Siemens HIPATH 8000 - Manual (Page 78)

Step by Step
Basic functions
78
Canceling a consultation call
If the called party does not answer
In the pop-up menu:
Select and confirm the option shown.
The call with the first party is resumed.
If the called party does answer
Select and confirm the option shown in the context
menu for the connection to the second station.
The call with the first party is resumed.
Disconnect & return
Disconnect & return