I want to block all outgoing calls regardless of who I'm calling since I have finished all my allowance.
I need a way to block all calls because I keep forgetting and I'll exceed my allowance. (I can use VoIP services instead).
I want to block all outgoing calls regardless of who I'm calling since I have finished all my allowance.
I need a way to block all calls because I keep forgetting and I'll exceed my allowance. (I can use VoIP services instead).
Inspired by DrZoo's idea in the comments, if you have a rooted device and using Macrodroid, you can block all outgoing calls by following the steps below:
The image below illustrates the macro when completed. When you try to make a call, the air plane mode will be on, forcing the dialer app to stop the call because there is no connectivity. After 1 second wait, the air plane mode will be set to off, restoring connectivity.
Disclaimer: I am not associated with Macrodroid developer(s), only a user.
The app shared by Mark above seems to not be available anymore. I found another alternative - Block Outgoing Calls. This is also a paid app.