Yealink SIP T46S Manual

The Yealink SIP T46S is a high-performance, color-screen IP phone designed for business environments, supporting SIP protocol, HD voice, dual Gigabit Ethernet ports, PoE, Bluetooth, Wi-Fi (optional), USB recording, 12-line keys with expansion capability, a 4.3-inch color LCD, and advanced features like call recording, call park, and XML applications. 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 Call Features 8. Accessibility Features 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Color LCD screen, Handset, Base unit, Ethernet ports, Power adapter, Handset cord, Network cable.

Feature	Description
HD Voice	Wideband audio for crystal-clear calls
Dual Gigabit Ethernet Ports	For PC connection and network daisy-chaining
Power over Ethernet (PoE)	IEEE 802.3af compliant for simplified power
Bluetooth	For wireless headset connectivity
Wi-Fi (Optional)	Wireless network connectivity via USB adapter
USB Port	For call recording to USB flash drive
12 Line Keys	With expansion module support (up to 36 keys)
4.3-inch Color LCD	480 x 272 pixel resolution with adjustable angle
XML Browser	For custom web applications and directories
Headset Port	3.5mm jack for wired headset

Installation

Unpack and inspect contents. Place on stable, flat surface.

Connect to Network: Use Ethernet cable to connect LAN port to switch/router. Use PC port to connect a computer.
Power the Phone: Use included power adapter or PoE from switch.
Connect Handset: Plug handset cord into phone base and handset.
Optional: Connect headset to 3.5mm jack or pair Bluetooth device.

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

First-Time Setup

Power on phone; follow on-screen prompts.

Network Boot: Phone will attempt to obtain IP via DHCP automatically.
Check Network Status: Press OK, go to Status > Network to verify IP address.
Configure SIP Account: Press OK, go to Account > Account X to enter server, username, password provided by your IT admin or service provider.
Test Call: Make a test call to verify audio and registration.

CAUTION! Handle handset cord gently to avoid damage to connectors.

Specifications

Display: 4.3-inch TFT color LCD, 480 x 272 pixels.
Network Interfaces: Dual 10/100/1000 Mbps Ethernet ports with integrated PoE.
Protocols: SIP (RFC3261), TCP/IP, UDP, RTP, RTCP, HTTP, HTTPS, DNS.
Audio Codecs: G.711, G.722, G.729, G.726, Opus, iLBC.
Expansion: Supports up to two EXP40 expansion modules (36 additional keys).
Power Supply: Input: 100-240V AC, 50/60Hz; Output: 5V DC, 1.2A. PoE: IEEE 802.3af Class 2.
Operating Environment: Temperature: 0°C to 40°C; Humidity: 10% to 90% non-condensing.

Controls and Settings

Access menu via OK button or dedicated keys. Front Keys: MUTE, HEADSET, SPEAKERPHONE, NAVIGATION, VOLUME, HOLD, TRANSFER, CONFERENCE, REDIAL, MESSAGE, CONTACTS.

LCD Soft Keys: Context-sensitive functions appear on screen (e.g., DND, Call Park, Record).

Basic Settings: Press OK > Settings for Time, Language, Ring Tones, Screen Saver. Account Settings: Configure SIP parameters, Call Features (Call Waiting, Forwarding). Network Settings: Static/DHCP IP, VLAN, QoS. System Settings: Admin password (default: admin), Upgrade, Restore, Reboot.

Connecting Devices

Network: LAN port to network, PC port to computer. Peripherals: Headset to 3.5mm jack, USB flash drive for recording, optional Wi-Fi adapter, Bluetooth headset.

Power off phone before connecting peripherals (except hot-pluggable USB).
For Bluetooth: Go to Settings > Bluetooth > Discover and pair device.
For Expansion Module: Connect EXP40 to phone's EXP port before powering on.

Tip: Use Cat5e or better Ethernet cables for Gigabit performance.

Advanced Call Features

Supports standard and advanced PBX features.

Make Call: Lift handset or press SPEAKERPHONE, dial number.
Answer Call: Lift handset, press SPEAKERPHONE, or press corresponding line key.
Hold: Press HOLD button during active call.
Transfer: Press TRANSFER, dial target number, press TRANSFER again to complete.
Conference: During a call, press CONFERENCE, dial second party, press CONFERENCE again to merge.
Call Recording: Press Record soft key during call (requires USB flash drive).
Call Park: Press Park soft key to park call; retrieve from another phone by dialing park code.
Directory: Press CONTACTS to access local and LDAP directories.

WARNING! Do not disconnect USB drive during recording to avoid file corruption.

Accessibility Features

Visual Alert: LED indicators for missed calls/messages. Audio Adjustments: Independent volume controls for handset, speaker, ringer, headset. High-Contrast UI: Adjustable screen brightness and contrast in Settings > Display.

Care & Cleaning

Unplug power before cleaning. Use slightly damp, lint-free cloth. Do not use abrasive cleaners or sprays.

CAUTION! Keep liquids away from the phone. Do not disassemble the unit.

Regulatory Information

FCC Part 15: Class A digital device; complies with limits for business use. CE, RCM, UKCA marked. Contains FCC ID: 2AJMT-02660. This device may not cause harmful interference and must accept any interference received. For support, visit www.yealink.com or contact your authorized Yealink distributor.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power/no display	Power/PoE issue	Check power adapter connection; verify PoE switch is enabled; try different outlet.
No dial tone	Network/SIP account	Check Ethernet cable; verify SIP account is registered (Status > Account).
One-way/no audio	Network/QoS settings	Check router QoS settings for SIP/RTP; disable SIP ALG on router.
Can't hear caller	Volume settings	Adjust handset/speaker volume; check MUTE status.
Bluetooth not pairing	Distance/compatibility	Ensure device is in pairing mode and within 10 meters; check compatibility list.

Reset: Press OK > Settings > Advanced (password: admin) > Maintenance > Reset.

Service: Contact your service provider or visit www.yealink.com/support.