Yealink SIP T53W Manual

The Yealink SIP T53W is a high-performance, multi-line color IP phone designed for business environments. It features a 4.3-inch color LCD with capacitive touch, support for up to 12 SIP lines, integrated dual Gigabit Ethernet ports with PoE support, HD voice, built-in Bluetooth, Wi-Fi capability, and compatibility with leading 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 ports, Power adapter, Handset cord, Network cable.

Feature	Description
Display	4.3-inch color TFT LCD with capacitive touch (480 x 272 pixels)
Network Ports	Dual Gigabit Ethernet (LAN & PC) with PoE (802.3af)
Wireless	Built-in Wi-Fi (802.11a/b/g/n/ac) and Bluetooth 4.2
Audio	HD voice (wideband audio), built-in speakerphone, hearing aid compatible (HAC)
Lines/Accounts	Supports up to 12 SIP lines/accounts
Expansion	Optional sidecar module (EXP50) for additional line keys
Power	PoE (802.3af) or external 12V DC power adapter
Headset Port	EHS (Electronic Hook Switch) compatible headset port
Programmable Keys	5 context-sensitive soft keys, 3 dedicated keys (Mute, Headset, Speaker)
Firmware	Field upgradable via web interface or TFTP

Installation

Unpack and inspect contents. Place on stable surface.

Connect to Network: Use Ethernet cable to connect LAN port to your network switch/router. For PoE, ensure switch supports 802.3af.
Connect PC (Optional): Use second Ethernet cable from PC port to your computer.
Connect Handset: Plug handset cord into handset port on base unit.
Connect Power: If not using PoE, connect the 12V DC power adapter to the DC IN port and wall outlet.
Connect Headset (Optional): Plug into headset port for hands-free operation.

WARNING! Use only the provided power adapter. Ensure all connections are secure before powering on.

First-Time Setup

Power on phone; follow on-screen prompts.

Network Boot: Phone will attempt to obtain IP address via DHCP. Note the IP address displayed on screen.
Access Web Interface: From a computer on the same network, enter the phone's IP address into a web browser.
Configure SIP Accounts: Navigate to Account > Basic, enter SIP server, username, password, and display name provided by your service provider.
Set Language & Time: In Settings > Basic, set language (default English) and configure NTP server for correct time.
Test Call: Lift handset or press Speaker key and dial a number to verify connectivity.

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

Specifications

Display: 4.3-inch color TFT LCD, capacitive touch, 480 x 272 resolution.
Network: Dual 10/100/1000 Mbps Ethernet ports, PoE (802.3af), Wi-Fi 802.11a/b/g/n/ac, Bluetooth 4.2.
Protocols: SIP (RFC3261), TCP/IP, UDP, RTP, RTCP, HTTP/HTTPS, DNS, DHCP, NTP, TFTP.
Audio Codecs: G.711 (A/µ-law), G.722, G.729A/B, G.726, Opus, iLBC.
Power Supply: 100-240V AC, 50/60Hz input; 12V DC, 0.5A output or PoE.
Operating Environment: Temperature: 0°C to 40°C (32°F to 104°F), Humidity: 10% to 90% non-condensing.
Dimensions: 220mm (W) x 185mm (D) x 170mm (H).
Weight: Approximately 1.2 kg (2.65 lbs).

Controls and Settings

Access settings via touch screen menu or web interface. Front Panel: Touch screen, 5 soft keys, Mute, Headset, Speaker, Volume keys, Navigation ring.

Key Functions: MUTE toggles microphone; HEADSET switches to headset mode; SPEAKER activates speakerphone; VOLUME adjusts handset/speaker/ringer volume; NAVIGATION ring scrolls menus.

Web Interface Settings: Account configuration, Network (Wi-Fi, VLAN), Audio (codec, gain), Features (call forward, DND, BLF), Security (admin/user passwords). Phone Menu: Settings for ringtones, screen saver, language, call history, contacts.

Connecting Devices

Network: LAN port to switch (PoE or external power). PC: PC port to computer. Headset: Standard 3.5mm jack. Expansion: EXP50 module to side port.

Turn off phone before connecting additional devices.
For Wi-Fi: Go to Settings > Network > Wi-Fi, select network, enter password.
For Bluetooth: Go to Settings > Bluetooth, pair with headset or mobile device.
For EXP50: Attach module to left side of phone; it auto-detects.

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

Advanced Features

Supports advanced PBX features and call management.

Call Handling: Hold, transfer (attended/blind), conference (3-party), park, pickup.
Call Forward: Set always, busy, no answer rules per line.
Do Not Disturb (DND): Activate via DND key or menu; set schedules.
Busy Lamp Field (BLF): Monitor status of colleagues; speed dial with EXP50.
Directory: Local phonebook; sync with LDAP or corporate directory.
Call Recording: Start/stop recording via soft key (if supported by PBX).
XML Applications: Push custom web content (weather, alerts) to screen.

WARNING! Configure advanced features through web interface for best results.

Accessibility Features

Hearing Aid Compatible (HAC) handset. Visual alerts (LED, screen flash) for incoming calls. Adjustable ringtone volume and frequency. Large font option in display settings.

Care & Cleaning

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

CAUTION! Do not spray liquids directly on phone; avoid getting moisture into openings.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. CE, RCM, UKCA marked. Hearing Aid Compatibility: Meets FCC HAC standards (M3/T3). 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; verify PoE switch is enabled; try different outlet.
No network connectivity	Cable/DHCP	Check Ethernet cable; restart phone and router; verify DHCP server is active.
No dial tone	SIP account	Verify SIP account credentials and server address; check firewall settings.
One-way/no audio	Network/Codec	Check NAT/firewall configuration; ensure compatible codec negotiated.
Touch screen unresponsive	Calibration	Restart phone; recalibrate touch screen via Settings > Basic > Screen.
Cannot access web interface	IP address/credentials	Confirm phone IP address; use default admin credentials (admin/admin).

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

Firmware Upgrade: Download latest from Yealink website; upload via web interface (Maintenance > Upgrade).

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