On your iPhone 6s
, incorrect network settings might cause the same problem, with calls going straight to voicemail. If this is the case, you have the option of reverting the changes to their previous state prior to the occurrence of the problem. If you can't figure out which settings or choices have been modified, you can simply
reset your device's network settings. All network configurations you've made will be erased, and the network will be reset to defaults. Before you start, make a note of your network passwords, as they will be erased as well. When you're ready, go through the following steps:
- From the Home screen, select Settings.
- Select General.
- A reset can be found by scrolling down and tapping the Reset button.
- Select Reset Network Settings from the drop-down menu.
- To proceed, enter your passcode if required.
- Wait until the network has been rebooted. After that, your iPhone will restart.
After the reset, you will need to set up your Wi-Fi network and re-enter your Wi-Fi passwords.
check if this solution works or not
