My mom's had wifi calling on her s6 and I would hear an echo on my side... Was annoying!
I have the same problem. call working fine on speaker but normally the caller on the other side complaining about echo problem. How had you fixed it?When i make a phone call the other person hears me fine, but i hear an echo of my self when i talk. can i fix this? why do i echo when making a phone call? and this isn't when on speaker phone this is just regular phone to ear.
Bring the phone to your carrier. About half of the echo problems are carrier problems, so only they can fix them. (The rest are room, phone design [which isn't the case with the S7E] and external devices, like speakers when using a speakerphone, or cases.)