This manual explains how to install the BBK HA007 telephone, connect it to the telephone network, and use its features such as pulse/tone dialing, ringtone volume control, and call transfer. It also describes the device’s automatic gain control and the PT (pulse/dual‑tone) switch.
Additional sections cover cleaning, shock protection, storage, transportation, after‑sales service, and troubleshooting tips for common issues like no sound, mute, or dialing problems. This manual is written in Chinese.
| Operating voltage | 48‑60 V |
|---|---|
| Ringtone volume | Adjustable via side switch |
| Dialing mode | Pulse / Tone (PT) switch |
| Automatic gain control | Included, reduces effect of line length |
Wipe the surface with a soft cloth; do not use corrosive cleaning liquids or chemical solvents.