 1 or 0 is added to ensure the total count is even.

- <interface ru="Нечет" en="Odd"/> - the number of all 1s in each character is counted, and if necessary, an additional bit of 1 or 0 is added to ensure the total count is odd.

- <interface ru="Маркер" en="Mark"/> - an additional bit 1 is added to each character.

- <interface ru="Пробел" en="Space"/> - an additional bit 0 is added to each character.

    • Stop bit - an additional bit that indicates where one character ends and the next begins. The more stop bits there are, the "longer the pause" between characters.

    • Flow control is a type of data flow management that allows for stopping and resuming data transmission if the receiving device cannot process the information in time.

      - <interface ru="Нет" en="None"/> - default value, flow control is disabled.

- <interface all="Xon / Xoff"/> is a software flow control method where the device sends special characters Xoff (Ctrl+S, code 0x13) and Xon (Ctrl+Q, code 0x11).

- <interface ru="Аппаратное" en="Hardware"/> - a hardware control type that uses additional contacts in the connector. When controlled via RS-232, the device sends signals through special contact #4 RTS (Request To Send) and #5 CTS (Clear To Send).

  • Connect to the codec via SSH as shown in the SSH section.

  • Execute the listdevice command to display a list of connected devices. In the Available serial devices header, locate id=ttyUSB0 (most often 0). In this case, the connected RS-232 port is called ttyUSB0.

  • Execute the command setdevice serial ttyUSB0. If successful, the output should be: Serial port "ttyUSB0" selected successfully.

The methods for executing commands differ depending on the OS:

  • For Windows OS, use a special program like PuTTY and similar tools.

  • For Linux OS using the minicom utility.

# SSH

# How to connect

By default, ability to authorize in the CLI of TrueConf Group via SSH is limited by the settings of the endpoint operating system. After three unsuccessful authorization attempts (entering an incorrect password), the ability to connect is blocked. To unblock it, you need to restart the endpoint or its OS.

Step 1. To connect to the terminal from the command line, you must first set the access key on the device from which you will connect to TrueConf Group:

  1. In the control panel, navigate to the Settings → Maintenance → Permissions → SSH section.

  2. Click the Download new access key button.

  3. Move the downloaded id_rsa key to the folder:

    • In Windows OS, by default: C:\Users\Username\.ssh

    • In Linux OS by default: \Username\.ssh

Step 2. Now you need to connect from an SSH client. Use the login tcgsh:

  1. Install (if you have not done it before) and run an SSH client; for example, you can use the OpenSSH package or any other. In many operating systems, it is available out of the box; for example, on Windows 10, you just need to run the following command:
ssh tcgsh@[group_ip]

where [group_ip] is the IP address of your endpoint.

2. The TrueConf Group CLI welcome text will appear. You can now enter any supported commands:

user@debian:~$ ssh tcgsh@10.160.2.55
tcgsh@10.160.2.55's password: 
Welcome to TrueConf Group Management Shell 2.0
(tcg cli)

Commands sent to the terminal are not case-sensitive. For example, you can enter the command as HELP, help, or Help.

To view the list of commands, type HELP.

To view information about the specific command [command], run [command] HELP.

The parameters (if they are present) have to be specified separated by a whitespace, for example, the command

CALLHISTORY 10

will list 10 most recent entries from the call history.

# Commands

# ABOOK

Add a contact to the address book.

Parameter Description
ADD [NAME] [PROTO]:[ADDRESS] Add a contact to the address book, where: NAME is the display name, PROTO is the protocol (sip, h323, rtsp, vnc, ndi), ADDRESS is the address used for the call. Example command: ABOOK ADD ALEX sip:10.110.2.240
DEL [NAME] Delete the contact with the specified name

# ANSWER

Accept an incoming call

Parameter Description
VIDEO Accept an incoming call if auto-answer is disabled for it. This can be verified in the control panel under Settings → Calls → Call reception.

# AUDIOCODEC

Enable or disable the audio codec.

