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Mike Swanson 6942827391 sync: auto-sync from Mikes-MacBook-Air.local at 2026-07-09 14:52:07 
Author: Mike Swanson
Machine: Mikes-MacBook-Air.local
Timestamp: 2026-07-09 14:52:07
2026-07-09 14:52:17 -07:00

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Yealink Management Cloud Service(YMCS)_User Guide.pdf - Pages 361-380

Source: Yealink Management Cloud Service(YMCS)_User Guide.pdf Pages: 361-380 of 953 Chunk: 19

Yealink Management Cloud Service(YMCS) U...

Start Diagnosing Prerequisites The device status needs to be online.

Procedure

  1. Sign in to YMCS.

  2. Do one of the following to diagnose the device. Click Room Device > Alarm > Alarm List, and click Diagnosis on the right of the desired device.

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Click Room Device > Device > Device List, and click Diagnosis on the right of the
desired device.

Diagnosing Methods Export the Packets, Logs, and Configuration Files by One Click Introduction You can use the one-click export feature to export the packets, logs, and configuration files of one or multiple devices at the same time and get information from them to locate and analyze problems with the devices.

Prerequisites The device owner sets the one-click export request as Allowed; if the device owner sets the request as Unauthorized, you need to wait for the device owner's consent after each request you initiate.

Procedure

  1. On the device diagnostics page, click One-Click Export.
  2. Set parameters and click Export. For more information about packet strings, see commonly used packet strings.

💡 NOTE You can enter the string only when you select Customize from the drop-down menu of the Capture Type. Besides, if you do not enter the string, the system will capture all the data packets.

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  1. Diagnosis begins.

💡 NOTE If the device owner sets the one-click export request as Allowed, you can start immediately. If the device owner sets the request as Unauthorized, you need to wait for the device owner's consent before starting.

  1. Please contact the device owner to reproduce the steps that cause the issue.

  2. Click Finish.

💡 NOTE If it takes more than 1 hour to capture packets, the packet capturing will be automatically

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   ended.
  1. If the page prompts "Diagnosis completed", it is finished.
  2. You can view and download files in the history list.

FAQ How can I enable the one-click export request for my device? For more information, see device authorization status-general issues.

Capture Packets Introduction You can capture packets and reproduce test scenarios based on these data to locate and analyze problems with the device.

Prerequisites The device owner sets the packet capturing request as Allowed; if the device owner sets the packet capturing request as Asking, you need to wait for the device owner's consent after each request you initiate.

Procedure

  1. On the device diagnostics page, click Packet Capture.

  2. Set parameters and click Packet Capture. For more information about packet strings, see

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commonly used packet strings.

💡 NOTE You can enter the string only when you select Customize from the drop-down menu of the Capture Type. Besides, if you do not enter the string, the system will capture all the data packets.

  1. Diagnosis begins.

💡 NOTE If the device owner sets the packet capturing request as Allowed, you can capture packets immediately. If the device owner sets the packet capturing request as Asking, you need to wait for the device owner's consent before capturing packets.

  1. Please contact the device owner to reproduce the steps that cause the issue.
  2. Click Finish.

💡 NOTE If it takes more than 1 hour to capture packets, the packet capturing will be automatically ended.

  1. If the page prompts "Diagnosis completed", the packet is captured.
  2. You can view and download files in the history list.

FAQ How do I enable the packet-capturing request for the device? 9 / 197 Yealink Management Cloud Service(YMCS) U...

For more information, see device authorization status-general issues.

Export System Logs Introduction The system log records the system operation process and abnormal information. You can export the system log of the device to quickly locate the problems during the system operation.

Procedure

  1. On the device diagnostics page, click Export Log.
  2. Select the device log level, with decreasing severity levels from 0 to 6. The device will store the logs according to the set level. For more information about syslog levels, see syslog levels.
  3. Click Export, and then save the file to your local computer.
  4. When the export is complete, you can view and download the file in the history list.

Export Configuration Files Introduction You can export CFG files or BIN files, where CFG files can choose to export static, non-static or all configuration files.

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Procedure

  1. On the device diagnostics page, click Export Config File.

  2. Set parameters and click Export.

  3. When the export is complete, you can view and download the file in the history list.

Back Up Configuration Files Introduction You can back up the configuration to prevent situations where the configuration files cannot be recovered due to unexpected device damage or other reasons.

