Android Auto retrofit...Help

Hi everyone. I just had the Android auto retrofit installed in my 2017 Mazda CX9 Signature series at Mazda dealer.

My question is pertaining specifically to WhatsApp? If I receive calls through WhatsApp, it rings through the system but I can not answer the call? I push the telephone button on steering wheel and nothing. Is this normal/can anyone help?

My husband has a 2019 Mazda 3 GT hatchback and he has no pictures with this. He can answer WhatsApp calls no problem.

Thanks in advance!
 
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