I have an unlocked, universal s8 purchased at end of 2017. I've had intermittent problems with DTMF tones, but they are now totally gone, as is any option/settings to change DTMF settings. My old Galaxys had a setting for DTMF, and this phone DID have functioning DTMF when I got it.
I use TMobile. I have WIFI calling switched off.
It has most recent update
I have tried:
switching off VOLTE and going to 2G/3G network;
Turning on and off "keypad sounds;"
Turning on and off "notifications during call;"
Turning phone on and off;
Clearing cache/storage in phone app;
Every other suggestion found on the internet in the many forums that discuss this very problem.
NOTHING works. I cannot call stores, banks, or even the police without DTMF function!! What happened to DTMF and how do I get it back??
I use TMobile. I have WIFI calling switched off.
It has most recent update
I have tried:
switching off VOLTE and going to 2G/3G network;
Turning on and off "keypad sounds;"
Turning on and off "notifications during call;"
Turning phone on and off;
Clearing cache/storage in phone app;
Every other suggestion found on the internet in the many forums that discuss this very problem.
NOTHING works. I cannot call stores, banks, or even the police without DTMF function!! What happened to DTMF and how do I get it back??
