android Outbound caller id - on/off

Question

I wan to hide/show my caller id from my activity programmatically. I tried to find it in the android documentation but without the luck. Maybe you have any ideas?

Answer 1

If the #31# trick works for your needs for a single call then you could add a broadcast receiver that listens for the outgoing call notification and modifies the number to include #31# at the start before it gets dialled. Android allows the number to be changed on the way through like that.

Only works if your default is to enable caller ID and your network support #31# and you want to toggle it off using a widget, say.