Prevent outgoing international calls except when made through Google voice

Question

Is there any way to prevent outgoing international calls except when made through Google voice, and without having to ask the mobile network carrier to block them?

I am the way of Is there a way/app to block outgoing international calls, without activating the network provider's International Call Barring? but I still want to go voice to be able to make international calls.

Answer 1

Here is how you can set up such configuration:

1. Go to Outgoing calls setting in GV preferences

2. Tick International calls only inside this menu