My family has three iPhones. One of the first things I did several years ago was to change the share name ID to our names for each phone. This continues to work for two of the phones, but my husband's phone only displays the state when he calls our landline. I checked, and it is still set to display his name. The only difference in the settings is that my daughter and I use the default names, and he has the optional customized name for his nickname. So I changed the selection to the default name. It has been over 24 hours, and caller ID still doesn't display his name. Help?