This manual describes the main and sub‑unit functions of the CT‑S116L Caller ID display, including incoming call display, call logging, and channel switching. It also explains how to set and clear the local area code and how to use the device for outgoing calls and callbacks.
Installation steps, wiring diagrams and power‑supply requirements are covered, followed by a troubleshooting section that lists common faults and the recommended actions. After‑sales service contact information is provided at the end of the document. This manual is written in Chinese.
Press the "#Wy" key to display the current code, then use the "#" key to enter the desired local area code and confirm.
Stop using the device immediately and contact the service hotline for assistance.