Yealink VCH51 User Manual

Lists related documents for the video conferencing system, including Quick Start Guides and User Guides.

Details changes made in different software releases, including new features and updates.

Provides details on the hardware components of various Yealink video conferencing system models.

Explains the meaning of LED indicators on VCS devices, VP59, and other accessories for status.

Covers procedures for powering the system on, off, and understanding the initialization process.

Guides users through the initial system setup wizard for first-time use or after a factory reset.

Details accessing and using the web interface for system configuration, including login and server settings.

Explains how to use the CTP20/CTP18 touch panel for VCS endpoint configuration and call placement.

Describes how to use the physical or virtual remote control to configure the VCS endpoint and place calls.

Explains different types of device licenses, including demo to normal machine conversion.

Details multipoint licenses for specific models, including maximum connections and validity.

Provides instructions on how to import device type or multipoint licenses into the system.

Guides on switching system modes for third-generation VCS devices, noting factory reset implications.

Describes connecting the system directly to the internet for higher audio/video demand.

Covers intranet deployment options like NAT, STUN, H.460, Intelligent Traversal, and VPN.

Explains NAT configuration for addressing communication issues with application-layer protocols.

Details how to configure STUN server for placing calls to extranet VCS systems behind NAT.

Enables H.460 firewall traversal for H.323 calls, ensuring gatekeeper support for the feature.

Describes Intelligent Traversal for easy deployment without complex network configuration.

Guides on configuring VPN using OpenVPN for establishing secure tunnels over public networks.

Details network configuration for cloud deployment, including IPv4/IPv6 and IP addressing modes.

Covers connecting to wireless networks, viewing status, forgetting, and disabling Wi-Fi.

Explains how to configure the wireless access point name, security mode, and password.

Lists connected devices and allows adding them to a blocklist or removing them.

Procedure to disable the wireless access point functionality on the device.

Details how to configure DNS servers for IPv4 and IPv6, including static DNS options.

Explains DHCP options for obtaining network settings and lists supported IPv4 options.

Enables LLDP to exchange device information with connected switches for network discovery.

Guides on manually configuring VLAN for the internet port, requiring VLAN ID from network administrator.

Sets up DHCP VLAN discovery to examine DHCP options for a valid VLAN ID.

Restricts LAN access using 802.1x authentication with various EAP protocols.

Controls whether the VP59's PC port provides network access to connected computers.

Allows setting network speed and duplex modes, which must be supported by the switch.

Specifies network speed and duplex modes for WAN and PC ports.

Limits the range of reserved TCP and UDP ports used for calls to minimize network usage.

Manages bandwidth and delay by configuring DSCP priority for audio, video, and data packets.

Sets the MTU size to optimize data packet transmission and prevent fragmentation or loss.

Enables SNMP to monitor network-attached devices and their configurations.

Configures SIP accounts for voice/video calls and SIP IP calls using accounts or IP addresses.

Enables H.323 protocol for calls, allowing registration of H.323 accounts via gatekeepers.

Integrates with platforms like Yealink VC Cloud, YMS, Zoom, Pexip, BlueJeans, and Videxio.

Enables switching between multiple logged-in video conference platforms for quick access.

Provides instructions on how to log out of the currently active video conference platform account.

Customizes the site name displayed on the status bar and remote screens during calls.

Specifies the display language for the monitor and web user interface.

Enables audible feedback (key tone) when pressing keys on the remote or dial pad.

Manages time and date settings, including time zones, NTP servers, and DST adjustments.

Configures screen saver wait time, uploads custom pictures, and sets system wallpapers.

Customizes the local interface, hiding IP address, time, date, and UI elements in idle screen.

Sets the inactive time before the system enters sleep mode to prevent monitor burn-in.

Enables the endpoint to wake from sleep mode when a display device is connected.

Controls whether the web shows content displayed on the monitor for remote viewing.

Manages the display of icons like title bar, time, mute, camera, recording, and site name during calls.

Sets the audio output type, including auto selection and specific device selection.

Selects the audio input type, including auto selection and specific microphone/line inputs.

Sets the media audio input type to mix audio from sources like computers with microphones.

Optimizes acoustic effects by automatically adjusting EQ based on audio input/output.

Enables Transient Noise Suppressor (TNS) and Noise Barrier to reduce background noise.

Allows customization of system tones, including supported tones and custom formats.

Configures audio and video codecs, including supported types, bit rates, and frame rates.

Configures DTMF keypad, transmission ways (RFC2833, INBAND, SIP INFO), and H.323 protocol.

Configures local meeting layouts for AVC and SVC conferences, including single and dual screen options.

Allows selection of video input sources (camera, PC, or both) for display during calls.

Enables HDMI output on VP59 for displaying video and shared content on an external monitor.

Defines content displayed on the secondary monitor when dual display is connected.

Adjusts display proportion to ensure the entire video image is visible on TV displays.

Specifies maximum frame rate and resolution for local video based on network bandwidth.

Sets the output resolution for HDMI 1 and HDMI 2 display devices.

Enables auto framing based on face detection to adjust camera position and coverage.

Displays and customizes the local site name shown to remote parties during video calls.

Enables H.239 and BFCP for transmitting video and PC content simultaneously during calls.

Synthesizes multiple video streams into one for remote transmission when dual-stream is not supported.

Enables PC presentation, specifies mode, frame rate, and resolution for shared content.

Allows selection, enabling/disabling, and naming of connected cameras.

Displays camera status, model, IP address, firmware, hardware version, and MAC address.

Specifies camera control mode: manual, auto framing, or speaker tracking for optimized views.

Counts up to 30 participants using face detection and allows exporting conference records.

