This manual provides step‑by‑step instructions for installing the BBK telephone base unit and its sub‑handsets, including wiring to the telephone line and connecting the dedicated transformer (BBG‑T‑07). It also covers how to pair (code) sub‑handsets, adjust LCD brightness, set date/time and configure ringtones.
Additional sections describe battery charging procedures, common fault symptoms and their remedies, as well as technical specifications such as power requirements and DTMF frequency groups. This manual is written in Chinese.
| Emission power (base unit) | 20 mW |
|---|---|
| Power supply voltage | 9 V AC, 50 Hz |
| DTMF low‑frequency group | 697 Hz, 770 Hz, 852 Hz, 941 Hz |