What is the primary function of Avaya One-X Mobile?

The primary function of Avaya One-X Mobile is to enable mobile device integration with Avaya Aura. This application allows users to access Avaya's unified communications from their mobile devices, seamlessly connecting them to the Avaya system. With Avaya One-X Mobile, users can manage their calls, check presence status, and utilize features like instant messaging, all while on the go. This integration provides significant flexibility and enhances productivity by allowing users to work from anywhere, using their smartphones or tablets as extensions of their office communications.

The other options represent different functionalities that are either part of the broader Avaya ecosystem or pertain to other specific services but do not define the core purpose of Avaya One-X Mobile. Video conferencing capabilities, managing AV resources, or serving as a voicemail interface do not encapsulate the main objective of the application, which focuses on mobile integration within the Avaya communications framework.