Yealink Phone T46S Manual

The Yealink T46S is a high-end IP phone featuring a 4.3-inch color LCD with capacitive touch, 12 programmable line keys, dual Gigabit Ethernet ports, built-in Bluetooth and Wi-Fi (optional), HD audio, wideband codec support, PoE compatibility, and integration with major IP-PBX platforms. 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: 4.3-inch color touch screen, Handset, Base unit, Ethernet cables, Power adapter, Quick start guide.

Feature	Description
Display	4.3-inch TFT color LCD with capacitive touch (480 x 272 pixels)
Line Keys	12 programmable SIP line/feature keys with multi-color LEDs
Networking	Dual Gigabit Ethernet ports (LAN and PC), PoE (802.3af)
Wireless	Built-in Bluetooth 4.2, optional Wi-Fi module (802.11a/b/g/n)
Audio	HD handset and speakerphone, wideband codecs (Opus, G.722)
Expansion	Supports up to 2 Yealink expansion modules (T4X)
Headset Port	3.5mm headset jack for wired headset connection
USB Port	USB 2.0 port for firmware upgrade or Bluetooth dongle
Conference	Built-in 3-party conference bridge
Security	SRTP, TLS, 802.1X, secure boot

Installation

Unpack and inspect contents. Place on stable surface.

Connect to Network: Use Ethernet cable to connect LAN port to switch/router. Use PC port to connect computer if needed.
Power the Phone: Use included power adapter or Power over Ethernet (PoE).
Connect Handset: Plug handset cord into dedicated port on base.
Connect Headset: Plug 3.5mm headset into headset jack if required.

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. For static IP, press OK > Settings > Basic > Network.
Provisioning: Enter server URL for automatic configuration (via TFTP/HTTP/HTTPS) in Settings > Advanced > Auto Provision.
Account Registration: Go to Settings > Account > SIP Account to enter SIP server, username, password.
Time & Language: Set time zone and language in Settings > Basic > Time & Language.

CAUTION! Do not disconnect power during firmware upgrade.

Specifications

Display: 4.3-inch color TFT LCD, capacitive touch.
Network Interfaces: Dual 10/100/1000 Mbps Ethernet, PoE 802.3af.
Wireless: Bluetooth 4.2, optional Wi-Fi 802.11a/b/g/n.
Audio Codecs: Opus, G.722, G.711, G.729, iLBC, etc.
Protocols: SIP (RFC3261), TLS, SRTP, IPv4/IPv6.
Power Supply: 100-240V AC, 50/60Hz; 12V DC, 1.5A.
Operating Temperature: 0°C to 40°C (32°F to 104°F).
Supported Platforms: BroadWorks, Asterisk, 3CX, Skype for Business, etc.

Controls and Settings

Access menu via touch screen or physical buttons. Front Panel: Mute, Headset, Speakerphone, Volume keys, Navigation pad.

Touch Screen: Home screen with status, call history, contacts, features. Swipe for additional screens.

Basic Settings: Network, Account, Time, Language, Ringtone. Advanced Settings: Security, VPN, QoS, BLF, Call Features. Audio Settings: Handset volume, speaker volume, microphone gain, acoustic fence. Display Settings: Brightness, contrast, screensaver, wallpaper.

Connecting Devices

Network: LAN port to switch; PC port to computer. Bluetooth: Pair headset via Settings > Basic > Bluetooth. Wi-Fi: Insert Wi-Fi module, configure via Settings > Advanced > Wi-Fi.

Turn off phone before connecting expansion modules or USB devices.
Match cables to ports (Ethernet to LAN, handset to handset port).
For PoE, ensure switch supports 802.3af and provides sufficient power.

Tip: Use shielded Ethernet cables in environments with high EMI.

Advanced Features

Supports advanced call handling and productivity features.

Call Park: Park call and retrieve from another phone.
BLF (Busy Lamp Field): Monitor status of colleagues via programmable keys.
Call Recording: Start/stop recording via softkey or programmable key (server dependent).
Intercom: Configure for automatic answer with speaker.
Hot Desking: Log into shared phone with personal credentials.
XML Browser: Display custom XML applications (weather, directory).
Expansion Modules: Connect T4X modules for additional programmable keys.
VPN: Configure IPsec or OpenVPN for secure remote registration.

WARNING! Advanced features may require PBX/server support.

Accessibility Features

High Contrast Mode: Enable in Settings > Display. Audio Guidance: Audible feedback for key presses. Large Font: Adjust font size in Display settings. Hearing Aid Compatible (HAC): Handset meets FCC HAC requirements.

Care & Cleaning

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

CAUTION! Avoid getting moisture into openings. Do not spray directly on phone.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. ICES-003: Complies with Canadian EMI standards. RCM: Complies with Australian communications standards. CE: Conforms to European EMC and safety directives. For support, visit www.yealink.com or contact your authorized Yealink distributor.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power adapter/PoE	Check power adapter connection; try different PoE switch port; verify cable.
No network	Cable/DHCP	Check Ethernet cable; reboot router; verify DHCP server is running.
No registration	Account settings	Verify SIP server address, username, password; check firewall settings.
No audio	Handset/network	Check handset cord; adjust volume; verify codec compatibility with server.
Touch screen not responsive	Calibration	Restart phone; recalibrate touch screen in Settings > Display.

Reset: Press and hold OK key during boot for factory reset (use caution).

Service: www.yealink.com/support; contact your system administrator or distributor.