Parameter Description
[CODEC] ON Enable the audio codec [CODEC]
[CODEC] OFF Disable the audio codec [CODEC]
[CODEC] GET Get the current state of the codec [CODEC]
GET Get the current state of all audio codecs

To view the list of all codecs supported by the endpoint, check the section "TrueConf Group features".

# AUDIOMUTE

Microphone control.

Parameter Description
ON Mute microphone
OFF Unmute microphone
GET Get the current state of the microphone
REGISTER Receive notifications about the changes in the microphone state. If the moderator mutes/unmutes the microphone, the corresponding notifications will be displayed in the console.
These messages will be displayed only in the current SSH connection until they are disabled with the command UNREGISTER.
UNREGISTER Disable microphone state notifications

# AUTOANSWER

Settings for automatic call pick-up.

Parameter Description
YES Automatically accept the first incoming call. Equivalent to setting the Accept automatically option in Settings → Call → Call reception
NO Disable auto-answer for incoming calls. Equivalent to setting the Ask for user's confirmation option in Settings → Call → Call reception
DND Block incoming calls; all will be automatically rejected. Equivalent to setting the Do not disturb option in Settings → Calls → Call reception
GET Retrieve the current setting for call auto-reception

# CALLINFO

Get information about the current call

The command will display information about one or multiple connections (if the MCU feature is used). The CallID parameter is the identifier of a call and is used in other commands. Here is how this command works:

TCG console>CALLINFO  
Active calls:  
CallID: "8"  
&nbsp;&nbsp;&nbsp;&nbsp;Direction: Outgoing  
&nbsp;&nbsp;&nbsp;&nbsp;Contact URI: "sip:222@example.com"  
&nbsp;&nbsp;&nbsp;&nbsp;User agent: "TrueConf Server 5.4.5.10072"  
&nbsp;&nbsp;&nbsp;&nbsp;Duration: 230 sec  
&nbsp;&nbsp;&nbsp;&nbsp;Bitrate: "1008"  
Audio in: Compression: "G.722.1C (32 kbit/s)", Bitrate: "32", Packets: "11304", Lost packets: "0", Loss rate: "0%", Jitter: "30"  
Audio out: Compression: "G.722.1C (48 kbit/s)", Bitrate: "48", Packets: "11301", Lost packets: "0", Loss rate: "0%", Jitter: "10"  
Video in: Codec: "H264", Bitrate: "960", Resolution: "1280x720", Frame rate: "27", Packets: "35495", Lost packets: "0", Lossrate: "0%", Jitter: "11%"  
Video out: Codec: "H264", Bitrate: "960", Resolution: "1280x720", Frame rate: "30", Packets: "39959", Lost packets: "0", Lossrate: "0%", Jitter: "2%"

# CALLHISTORY

Get call history

Parameter Description
N The number of the most recent calls to be displayed; by default, N is equal to 5

# CAMERA

PTZ camera control

Parameter Description
LEFT, RIGHT, UP, DOWN Rotate the camera left, right, up, or down respectively
ZOOM+, ZOOM- Zoom in or zoom out the image
STOP Stop camera movement
POSITION SAVE [n] Save the current camera position (preset) as number [n]
POSITION LOAD [n] Move the camera to the position (preset) number [n]
POSITION CLEAR [n] Delete the camera position (preset) number [n]

You can verify the correct camera settings in the terminal control panel under the Settings → Devices → Camera section.

# CAMERAMUTE

Camera video stream control

Parameter Description
ON Disable the video stream from the camera
OFF Enable the video stream from the camera
GET Get the current camera state
REGISTER Subscribe for notifications about the changes in the camera state (on/off): corresponding notifications will be displayed in the console.
These messages will be displayed only in the current SSH connections up until the moment when they are disabled with the command UNREGISTER.
UNREGISTER Disable camera state notifications

# CONTENT

Content sharing management. The content source must be selected in advance using the remote control or on the Conference tab of the control panel.

