Help > Functions and Applications > Incoming calls
Incoming calls
When the app is open, incoming calls are displayed immediately.
*Description of the operation and display under Incoming calls
The following symbol answers the call:
*Note: When using a headset, the call can also be answered by pressing the headset hook button.
*Further help under Audio devices, headset
*Note: After the call/conversation has ended, the app switches back to the page previously opened via the navigation.
*Note: If the app is minimised or in the background, incoming calls will only be displayed when the app is selected in the taskbar or when a call is accepted via a notification. Alternatively, the app can be brought to the foreground immediately when a call is received or kept in the foreground permanently: Settings > App > Bring to the foreground when a call is received / Keep app in foreground
*Details about the settings are in App
Incoming calls – answered and missed – are saved in the call list.
*Description of the operation and display under Call list
Acoustic signalling 
The acoustic signalling of incoming calls depends on the settings of the operating system (also for the notifications) and the available output devices. In the app, you can also select an output device and add your own ringtone: Settings > Audio > Ringer output device / Ringtone settings
*Details about the settings are in Audio
Notifications 
Depending on the notification settings of the operating system, incoming calls are also signalled as notifications (sound/banner). The notification also names the called group and the exchange line used. The calls can be accepted or rejected via the notification. Accepting a call brings the app to the foreground. Unanswered calls are then displayed in the notification centre.
*Note: Depending on the operating system – e.g. in Windows – a notification tone may be audible in addition to the ringtone for an incoming call. To avoid this, disable the sound for app notifications in the notification settings of the operating system.
Call waiting 
The call waiting function can be used to signal incoming calls during an ongoing call.
*Description of the operation and display under Call-Waiting Calls
The signal is given by a sound or a message on the display.
You can do one of the following:
•Reject the call waiting call.
The call waiting caller hears the busy signal.
•You take the call waiting call.
You are then connected with the call waiting call. The previous call partner is held.
•You start a conference.
You are now connected with the call waiting call and the first call partner in a conference.
•You disconnect the current conversation.
You can accept the call as usual.
•You forward the call waiting call.
The call waiting caller also hears the ringing tone until the called person lifts their handset. You are now connected to the first call partner.
Call waiting and call waiting tone can be switched on/off via: Settings > Telephony > Reachability > Call waiting / Audible indication
*Details about the settings are in Reachability
Do not disturb 
Use the Do-not-disturb function to switch off incoming calls if necessary.
Do-not-disturb can be switched on/off via: Settings > Telephony > Reachability > Do not disturb
*Details about the settings are in Reachability
Alternatively via symbol in the status bar:
*Description of the operation and display under Overview User Interface
Call forwarding 
Use the Call forwarding function to forward calls independently of the current situation (immediately, on busy or on no reply).
Call forwarding can be switched on/off via: Settings > Telephony > Call forwarding
*Details about the settings are in Call forwarding
Alternatively via symbol in the status bar:
*Description of the operation and display under Overview User Interface