I n t r o d u c t i o n

rooms where inflammable liquids or gases are present

charge your batteries only with the supplied battery charger

disconnect the battery charger when not in use for extended periods

do not leave the battery connected to the battery charger for longer than one week

Explanation of header icons

The header icons, next to the banner at the top of each page indicate the contents of each section as follows:

Explanation of the set's components

Description of features

Configuration

Information about different subjects

Information about distinct features

Terms you should know

Directory Number (DN) — a DN is any extension on a telephone.

10

Standard 2.00

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Nortel Networks C4020, C4010, C4010Ex manual Explanation of header icons, Terms you should know