Provides instructions on using navigation keys to pan, tilt, and zoom the camera.

Configures white balance mode (Auto, InDoor, OutDoor, OnePush, ATW, Manual) for optimal color.

Manages exposure compensation, flicker frequency, gain limit, WDR, and photometry.

Enables display of camera names to distinguish multiple cameras connected to the system.

Customizes camera image settings like display mode, saturation, sharpness, brightness, and contrast.

Enables automatic camera focus on moving objects or disables for fixed focal length.

Saves and recalls camera angles and focal lengths for quick camera positioning.

Synchronizes camera presets with the active camera for automatic positioning adjustments.

Permits the far-end system to control the local camera, requiring control protocol enablement.

Enables Far End Camera Control (FECC) for H.323 and SIP calls for remote camera operation.

Allows remote control of the local camera for proper image display on the remote monitor.

Sets default camera layouts for multiple cameras connected to the system.

Restores camera settings to factory defaults, applicable to most VCS devices except VP59.

Configures virtual meeting room 1 in regular mode, including password protection.

Hosts two independent conferences in VMR mode, allowing password protection and MCU allocation.

Provides instructions on how to enter a VMR using IP address, account, or meeting password.

Sets up third-party VMRs like Zoom, BlueJeans, Pexip, or Videxio for quick joining.

Enables selecting the preferred platform (SIP, H.323) for outgoing calls.

Specifies the desired call protocol for placing incoming and outgoing calls.

Sets the maximum video call rate, affecting audio and PC content transmission rates.

Enables adaptive adjustment of resolution and frame rate based on network bandwidth.

Manages account polling to try multiple accounts for calls based on priority.

Determines the initial call interface (Dial, Directory, History, Start Conference) for meetings.

Customizes contact display by hiding unused groups or setting default contact tabs.

Enables inviting participants before initiating a Meet Now conference.

Allows additional audio participants to join when video call limits are reached.

Chooses resources like built-in MCU or server VMR to initiate conferences during P2P calls.

Enables or disables call matching to display search results after entering dialing criteria.

Defines dial plan rules using regular expressions to process keypad inputs for VP59.

Sets the order of priority for searching contacts from History, Directory, Cloud, Enterprise, and LDAP.

Enables SIP IP call proxy to establish connections using SIP accounts when dialing URIs.

Sets timeouts for ringback and auto refuse to manage call handling and automatic call termination.

Allows automatic answering of incoming calls in idle or during-call states.

Mutes the local microphone when calls are automatically answered or dialed out.

Rejects incoming calls automatically and records them in the missed call list.

Allows quick audio calls on CP960 by tapping an Audio Call button.

Add, edit, delete, and search contacts in the local directory.

Accessing and searching Yealink cloud contacts managed via the VC Cloud Management Service.

Accessing and searching YMS contacts managed by the enterprise administrator.

Configuring the system to interface with corporate directory servers supporting LDAP.

Defines common attributes for LDAP searches, such as name, number, and company.

Configures LDAP server address, port, TLS mode, user name, and password for directory access.

Adds IP addresses or accounts to an allowlist for direct conference entry without a password.

Adds IP addresses or accounts to a blocklist to automatically refuse incoming calls.

Configures saving call history and adding records to the local directory.

Provides options to delete single, multiple, or all call records from the history.

Enables placing video or audio calls directly from the call history records.

Guides on placing calls using IP addresses, accounts, or SIP URIs via different interfaces.

Allows editing contact numbers or history records before initiating a call.

Requires authentication for WPP20/touch panel content sharing and whiteboard annotation.

Sets the inactivity period before automatic logout from the web user interface.

Ensures secure communication and message transmission using TLS protocol and cipher suites.

Configures trusted certificates for TLS authentication, including default and custom certificates.

Specifies server certificate types (Default, Custom) for TLS authentication.

Encrypts RTP during SIP calls to prevent interception and eavesdropping using AES.

Encrypts RTP during H.323 calls for identity authentication, data encryption, and integration.

Handles abnormal SIP incoming calls and verifies H.323 incoming calls for communication security.

Provides API for third-party control systems to integrate with and control the video conferencing system.

Sets up authentication and passwords for connecting control systems via LAN or Serial connection.

Enables or disables the CEC feature, allowing remote control of HDMI-connected devices.

Details pairing and using the WPP20 for content sharing, noting device compatibility.

Provides a cost-effective PSTN solution for convenient conference calls with excellent speech quality.

Connects and controls VCC22 cameras for video conferencing systems, noting model compatibility.

Explains pairing and using CPW90-BT microphones as audio input devices.

Allows exporting and importing configuration files for backup, troubleshooting, and quick setup.

Provides steps to reboot the system via web interface or device menus.

Resets system and VP59 SD card to factory configurations to resolve issues.

Details exporting logs to PC, USB drive, or syslog server for troubleshooting phone activities.

Guides on manually upgrading firmware and checking for available updates online.

Displays multipoint license status, including activation, points, and period of validity.

Shows the device type, distinguishing between demo and normal machines.

Addresses common problems like remote control issues, password loss, and time/date errors.

Identifies and resolves issues preventing calls, such as network unavailability or DND settings.

Addresses problems like no audio, muffled audio, or poor voice quality.

Resolves issues like blank monitor, poor video quality, and content sharing failures.

Guides on placing a test call to the Yealink Demo site to verify system installation.

Tools to diagnose audio, camera, and network connectivity issues for troubleshooting.

Provides access to system status lists including network settings, firmware, and device information.

Analyzes call statistics like bandwidth, video/audio codecs, and jitter to diagnose quality issues.