Installation Guide
Tools Needed:
- Network cable (Ethernet)
- Power adapter (if not using PoE)
- Handset and cord
- Screwdriver (if wall mounting)
- Network switch with PoE support
Step-by-Step Installation
- Unpack and Inspect: Remove all packaging materials and verify all components are present (phone, handset, stand, cables).
- Connect Network Cable: Connect one end of the Ethernet cable to the LAN port on the phone and the other end to your network switch or router.
- Power Connection: If using PoE (Power over Ethernet), ensure your switch supports PoE. Otherwise, connect the power adapter to the phone and power outlet.
- Connect Handset: Plug the handset cord into the handset port on the phone and ensure it's securely connected.
- Power On: Press the power button or wait for PoE to activate. The phone will boot up and display the startup screen.
- Network Configuration: The phone will attempt to obtain an IP address via DHCP. For static IP, configure through web interface.
- Account Configuration: Configure SIP accounts through the phone's web interface or auto-provisioning server.
- Test Functionality: Make test calls to verify audio quality and all features are working properly.
Specifications
| Model Series | T54S / T53 |
| Type | IP Business Phone |
| Color | Black / White |
| Display | 4.3" 480x272 color LCD |
| Supported Protocols | SIP, TLS, SRTP |
| Network Interfaces | Dual Gigabit Ethernet ports (10/100/1000 Mbps) |
| Power Supply | PoE (802.3af) or DC 12V/0.5A |
| Audio Codecs | G.711, G.722, G.729, Opus |
| HD Voice | Wideband audio support |
| Dimensions (HxWxD) | 215 x 210 x 65 mm (with stand) |
| Weight | 1.1 kg |
| Operating Temperature | 0°C to 40°C |
| Humidity | 10% to 90% non-condensing |
Warranty Information
- Full Warranty: 2 years parts and labor
- Extended Support: Firmware updates for 5 years
- Additional Coverage: Optional extended warranty available
For warranty service, contact Yealink Customer Service at 1-800-985-0626 or visit Yealink.com
Key Features
HD Voice Quality
Yealink's advanced audio technology delivers crystal-clear HD voice quality with wideband audio support for natural-sounding conversations.
4.3" Color Display
Large color LCD with intuitive user interface provides easy access to contacts, call history, and phone settings with excellent visibility.
Dual Gigabit Ports
Built-in dual Gigabit Ethernet ports allow for daisy-chaining to a computer, eliminating the need for an extra network drop.
PoE Support
Power over Ethernet (802.3af) support simplifies installation by delivering both power and data through a single Ethernet cable.
Advanced Security
Comprehensive security features including TLS, SRTP, and HTTPS encryption protect your communications from eavesdropping.
Bluetooth Support
Built-in Bluetooth allows for wireless headset connectivity and mobile phone integration for enhanced mobility.
Call Management Features
Call Transfer
Blind, attended, and semi-attended call transfer options for efficient call handling
Conference Calling
Support for 3-party conference calls directly from the phone
Call Forwarding
Multiple forwarding options including unconditional, busy, and no answer
Call Recording
One-touch call recording with local storage or network upload options
Do Not Disturb
Flexible DND settings with schedule options and exception lists
Busy Lamp Field
Visual status monitoring of colleagues for efficient call routing
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Phone won't power on | Power issue, faulty PoE, defective power adapter | Check power source, try different PoE port, test with power adapter |
| No dial tone | Network issue, SIP account not registered | Check network connection, verify SIP account credentials |
| Poor audio quality | Network congestion, codec mismatch, hardware issue | Check network QoS, verify codec settings, test with headset |
| Display issues | Loose connection, firmware issue, hardware defect | Check display cable, update firmware, contact support |
| Cannot access web interface | Network settings, firewall blocking, incorrect IP | Verify IP address, check firewall settings, reset to factory |
| One-way audio | NAT/firewall issues, SIP ALG enabled | Disable SIP ALG on router, configure proper NAT settings |
Common Error Messages
- No Service: SIP registration failed - Check account credentials and network
- Network Unavailable: Network connection issue - Check Ethernet cable and switch
- Invalid Password: Authentication failure - Verify SIP account password
- Provisioning Failed: Auto-provisioning issue - Check provisioning server URL
- Memory Full: Storage capacity exceeded - Delete old recordings or logs
- Upgrade Failed: Firmware update issue - Check file integrity and try again
Manual Downloads
Current Model Manuals
T54S
Executive IP Phone
T53
Business IP Phone
T53W
Wireless IP Phone
T54W
Executive Wireless
Popular Previous Models
T46S
Advanced IP Phone
T42S
Value IP Phone
T41P
Essential IP Phone
T29G
Entry IP Phone