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T-Mobile setup guide

How to forward your T-Mobile number to an AI receptionist

Keep your existing phone number. Forward missed calls to CallWise AI. 10-second setup.

Start your 7-day free trialSee the steps
Used by home services, dental offices, and law firms

Forwarding setup — pick the mode that fits your business

T-Mobile supports up to 3 forwarding modes. Most businesses pick "When Busy or No Answer" so the phone rings first and CallWise picks up when you miss it.

Always OnWhen Busy or No AnswerRecommendedOut of Coverage

Forward all calls to CallWise

Every call goes directly to the AI.

**21*6415550100#
Example with forwarding number (641) 555-0100 — you'll get a unique number after signup
  1. Open your phone dialer
  2. Dial **21* followed by your CallWise number, then #
  3. Example: **21*16415559876#
  4. Press Call
  5. You'll see a confirmation message on screen
To turn forwarding off later: dial ##21#

Forward when busy or no answer (Recommended)

Your phone rings first. AI picks up if you don't answer.

**67*6415550100#
Example with forwarding number (641) 555-0100 — you'll get a unique number after signup
  1. Open your phone dialer
  2. Dial **67* followed by your CallWise number, then #
  3. Example: **67*16415559876#
  4. Press Call
  5. Confirmation message appears
To turn forwarding off later: dial ##67#

Forward when phone is unreachable

Only forwards when phone is off or has no signal.

**62*6415550100#
Example with forwarding number (641) 555-0100 — you'll get a unique number after signup
  1. Open your phone dialer
  2. Dial **62* followed by your CallWise number, then #
  3. Press Call
  4. Confirmation appears
To turn forwarding off later: dial ##62#
ROI Calculator

How much are missed calls costing you?

Drag the sliders below. See your lost revenue in real time.

Calls missed per week5
050
Average revenue per customer$300
$50$5,000
CallWise plan$199/mo
Switch plans to see the ROI difference

You lose

$6,450/month

That’s $77,400 per year.

CallWise pays for itself 32x over.

Your revenue saved$6,450/mo
Your CallWise cost$199/mo

Calculation: calls missed per week × 4.3 weeks × revenue per customer. Actual results vary based on industry conversion rates and closing efficiency.

Frequently asked questions

Does this work with T-Mobile?

Yes. T-Mobile uses standard feature codes for call forwarding, and CallWise AI works with every US carrier. The dial codes on this page are the exact sequences T-Mobile documents as their official call forwarding feature.

Will I lose my phone number?

No. Call forwarding does not change who owns the number — you keep it. Forwarding simply routes calls to CallWise AI when you can’t answer. You can turn it off any time and calls return to ringing your phone normally.

Can I turn forwarding off later?

Yes. One dial code turns it off: ##21#. Your phone returns to ringing normally within seconds.

How much does CallWise AI cost?

$199/month on the Essentials plan with 100 answered calls included. Every plan starts with a 7-day free trial — your first 10 calls are free. Cancel any time from the billing portal.

Ready to never miss another call?

7-day free trial. 10 calls on the house. Cancel anytime.

Start your 7-day free trial