Parameter Description
GET Display the current status of content sharing
PREVIEW Enable content preview without sending content to the conference
REGISTER Receive notifications about the changes in the state of content sharing on the endpoint side
SHARE Start content sharing during a conference
STOP Stop content sharing

# CORETEMP

Get the endpoint CPU temperature.

Command and response example:

(tcg cli) CORETEMP
CPU temperature: +50.0°C

# DIAL

Call to a user

Parameter Description
URI Make a call to the specified URI

Then, depending on your actions, the following notifications will be displayed:

# DTMF

Send a DTMF code CODE to the user with ID [CallID]. The code consists of digits and usually ends with #.

Parameter Description
[CallID] The call identifier needed for sending the command. If at the moment, when the command is sent there is only one connection with the endpoint, this parameter can be omitted.
CODE A sequence of DTMF characters that should be sent to a user. The special `Р` character adds a 100ms pause.

When the code has been sent, the corresponding notification will be displayed, for example, the code 111# has been sent to the user with the ID 272:

(tcg cli) DTMF 272 111#
DTMF code passed successfully

# HANGUP

End a call.

Parameter Description
VIDEO [CallID] End connection with the ID [CallID]. The value of the call identifier[CallID] is displayed when connection is established, for example, check this notification: Outgoing call
ALL End all connections

Command result example:

TCG console>hangup video 266
Hangup the video call [266] passed
TCG console>
Hangup call [266]:
        Name:"Room"
        Contact URI:"h323:room@video.company.com:1720"
        Protocol:"H.323"

# HOSTNAME

Get or set the system name.

Parameter Description
SET [NAME] Set the system name. When you set the name, the corresponding message will be displayed.
GET Display the system name

How to get the name or set a new one:

(tcg cli) hostname get
System hostname:"TrueConf Group"
(tcg cli) hostname set New name
Hostname "New name" set successfully

# IP

Get the IP address of TrueConf Group.

Parameter Description
ADDRESS Display the IP address of TrueConf Group
ROUTE Display the routing table

The result of the IP ADDRESS command:

(tcg cli) ip address
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether fc:34:97:67:62:5f brd ff:ff:ff:ff:ff:ff
    inet 10.160.2.55/22 brd 10.160.3.255 scope global noprefixroute dynamic eth0
       valid_lft 22589sec preferred_lft 22589sec
    inet6 fe80::d2c4:ad3a:e4f8:b569/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

The result of the IP ROUTE command:

(tcg cli) ip route
default via 10.160.0.1 dev eth0 proto dhcp metric 100 
10.160.0.0/22 dev eth0 proto kernel scope link src 10.160.2.55 metric 100

# LAYOUT

Management of the video layout in a group conference when using the MCU function or in a point-to-point call if self-view is displayed (i.e., when the layout consists of 2 video windows). For more information on layouts, refer to the "Managing Layouts" section of the user documentation.

Parameter Description
EQUAL Set the layout with video windows that are equal in size
TOP Set the layout with an enlarged video window displayed on top
BOTTOM Set the layout with an enlarged video window displayed in the bottom
LEFT Set the layout with an enlarged video window displayed on the left
RIGHT Set the layout with an enlarged video window displayed on the right
AUTO Set an automatic layout
GET Get the type of the current layout

# LISTDEVICE

Get the list of available audio and video devices connected to the endpoint.

Parameter Description
Without any parameters Display information about all audio and video devices
AUDIO Get the list of all audio devices connected to the endpoint
AUDIO CAPTURE Get the list of all audio capture devices connected to the endpoint
AUDIO RENDER Get the list of all audio playback devices connected to the endpoint
VIDEO Get the list of all video devices connected to the endpoint
VIDEO CAPTURE Get the list of all video capture devices connected to the endpoint
VIDEO RENDER Get the list of all video playback devices (monitors) connected to the endpoint
SERIAL Get the list of connected serial ports. It can be used for identifying external USB-RS232 adapters connected to the endpoint

If any of the commands is used, the identifier will be displayed for each of the devices in the id parameter. One can use it to run other commands needed for working with devices, for example, when it is necessary to select a device SETDEVICE.

