Send and Receive Calls?

You need to contact Apple support via the contact support link located at the upper right hand corner of every Webpage of these Apple support communities.

Use the Device Performance and Connectivity support categories.

OR

by installing and using the Apple Support app found in the iOS App Store.

Tap the iOS App Store link below.

https://apps.apple.com/us/app/apple-support/id1130498044

OR

Call contact Apple via the support numbers found in the link bekow.

Contact - How to Contact Us - Apple

Tap the link below.

https://www.apple.com/contact/

Best of Luck to You!

Yes it is. See this for information on how to set it up.

Make and receive calls on your Mac, iPad, or iPod touch - Apple Support

Unless a prior post by you has been removed by the site Moderators - and all elements of your previous posts are intact within this thread - then you don’t appear to have posted anything untoward. Screenshots can sometimes reveal sensitive information, but nothing that remains visible appear to do so.

Well,'

Are all your other devices signed in/logged into the same Apple ID?

Posting personal information into an open, unprotected public Internet support community is unwise, not encouraged and really not allowed here, for personal data privacy reasons.

Your iPhone cell number you posted IS personal information and should not be posted into a public, open community forum, such as this.

If you are still having issues, you need to contact Apple support as I recommended.