I have checked "Do not disturb" and it is not set "on"--notifications have marimba for incoming calls--all others are checked--restarted iPhone--Sounds & Haptics buttons are all set "on"--ringer volume is set at ¾'s---Change with buttons is set "on"---
Some other things to check:
The ring/silent switch on the left side of the phone. See: https://support.apple.com/en-us/HT208353
Settings > Phone > Silence Unknown Callers: https://support.apple.com/en-us/HT207099
Some other things to check:
The ring/silent switch on the left side of the phone. See: https://support.apple.com/en-us/HT208353
Settings > Phone > Silence Unknown Callers: https://support.apple.com/en-us/HT207099
iPhone 7 does not ring for an incoming call
