Unify OpenScape CP400 - Call waiting with a direct station select (DSS) key

Phoning on several lines (multi-line) 97
Call waiting with a direct station select (DSS) key
Requirement: You have set up DSS keys on your phone  page 15. The desi-
red participant’s line is busy.
Press the DSS key.
The participant called accepts your call waiting.
^ Lift the handset.
or
: Press the key and use speakerphone mode.
Line
_
Take note of the meaning of the LED displays on the DSS keys
 page 15.