This week, I ordered an FP4 3 times. All devices had a sound problem during calls; noisy, tinny and choppy sound. Both on my side and that of the receiver. And both to mobile and landline numbers.
I read earlier posts about this.
I tried the following things:
Wifi Calling off
Permission Google for microphone off
Network free choice
Is there anything else I can do to improve the sound?
When I play music through speakers there is no problem. When I connect a headphone with a miniusc-jack I hear noise.