State of knowledge

March 2022

Use case: Softphone calls

Function ProCall in app call windowAndroid call window

Call account disabledCall account activated
Forwarding (Blind Transfer)(tick)(error)
Mobile Device Management (MDM) (tick)(error)
Control of the audio output device (e.g. Bluetooth headset, loudspeaker)
Making phone calls via infotainment system/hands-free system in the car (connection via Bluetooth)(error)(tick)

Holding calls



Connection quality display


Warning notice and warning signal in case of poor connection quality

Call waiting, display and hold of a second call on GSM line during a SIP call(tick)(tick)
Switch from Android call window to in-app call windowN/A(tick)
Switch from in-app call window to Android call window(error)N/A

Minimize/maximize the call window during an ongoing call.


You can enable or disable the Android call account depending on the function you want.

Mobile Device Management (MDM)

If you use ProCall Mobile in conjunction with a Mobile Device Management (MDM) such as Microsoft Intune, you will not be able to access the Android phone settings and thus the changes to the call account permissions. The following alternatives can be used for activation or deactivation: ProCall Mobile app: Android call account notes..

The Android call window cannot be used within the Android work profile (MDM). As soon as a softphone call is made, the user leaves the work profile. This results in undesired behavior, such as the calls being saved in the phone's call log.