- Important numbers:
.
- LED ringer indicator. Line in use.
- Emergency numbers: M1, SOS, M2.
: Memory key.
- R.
: Redial key, redials the last number.
: Hands-free.
- Numeric keypad.
: Handset volume booster.
- TEL. LINE: Line cable input.
- FLASH: Switch to adjust R time (300/100).
- RINGER
: Ringer volume control (high, low,
off). - VOLUME
: Volume control (low, medium, high).
- TELEPHONE CABLE: Input for coiled
headset cable.