Go to the Apple store. I’m sure you can trade for a crackling one.I used the speaker today for the first time in months.. Usually use the phone as a phone (my only phone, no land line).
Of course the call to apple the call was clear as could be...no garble....like taking your car in for a problem.There is something up.....enough info from us folks and it should get figured out.
I've done a few resets with no improvement. Hard reset, memory flush, network reset, power cycle.
Seems to be about 1 out of 3 calls are garbled for the listener ....no static/clicking sound on my end (yet).
I’ve seen a few people report about the garbled thing. On my crackling one the other people can hear me fine like normal.