Original sentence: Amdocs , based in Ra'anana, Israel, works with billing and CRM (formerly Clarify) systems, mainly  focused on the public sector and telecommunications
Edited sentence: Amdocs , listed as a U.Amdocs' main computer center for billing is in Israel.company, with its base being in Israel, works with billing and CRM (formerly Clarify) systems, mainly  focused on the public sector and telecommunications