When on call with an automated system and I am prompted to press “5” my keypad tone is not recognized. This issue started with my Iphone 7plus, months ago. I figured it was time for an upgrade I purchased an Iphone 11 pro, I have had this phone for 2 weeks and I am having the same issues. My phone has all the recent upgrades, I have signal at home, I restart my phone from time to time and this continues. This is very frustrating as the calls are from a family member in prison. I can answer the call but to be able to accept the call and get connected you must press 5 or say 5, I press 5 on my end I hear the tone, and still the call ends because I have not “pressed” 5. Even when I say 5 it is still not recognized. I contacted the third party that provide the phone service to the prison GTL and they ran their diagnostics and have said it is not an issue on their end, that if it was an issue on their end then the call would not even go through. I am extremely frustrated that I bought a new phone and still cannot accept calls. This is a simple function ? what can be done?