Mercedes-Benz 2005 C 240 4MATIC - Manual (Page 214)

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Controls in detail
Audio system
ț Switching between calls
̈ Press s button.
This switches between the calls.
The non-active call is kept on hold.
ț Terminating a call
̈ Press t button.
The current call is terminated. The
connection to the caller previously
kept on hold is also interrupted;
however, reconnection is indicated
by an acoustic signal.
Placing a second call
If you wish to place another call during an
already active call, you can place the
second call and switch between the callers
or combine them into one call. Note that
this feature is depending on availability
from your mobile phone service provider.
ț Placing a second call
̈ Place a new call by entering
telephone number manually.
̈ Press s button.
You are connected to the second
caller; the first caller is kept on
hold.
ț Terminating a call
̈ Press t button.
The current call is terminated. The
connection to the caller previously
kept on hold is also interrupted;
however, reconnection is indicated
by an acoustic signal.
ț Combining two calls
̈ Press s button.
The calls are combined into one
call.
ț Terminating a combined call
̈ Press t button.
The connection to both callers is
terminated.