US Employees - The company stopped applying H1B and Green Cards since mid 2017. So, immigration wise, it is not a good bet to enter/ be in.
India Employees - Beware of entering Ensemble/ Legacy Billing system. You will work with Cobol & Amdocs internal C-program MACROS. After 4-5 years, you will realize there are no jobs on Technology side as you did not learn what is current in the market.
Policy changes - Are usually done under the table and the system of informing all impacted employees is broken. This is a workflow issue, do not mistake it for the managers.
Promotions - will not happen as there is a huge backlog of people eligible for next role but no positions exist. The company is not growing & so the managers are not to blame for stagnation within the whole org. As a entry level position, do not worry about it. The problem is more for 5+ years on wards.