American Telecom ATS 4121CCL - Manual (Page 23)

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Phone line is idleLED is off Flashing Red
Line is ringing
1/2 second Green; 1/2 second Off 1/2 second Green; 1/2 second Off
Handset in use
LED is steady Green 1 second Green; 1 second Off
Extension in use
LED is steady Green 1 second Green; 1 second Off
Handset Status Indication
Handset Status Indication – Display Icons and Antenna indicator (LED)
Service Indication (Antenna icon)
This icon is displayed when the Handset is within range of the Base. This icon is off when the Handset is out
of range of the Base.
Off Hook (Telephone icon)
This icon is on when the Handset is in use (off hook).
Low Battery
This icon is displayed when the battery voltage drops below the critical charge level. The icon is turned off
when the battery is charged above its critical level.
Key Lock
The key lock icon is displayed when the keypad has been locked.
New Call (NEW)
The New Call icon is displayed when there are one or more unreviewed calls in the CID call log.
Ringer Off
The icon is displayed when you program the ringer to OFF (ring volume = 0).
Display Messages
The Handset provides a number of on-screen status messages, both in the idle state and during conversation.
The following status messages are shown in the idle mode (in prioritized order):
When the Handset is out of range, an "out of service" message is shown in line one.
OUT OF SERVICE
When the Handset does not have a valid registration, the display shows:
NOT REGISTERED
PLACE IN BASE
If a new battery has been inserted (or the battery has been run down), and the battery voltage is too low to
guarantee reliable use, the display shows:
PLACE IN CHARGER
When the battery’s nominal charge level is reached, it will display "CHARGING":
CHARGING
When the battery is charged up to a level above its nominal charge level, it will display "READY":
READY
NOTE: Even though the display now displays ‘READY’, the battery pack may not be fully charged.