Installation Guide
Tools Needed:
- Ethernet cable (Cat5e or higher)
- Power adapter (if not using PoE)
- Network switch with PoE support
- Screwdriver (for wall mounting)
- Network configuration software
Step-by-Step Installation
- Unpack and Inspect: Remove all packaging materials and verify all components are present (phone, handset, power adapter, Ethernet cable).
- Network Connection: Connect the phone to your network using an Ethernet cable. Use port labeled "LAN" on the phone.
- Power Connection: Connect power adapter or ensure PoE is enabled on your network switch for power over Ethernet.
- Handset and Accessories: Connect the handset to the designated port and attach any additional accessories like headsets.
- Power On: Press the power button or wait for the phone to boot up automatically if using PoE.
- Initial Configuration: Follow the on-screen prompts to set language, time zone, and network settings.
- PBX Registration: Configure SIP settings to register with your PBX or VoIP service provider.
- Test Call: Make a test call to verify audio quality and connection stability.
Specifications
| Model Series | T5 Series IP Phones |
| Type | SIP VoIP Telephone |
| Color | Black / White |
| Display | 7-inch color LCD touch screen |
| Network Ports | Dual Gigabit Ethernet (10/100/1000 Mbps) |
| Power Options | PoE (802.3af), AC adapter (optional) |
| Audio Codecs | G.711, G.722, G.729, Opus |
| Supported Protocols | SIP, TCP/IP, UDP, RTP, RTCP, DHCP, DNS |
| Power Requirements | PoE Class 2 or 12V DC, 1.5A |
| Dimensions (HxWxD) | 240 x 210 x 160 mm |
| Weight | 1.2 kg |
| Operating Temperature | 0°C to 40°C |
Warranty Information
- Full Warranty: 2 years parts and labor
- Extended Support: 5 years firmware updates
- Additional Coverage: Optional premium support available
For warranty service, contact Yealink Customer Service at 1-800- YEALINK or visit Yealink.com
Key Features
HD Voice Quality
Yealink's advanced audio technology with wideband audio support delivers crystal-clear voice quality with reduced background noise for professional communication.
Touch Screen Interface
Intuitive 7-inch color touch screen with customizable shortcuts, visual voicemail, and easy navigation through contacts and call history.
PoE Support
Power over Ethernet capability simplifies installation by delivering both data and power through a single network cable, reducing clutter and installation time.
Bluetooth Connectivity
Built-in Bluetooth allows wireless connection to headsets, mobile phones, and other Bluetooth-enabled devices for enhanced mobility.
Multi-line Support
Support for up to 12 SIP lines with individual line keys, allowing simultaneous calls, call waiting, and advanced call handling features.
Integrated Gigabit Switch
Built-in dual-port Gigabit Ethernet switch enables daisy-chaining to connect a computer without requiring an additional network drop.
Call Management Features
Call Transfer
Blind, attended, and supervised call transfer options for efficient call handling
Conference Calling
Support for multi-party conference calls with up to 8 participants
Call Recording
One-touch call recording with local storage or network upload options
Voicemail Integration
Visual voicemail with message waiting indicator and playback controls
Call Park/Retrieve
Park calls on system extensions and retrieve from any phone in the system
Speed Dial
Programmable speed dial keys with contact photos for quick access
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Phone won't power on | Power issue, faulty PoE switch, defective adapter | Check power source, test with different PoE port, try AC adapter |
| No dial tone | Network issue, SIP registration failed, incorrect settings | Check network connection, verify SIP credentials, restart phone |
| Poor audio quality | Network congestion, codec mismatch, faulty handset | Check network QoS settings, verify codec configuration, test with headset |
| Cannot make/receive calls | Firewall blocking, SIP ALG enabled, incorrect NAT settings | Check firewall rules, disable SIP ALG on router, configure STUN if needed |
| Screen not responding | Touch screen calibration issue, software glitch | Restart phone, perform factory reset, update firmware |
| Bluetooth not connecting | Bluetooth disabled, pairing mode not active, device compatibility | Enable Bluetooth, enter pairing mode, check device compatibility |
Common Error Codes
- No Service: Network connection issue - Check Ethernet cable and network settings
- Registration Failed: SIP configuration error - Verify SIP server settings and credentials
- Audio Problem: Codec or network issue - Check audio settings and network quality
- DHCP Failed: Network configuration issue - Check DHCP server or use static IP
- Memory Full: Storage limitation - Clear call records or voicemails
- Update Failed: Firmware issue - Check network connection and try again
Manual Downloads
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