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AVST delivers solutions that increase user and business productivity. Its flagship Unified Communications platform, CallXpress, offers unprecedented interoperability and delivers advanced call processing, voicemail, unified messaging, personal assistant, fax, speech, mobile, information access and notification capabilities.
CallXpress delivers the industry's most extensive UC interoperability, connecting all major PBX brands, e-mail solutions, presence engines and business applications together. The CallXpress foundation is based on a resilient architecture that delivers remote survivability, high availability, and disaster recovery. Whether deployed as a single server solution or across multiple servers in a private cloud, CallXpress is an ideal addition to your UC deployment.



  • Speech automated attendant 
  • Speech personal assistant
  • Personal assistant
  • Server-based UM
  • Voice mail TUI emulation


  • Callers can reach your employees by simply speaking their name or department
  • Hands free operation of the system
  • User access to calendar and contacts over the telephone
  • All messages stored in the same database and access via any interface
  • Don’t have to retrain users on a new TUI


ShoreTel Innovation Network - ShoreTel Validated