This combination of scalability and deployment diversity allows AVST to fit itself into any UC environment, as well as create room for businesses to grow within their product lines. As customers' needs evolve, AVST can deliver an array of applications, including mobile clients, unified messaging, speech-enabled personal assistant and automated attendant, call processing, voicemail, fax, notification and other business process integration capabilities.AVST gives customers greater flexibility by leveraging their existing call-control platforms, including legacy PBXs. It has succeeded in delivering differentiated value through deeper interactions and closer relationships with customers when benchmarked against other market participants. AVST designed its UC solutions from the ground-up to support and interoperate with hundreds of third-party voice systems, including legacy time division multiplexing (TDM)-based private branch exchanges (PBXs), Centrex and IP-PBX. "The high level of interoperability not only allows AVST to offer stand-alone unified messaging solutions without a total UC deployment, but also adds particular value to businesses that have heterogeneous or disparate call-control systems in multiple locations," noted Brandenburg. "The integration capabilities of AVST's UC solutions facilitate the provision of centralized voice and unified messaging, without the expensive infrastructure forklift required in a full UC deployment." Each year, Frost & Sullivan presents this award to the company that has demonstrated excellence in implementing strategies that proactively create value for its customers with a focus on improving the return on the investment that customers make in its services or products. The award recognizes the company's inordinate focus on enhancing the value that its customers receive, beyond simply good customer service, leading to improved customer retention and, ultimately, customer base expansion. Frost & Sullivan Best Practices Awards recognize companies in a variety of regional and global markets for demonstrating outstanding achievement and superior performance in areas such as leadership, technological innovation, customer service and strategic product development. Industry analysts compare market participants and measure performance through in-depth interviews, analysis and extensive secondary research to identify best practices in the industry.