Google Fi runs on the T-Mobile network. The codes below are dialled on the phone whose calls you want forwarded. Replace 709 555 0100 with the number the calls should go to.
Missed-call forwarding works on Google Fi, with one catch.
Google Fi says conditional (missed-call) forwarding is not supported; it offers Don’t forward, Ring all and Always forward in the Fi app. Use Always forward: the AI answers and puts callers through to you when they ask.
From a third-party guide (read 2026-10-19), not Google Fi's own page. Source
Google Fi has no missed-call forwarding. Use "Every call" below: your AI answers and can put callers through to you.
This carrier has no missed-call forwarding.
Fi app → Phone settings → Call forwarding → "Always forward" → +17095550100
Your phone does not ring; the AI answers straight away and can put callers through to you (live transfer).
Fi app → Phone settings → Call forwarding → "Don’t forward"
Cancels call forwarding on this phone.
A code that comes back as “connection problem or invalid MMI code” usually means Wi-Fi Calling is on (these codes do not travel over Wi-Fi) or the plan has no call forwarding: switch Wi-Fi Calling off and dial it on the mobile network, or ask the carrier for conditional call forwarding.
Delusia gives your business a number to forward to and an AI receptionist that answers in your name, books the appointment or takes the message, and texts the caller back. If you use Delusia, Phone Setup shows these Google Fi codes with your own number already in them, and can text them to your phone as a link.
Missed-call forwarding works on Google Fi, with one catch. Google Fi says conditional (missed-call) forwarding is not supported; it offers Don’t forward, Ring all and Always forward in the Fi app. Use Always forward: the AI answers and puts callers through to you when they ask. From a third-party guide (read 2026-10-19), not Google Fi's own page.
Google Fi has no missed-call forwarding. Use "Every call" below: your AI answers and can put callers through to you.
Fi app → Phone settings → Call forwarding → "Don’t forward"