Callisto is an authorized Avaya partner, providing equipment and support for Avaya IPO and Aura telephone systems. We maintain inventory in our Chesterfield warehouse and have field technicians on staff. If you decide to migrate from your on-premise equipment to the Avaya OneCloud hosted solution we can assist with this too.
Callisto Communications is an Avaya-certified partner based out of St. Louis, Missouri. Contact us for additional information.
Competitive AdvantagesWhy Callisto?
Same-day and international shipping
In House engineers & field technicians
Dozens of new and vintage product lines
150 Years combined experience
Top-notch customer service
Reliable in-house repair center