When I receive a message while on a call I loose the other party

[AC Question]

When I am in a telephone conversation with another person and I receive a message or WhatsApp I suddenly cannot hear the other person but they can hear me. I then have to disconnect the call and dial them again - until I get another message. I have a Huawei P8.

 

[Javier P]

Mod note. Thread moved to the Huawei P8 forum for more visibility.