Yes, using Swedish/Norwegian provider Telenor.
Sadly, this trick does not work for me, it stays silent as the grave, dispite any amount of "firmly pressing" this spot (or the areas around it). I dont get the "click" sound either, so that makes sense, I suppose.
The mic works for me too, as well as speaker phone. Did not get around to trying bluetooth yet, as I figure the phone is more or less unusable if I cant use it for making calls.
I also do have these weird little blobs, just on the lower corners (holding the phone in portrait mode), not on the upper ones.
@MonCon, gonna