• Every Industry. Any Size.
    20 Million Users in Action.
    We build business communications applications
    that are the roadmap to your future.
  • What Apps Inspire You?
    Unified Messaging, Personal Assistant, Speech,
    Voicemail, Automated Attendant,
    Fax, and Notification.
  • Say Yes to Your
    Communications Future.
    We bring Microsoft, Avaya, Cisco and Google together.
    Who else can do that? Own your future.
  • AVST Elevates Lync
    Will Lync be your next corporate PBX?
    Discover how AVST enhances the core features
    of Lync Enterprise Voice.

For over 30 years, AVST has been Unifying Communications ®.

The Power of Choice

Our Products

Our Applications

Unified Messaging

Cloud, premise, hybrid – unified messaging delivered your way.

Personal Assistant

“What would you like to do?” Make your work life easy with Atom™.


Enable the power of speech for your organization.

Mobile Client

Secure mobile access for your business communications.


We reinvented voicemail for your future.

Automated Attendant

Greets and routes calls for faster resolution.


Accelerate information flow to your business and customers.


Outbound call notification for critical events and activities.

We love what we do and our customers do too.