All of my wifi calls have a delay in connection after answering call. It rings and I have to say hello two or three times before the caller hears me. Then, they only hear one or two hello’s. I’ve tried pausing a second before saying anything and it doesn’t seem to help.
The router is a top of the line router and the wifi connection is good. Internet speeds are good with 32ms ping, 26 Mbps download, and 5.3 Mbps upload.
I have a Moto Z Play.