Yealink Phone Manual MP56

The Yealink MP56 is a modern IP conference phone designed for medium to large meeting rooms, featuring full-duplex speakerphone technology, HD audio quality, support for multiple VoIP accounts, a large color LCD display, Bluetooth connectivity, USB recording, and advanced acoustic features like noise suppression and echo cancellation. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. Conference Calling 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Full-duplex speakerphone with HD audio, Color LCD display, Ethernet port, Bluetooth module, USB port, Headset jack, Volume controls, Microphone array.

Feature	Description
HD Voice	Wideband audio for crystal-clear conversations
Full-Duplex Speakerphone	Simultaneous talk and listen without cut-off
Color LCD Display	3.5-inch screen for call information and menus
Bluetooth	Connect mobile devices or wireless headsets
USB Port	For recording calls or firmware updates
Ethernet Port (PoE)	Network connection with Power over Ethernet support
Microphone Array	360° voice pickup with noise suppression
Headset Jack	For private listening with wired headset
Volume Controls	Separate controls for speaker, microphone, and ringer
Conference Call Keys	Dedicated buttons for managing multi-party calls

Installation

Unpack and inspect contents. Place on stable conference table.

Connect to network: Use Ethernet cable to connect phone to PoE switch or router.
Power the phone: Use included power adapter or PoE (if supported by network).
Connect optional devices: Plug headset into headset jack; connect USB device if needed.
Position microphone: Ensure clear path to all participants.

WARNING! Use only Yealink-approved power adapter. Ensure proper ventilation around device.

First-Time Setup

Power on phone; follow on-screen prompts.

Network configuration: Phone will attempt DHCP; manually configure if needed via web interface.
Account registration: Enter SIP server details provided by your VoIP service provider.
Set language: In Settings menu, select preferred language (default: English).
Adjust audio settings: Configure microphone sensitivity, speaker volume, and ringtone.
Test call: Make a test call to verify audio quality and connectivity.

CAUTION! Keep firmware updated for optimal performance and security.

Specifications

Audio Codecs: G.722, G.711, Opus, G.729.
Display: 3.5-inch color LCD with 320x240 resolution.
Network: 10/100/1000 Mbps Ethernet with IEEE 802.3af PoE.
Bluetooth: Version 4.2 with HSP/HFP/A2DP/AVRCP profiles.
USB: USB 2.0 port for recording and storage.
Microphone: Omni-directional array with 5-meter pickup range.
Power Supply: 100-240V AC, 50/60Hz or PoE.
Operating Temperature: 0°C to 40°C (32°F to 104°F).
Supported Protocols: SIP, TCP/IP, UDP, RTP, SRTP, TLS.

Controls and Settings

Access menu via physical buttons or web interface. Front Panel: MUTE, VOLUME UP/DOWN, NAVIGATION PAD, CONFERENCE, TRANSFER, HOLD, SPEAKERPHONE.

Web Interface: Access via IP address for advanced configuration (default password: admin).

Audio Settings: Microphone gain, speaker volume, echo cancellation, noise reduction. Network Settings: Static/DHCP, VLAN, QoS. Account Settings: SIP registration, call forwarding, voicemail. System Settings: Language, time zone, firmware upgrade, factory reset.

Connecting Devices

Network: Ethernet cable to PoE switch. Bluetooth: Pair mobile devices or headsets. USB: Connect flash drive for call recording.

Turn off phone before connecting wired accessories.
Pair Bluetooth devices via Settings > Bluetooth > Add Device.
Format USB drive as FAT32 before use for recording.

Tip: Use shielded Ethernet cables in environments with electrical interference.

Conference Calling

Supports multi-party conference calls with up to 8 participants.

Make initial call: Dial first participant and establish connection.
Add participants: Press CONFERENCE button, dial next number, press CONFERENCE again to merge.
Manage conference: Use MUTE to silence your microphone; use VOLUME to adjust speaker.
Drop participants: Navigate to participant list, select participant, choose "Remove."
Record conference: Insert USB drive, press RECORD during call (if enabled).
End conference: Press SPEAKERPHONE or hang up to end call for all participants.

WARNING! Ensure all participants are in quiet environments for optimal audio quality.

Accessibility Features

Visual Alerts: Flashing LED for incoming calls. Audio Adjustments: Separate volume controls for ringer, speaker, and microphone. Hearing Aid Compatible: Meets FCC requirements for hearing aid compatibility.

Care & Cleaning

Unplug before cleaning. Use slightly damp cloth for display; dry cloth for body. Do not use abrasive cleaners.

CAUTION! Avoid liquids near ports and openings. Do not disassemble device.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. CE, RCM, UKCA marked. Hearing Aid Compatibility: Meets FCC HAC requirements. For support, visit www.yealink.com or contact your local distributor. Copyright © Yealink Network Technology Co., Ltd.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No dial tone	Network/Power	Check Ethernet connection; verify PoE or power adapter is working.
Poor audio quality	Network/Microphone	Check network bandwidth; adjust microphone sensitivity; ensure noise reduction is enabled.
Cannot register to SIP server	Account settings	Verify SIP credentials and server address; check firewall settings.
Bluetooth not connecting	Pairing mode/distance	Ensure phone is in pairing mode; move device closer (within 10 meters).
USB recording not working	Drive format/permissions	Format drive as FAT32; check if recording is enabled in settings.

Reset: Press and hold MUTE button for 10 seconds during power-up for factory reset.

Service: www.yealink.com/support; contact authorized service center.