Dynamic Caller ID overview
The “dynamic” aspect of this feature is the ease of switching from one outbound number to another by entering a code combination on the phone. Each user already has their own unique, custom caller ID that can be switched to any number on the account and switch back just as easily.
How Dynamic Caller ID works
Once your account administrator assigns a code to the numbers on your account, users on the account can switch back and forth from number to number when making outbound calls — using just a few digits on the phone. This feature is easy to use and allows callers to switch to other numbers within their Vonage account.