Watch series 6 can not make calls

Hello PlaninicIgor,

Thank you for reaching out to Apple Support Communities, and we'll be happy to help in any way we can. We understand you're having issues with making and receiving calls on your watch. Try the steps listed here to see if they resolve the issue: Make phone calls on Apple Watch

"Make phone calls on Apple Watch

Siri: Say something like:

• “Call Max”
• 
  
• “Dial 555 555 2949”
• 
  
• “Call Pete FaceTime audio”

Make a call

1. Open the Phone app  on your Apple Watch.
2. Tap Contacts, then turn the Digital Crown to scroll.
3. Tap the contact you want to call, then tap the phone button.
4. Tap FaceTime Audio to start a FaceTime audio call, or tap a phone number.
5. Turn the Digital Crown to adjust volume during the call.

Tip: To call someone you’ve recently spoken with, tap Recents, then tap a contact. To call a person you’ve designated as a favorite in the Phone app on your iPhone, tap Favorites, then tap a contact.

Enter a phone number on Apple Watch

1. Open the Phone app  on your Apple Watch.
2. Tap Keypad, enter the number, then tap .

You can also use the keypad to enter additional digits during a call. Just tap , then tap the Keypad button.

Make calls over Wi-Fi

If your cellular carrier offers Wi-Fi calling, you can use your Apple Watch to make and receive calls over Wi-Fi instead of the cellular network—even when your paired iPhone isn’t with you or is turned off. Your Apple Watch just has to be within range of a Wi-Fi network that your iPhone has connected to in the past.

To see if your carrier offers Wi-Fi calling, see the Apple Support article Make a call with Wi-Fi calling, and enable Wi-Fi calling on your iPhone.

1. On your iPhone, go to Settings > Phone, tap Wi-Fi Calling, then turn on both Wi-Fi Calling on This iPhone and Add Wi-Fi Calling For Other Devices.
2. Open the Phone app  on your Apple Watch.
3. Choose a contact, then tap .
4. Select the phone number or FaceTime address you want to call.

Note: You can make emergency calls over Wi-Fi, but when possible, use your iPhone over a cellular connection instead—your location information is more accurate. You can do this on your Apple Watch by temporarily disconnecting from Wi-Fi.

See call info on Apple Watch

While you’re talking on your iPhone, you can view call information on your Apple Watch in the Phone app . You can also end the call from your Apple Watch (for example, if you’re using earphones or a headset)."

We hope this helps.

Cheers!