Multi-year agreement includes OSS modernization, extended support for existing platforms, and professional services aimed at strengthening Vivo's operational efficiency and service agility JERSEY CITY, NJ / ACCESS Newswire / November 11, 2025 / Amdocs (NASDAQ:DOX), a leading provider of software and services for communications and media companies, today announced that Vivo, a member of Telefónica group, has signed an agreement with Amdocs to modernize its operations support systems (OSS). The modernization ...