How to get the list of all audio and video devices:

(tcg cli) listdevice

Available audio capture devices:
         id="1", "Line in", active:False, default:False, level:100%, boost:0, aec:0, agc:False, noise suppressor:False
         id="2", "HDMI1", active:False, default:False, level:100%, boost:0, aec:0, agc:False, noise suppressor:False
         id="3", "HDMI2", active:False, default:False, level:100%, boost:0, aec:0, agc:False, noise suppressor:False
         id="4", "eMeet M2 [USB Audio]", active:True, default:False, level:100%, boost:0, aec:0, agc:False, noise suppressor:False
Available audio render devices:
         id="1": "Display port", active:False, default:False, level:86%
         id="2": "HDMI", active:False, default:False, level:52%
         id="3": "Line out", active:False, default:False, level:17%
         id="4": "eMeet M2 [USB Audio]", active:True, default:False, level:4%
         id="5": "All outputs", active:False, default:False, level:50%
Available video capture devices:
         id="1": "Clevermic 1212U/HD Camera", video:1280x720@60.01
         id="2": "HDMI1/MZ0380:RAW 00.00 12abf55f", video:1920x1080@0.0
         id="3": "HDMI2/MZ0380:RAW 01.00 12abf55f", video:1920x1080@0.0
         id="4": "USB/file", video:1920x1080@25.0
Available video render devices:
         id="1": "BenQ GL2460", port: HDMI", active:True

# MULTIPOINT

MCU functionality settings.

Parameter Description
ON Enable MCU functionality
OFF Disable MCU functionality
GET Display the current status of MCU functionality

# PROTOCOL

SIP and H.323 settings.

Parameter Description
PROTOCOL SIP [ON/OFF] Enable/disable SIP
PROTOCOL H323 [ON/OFF] Enable/disable H.323
PROTOCOL SIP SRTP [ON/OFF/MANDATORY] SRTP encryption settings for SIP calls: ON — encryption is recommended, but not required; OFF — encryption is not used; MANDATORY — the endpoint will not be connected to the endpoints that do not support SRTP
PROTOCOL H323 H235 [ON/OFF/MANDATORY] H.235 encryption settings for H.323 calls: ON — encryption is recommended but required; OFF — encryption is disabled; MANDATORY — the endpoint will not be connected to the endpoints that do not support H.235
PROTOCOL SIP GET Display the current status of SIP protocol
PROTOCOL H323 GET Display the current status of H.323 protocol
PROTOCOL SIP SRTP GET Display the current status of SRTP encryption for SIP calls
PROTOCOL H323 H235 GET Display the current status of H.235 encryption for H.323 calls

It is impossible to disable both SIP and H.323 at the same time. If one of them is disabled, and a user tries to disable the second one, the former will be automatically activated.

# REBOOT

Restart TrueConf Group.

The command is similar to clicking the Restart OS button in the Settings → Power → Power management section of the terminal control panel.

This command is executed right after being sent without any preliminary confirmation request (unlike a similar action in the control panel).

# RCKEY

Send the code of the button on the remote control to execute the corresponding command as if the button were physically pressed.

Parameter Description
KEY Remote control button key. Possible values: 0..9, *, #, HOME, BACK, MENU, OK, LEFT, RIGHT, UP, DOWN, DIAL, BACKSPACE, HANGUP, PC, FARNEAR, LAYOUT, ZOOM+, ZOOM-, VOL+, VOL-, POWER

Example of the command for zooming in the image from the PTZ camera connected to the endpoint:

(tcg cli) rckey zoom-
RCKEY passed successfully

# SELFVIEW

Set the mode for displaying the self-view on the endpoint screen (this configuration will not affect the way in which the self-view will be displayed in the layout).

Parameter Description
ON Display the local self-view
OFF Hide the local self-view
TOGGLE Toggle the self-view (hide when visible or display when hidden)
GET Get the self-view state

# SETDEVICE

Select the device for capturing or playing media streams and content sharing.

