This manual covers safety precautions, key features, and the function diagram of the BBK HWDCD007(192)TSD telephone. It explains how to install the charging base, register sub‑handsets, and use the device safely in various environments.
Detailed usage instructions include charging procedures, volume control, call handling, and troubleshooting common issues such as registration failures or no ring tone. Technical specifications and environmental compliance information are also provided. This manual is written in Chinese.
| Communication Technology | 2.4 GHz digital communication with frequency‑hopping spread spectrum |
|---|---|
| Operating Temperature | -10 °C to 40 °C |
| Relative Humidity | 10 % – 95 % |
In standby, hold the charging base’s 【呼叫/注册】 key for about 4 seconds until the indicator flashes, then hold the sub‑handset’s 【对讲/注册】 key until the screen shows a full line, then release both keys.
When the battery voltage drops, the screen shows a “[L” symbol and an alarm tone sounds, indicating that the handset should be placed on the charging base.
Check the line connections for poor contact or a broken telephone line, and ensure the handset or base is properly connected to the external line.