This PDF file mainly introduces the new products of Huawei mobile phones, including the Mate40 series and P50 series. These products have been greatly improved in appearance, performance and functions.
This manual provides step‑by‑step instructions for installing the Kolin KTP‑705L caller‑ID telephone, configuring time, area code, outgoing code and dialing method, and using its built‑in features such as alarm, volume control and ringtone selection.
It also lists technical specifications, safety and emergency handling guidelines, routine maintenance tips, and a troubleshooting guide for common issues like missing caller ID or no dial tone. This manual is written in Chinese.
| Dialing system | DTMF |
|---|---|
| DTMF high‑frequency group | 1209/1336/1477 Hz |
| DTMF low‑frequency group | 697/770/852/941 Hz |
| DTMF frequency error | ±1.5 % |
| Caller‑ID reception | FSK/DTMF dual mode |
The service must be activated by the local telephone exchange; if it is not, the number cannot be shown.
Do not touch the phone directly; isolate it with an insulating material and disconnect the line before contacting service personnel.