As you can see in the Me tab, there are Voice Settings.
These are comprised of two options:
- Inbound Calls
- Inbound Calls on Lock Screen
The first one is what allows you to block all inbound calls on your TextMe account. This includes all calls to your TextMe number or your username.
The Inbound Calls on Lock Screen toggle allows you to receive calls directly on your lock screen. If it's disabled, you will be required to unlock your device and open TextMe to answer all calls.