This is Verizon Wireless payment services. You would typically add more time to your account, add auto pay etc....no billing. If you want to have some dull fun, you can mess with them by doing the following:
-Call back 214-907-2653.
-Select preferred language from prompt.
-Chosse selection 2 (add auto pay to your account)
-Type in 4 bogus numbers three different times and it will actually take you to a live customer service person.
-Do what you will when someone answers. (I chose to remain silent to see what they would say).