Is there any way to configure multiple extensions on 1 phone? My situation is that I own two companies -- a home services company (plumbing, heating, cooling), and a real estate rental company. When I call people, I want the appropriate outbound caller ID to show up. Before the 3CX 12 upgrade, I was able to accomplish this by changing my caller ID with MyPhone. Since the migration to the 3CXPhone, this doesn't seem to be a possibility. Hence my question. My Cisco SPA504G supports the feature, but there is not a place (or at least not an obvious place) to set this up on the 3CX Management Console. Sure... I could log in to the console each time I want to change my outgoing caller ID, but this seems like a rather brute force approach to what was (and should be) a simple "problem."