I have no problem making calls, but whenever I receive calls I hear an echo. The person on the other end doesn't hear an echo. What should I do to fix this problem?
Best answer by paul.johnston.9887
I had a similar problem when receiving calls from landlines After resetting my iPhone and replacing the SIM card T-Mobile replaced my iPhone 6 Plus. The new phone had the same problem when receiving landline calls from those who have AT&T. I called and spoke to an Apple specialist at T-Mobile who said he would open a new ticket with T-Mobile Engineering. He said my problem was a known issue when the iPhone 6 came out. He had me change one setting that so far has worked great. Go to Settings and then to Cellular. Look for Enable LTE. Change the setting to Data Only instead of Voice & Data. Hope this fix works for others.