I would like to change the extension caller ID depending on the number dialled. Basically i’d like when extension 123 dials extension 456 it then shows that 789 is calling instead of 123. But if extension 123 dials anything else it just shows 123.
I don’t think that’s doable… at least no without some creative programming. You can have a different CID show ALWAYS, or never. I don’t think sometimes is available.
I had though of Oubound routes until you refered to internal calls.