Yealink T46S Phone Manual

The Yealink T46S is a high-performance SIP VoIP desk phone featuring a 4.3-inch color LCD screen, 12 programmable line keys, dual Gigabit Ethernet ports, PoE support, HD audio with wideband codecs, integrated Bluetooth, Wi-Fi capability (optional), USB port for expansion, and support for advanced UC features. 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. Advanced Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Color LCD display, Handset, Base unit, Ethernet ports, Power adapter port, USB port, Headset jack.

Feature	Description
Display	4.3-inch color TFT LCD with capacitive touch
Line Keys	12 programmable SIP line/feature keys
Network Ports	Dual Gigabit Ethernet (LAN/PoE & PC)
Audio	HD handset and speakerphone with Opus, G.722
Wireless	Integrated Bluetooth, optional Wi-Fi module
Expansion	USB port for Bluetooth/Wi-Fi dongle or USB headset
Headset Jack	3.5mm port for wired headset connection
Power	IEEE 802.3af PoE or external power adapter
Firmware	Field upgradable via web interface or TFTP
Protocols	SIP, TLS, SRTP, IPv6

Installation

Unpack and inspect contents. Place on stable surface.

Connect Network: Use Ethernet cable to connect LAN/PoE port to switch/router. For PoE, ensure switch supports 802.3af.
Connect PC (Optional): Use second Ethernet cable from PC port to computer for pass-through.
Connect Power: If not using PoE, plug power adapter into DC 5V port and wall outlet.
Connect Handset: Plug coiled handset cord into handset jack.
Connect Headset (Optional): Plug into 3.5mm headset jack.

WARNING! Use only Yealink-approved power adapter. Ensure cables are not pinched or damaged.

First-Time Setup

Power on phone; follow on-screen prompts.

Network Boot: Phone will attempt to obtain IP via DHCP. Check IP address on screen or press Menu > Status.
Configure SIP Account: Via web interface (enter IP in browser) or phone menu: Menu > Accounts > Edit.
Set Language: Press Menu > Settings > Basic Settings > Language.
Set Time & Date: Configure via NTP or manually in Settings.
Test Call: Make a test call to verify audio and registration.

CAUTION! Keep phone away from direct heat sources and liquids.

Specifications

Display: 4.3-inch TFT, 480 x 272 pixels, capacitive touch.
Network: Dual 10/100/1000 Mbps Ethernet, IEEE 802.3af PoE.
Audio Codecs: Opus, G.722, G.711, G.729, iLBC, etc.
Bluetooth: v4.2, support for headsets and mobile connectivity.
USB: 2.0 host port for expansion modules.
Power Supply: 5V DC, 1.2A or PoE (Class 2).
Operating Temp: 0°C to 40°C (32°F to 104°F).
Supported Protocols: SIP (RFC 3261), TLS, SRTP, IPv4/IPv6.
Dimensions: 220mm x 190mm x 75mm (W x D x H).

Controls and Settings

Access settings via touch screen Menu or physical keys.

Physical Keys: MUTE, HEADSET, SPEAKERPHONE, NAVIGATION pad, VOLUME, HOLD, TRANSFER, CONFERENCE, MESSAGE, REDIAL.

Touch Screen: Home screen with lines, contacts, call history. Menu for Settings, Features, Directory.

Settings Menu: Accounts, Audio (handset, speaker, ringtone), Display (brightness, backlight), Network (IP, VLAN), Features (Call Forward, DND, BLF).

Web Interface: Advanced configuration via browser at phone's IP address (default admin/admin).

Connecting Devices

Network: LAN port to switch. PC: PC port to computer. Headset: 3.5mm jack. Bluetooth: Pair via Menu > Bluetooth.

Turn off phone before connecting wired accessories.
For Wi-Fi: Insert compatible USB Wi-Fi dongle into USB port, configure via Menu > Network > Wi-Fi.
For USB Headset: Plug compatible USB headset into USB port.

Tip: Use quality Ethernet cables (Cat5e or higher) for Gigabit performance.

Advanced Features

Supports advanced UC features via SIP server.

BLF (Busy Lamp Field): Program keys to monitor extension status.
Call Park/Retrieve: Park call and retrieve from another phone.
Intercom: Configure for automatic speakerphone answer.
Music on Hold: Upload audio files via web interface.
XML Directory: Integrate with corporate directory.
Multi-Platform: Supports BroadSoft, Metaswitch, Asterisk, 3CX.
Recording: One-touch call recording (server-dependent).
Hot Desking: Log in with personal account on shared phone.

WARNING! Advanced features require proper server configuration. Consult administrator.

Accessibility Features

High-Contrast Display: Adjust in Display settings. Audio: Adjustable ring and talk volume. Hearing Aid Compatible (HAC): Handset meets FCC standards. Visual Alerts: Flashing LED for missed calls.

Care & Cleaning

Unplug power before cleaning. Use slightly damp, lint-free cloth for screen and body. Do not use solvents or abrasives.

CAUTION! Never spray liquids directly on phone. Avoid extreme temperatures.

Regulatory Information

FCC Part 15 & 68: Complies with rules for digital devices and telephone equipment. CE, RCM, UKCA marked. Hearing Aid Compatible. This device may not cause harmful interference and must accept any interference received. For support, visit www.yealink.com or contact your service provider.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power/PoE issue	Check power adapter connection; ensure PoE switch is on and provides sufficient power.
No network	Cable/DHCP	Check Ethernet cable; reboot phone; verify DHCP server is reachable.
No audio	Volume/codec	Adjust volume; check audio settings; verify codec negotiation with server.
Not registering	Account settings	Verify SIP server address, username, password; check network firewall.
Screen unresponsive	Touch calibration	Restart phone; perform touch calibration via Menu > Settings > Display.
Bluetooth not pairing	Distance/mode	Ensure headset is in pairing mode and within 1 meter; restart pairing.

Reset: Press and hold OK key during boot for factory reset (erases all settings).

Service: Contact your VoIP service provider or visit www.yealink.com for firmware and documentation.