WD-150AN telephone user manual, including user manual, installation and setup methods, precautions and warranty.
This manual describes how to operate the WD‑150AN device, including detailed instructions for each button and the sequence of actions required for normal use. It also covers safety precautions and basic troubleshooting.
Installation guidelines, wiring connections, and the technical parameters of the product are listed, allowing users to set up the device correctly and verify its performance against the specified specifications. This manual is written in Chinese.