Making Calls - The Basic Functions - Unify Gigaset S4 User Manual

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Making calls – the basic functions
You can use your handset to make both internal and external calls.
Internal calls are calls that
• you make within the range of a communication system, for example, within
your company,
• you make between networked communication systems, for example, to differ-
ent company locations.
External calls are calls that you conduct with users of the public telephone net-
work.
Making calls – the basic functions