Q: My calls are showing on another iPhone

Did you check Settings/Phone/Calls -> on other devices. Make sure that this option to receive calls on other devices is disabled.

Stop sharing an Apple ID.

What's causing the issue is the fact that Apple is constantly enhancing iCloud services and the fact that Apple IDs were never intended to be shared.

Stop sharing IDs, at least for iCloud. Each person should have their own ID for iCloud.

Did you already check this page?

Everything’s better when shared, and sharing has never been easier. Once you’ve set up Family Sharing, all the songs, albums, movies, TV shows, books, and apps ever purchased by family members are immediately available to everyone else in the group. And, of course, so are new purchases. The content appears automatically in the Purchased tab in iTunes, iBooks, or the App Store for each family member. Just select the family member whose collection you’d like to browse, then download or play the content you choose. Other family members can access your collection in the same way. If you want to keep some purchases private, you can choose to hide individual items.

copied from:

http://www.apple.com/icloud/family-sharing/

I am having the same issue.  Why does Apple do crap like this!!!  I think it's about time to start looking at other products and devices!!!!

Why do you insist on intentionally using it in a way that is contrary to Apple's recommendations?

What is so difficult to understand about the concept of each individual having their own Apple ID?

Really!!! Why can't you do it either way??? It just makes it harder to stay with them.

Then leave.  We fellow users here don't care what you do.  If you find another phone vendor who's software and hardware best suits your needs, then by all means, switch!

bareade1 wrote:

 

Really!!! Why can't you do it either way??? It just makes it harder to stay with them.

Because that is NOT how it is designed to be used. You can drive your car on the wrong side of the road if you want to, but sooner or later, you WILL have a problem if you keep doing it.

OK, your right I can drive my car on the wrong side, but if I can drive it the right way just as I have and never had any problems.  Why should the car manufacturer  create a car that you can only drive it a certain why?

Because you have NOT been using it the "right way", that's why.

Do you have ANY idea how computers work? Apparently not. The documentation on how to use them (and an iPhone is nothing more than a very small computer with a cellular radio built in) is not just the manufacturers opinion of how it works.

If you don't want to follow simple instructions, fine, but don't come whining to us when it behaves in a way other than what you want it to.