📲 Using the M1 app (Recommended)
The easiest way to enable or disable call forwarding is directly through the M1 app:
✅ To enable call forwarding:
Open the M1 app and go to the Settings tab.
Scroll to the M1 Number section.
Under Incoming Calls, tap Set up Call Forwarding.
Select your mobile provider from the list:
Verizon Wireless
T-Mobile
AT&T
Spectrum Mobile
Google Voice
Other
Follow the on-screen steps to complete setup.
❌ To disable call forwarding:
Follow the same steps above and turn off the call forwarding option for your provider.
⚠️ Important: Disable call forwarding if you’re deleting M1
If you’re removing the M1 app or canceling your subscription, make sure to turn off call forwarding first to avoid disruptions.
If it stays on, calls to your primary number may keep forwarding to M1-even if the app is no longer installed.
ℹ️ M1 cannot disable call forwarding for you-this must be done from your device, due to carrier restrictions.
⚙️ Using iPhone Settings (alternative method)
✅ Enable:
Open the Settings app on your iPhone.
Scroll down and tap Phone.
Tap Call Forwarding.
Toggle it ON and enter your 10-digit M1 number.
Tap the back arrow to save.
❌ Disable:
Follow the same steps above and toggle Call Forwarding to OFF.
📞 Using carrier-specific codes (if Settings are unavailable)
If the Call Forwarding option is missing from your iPhone settings, you can use carrier-specific codes.
✅ Enable:
For T-Mobile or AT&T:
Open the Phone app.
Dial *21* followed by your 10-digit M1 number, then press Call.
Example:
*21*1234567890
For Verizon:
Open the Phone app.
Dial *72 followed by your 10-digit M1 number, then press Call.
Example:
*721234567890
❌ Disable:
For T-Mobile:
Open the Phone app.
Dial ##21#, then press Call.
For AT&T:
Open the Phone app.
Dial #21#, then press Call.
For Verizon:
Open the Phone app.
Dial *73, then press Call.
ℹ️ Make sure to dial these codes from your iPhone's native Phone app, not from the M1 app.
➕ Additional Carriers support:
Carrier | Enable | Disable |
Sprint | *72 1234567890 → Call | *720 |
US Cellular | *72 1234567890 → Call | *720 |
Cricket Wireless | *004*1234567890# → Call | #004# |
Metro by T-Mobile | *73 1234567890 → Call | *730 |
Boost Mobile | *28 1234567890 → Call | *38 |
Google Fi | Set via the Google Fi app or website | Disable in the app |
➡️ Replace 1234567890 with your M1 number.
Google Voice:
Google Voice has specific requirements, please follow this guide: How do I forward my Google Voice number to M1?
Google Fi
✅ Enable:
Open the Google Fi app or go to the Google Fi website.
Navigate to Settings.
Select Call Forwarding and enter your M1 number.
❌ Disable:
Remove or disable the forwarding number in the Call Forwarding settings.