Procedure

  1. On the device diagnostics page, click Config Backup.

  2. Select Immediately or Scheduled and click Backup.

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  1. You can view the config backup result from the Execution Record list.
  2. The backup files will be presented in the history list. You can view, push, download, or delete the backup files.

Take Screenshots Prerequisites The device owner sets the screenshot request as Allowed; if the device owner sets the screenshot request as Asking, you need to wait for the device owner's consent after each screenshot request you initiate.

Procedure

  1. On the device diagnostics page, click Screen Capture.
  2. Click Capture.

💡 NOTE If the device owner sets the screenshot request as Allowed, you can take the device screenshots immediately. If the device owner sets the screenshot request as Asking, you need to wait for the device owner's consent before taking a screenshot.

  1. After taking a screenshot, you can click Download; if you click Screen Capture again, it will retake a screenshot and overwrite the current one.

FAQ 12 / 197 Yealink Management Cloud Service(YMCS) U...

How do I enable screenshot requests for my device? For more information, see device authorization status-general issues.

Diagnose Network Procedure

  1. On the device diagnostics page, click Network Detection.

  2. Select any detection method and set the parameters: Ping (ICMP Echo): by sending a data packet to the remote party and requesting the party to return a data packet of the same size, this method can identify whether those two devices are connected. The diagnostic results include a brief summary of the received packets, as well as the minimum, maximum, and average round trip times of the packets. Trace Route: this method records the route from the local device to the remote device. If this test succeeds, you can view the network node and the time taken from one node to the other to check whether or not there is network congestion.

  3. Click Detect.

Remote Control Introduction You can remotely operate the touch screen of the devices and troubleshoot problems through remote control. Due to data security, YMCS only accesses data

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on the touch screen and does not store it during remote control.

Prerequisites You have assigned the pro license to the meeting room. Do one of the following: If your enterprise is located in EU region, please refer to the network requirements of remote control under EU region and open the relevant domain name and port; If your enterprise is located in US region, please refer to the network requirements of remote control under US region and open the relevant domain name and port. If your enterprise is located in AU region, please refer to the network requirements of remote control under AU region and open the relevant domain name and port. If your enterprise is located in UAE region, please refer to the network requirements of remote control under UAE region and open the relevant domain name and port. Supported devices: MVC Series/MeetingBoard/MeetingBar/MeetingEye/DeskVision A24. For MeetingBoard/MeetingBar/MeetingEye, you can simultaneously remote control the host device and its touch screen (requires independent connecting to YMCS). For MVC Series/DeskVision A24, only a single device can be remotely controlled at a time. The device status needs to be online. The remote control feature is enabled. The device owner allows you to remote control. For more information, see device authorization status-general issues.

Procedure

  1. On the device diagnostics page, click Remote Control.

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  1. If the enterprise has assigned the remote control license and the device has not yet been assigned to a conference room, you need to assign it first before further using the remote control function. Create a New Room with Pro License: Create a new room and edit related information such as name, location, capacity, etc. The pro license will be automatically assigned to the created room. Select a Existing Room: Select an existing room. If the room does not have a pro license, a new license will be automatically assigned to it.

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  1. (Optional) If the device has peripheral devices, you can choose to control only the device or control the device and its peripheral devices.
  2. Wait for the terminal to respond, and then start the remote control.

💡 NOTE For Android devices, you need to enter the local administrator password.

  1. Please refer to the user's guide of each device to operate the device and troubleshoot the problem.

💡 TIP Click End in the upper right corner of the interface to end control; in the left navigation bar, click End Control below the device to end control of the device. If you control multiple devices, you can drag and drop windows to change the display ratio of each screen. Hover the mouse over

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    to view the device’s current bandwidth, delay, packet loss and other
    network information.

Remote Access Through remote access, you can enter the Web backend of the device's internal network IP, view and modify all function menu pages, and achieve real-time monitoring of connected sub-devices, configuration effects, and other data for the central control device.

