Lumen help
You can turn the Remote Office feature on when you need to use an alternate phone, such as your mobile or home phone, as your business phone. When the feature is on, you can make and receive calls as if you’re in the office, and your office number will appear in the caller ID for outbound calls.
If you need to use your mobile or another phone to make and receive business calls so your office number shows in the caller ID, turn this feature on.
To turn Remote Office on:
If you no longer need to use your mobile or another phone to make and receive business calls so your office number shows in the caller ID show, turn this feature off.
To turn Remote Office off:
Learn more about Enterprise Assistant Toolbar