This manual explains the functions and features of the Sampo HT‑B603WL telephone, including caller ID service, anti‑theft protection, volume control, flash‑cut, and music hold. It also details the specifications such as dimensions, weight, and DTMF signal parameters.
The guide covers installation requirements, how to set the date, time and local area code, how to configure outgoing and incoming call codes, and how to use the handset for normal calls. A troubleshooting section lists common problems and their remedies, and after‑sales service contact information is provided. This manual is written in Chinese.
| Dimensions | 200 mm × 78 mm × 10 mm |
|---|---|
| DTMF low‑frequency group | 697 Hz / 770 Hz / 852 Hz / 941 Hz |
| Side‑tone level | -11 dB to -2 dB |