It is important to note two things:

First, you can only install the AUTHY app on one phone. Verizon could be installed on multiple phones, and some doctor's offices installed it on staff phones and gave out their username and password.

Second, you do not lose your subscription money from Verizon. If you subscribed in September 2017, you will use Exostar at no cost until September 2017.

Bert
Pediatrics
Brewer, Maine