I had an 8 and never had issue talking on speaker. As soon as I upgraded to the 13, I have had issues intermittently while talking on speakerphone, Which I tend to do a lot for work. I’ve been able to figure out that the phone actually cancels my voice, so it is noise canceling my voice instead of outside sounds. Pretty unacceptable and ridiculous. I’d rather have no noise canceling option, so I could turn it off and at least people could hear my voice even if it is loud in the background. The feedback I got from people on the other end of the line was that they would hear me and then it wouldn’t drop what I was saying and then they would hear me again. Basically In-N-Out while I’m talking. As soon as I take it off speaker they hear me fine. Pretty crappy result for a phone that cost 1000 more dollars and was 5 years newer than the 8.