Siemens Hicom 300 E - Manual (Page 39)

Making project calls
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Step by Step
Call duration display
The call duration display is configured by System Sup-
por t. The display shows either the duration of the call or
the cost of the call. The display can be switched off.
The call duration is shown in the first line on the right
with format HH:MM:SS and 24-hour system. The dis-
play appears ten seconds after the call has begun.
The cost display feature must be applied for from the
network operator and configured by System Support.