My Moto X Gen 2 seems to have trouble answering calls when I’m in the office connected to work wifi. Most times, it rings, I answer, and i say “hello…hello”, and nothing. In a few cases if i wait a bit then the connection is made, but usually nothing happens. On some occasions it works…but when my ex wife calls it never connects? I’d say less than 1/3 of total calls connect. If i try to call back, usually it will connect with them.
At home it works fine on wifi.