Block outgoing calls for an extension

Hi Guys,

I have an extension that i would like to disable the call forwarding unconditional on.

I looked at the admin->feature codes. And i changed all the forwarding codes to disabled. Didn’t seem to help much. But i also feel like that was blocking all extensions, and i only really want to do one.

if someone could point me in the right direction, would be most helpful!

Thanks
Grant