Carrier update?

[cellulartalk]

I have an iPhone 6S and am on AT&T. When I updated to the new iOS 9.3 I received a notification of a carrier update. I went ahead and update that also. But I have a question, what is usually in a carrier update?

More... (http://www.howardforums.com/showthread.php/1881264-Carrier-update?goto=newpost)

Courtesy of WestNet Wireless
www.westnet.ca