The commands listed below use the DeviceId parameter which is the device identifier. This identifier can be obtained with the command LISTDEVICE.

Parameter Description
AUDIO CAPTURE [DeviceId] Select the audio capture device DeviceId
AUDIO RENDER [DeviceId] Select the audio playback device DeviceId
VIDEO CAMERA [DeviceId] Select the device DeviceId for capturing the primary video stream (as a camera)
VIDEO PRESENTATION [DeviceId] Select the device DeviceId for capturing the secondary video stream (content)
SETDEVICE VIDEO PRIMARY [DeviceId] Select the monitor for displaying the primary video stream
SETDEVICE VIDEO SECONDARY [DeviceId] Select the monitor for displaying the secondary video stream
VIDEODUAL ALL Turn on the second monitor
VIDEODUAL OFF Turn off the second display
VIDEODUAL MIRROR Duplicate the video from the main display on the second monitor
VIDEODUAL PRESENTATION Display the secondary stream (shared content) on the second monitor

# SHUTDOWN

Shutdown TrueConf Group.

The command is equivalent to pressing the Shut down the endpoint button in the Settings → Power → Power management section of the terminal control panel.

This command is executed right after being sent without any preliminary confirmation request (unlike a similar action in the control panel).

# SPEAKERMUTE

Audio playback settings.

Parameter Description
ON Turn off audio playback
OFF Turn on audio playback
GET Get the audio playback state
REGISTER Subscribe for notifications about the changes in the state of audio playback (on or off): corresponding notifications will be displayed in the console.
These notifications will be received only in the current SSH connection up until the moment when they are turned off with the command UNREGISTER.
UNREGISTER Disable notifications about the changes in the state of audio playback

# VIDEOCODEC

Enable or disable the video codec.

Parameter Description
[CODEC] ON Enable the video codec [CODEC]
[CODEC] OFF Disable the video codec [CODEC]
[CODEC] GET Get the current state of the codec [CODEC]
GET Get the current state of all video codecs

To view the list of all codecs supported by the endpoint, check the section "TrueConf Group features".

# VIDEOMIXER

Set the stream mixing mode for a multi-point connection (MCU).

Parameter Description
VIDEOLESSON The video lesson mode in which the participants can see and hear only the moderator (the person using the endpoint is acting as the moderator). In the meantime, the participants can hear each other.
ALL ”All on screen” mode in which all participants can see and hear each other
ACTIVESPEAKER Voice activation mode in which everyone can see and hear each other and the participant, speaking at the moment is displayed in the spotlighted window

# VOLUME

Volume settings

Parameter Description
UP Increase volume
DOWN Decrease volume
GET Display the current volume level in the console (specified as a percentage)
REGISTER Subscribe for notifications about the changes in the volume level (up or down): the notifications event: volume up and event: volume down will be displayed in the console.
These notifications will be displayed only in the current SSH connection up until the moment they are disabled with the command UNREGISTER.
UNREGISTER Disable notification about the changes in the volume level

It is also possible to change the volume level with the commands RCKEY VOL+ and RCKEY VOL-.

# WAKEON

Managing TrueConf Group power via a LAN port using Wake-on-Lan (WoL) (opens new window) technology.

Parameter Description
[MODE] WoL operation mode:
p – wake-up via PHY;
u – wake-up on unicast messages;
m – wake-up on multicast messages;
b – wake-up on broadcast messages;
g – wake-up on MagicPacket messages.
OFF Disable WoL technology
GET Retrieve WoL status

# WHOAMI

Display information about TrueConf Group.

Command result example:

(tcg cli) whoami
Information about the system:
    Display Name:"TrueConf Group"
    Serial Number:"TCG01B9209863"
    License Type:"permanent"
    Software version:"1.1.0.470"
    IP address:"10.160.2.55"
    MAC:"FC:34:97:67:62:5F"
    SIP:"sip:10.160.2.55"
    H323:"h323:10.160.2.55"
    H323 Gatekeeper:""
    SIP Server:""
    H323 Name:""
    H323 Extension:""
    Display information:
      Name:""
      Connected:"True"
      Active:"True"
      Mode:"3840x2160@30.0 [30.0]"

# Notifications

# audiomute off

The microphone has been unmuted.

