Nokia 2110 - Manual (Page 16)

Keys, Display and Connectors
ABC. Indicates that your phone is in alpha mode
(letters as well as digits can be entered).
Steady: You have received a short (SMS)
message.
Flashing: Message memory is full.
Indicates one of the following: memory
location, menu, submenu or setting option.
This function is not available.
Indicates that there is a list of options to
select from. This pointer also indicates the
currently selected option,
CONNECTORS
For cigarette lighter adapter and fast travel charger.
Power connector for desktop charger CHH-2.
System and data connector for accessories, desktop
chargers and HF car kit.
For external antenna.
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