- Avaya is a global provider of business communications and collaboration solutions, with over 18,000 employees worldwide and $4.9 billion in annual revenues. - IP Office is Avaya's flagship product for small and medium businesses, with over 130,000 systems installed worldwide supporting over 4 million users. - IP Office provides a full suite of telephony features and supports a wide range of phone types, with applications for unified messaging, contact center, and mobility.