Yes, it is possible to make phone and conference calls with the AVENTHO 300. The following functions are available on the touch pad of the headphones if they are supported by the connected computer or mobile phone:
Tap twice quickly to accept the incoming call or end the active call. Tap and hold once to reject the incoming call or switch between two callers.
Users of Android or Windows devices: For the microphone to work correctly, make sure that your AVENTHO 300 is connected as a headset (icon: headphones) for calls and audio playback and not as a playback device (icon: phone/tablet). If in doubt, unpair the AVENTHO 300 from the list of Bluetooth devices and pair it again as a headset.
Users of LE Audio on Android devices: For some mobile phones, it might be necessary to deactivate the "LE Audio" function in the system settings in the Bluetooth menu of the AVENTHO 300, and activate the "Calls" function.