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14. Caller ID at Knocking Signal
If your phone grid provider supports this function or if this function has been booked additionally, the
mobile unit may show the phone number (and the name, if it is in the phone book) of a second caller while
you are in a call.
With the function button marked „R" in the display, you can accept the second call and return to the first
caller.
If an external call has been forwarded to another mobile unit, this function is not possible.
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