# audiomute on

The microphone has been muted.

# cameramute off

The camera has been turned on.

# cameramute on

The camera has been turned off.

# outgoing content stream started

TrueConf Group has started content sharing in the secondary stream during a call or conference.

# outgoing content stream stopped

TrueConf Group has ended content sharing.

# Dial failed

The call has ended before it could be received (e.g., by timeout).

# Hangup call

The notification displayed when the call with a certain user is ended. Please note that ID [259] is the value of the call identifier [CallID] displayed when running commands CALLINFO and HANGUP. It is also displayed in the notification Incoming call, Outgoing call.

For example:

Hangup call [259]:
    Name:"Jhon Doe"
    Contact URI:"h323:doe@10.110.2.240:1720"
    Protocol:"H.323"

# Incoming call

The notification displayed when:

  • An incoming call is made (in this case, the word ringing will also be included)

  • An incoming call is answered (in this case, the word confirmed will be included).

Please note that ID [260] in the examples below is the value of the call identifier [CallID]. This ID will also be displayed when running commands CALLINFO and HANGUP. Additionally, it will be displayed in the notifications: Outgoing call, Hangup call.

Example of a notification about an incoming call that has not been answered yet:

Incoming call [260], ringing:
    Name:"Joe Smith"
    Contact URI:"h323:111@video.example.com:1720"
    Protocol:"H.323"
    User agent:"TrueConf Gateway 4.3"

An example of a notification displayed when a call is answered:

Incoming call [260] confirmed:
    Name:"Joe Smith"
    Contact URI:"h323:111@video.example.com:1720"
    Protocol:"H.323"
    User agent:"TrueConf Gateway 4.3"

# Outgoing call

The notification displayed when:

  • When a call is made from the endpoint, the word ringing will be included;

  • When a user answers a call from the endpoint, the word confirmed will be included.

Please note that ID [259] in the examples below is the value of the call identifier [CallID]. This ID will be displayed when running commands CALLINFO and HANGUP. It will also be displayed in the notifications Incoming call, Hangup call.

Example of a notification about an outgoing call that has not been answered yet:

Outgoing call [259], ringing:
    Name:"111"
    Contact URI:"h323:111@10.110.2.240:1720"
    Protocol:"H.323"
    User agent:""

An example of a notification displayed when a call is answered:

Outgoing call [259] confirmed:
    Name:"111"
    Contact URI:"h323:111@10.110.2.240:1720"
    Protocol:"H.323"
    User agent:"TrueConf Gateway 4.3"

# speakermute off

The audio playback device has been turned on.

# speakermute on

The audio playback device has been turned off.

# REST API

TrueConf Group supports OAS3 — the OpenAPI version 3 (opens new window) specification.

/docs/group/media/api_docs/en.png

# API Access

Go to Settings → Maintenance → Permissions → API to restrict API access:

  1. Enter your Username and Password.

  2. Click Apply.

You can now connect to TrueConf Group via REST API using the provided credentials.

If you have forgotten your password, click Reset and enter the new information.

# Capabilities

With the help of the API, you can:

  • view and edit the address book;

  • make calls;

  • manage connected equipment;

  • configure;

  • manage network settings;

  • restart the OS, shut down, or reboot the terminal;

  • configure time and NTP;

  • create SSH keys;

  • configuration and management of a connected tablet;

  • and much more.

# API Support

The REST API documentation is integrated into the TrueConf Group terminal. To access it, go to https://{IP}/api/v1/doc, where {IP} is the terminal's IP address, for example, 10.110.2.220/api/v1/doc. The documentation is also available at https://developers.trueconf.ru/group/api/.

If you have any questions about the product or API, you can ask them in our Telegram community.

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