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Giant Telecom Limited – Operator Manual for 5860 – Version 0 2 29Jun2004
9.4 Stutter Dial Tone Check
The unit can also detect Dial tone and/or Stutter dial tone in order to determine
the message waiting status (ie the message waiting LED indicator)
10 Other Features
10.1 Identification of a parallel line occupancy (for a not seized line)
If the line is not seized by the system, line occupancy (for example through
seize by a parallel switched device) is detected.
All the handsets reflect this situation by turning on 'In use LED'.
10.2 Identification of line occupancy (for a seized line)
The Ext icon appears at all the handsets if one at the same base registered
handset seizes the line. (Display shown for both occupancy by parallel
equipment and for occupancy by parallel handset.)
10.3 Battery low warning
Battery condition is checked all the time when handset is on.
Battery charging Icon behaviour during Charging. If discharging, reverse.
When the battery status is battery low/Battery Critical, the empty battery icon
blinks. No further operation is allowed. It is in Standby condition. The handset
should be placed on base cradle for charging.
10.4 Display illumination (Back-lighted LCD/Keypad)
Display illumination is activated:
• when any key is pressed
• when an incoming call (internal, external)
• when alarm.
Switching off:
• After T2 the display illumination is switched off. (Any of the above actions will restart
the timer)
10.5 Key Lock
This is accessed by Long Press # key during the idle mode.
During Key lock mode, there is no response to all keys, except Talk key during
external/internal incoming call or except emergency call sequence(eg 110).
During Key Lock mode, Long Press # key to disable key lock.
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