Forwarding guides

Pick Your Carrier for Call Forwarding Setup

Forward calls from your existing phone number to CallWise AI in under a minute. Step-by-step instructions for every major US carrier.

How call forwarding works

When you set up call forwarding, your carrier routes incoming calls to a second number — in this case, your unique CallWise AI number. You keep your existing phone number, ads, Google listing, and business cards unchanged. Most carriers support three forwarding modes:

Always On: Every call goes straight to CallWise AI. Good for scheduled AI coverage.
When Busy or No Answer (Recommended): Your phone rings first. CallWise AI picks up after 4 rings or if your line is busy.
Out of Coverage: Forwards only when your phone is off or out of signal. Best for field crews.

Pick your carrier

Dial *21* + number + #

View setup guide →

T-Mobile

Feature code

Dial **21* + number + #

View setup guide →

Google Voice

Web portal

Web portal (voice.google.com)

Web portal (service.ringcentral.com)

View setup guide →

Grasshopper

Web portal

Web portal (app.grasshopper.com)

View setup guide →

Don't see your carrier? Most US carriers support *72 or **21* for unconditional forwarding. Sign up and our setup wizard will detect your carrier automatically.

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