Prerequisites Supported device model for remote access: CT200. The device must already be bound to a meeting room with an Room pro license. Ensure that the network environment requirements for remote access are met based on the enterprise site, and open the relevant domains and ports. The device must be online. Remote access must be enabled on the device System Settings > System > Cloud Service.

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Procedure

  1. On the Diagnose page, click Remote Access.

  2. Wait for the terminal to respond, and you can start remote access.

  3. Refer to the CT200 User Guide to operate.

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💡 TIP Click End Remote access in the upper-right corner of the interface to stop control.

Health Check Introduction Health Check operation supports the one-click quick diagnosis of the device. Based on the diagnosis results, you can perform related operations (such as upgrading, restarting, or restoring factory settings, etc.) with one click to quickly solve problems for the device. The examination includes the following inspection items:

Physical Instruction Exception Supported device models examinat s handling ion suggestions content

Host Check if If an updated Android conference room Version there is an version is equipment, smart screen, official detected, it is MVC series equipment firmware recommended to

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         version that    upgrade the device
         can be          to the latest
         updated.        version

Periphera Check the If there are offline Android conference room ls information accessories, it is equipment, smart screen, Version/ of each recommended to MVC series equipment Status accessory check whether the connected accessory to the host connection is device, normal; if an including: updated version is model, detected, it is firmware recommended to version, upgrade the and online accessory version. status.

Remainin Check If the memory Android conference room g whether usage of the host equipment, smart screen Storage the device reaches the Space remaining threshold set by storage the enterprise, space of the please check and host device stop unnecessary is too low. running tasks.

Memory Check If the memory Android conference room Usage whether usage of the host equipment, smart screen Rate the host device reaches the device threshold set by memory the enterprise,

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            usage is too     please check and
            high.            stop unnecessary
                             running tasks.

CPU Check If the CPU usage of Android conference room whether the host device equipment, smart screen the host reaches the device CPU threshold set by usage is too the enterprise, high. please check and stop unnecessary running tasks.

Prerequisites Only Android conference room devices, MeetingBoard, and MVC series devices support this function. For Android devices, if the version is lower than V31, the (CPU/Memory/Storage) inspection items can not be detected.

Procedure

  1. On the device diagnosis page, click Health Check.

  2. Click Start to check the current health status of the device. Meanwhile, you can click Terminate to stop the examination. 21 / 197 Yealink Management Cloud Service(YMCS) U...

  3. After the test is completed, the interface will display various test results. For abnormal items, please perform corresponding operations according to the prompts and suggestions on the interface.

Supported Diagnosing Methods Diagnostic methods

Device One- Capt Expor Export the Capture Netw Con Rem Models click ure t Configurat the ork fig ote Expo Pack Syste ion Files Screen Detec bac Con

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           rt        ets    m                     shot      tion    kup      trol
                            Logs

Meeting √ √ √ √ √ √ √ Board

VCS √ √ √ √ √ √ √ √ device s（Meet ingBar ）

MVC √ √ devices

RoomCa √ √ √ √ √ st

RoomPa √ √ √ √ √ nel/ RoomPa nel Plus

Frequently Used Rules for Packet Capturing The following are commonly used packet capture strings, which you can apply to device diagnosis according to the actual situation.

String Example Description

host IP host Only see the incoming and outgoing traffic of a 10.81.36.16 specific IP.

Port port 90 Only see the incoming and outgoing traffic of a numbe specific port. r

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Portran portrange Only see the traffic belonging to a specific port ge 21-23 range. value1- value2

tcp tcp port 23 Check who controls the phone via telnet. port 23 and host and 10.81.36.16 host IP .

port 80 / Check the packets of the requests received and the responses sent by your phone web user interface.

net IP/ net Only capture the packet from the resource IP mask 10.91.33.0/ address or the destination IP address. 24

src src host Only capture the packet send by the IP 10.81.36.16. 10.81.36.16

       src port 80     Only capture the packet send by port 80.

       src             Only capture the packet send by the port number
       portrange       from 21 to 23.
       21-23

dst dst host Only capture the packet received by the IP 10.81.36.16 10.81.36.16.

       dst port 80     Only capture the packet received by the port
                       number 80.

       dst             Only capture the packet received by the port
       portrange       number from 21 to 23.
       21-23

and host Both of the objects before or after and. This example

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