The Yealink W73H is a DECT cordless VoIP phone system designed for business environments, featuring a base station with support for up to 8 handsets, HD voice quality, 5-hour talk time, multi-line support, Bluetooth connectivity, and integration with major IP-PBX platforms. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.
Key components: Base Station, Cordless Handset, Power Adapter, Ethernet Cable, Handset Charger, User Manual.
| Feature | Description |
|---|---|
| DECT Technology | Secure wireless communication with up to 8 handsets |
| HD Voice | Wideband audio for crystal-clear conversations |
| Bluetooth | Connect mobile devices for call handling |
| Multi-line Support | Up to 5 SIP accounts per handset |
| Large Display | 2.4-inch color screen with backlight |
| Talk Time | Up to 5 hours continuous use |
| Standby Time | Up to 120 hours |
| Conference Calling | 3-party conference support |
| Headset Port | 3.5mm jack for wired headset |
| Power over Ethernet | IEEE 802.3af compliant (optional) |
Unpack and inspect contents. Place base station on stable surface.
WARNING! Use only Yealink-approved power adapter. Ensure proper ventilation around base station.
Power on base station and handset; follow on-screen prompts.
CAUTION! Keep base station away from heat sources and moisture.
Access menu via handset MENU button or web interface (default IP: 192.168.0.10).
Handset Controls: Navigation keys, SOFT KEYS, SPEAKER, MUTE, VOLUME, TRANSFER, CONFERENCE, HEADSET, REDIAL.
Basic Settings: Language, Time format, Display contrast, Backlight duration, Ringtone selection, Volume levels.
Advanced Settings: SIP accounts, Network configuration, Bluetooth pairing, Call features (call waiting, forward, hold), Security settings.
Web Interface: Access via browser for advanced configuration (username: admin, password: admin).
Network: Ethernet cable to router. Bluetooth: Pair with mobile devices. Headset: 3.5mm jack.
Tip: Use quality CAT5e or higher Ethernet cable for best performance.
Supports advanced business telephony features.
WARNING! Do not expose handset to extreme temperatures. Use only original charger.
Hearing Aid Compatible: M4/T4 rating. Visual Alerts: Flashing LED for incoming calls. Audio Adjustment: Separate volume controls for handset, speaker, ringer. Large Text: Option for enlarged font on display. High Contrast: Display contrast adjustment.
Unplug power before cleaning. Use slightly damp cloth for handset and base. Do not use abrasive cleaners.
CAUTION! Never immerse any part in water. Avoid chemical cleaners on display.
FCC Part 15: Class B digital device compliant. CE marked. RCM approved. DECT approved for use in supported countries. This device complies with Part 15 of FCC Rules. Copyright © Yealink Network Technology Co., Ltd. For support, visit www.yealink.com or contact your local distributor.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No dial tone | Network/SIP configuration | Check Ethernet connection; verify SIP account settings. |
| Handset not registered | Registration process | Re-register handset via base station; ensure within range. |
| Poor audio quality | Network/range issues | Move closer to base station; check network bandwidth. |
| Short battery life | Battery age/usage | Replace battery if old; reduce backlight duration. |
| Cannot make calls | SIP server/network | Verify SIP server address; check firewall settings. |
| Bluetooth not connecting | Pairing mode/distance | Ensure Bluetooth enabled; stay within 10 meters. |
Reset: Press and hold # key during power-up for factory reset (erases all settings).
Firmware Update: Download latest from Yealink website, upload via web interface.
Service: Contact Yealink support or authorized service center.