Apple Watch Series 3（蜂窝版）无法接收来电问题咨询

Let's work through fixing this frustrating problem. From what you've shared, you've got the carrier setup done for standalone cellular use on your Apple Watch Series 3, and your carrier confirms everything's configured correctly—but when your iPhone's in Airplane Mode, calls go straight to your iPhone's voicemail instead of ringing on your watch. When your iPhone's active, calls work as expected.

First, let's recap the core issue to make sure we're aligned:

You completed carrier setup for using mobile data on your Apple Watch Series 3 (Cellular) without your iPhone nearby, and your carrier confirms the configuration is valid. Testing results:

• iPhone active: Calls ring on iPhone normally.
• iPhone in Airplane Mode: Calls route directly to iPhone's voicemail, with no ring on the watch.

Here are targeted, actionable steps to resolve this:

• Verify Watch Cellular Connection Status
  Grab your watch, open the Settings app, tap Cellular, and check the top of the screen. If it shows "Connected" (or your carrier's name), that's a good sign—if it says "Searching" or "No Service", toggle Cellular off and back on. You can also do this from your iPhone's Watch app: go to My Watch → Cellular, flip the switch off, wait 10 seconds, then turn it back on. A quick toggle often fixes minor connection glitches.

• Disable Call Forwarding on Your iPhone
  Incorrect call forwarding settings can hijack calls away from your watch. On your iPhone, head to Settings → Phone → Call Forwarding. Make sure this toggle is off. If it was enabled, turning it off lets calls properly route to your watch when your iPhone's unavailable.

• Reset Network Settings on Both Devices
  Network configuration bugs are a common culprit here. This will reset Wi-Fi passwords, cellular settings, and VPNs (you'll need to re-enter these later, but it's worth the fix):

  • iPhone: Go to Settings → General → Transfer or Reset iPhone → Reset → Reset Network Settings.
  • Apple Watch: Open Settings → General → Reset → Reset Network Settings.

• Re-Pair Your Watch with iPhone
  If the above steps don't work, hidden sync issues might be blocking call routing. Re-pairing often clears this up:

  1. On your iPhone, open the Watch app → tap All Watches → tap the i icon next to your watch → select Unpair Apple Watch.
  2. Follow the prompts to unpair, then set up your watch again. Choose "Set Up as New Apple Watch" (or restore from backup if you want to keep your data) and make sure to re-activate cellular through your carrier during the setup process.

• Double-Check Carrier Provisioning
  Even though your carrier said things are normal, ask them to verify that standalone call routing is enabled for your account. Sometimes cellular data is provisioned, but the specific permission for watch calling might be missing. Also, confirm your plan actually includes Apple Watch cellular calling—some basic plans don't cover this feature.

I've helped several users fix this exact issue with network resets or re-pairing, so start with those steps first. Let me know if any of these resolve your problem!

内容的提问来源于stack exchange，提问作者user258703