
Reference
Reference
This section describes the terminology used on the display, the phone communication signals, guidelines, technical specifications, spare parts and accessories.
Terminology
The list below explains the terms which may appear on the display.
Terminology used on display
Term | Meaning |
DTMF | Dual Tone Multi Frequency or touch tone, for dialling. |
IPEI | International Portable part Equipment Identity, unique |
| identity assigned to your Cordless phone by the |
| manufacturer. |
PIN | Personal Identification Number for security. |
BusinessPhone – Cordless DT590 | 129 |